УСТРОЙСТВО МОНИТОРИНГА КОРРОЗИИ ПОДЗЕМНЫХ ТРУБОПРОВОДОВ НА ГИБКОЙ ПОДЛОЖКЕ

Полезная модель относится к области защиты от коррозии и может быть использована для определения коррозионного состояния подземных трубопроводов и оценки эффективности их защиты.Устройство содержит гибкую подложку, на которой размещены единичные индикаторы, причем единичные охватывающие трубопровод индикаторы прикреплены к гибкой подложке непосредственно, а единичные параллельные трубопроводу индикаторы прикреплены на узких гибких электроизолирующих подложках под каждым единичным индикатором, начала всех единичных индикаторов электрически присоединены к общему проводнику, концы единичных охватывающих трубопровод индикаторов электрически присоединены к информационным проводникам поперечной коррозии трубопровода, концы единичных параллельных трубопроводу индикаторов электрически присоединены к информационным проводникам продольной коррозии трубопровода.Устройство повышает точность измерений за счет непосредственного охвата трубопровода гибкой подложкой с охватывающими и параллельными трубопроводу ...

УСТРОЙСТВО ОПРЕДЕЛЕНИЯ СКОРОСТИ КОРРОЗИИ ОБРАЗЦОВ

Полезная модель относится к области исследования материалов путем определения их химических или физических свойств, а именно к коррозионным пробникам для определение антикоррозионных свойств металла. Устройство определения скорости коррозии образцов содержит образцы-свидетели коррозии, выполненные из коррозийно-активных металлов, выполненных из исследуемого металла, и специальные образцы-свидетели коррозии, выполненные из металла, расположенного правее исследуемого материала в ряду электрохимических напряжений, при этом образцы-свидетели коррозии и специальные образцы-свидетели коррозии расположены друг рядом с другом и образуют гальванические пары. Техническим результатом является повышение точности определения скорости локальной коррозии металлов и сплавов. 4 з.п. ф-лы, 3 ил.

СПОСОБ ОПРЕДЕЛЕНИЯ ПОДВЕРЖЕННОСТИ УЧАСТКОВ ПОДЗЕМНЫХ СТАЛЬНЫХ ТРУБОПРОВОДОВ СТРЕСС-КОРРОЗИИ

Изобретение относится к испытательной технике и может быть использовано для определения участков стальных подземных трубопроводов с нарушенной изоляцией, подверженных стресс-коррозии. Замер сигнала сканера механических напряжений, величина которого коррелирует с величиной механических напряжений в стенке трубопровода и, как следствие, с содержанием в ее металле водорода, с труб двух рядом лежащих участков подземного трубопровода с нарушенной и ненарушенной изоляцией и сравнение его величины, с учетом результатов лабораторных тарировочных испытаний пластин из материала трубопровода при их наводороживании и измерении сигнала тем же датчиком, дает возможность определить содержание водорода в металле трубопровода на участке с нарушенной изоляцией и разработать заключение о его подверженности стресс-коррозии и необходимости замены. 7 ил., 1 табл.

Способ защиты трубопровода от геомагнитно-индуцированных токов

Изобретение относится к области защиты подземных металлических сооружений от коррозии, вызванной геомагнитно-индуцированными источниками блуждающих токов, и может быть использовано при эксплуатации подземных трубопроводов, подверженных влиянию геомагнитно-индуцированных блуждающих токов. Сущность: размещают на трубопроводе защитные устройства, содержащие токоотводящие элементы и блоки управления, подключают токоотводящие элементы к трубопроводу через нормально разомкнутые реле. Получают с геомагнитных обсерваторий данные о геомагнитных возмущениях. При достижении порогового значения параметра, характеризующего интенсивность геомагнитных возмущений, производят централизованное подключение токоотводящих элементов к трубопроводу. При уменьшении параметра ниже порогового уровня производят централизованное отключение токоотводящих элементов от трубопровода. В качестве токоотводящих элементов используют защитные заземления или протекторы. Технический результат: снижение стоимости и упрощение ...

ДЕТЕКТОР ЗАГРЯЗНЕНИЯ И КОРРОЗИИ ДЛЯ УПРАВЛЕНИЯ ПРОЦЕССАМИ ПРОИЗВОДСТВА

... 1. Способ определения возможной коррозии или загрязнения элементов процесса из-за потока флюида (жидкой среды) в трубе технологического процесса, заключающийся в том, что измеряют частотную характеристику элемента, расположенного в трубе, сравнивают измеренную частотную характеристику с сохраненным значением, и определяют коррозию или загрязнение элементов технологического процесса на основании сравнения. 2. Способ по п.1, отличающийся тем, что перед этапом измерения устанавливают элемент в трубе, причем элемент по меньшей мере частично препятствует потоку флюида, измеряют частотную характеристику элемента, сохраняют значения на основании измеренной частотной характеристики. 3. Способ по п.2, отличающийся тем, что на этапе измерения осуществляют качание частоты пьезоэлектрического элемента, соединенного с элементом, измеряют резонансную частоту элемента. 4. Способ по п.1, отличающийся тем, что изменение частотной характеристики используют в качестве характеристики типа загрязнения. 5. Способ ...

УСТРОЙСТВО МОНИТОРИНГА КОРРОЗИИ В ЗОНЕ ПРОЛЕГАНИЯ ПОДЗЕМНЫХ МЕТАЛЛИЧЕСКИХ ТРУБОПРОВОДОВ

Использование: для измерения интенсивности коррозии в зоне пролегания подземных трубопроводов. Сущность изобретения заключается в том, что устройство содержит поперечные и продольные единичные индикаторы, первую и вторую круговую рамки, коммутатор, измерители сопротивления, блоки памяти, регистры считывания, блоки выбора и регистр максимальных значений, блоки расчета скорости коррозии, регистры записи дат опроса, блок временной коррекции, датчик влажности, корректор, вычислительные блоки отношения поперечной коррозии к продольной коррозии, таймеры периодов опроса и запуска цикла, блок запуска цикла, сдвиговые регистры, блок предварительного сбора данных, блоки формирования потока передаваемых данных, блок управления, блок передачи данных и блок считывания и индикации данных. Технический результат: обеспечение возможности измерения интенсивности коррозионных процессов в продольных и поперечных направлениях. 1 ил.

СПОСОБ ЗАЩИТЫ УЧАСТКОВ ТРУБОПРОВОДОВ ОТ ГЕОМАГНИТНО-ИНДУЦИРОВАННЫХ БЛУЖДАЮЩИХ ТОКОВ И УСТРОЙСТВО ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

Группа изобретений относится к области защиты подземных металлических сооружений от коррозии, вызванной геомагнитно-индуцированными источниками блуждающих токов, и может быть использована в нефтяной и газовой промышленности при эксплуатации подземных трубопроводов, подверженных влиянию геомагнитно-индуцированных блуждающих токов. Размещают устройство для защиты трубопроводов от геомагнитно-индуцированных блуждающих токов, состоящее из протектора, электрического проводника, реле, блока управления, источника тока и измерителя напряженности магнитного поля, выполняют электрическую цепь подключения протектора к трубопроводу через реле, измеряют напряженность магнитного поля Земли, и при достижении определенного порогового уровня параметров магнитного поля Земли замыкают контактами реле цепь подключения протектора, при снижении параметров поля ниже порогового - размыкают цепь подключения протектора. Технический результат - повышение уровня защищенности трубопроводов, подверженных влиянию геомагнитно-индуцированных ...

Радиатор отопления и индикатор коррозии для радиатора отопления

Радиатор отопления с индикатором коррозии, герметично закрывающим вход в верхней части радиатора и включающим ввинченную в верхней части радиатора глухую втулку с полимерной вставкой, закрепленной в продольном отверстии глухой втулки, образец-свидетель, удерживаемый полимерной вставкой глухой втулки, и винт, ввинченный в торцевую стенку глухой втулки и используемый для выпуска из продольного отверстия глухой втулки через сквозное отверстие в торцевой стенке воздуха и теплоносителя, поступающего из верхней части радиатора через отверстие, выполненное в полимерной вставке или между стенками полимерной вставки и глухой втулки. Технический результат – контроль коррозии в радиаторе. 2 н. и 7 з.п. ф-лы, 5 ил.

УСТРОЙСТВО-ЛОВУШКА АДГЕЗИРОВАННЫХ ФОРМ БАКТЕРИЙ СИСТЕМ ТРУБОПРОВОДНОГО ТРАНСПОРТА

Предлагаемая полезная модель относится к области нефтяной промышленности и позволяет обеспечить безаварийную работу систем трубопроводного транспорта. Устройство-анализатор выполнено в виде оснащенного внутренней резьбой цилиндрического элемента с размещенным на нем стальным стержнем, который охватывает фторопластовая втулка-изолятор с установленной поверх ее составной кассетой из последовательно установленных четырех втулочных образцов-свидетелей коррозии и следующих за ними двух концевых, служащих для контроля скорости адгезии, форм бактерий шайб-ловушек, наружный диметр которых меньше наружного диаметра указанных четырех втулочных образцов-свидетелей, первая пара которых выполнена из стали, а установленная за ними вторая пара выполнена из свинца, при этом каждые компоненты упомянутой кассеты диэлектрически изолированы друг от друга. Обеспечивается повышение достоверности определения коррозионных процессов и микробиологической активности адгезированных форм СВБ. 2 ил.

Korrosionstestsonde

Korrosionstestsonde zur Erfassung der Korrosionsrate von Leitungen, Rohren oder Behältern, welche von einem korrosiven Fluid um- oder durchströmt werden, wobei die Testsonde einen Sondenkopf (16), der wenigstens zwei voneinander durch Isolierteile (8, 10) elektrisch isolierte Elektroden (7, 11) und an seinem hinteren Ende eine Endplatte (1) aufweist, sowie eine an der Endplatte (1) des Sondenkopfs (16) angeordnete Trägerlanze (15) umfasst, wobei in dem Sondenkopf (16) eine Zugeinrichtung angeordnet ist, welche den Sondenkopf (16) in Längsrichtung unter Zugspannung setzt und dadurch die Elektroden (7, 11) und die Isolierteile (8, 10) gegeneinander drückt.

Sensor head for corrosion test sensor, has traction device fixing head in longitudinal direction under tensile stress such that counter and operating electrodes and insulating rings are pushed against each other

The head has two electrodes e.g. counter electrode (7) and operating electrode (11) electrically insulated from each other by insulating rings (8, 10), where the head is limited at a front end by a tap-hole (14) and at a rear end by a disk-shaped end plate (1). A traction device is arranged between the tap-hole and the end plate. The traction device fixes the head in a longitudinal direction under tensile stress such that the electrodes and the insulating rings are pushed against each other. The end plate is formed by a disk, and transverse slots are provided in the disk. An independent claim is also included for a corrosion test sensor having a sensor head.

Korrosionsüberwachungsvorrichtung

Diese Beschreibung erläutert anhand eines Ausführungsbeispiels eine Korrosionsüberwachungsvorrichtung zum Überwachen eines Fluids, das zu einem Turbotriebwerk strömt. Die Vorrichtung basiert auf einem länglichen Grundkörperelement in Gestalt einer Gewindestange. Das längliche Grundkörperelement basiert auf Testelementen, die Materialeigenschaften aufweisen, die auf die korrosiven Komponenten ansprechen. In einem Beispiel basieren die Testelemente auf zylindrischen Röhren, die sich gleitend auf die Gewindestange schieben lassen. Die Anordnung ist in Strömungen angeordnet und wird speziell insbesondere in der Strömung von Fluid verwendet, das in einem Einlasssystem vorzufinden ist, das mit einer Turbine (z.B. einer Gas- oder Dampfturbine) verbunden ist.

Apparatus for characterising a flow through a conduit

In-line composition and volumetric analysis of vent gases and flooding of the annular space of flexible pipe

Electrical resistance sensor and apparatus for monitoring corrosion

Hose deterioration measuring method

A method of prioritizing anomalies in a buried linear conductor

Monitoring a conductive fluid conduit

A corrosion sensor for monitoring a conductive fluid conduit 109, such as an oil or gas pipeline. A power supply 121 has a reference mode of operation when it is operable to supply an alternating electric current through the fluid conduit 109 at a high frequency such that the current is confined near the surface of the fluid conduit due to the skin effect. In a sample mode of operation, the power supply 121 is operable to supply an electric current through a full thickness of the fluid conduit. A voltage measurement device 123 is operable to measure the voltage between pairs of electrical contact points so as to obtain reference values of electrical resistance of the fluid conduit when the power supply is in the reference mode of operation and so as to obtain sample values of electrical resistance of the fluid conduit when the power supply is in the sample mode of operation. A processor 125 is operable to modify the sample values of electrical resistance based on the corresponding reference ...

A device for measuring cathodic potential of a coated metal surface

An ROV-operated assembly 1 includes a probe 11 provided with a probe tip 1111 arranged to penetrate a protective layer (31, Fig 5) on a metallic object (3, Fig 5). A hammer unit 14 is arranged to impart an axial motion to the probe tip where the axial motion is a reciprocating one induced by the rotation of an input driveshaft in the hammer unit. The motion may be generated by rotating a rotor with a corrugated face which rests against a complementary face of an axially displaceable non-rotatable rod connected to the probe tip. An alternative arrangement provides the rotor with a jacket having a continuous groove and a corresponding guiding element on the non-rotatable rod. The probe can be used to measure the cathodic potential of a coated metal surface by piercing the coating.

Remote field eddy current technique for corrosion inspection of multiple pipes including transition sections

Systems and methods for corrosion detection of downhole tubulars. A method may include disposing an electromagnetic logging tool in a wellbore, wherein the electromagnetic logging tool may comprise a transmitter and a receiver; making a first measurement with the electromagnetic logging tool in a first nominal section of the wellbore, wherein the first nominal section may comprise M pipes, wherein M may be a number of pipes positioned in the first nominal section; making a second measurement with the electromagnetic logging tool in a second nominal section of the wellbore, wherein the second nominal section may comprise N pipes, wherein N may be a number of pipes in the second nominal section, wherein N may be different than M; calculating a phase difference between the first and second measurements; calculating a thickness difference between the first and second measurements; calculating a first slope from at least the phase difference and the thickness difference; making a third measurement ...

Determining permeablility based on collar responses

A method for determining tubing permeability includes conveying a tool through a tubular string in a borehole. The tool includes a transmitter that transmits a primary electromagnetic field and a receiver that receives at least one collar response. The collar response includes a secondary electromagnetic field produced in response to the primary field by a collar in the tubular string. The method further includes determining a permeability of at least one portion of the tubular string based on a magnitude of the at least one collar response. The method further includes displaying a representation of the at least one portion of the tubular string based on the permeability.

Apparatus and method for detection of corrosion

An apparatus (2) for detecting corrosion in an internal pipe bore (11) in a pipeline (1) is described, in which a tracer chamber (22) containing a first tracer (24) is formed in a portion (21) of the pipeline (1) and is bounded towards the internal pipe bore (11) by means of a chamber wall (23) having a first corrosion resistance (CR1) and including at least one wall portion (231) with a second corrosion resistance (CR2), the second corrosion resistance (CR2) being smaller than the first corrosion resistance (CR1). A method for detecting corrosion in an internal pipe bore (11) in a pipeline (1) is described as well.

Sensor

EMBEDDABLE CORROSION RATE METERS FOR REMOTE MONITORING OF STRUCTURES SUSCEPTIBLE TO CORROSION

Embeddable corrosion rate meters for remotely monitoring structures

A method of prioritizing anomalies in a buried linear conductor

Degradation sensor

A sensor for monitoring a structure or material, comprising: an elongate conducting member; and an insulating material within which is embedded the conducting material. The insulating material has one or more gaps located along the insulating material that expose the conducting member without allowing direct contact between the conducting member and the structure or material when the sensor is placed against the structure or material.

An erosion detector

Electromagnetic (EM) defect detection methods and systems employing deconvolved raw measurements

A method includes deploying an electromagnetic (EM) defect detection tool in a downhole environment having a plurality of tubular strings with different diameters. The method also includes receiving raw measurements collected by the EM defect detection tool. The method also includes deconvolving the raw measurements with another input to obtain deconvolved raw measurements. The method also includes using the deconvolved raw measurements to determine a defect in at least one of the plurality of tubular strings. The method also includes performing, by a device, an operation in response to the determined defect.

CORROSION MONITOR

An apparatus for monitoring corrosion in a pressurized system such as a water-based fire protection system comprising a corrosion monitor mounted within a section of the system containing fluid, wherein the corrosion monitor comprises a surface comprising at least one point of weakness wherein corrosion of a point of weakness causes a change in pressure in an interior chamber of the monitor, which change can be to provide a signal alerting monitoring personnel.

DETERMINING THE RESONANCE PARAMETERS FOR MECHANICAL OSCILLATORS

The prior art describes the application of mechanical oscillators for the measurement of corrosion and/or deposi-tion. Mechanical oscillators employ the use of resonance parameters, frequency and the quality factor Q, for the measurement of corrosion or deposition. However, the prior art does not consider the required precision for measuring frequency or Q in the pres-ence of noise to make these measurements. In particular, the ability of the mechanical oscillator to measure small amounts of met-al loss or deposition is not only dependent upon the mechanical design but is limited by the precision in determining the reso-nance frequency and Q. The present invention discloses methods for measuring these resonance parameters with a high precision in the presence of noise. This degree of precision is required to maximize the utility of these devices as sensitive probes for corro-sion and deposition (fouling) measurement. All of the embodiments described herein employ curve fitting consistent ...

GROUND IMPEDANCE MEASUREMENT OF A CONDUIT SYSTEM

A system to determine the ground impedance of a conduit system includes a conductive sheath and a resistor of known value. The conductive sheath is configured to surround a portion of a conductor housed within a conduit system. Capacitive coupling occurs between the sheath and the conductor to establish a voltage source. The resistor is electrically coupled between the voltage source and a metal component of the conduit system, and a voltage drop is read across the resistor to determine the health of the ground impedance of the conduit system.

METHOD OF REDUCING CORROSION IN A CRUDE UNIT

DETECTION DEVICE FOR MONITORING THE CORROSION OF A STRUCTURE, VEHICLE AND METHOD

La présente invention concerne un dispositif de détection (1) pour détecter une zone corrodée d'une structure (90). Le dispositif de détection (1) comporte au moins un capteur sacrificiel (10) et un capteur de référence (30) qui inclut moins un conducteur électrique sacrificiel (13) sujet à la corrosion, ledit au moins un conducteur électrique sacrificiel (13) étant isolé partiellement d'un milieu ambiant par une protection isolante (50), ladite protection isolante (50) comprenant au moins une fenêtre (60) mettant en contact ledit conducteur électrique sacrificiel (13) et le milieu ambiant (200) situé à l'extérieur (EXT) de la protection isolante (50), ledit capteur de référence (30) et ledit au moins un capteur sacrificiel (10) étant configurés pour être électriquement en communication avec un outil de mesure (80) électrique.

METHODS AND SYSTEMS FOR WELLBORE INTEGRITY MANAGEMENT

Methods and systems for evaluating integrity of a tubular located within a wellbore are provided. The method includes measuring an operation parameter of the wellbore, measuring a feature of the tubular two or more times to produce an integrity log each time the feature is measured, and determining a tubular integrity analysis for the tubular by using the integrity logs and the operation parameter. The tubular integrity analysis contains parameter limitations for the tubular. The method also includes determining if tubular integrity is within or outside the parameter limitations. If the tubular integrity is within the parameter limitations, then determine a duration of integrity for the tubular. If the tubular integrity is outside of the parameter limitations, then determine a location on the tubular for loss of tubular integrity.

DIRECT RESISTANCE MEASUREMENT CORROSION PROBE

A direct resistance measurement probe for measuring corrosion levels an material loss includes a hollow body, a resistive element having one surface exposed to the environment, an internal or external power source electrically connected to the resistive element, a meter for measuring the electrical resistance of the resistive element, a temperature sensing device for measuring the temperature of the resistive element; an optional device for measuring pressure; a memory for storing resistance and temperature data; and control means for applying an electric current across the resistive element, receiving the output data of the resistance meter, receiving the output data of the temperature sensing device, and storing said data into the memory. The probe does not use a comparative or ratiometric reference element.

SYSTEM AND METHOD FOR THE PREDICTION OF LEAKAGE IN A PIPELINE

The invention relates to a method for assessing the condition of at least a portion of a pipeline to predict the possibility of occurrence of leakage from the pipeline. The method includes the steps of identifying at least one portion of the pipeline to be assessed, undertaking an assessment of the wall of said portion to identify defects located thereon and the said assessment includes identifying the depth, width and length of identified defects and including reference to a value for the pressure of the fluid passing through the said pipeline portion. This allows the condition of the pipeline at the portions of the same which are most critical to be identified and this is sued to provide an indication of the pipeline as a whole without the need to investigate the entire pipeline.

PULSED EDDY CURRENT TESTING WITH DUAL-PURPOSE COILS

A Pulsed Eddy Current device for inspecting an object made of an electrically conductive material comprising: at least one dual-purpose coil serving a dual purpose of producing a supplied magnetic field in the object and measuring a produced magnetic field emitted by the object, a transmitter circuit driving the dual-purpose coil(s) with an electrical signal, a shut-off current circuit for the transmitter circuit for cutting-off a current in the dual-purpose coil(s) during a cut-off phase of the electrical signal, the shut-off current circuit applying a voltage inversion on the dual-purpose coil(s) and a receiver circuit for reading the produced magnetic field from the dual-purpose coil(s). A method for inspecting an object comprising supplying a voltage on at least one dual-purpose coil, cutting-off a current in the dual-purpose coil(s) by applying a voltage inversion on the dual-purpose coil(s) and receiving, at the dual-purpose coil(s), a produced magnetic field.

EMBEDDED WIRELESS MONITORING SENSORS

Concrete can be one of the most durable building materials where consumption is projected to reach approximately 40 billion tons in 2017 alone. Despite this the testing of concrete at all stages of its life cycle is still in its infancy although testing for corrosion is well established. Further many of the tests today are time consuming, expensive, and provide results only after it has been poured and set. Accordingly, by exploiting self-contained wireless sensor devices, which are deployed with the wet concrete, the in-situ curing and maturity measurement data can be established and employed together with batch specific concrete data to provide rapid initial tests and evolving performance data regarding the concrete cure, performance, corrosion of concrete at different points in its life cycle. Such sensors remove subjectivity, allow for rapid assessment, are integrable to the construction process, and provided full life cycle assessment.

CORROSION RATE MEASUREMENT USING SACRIFICIAL PROBE

A corrosion rate measurement system (100) includes a sacrificial probe (106) configured to be exposed to a corrosive material. A sensor (110) is arranged to detect physical changes in the sacrificial probe due to corrosion of the sacrificial probe (106) from the corrosive material. Measurement circuitry (120) is connected to the sensor (110) and provides an output indicative of a corrosion rate of the sacrificial probe (106) from exposure to the corrosive material. The sacrificial probe has a physical characteristic which causes the sacrificial probe to corrode at a non-linear rate.

DEVICE AND METHOD FOR CORROSION DETECTION AND FORMATION EVALUATION USING INTEGRATED COMPUTATIONAL ELEMENTS

An optical computing device and method for (1) determining and/or monitoring corrosion data in a given environment and (2) evaluating a downhole formation, both being accomplished in real-time by deriving the data from the output of an optical element.

MEASURING DEVICE FOR MONITORING THE CORROSION OF A STEEL REINFORCEMENT

The invention relates to a measuring device (1) for monitoring the materials that affect the corrosion of a steel reinforcement (2) in a concrete part (3), in which the measuring device (1) includes a sensor (4), which can be disposed inside the concrete part (3) in the vicinity of the steel reinforcement (2), and an external electronic evaluation device (5), which can be disposed outside the concrete part (3). To obtain a measuring device (1) of simple and robust construction, with which reliable measured values about a course of corrosion inside a concrete part (3) provided with a steel reinforcement (2) can be obtained, the invention proposes disposing at least two axially spaced-apart, wirelike probes (9, 9'), wrapped in looplike fashion around the housing (6), on the outside of the housing wall (8) of the sensor (4), which probes have a different spacing from the steel reinforcement (2) to be monitored, so that the course over time of the corrosion progressing in the direction of the ...

METHODS FOR CHARACTERIZING DENTS IN PIPELINES

The disclosure describes methods, devices and tools useful in the non-destructive inspection and the characterization of mechanical damage such as dents in pipelines. Methods, devices and tools described herein make use of a strain severity indication combined with a material loss indication such as magnetic flux leakage to determine whether a dent comprises at least one of a crack, a gouge and corrosion. The characterization of the mechanical damage in dents of pipes may be used to determine whether and when any corrective or preventive action should be carried out.

A SYSTEM AND METHOD FOR ENHANCING CORROSION RATE DETERMINATION IN PROCESS EQUIPMENT USING A TELESCOPING/ROTATING SENSOR

A system and method for optimizing the response of a metal loss sensor which is configured in a way that its insertion depth and orientation in the process fluid are adjustable. These adjustments affect local turbulence and thereby enable achieving a desired corrosion rate at the metal loss sensor. Corrosion rate comparison between the metal loss sensor and pressure containment boundary can be measured directly or indirectly by computing wall shear stresses at the sensor and the pressure containment boundary.

Measurement probe for determining the local depth of corrosion attack, process for measuring the local depth of corrosion attack.

Die vorliegende Erfindung betrifft eine Messprobe zur Bestimmung der lokalen Korrosionsangriffstiefe durch elektrische Widerstandsmessung einer elektrischen Verbindung (16) zwischen einem Korrosionskörper (1) und einer Elektrode (11), welche durch einen Isolator (2) voneinander getrennt sind und durch einen Körper derart umschlossen sind, dass eine freie Fläche (5) ausgespart wird.

Messprobe for the determination of the corrosion attack depth.

Measuring device for monitoring material affecting corrosion of steel reinforcement in concrete part, has sensor arranged inside concrete part in area of steel reinforcement

The measuring device (1) has a sensor (4) arranged inside a concrete part (3) in an area of a steel reinforcement (2) and an electronic evaluation unit (5) arranged outside of the concrete part. The sensor has housing (6), which is made up of a non-conducting electrical material. A housing wall (8) is arranged external side of measuring sensors (9,9'). The measuring sensors consist of a material, which corresponds to the corrosion characteristics of the steel reinforcement.

Measuring device for the monitoring of the corrosion of a Stahlarmierung.

Die Erfindung betrifft eine Messvorrichtung (1) zur Überwachung der die Korrosion einer Stahlarmierung (2) in einem Betonteil (3) beeinflussenden Stoffe, wobei die Messvorrichtung (1) einen innerhalb des Betonteiles (3) im Bereich der Stahlarmierung (2) anordenbaren Sensor (4) und eine ausserhalb des Betonteiles (3) anordenbare externe elektronische Auswerteeinrichtung (5) umfasst. Um eine einfach und robust aufgebaute Messvorrichtung (1) zu erhalten, mit der verlässliche Messwerte über einen Korrosionsverlauf innerhalb eines mit einer Stahlarmierung (2) versehenen Betonteiles (3) gewonnen werden können, schlägt die Erfindung vor, auf der Aussenseite der Gehäusewand (8) des Sensors (4) mindestens zwei axial voneinander beabstandete, schleifenförmig um das Gehäuse (6) herumgewickelte drahtförmige Messfühler (9, 9´) anzuordnen, die einen unterschiedlichen Abstand von der zu überwachenden Stahlarmierung (2) aufweisen, so dass der zeitliche Verlauf der in Richtung auf die Stahlarmierung (2) ...

SYSTEM AND THE METHOD OF MEASUREMENT OF ELECTRIC CURRENT BEFORE THE CONDUIT

MULTI-CHANNEL SENSOR DEVICE BASED ON BROADBAND COMMUNICATION

CARBONATION TEST PAPER TURNING APPARATUS FOR SAFETY DIAGNOSIS OF REINFORCED CONCRETE STRUCTURE

The present invention relates to a carbonation test paper turning apparatus for a safety diagnosis of a reinforced concrete structure, which is able to automatically turn a carbonation test paper, comprising: a turntable (40) to which a carbonation test paper (30) is attached; a speed reduction motor (50) which turns the turntable (40); a housing (60) in which the speed reduction motor (50) is installed; a transparent cover (70) which covers the housing (60) and the carbonation test paper (30); an inlet (72) which is formed on the transparent cover (70) and which limits a fall area of concrete powder (24) which falls from a carbonation test hole (22), which is punched on a wall surface (20), onto the carbonation test paper (30); a wall surface support body (80) which comes in contact with the wall surface (20) and which supports the housing (60); dove tail combination units (65a)(65b)(66a)(66b)(67a)(67b) which are parallelly formed on the bottom surface of the housing (60) in pairs of two ...

A coating monitoring system of wind turbines and operating method thereof

CORROSION PREVENTION PERFORMANCE DEGRADATION DETECTION SENSOR, HOT-WATER SUPPLY HEATING SYSTEM, AND EQUIPMENT

A corrosion prevention performance degradation detection sensor (7) detects the change of the concentration of a corrosion inhibiting agent contained in a solvent to which the corrosion inhibiting agent is added that inhibits the corrosion of a material to be corrosion-prevented. The corrosion prevention performance degradation detection sensor (7) has: a detection electrode (1) reacting with the corrosion inhibiting agent solved in the solvent and forming a corrosion inhibiting electrode surface film on the surface thereof; an opposite electrode (2) disposed facing the detection electrode (1) at a predetermined distance therefrom; and an AC power supply (3) for applying an AC voltage having a predetermined frequency and a predetermined voltage between the detection electrode (1) and the opposite electrode (2). The change of the concentration of the corrosion inhibiting agent in the solvent is detected based on the change of the impedance of the electrode surface film formed on the surface ...

A MECHANICAL OSCILLATOR ACTIVATED OR DEACTIVATED BY A PREDETERMINED CONDITION

The present invention is a mechanical oscillator for detection and measurement of corrosive or foreign materials. The elements include a means for mechanical excitation, and a mechanical oscillator, wherein said mechanical oscillator has a resonant frequency, f, and a quality factor, Q. A fuse fixed to the oscillator to change oscillator amplitude to or from essentially zero to resonance amplitude. In a preferred embodiment, the mechanical oscillator has the shape of a tuning fork where one region is compatible with the service fluid and the other region is incompatible with the service fluid or other contaminant. The sensor alarms when a measured amount of the incompatible material has been removed or the physical strength of the material has been compromised.

DEVICE FOR PRODUCING STANDARDIZED ASSAY AREAS ON ORGANIC COATINGS

The present disclosure is directed to a device for producing standardized assay areas on conductive substrates coated with organic coating layers. The device can be used to produce standardized assay areas for corrosion evaluation tests at an accelerated rate.

METHOD FOR ULTRASONICALLY DETECTING MULTIPLE TYPES OF CORROSION

A corrosion sensor 2 and method for its use to detect and determine the, type, location, size and growth rate of corrosion of metals and the like in a corrosive environment. The corrosion sensor 2 can distinguish between different types of corrosion such as uniform corrosion, pitting, crevice, and stress corrosion cracking. The sensor 2 detects corrosion conditions of a corrodible metal article in a corrosive environment. It has a metal probe 8 comprised of a metal which is substantially identical to that of the corrodible metal article and a transducer element 4 attached to said probe 8, which is capable of projecting and receiving ultrasonic or radio frequency signals through the probe. The received signals indicate corrosion of the probe and hence the corrodible metal article.

Method and apparatus for vertical voltage potential mapping

A method of mapping voltage potential along a metal structural member extending underground through a range of depths comprises the steps of providing a voltage meter having positive and negative terminals, a reference electrode connected to the positive terminal, and a half-cell connected to the negative terminal; forming at least one hole in the ground alongside the structural member; contacting the reference electrode with the structural member at an aboveground location; and positioning the half-cell at a series of test points in the hole(s) and taking a series of voltage potential measurements respectively corresponding to the series of test points, wherein the test points are located at different depths. Preferably, the method further comprises the step of plotting test point depth versus voltage potential. A novel drill bit for drilling the hole through earth comprises a common wood-boring auger shank and a flat masonry-style drill bit tip.

Method for detecting near neutral/low pH stress corrosion cracking in steel gas pipeline systems

A method for predicting the location of stress corrosion cracking in a steel gas pipeline in which in-line stress corrosion cracking smart tool data, external low level metal loss data and soil characterization data are compiled to predict the location of stress corrosion cracking in a steel gas pipeline segment.

Method and apparatus for vertical voltage potential mapping

A method of mapping voltage potential along a metal structural member extending underground through a range of depths comprises the steps of providing a voltage meter having positive and negative terminals, a reference electrode connected to the positive terminal, and a half-cell connected to the negative terminal; forming at least one hole in the ground alongside the structural member; contacting the reference electrode with the structural member at an aboveground location; and positioning the half-cell at a series of test points in the hole(s) and taking a series of voltage potential measurements respectively corresponding to the series of test points, wherein the test points are located at different depths. Preferably, the method further comprises the step of plotting test point depth versus voltage potential. A novel drill bit for drilling the hole through earth comprises a common wood-boring auger shank and a flat masonry-style drill bit tip.

Method and apparatus for electrochemical corrosion monitoring

A method and apparatus for simultaneously and continuously monitoring both the general and localized corrosion of a working metallic electrode is provided, wherein a low frequency, low amplitude periodic potential excitation is used to perturb the electrode around its free corrosion potential. The potential is controlled with respect to a reference electrode by means of a potentiostat, and an auxiliary electrode used to stimulate current flow. The current response of the working electrode is monitored and analyzed continuously for general and localized corrosion activity. Means are provided for validation of the integrity of the current response to the applied potential excitation. Simultaneous and continuous outputs for both general and localized corrosion activity are also provided.

SULFIDATION DETECTION SENSOR

A sulfidation detection sensor includes a rectangular parallelepiped insulating substrate, a resistor formed to adhere closely to a surface of the insulating substrate, a sulfidation detection conductor formed to adhere closely to a surface of the resistor, a protective layer that is impermeable to sulfide gas and formed to cover a portion of the sulfidation detection conductor, and a pair of electrode portions formed at both ends of the insulating substrate and connected to the resistor and the sulfidation detection conductor. The sulfidation detection conductor is made of metal having a resistance value less than that of the resistor, and includes an exposed portion exposed to the outside without being covered with the protective layer.

Method of reducing corrosion and corrosion byproduct deposition in a crude unit

A method of optimizing system parameters in a crude unit to reduce corrosion and corrosion byproduct deposition in the crude unit is disclosed and claimed. The method includes measuring or predicting properties associated with the system parameters and using an automated controller to analyze the properties to cause adjustments in the chemical program to optimize the system parameters. Adjusting the system parameters effectively controls corrosion in the crude unit by reducing the corrosiveness of a fluid in the process stream and/or by protecting the system from a potentially corrosive substance. System parameter sensing probes are arranged at one or more locations in the process stream to allow accurate monitoring of the system parameters in the crude unit.

CORROSION DETECTION DEVICE AND METHOD

MONITORING STEEL SUPPORT STRUCTURES FOR OFFSHORE WIND TURBINES

Disclosed is a method for estimating deterioration of a steel support structure (180) supporting an offshore wind turbine (181). The steel support structure being coated on a first surface with a first type of coating. The method comprising the steps of: (a) providing a first sensor (1001) having one or more sensor elements, wherein a first sensor element (1002) of said one or more sensor elements is made of a conductive material e.g. a metal and coated with the first type of coating (1007); (b) arranging said first sensor in connection with said steel support structure (180); (c) inducing an electrical current through said first sensor element (1002); (d) monitoring the deterioration of the coating (1007) of said first sensor element in a first time interval by measuring electrical properties of the first sensor element (1002) and storing the measurements as first data; (e) estimating the deterioration of the coating of said steel support structure (180) from said first data.

КОНТРОЛИРУЮЩЕЕ УСТРОЙСТВО И СПОСОБ КОНТРОЛЯ КОРРОЗИИ ПРОВОЛОЧНОЙ СЕТКИ

Изобретение относится к контролирующему устройству и способу контроля коррозии проволочной сетки. Контролирующее устройство для проволочной сетки, прежде всего для защитной сетки для стабилизации, перехвата, и/или улавливания, и/или удержания тяжелых грузов имеет по меньшей мере два входящих в зацепление друг с другом сеточных элемента, из которых по меньшей мере один сеточный элемент изготовлен по меньшей мере из одной отдельной проволоки, пучка проволок, проволочной пряди, проволочного троса и/или другого продольного элемента, по меньшей мере с одной проволокой, прежде всего изготовленной из высокопрочной стали, отличающееся наличием по меньшей мере одного блока контроля коррозии, который предусмотрен для контроля по меньшей мере одного индикатора коррозии, включающего в себя по меньшей мере одну подверженную влиянию коррозии характеристику, индикативную в отношении коррозии защитной сетки, причем индикатор коррозии позволяет определять интенсивность и/или прогресс коррозии, а блок контроля ...

УСТРОЙСТВО ИЗМЕРЕНИЯ НАПРАВЛЕНИЯ БЛУЖДАЮЩИХ ТОКОВ В ЗОНЕ ПРОЛЕГАНИЯ ПОДЗЕМНЫХ ТРУБОПРОВОДОВ

Использование: для измерения направления блуждающих токов в зоне пролегания подземных трубопроводов. Сущность изобретения заключается в том, что устройство содержит единичные индикаторы, имеющие одинаковую площадь поперечного сечения и расположенные равномерно через определенный угол по диаметрам окружности круговой внешней рамки, общий и информационный проводники, коммутатор единичных индикаторов, измеритель сопротивления единичных индикаторов, N блоков памяти, регистров считывания и блоков выбора максимальных значений последовательных данных, регистр максимального значения блок формирования потока передаваемых данных, блок передачи данных, таймеры периодов опроса и запуска цикла, блок управления, блок считывания и индикации данных, компаратор и блок запуска цикла. Технический результат: обеспечение возможности измерения и фиксации направления максимального коррозионного воздействия под действием блуждающих токов. 1 ил.

УСТАНОВКА ДЛЯ ИССЛЕДОВАНИЯ КОРРОЗИОННОЙ СТОЙКОСТИ ЦЕМЕНТНОГО КАМНЯ И БЕТОНА

Полезная модель относится к контрольно-измерительной технике для исследования долговечности цементного камня и бетонов в агрессивных коррозионно-активных средах и может использоваться для оценки долговечности цементного камня, работающего в условиях повышенных температур и давлений, находящегося против пластов, содержащих агрессивные флюиды, а также может использоваться в любой отрасли промышленности, где необходимо контролировать долговечность материалов, работающих в агрессивных средах.Установка для исследования коррозионной стойкости цементного камня и бетонов содержит, по крайней мере, один испытательный цилиндр с установленной в нем эластичной манжетой, внутри которой размещен испытуемый образец цементного камня или бетона цилиндрической формы, при этом испытательный цилиндр в нижней части имеет заглушку с отверстием, меньшим диаметра испытуемого образца, в верхней части испытательный цилиндр имеет внутреннюю резьбу, в которую ввернуто зажимное кольцо, сжимающее эластичную манжету, ...

УСТРОЙСТВО МОНИТОРИНГА НАПРАВЛЕНИЯ БЛУЖДАЮЩИХ ТОКОВ И КОРРОЗИИ ПОДЗЕМНЫХ ТРУБОПРОВОДОВ

Полезная модель относится к области защиты от коррозии и может быть использована для определения блуждающих токов в зоне пролегания подземных трубопроводов.Устройство содержит единичные индикаторы, выполненные из того же материала, что и подземные трубопроводы с расчетным сечением, обеспечивающим заданное время работы от момента установки его в грунт до полного разрушения, внешнюю рамку единичных индикаторов, общий и информационный проводники, при этом внешняя рамка выполнена круговой с радиусом, равным длине единичного индикатора, единичные индикаторы имеют одинаковую площадь поперечного сечения и расположены по диаметрам окружности круговой внешней рамки равномерно через определенный угол, начала единичных индикаторов соединены с общим проводником, а конец каждого единичного индикатора - с соответствующим информационным проводником.Устройство повышает точность определения направления протекания блуждающих токов для своевременного обнаружения и предупреждения значительных локальных повреждений, приводящих к возникновению аварийных ситуаций на трубопроводе. 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 207 152 U1 (51) МПК G01N 17/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01N 17/04 (2021.05) (21)(22) Заявка: 2021109572, 06.04.2021 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Акционерное общество "Газпром газораспределение Тула" (RU) Дата регистрации: 14.10.2021 (45) Опубликовано: 14.10.2021 Бюл. № 29 2 0 7 1 5 2 R U (54) УСТРОЙСТВО МОНИТОРИНГА НАПРАВЛЕНИЯ БЛУЖДАЮЩИХ ТОКОВ И КОРРОЗИИ ПОДЗЕМНЫХ ТРУБОПРОВОДОВ (57) Реферат: Полезная модель относится к области защиты одинаковую площадь поперечного сечения и от коррозии и может быть использована для расположены по диаметрам окружности круговой определения блуждающих токов в зоне внешней рамки равномерно через определенный пролегания подземных трубопроводов. угол, начала единичных индикаторов соединены Устройство содержит ...

ДЕТЕКТОР ЗАГРЯЗНЕНИЯ И КОРРОЗИИ ДЛЯ УПРАВЛЕНИЯ ПРОЦЕССАМИ ПРОИЗВОДСТВА

Устройство относится к детектору для определения возможной коррозии или загрязнения технологического элемента из-за технологического флюида, протекающего по технологическому трубопроводу. Устройство содержит препятствующий элемент, установленный в технологическом трубопроводе. На препятствующий элемент воздействует поток технологического флюида, способный перемещаться под действием возбуждения. При этом препятствующий элемент размещают выше по потоку от технологического элемента. Кроме того, устройство содержит чувствительный элемент, соединенный с технологическим трубопроводом. Чувствительный элемент предназначен для определения возможной коррозии или загрязнения технологического элемента по изменению частотной характеристики препятствующего элемента. Техническим результатом изобретения является обеспечение простоты использования и установки, не требуется многократных измерений давления и объема для предоставления информации о загрязнении или коррозии. 3 н. и 31 з.п. ф-лы, 7 ил.

УСТРОЙСТВО МОНИТОРИНГА СКОРОСТИ КОРРОЗИИ ПОДЗЕМНЫХ ТРУБОПРОВОДОВ

Устройство мониторинга скорости коррозии подземных трубопроводов, содержащее корпус, единичные индикаторы, выполненные из того же материала, что и подземные металлические сооружения, каждый индикатор имеет определенный расчетный диаметр, обеспечивающий заданное время работы от момента установки его в грунт до полного разрушения под воздействием почвенной коррозии, общий проводник и информационные проводники контуров, отличающееся тем, что корпус выполнен в виде набора отдельных попарно чередующихся контуров, конструктивно связанных между собой гибкими электропроводящими и диэлектрическими элементами, причем в одном из попарно чередующихся контуров единичные индикаторы располагаются сначала вдоль, а затем поперек залегания трубопровода, а в другом - единичные индикаторы располагаются сначала поперек, а затем вдоль залегания трубопровода, единичные индикаторы каждого контура с одной стороны электрически соединены с гибким электропроводящим элементом, а с другой стороны механически закреплены ...

ИНДИКАТОРНОЕ УСТРОЙСТВО МОНИТОРИНГА СКОРОСТИ КОРРОЗИИ ПОДЗЕМНЫХ ТРУБОПРОВОДОВ

Устройство относится к области защиты от коррозии и может быть использовано для определения коррозионного состояния подземных трубопроводов и оценки эффективности их защиты.Устройство содержит единичные индикаторы, общий проводник и информационные проводники контуров, начала всех единичных индикаторов электрически присоединены к общему проводнику, концы единичных охватывающих трубопровод индикаторов электрически присоединены к информационным проводникам поперечной коррозии трубопровода, а концы единичных параллельных трубопроводу индикаторов электрически присоединены к информационным проводникам продольной коррозии трубопровода, гибкий изолирующий центрирующий элемент индикаторов поперечной коррозии трубопровода, гибкий изолирующий центрирующий элемент индикаторов продольной коррозии трубопровода, изолирующие элементы единичных индикаторов.Таким образом, устройство повышает точность измерений за счет нахождения единичных индикаторов в грунте в условиях прохождения трубопровода при воздействии ...

Устройство для контроля обрастания и коррозии покрытий в текучей среде

Изобретение относится к устройствам для контроля обрастания и коррозии покрытий в текучей среде и может быть использовано в закрытых системах технического водоснабжения ТЭС для испытания противокоррозионных и противообрастающих покрытий, а также для контроля миграции нежелательных биоорганизмов. Устройство содержит вертикальный корпус, внутри которого последовательно снизу вверх установлены: подставка для размещения образцов, аксиально-лопаточный завихритель и фильтрующая сетка. При этом к стенке вертикального корпуса над фильтрующей сеткой присоединен входной патрубок, на линии которого установлены: запорно-регулирующий вентиль, расходомер и датчик температуры, а к стенке вертикального корпуса под подставкой для размещения образцов присоединен выходной патрубок. Причем вертикальный корпус содержит верхнюю крышку с окном, предназначенным для визуального контроля. На линии входного патрубка установлен датчик температуры. Технические результаты - обеспечение возможности осуществления контроля ...

СПОСОБ УМЕНЬШЕНИЯ КОРРОЗИИ И ОСАЖДЕНИЯ ПРОДУКТОВ КОРРОЗИИ В БЛОКЕ ПЕРЕГОНКИ СЫРОЙ НЕФТИ

... 1. Способ оптимизации системного параметра технологического потока в блоке перегонки сырой нефти для снижения коррозии и/или осаждения продуктов коррозии в указанном блоке, согласно которому:(a) измеряют и/или прогнозируют свойство, связанное с системным параметром, в одном или более местах блока перегонки сырой нефти;(b) определяют оптимальный диапазон, связанный с измеренным и/или предсказанным свойством, при этом оптимальный диапазон может быть установлен пользователем;(c) если измеренное и/или предсказанное свойство выходит за пределы оптимального диапазона, связанного с этим свойством, вызывают изменение поступления некоторой композиции в технологический поток, при этом указанная композиция способна корректировать свойство, связанное с системным параметром таким образом, чтобы вернуть измеренное и/или предсказанное свойство в рамки указанного оптимального диапазона;(d) необязательно: (i) преобразуют измеренное свойство во входной электрический сигнал, который может быть передан на ...

Verfahren und Vorrichtung zum Erkennen des Vorhandenseins von korrosivem Gas

An apparatus for determining the presence of corrosive gas includes a corrosive gas sensor (1) for detecting corrosive gas by a change in oscillation frequency and an oscillating section (7) for oscillating the corrosive gas sensor. A sampling section (11) samples the frequency detected by the corrosive gas sensor (1) in a predetermined cycle and a section (12) detects, every time the detected frequency is sampled by the sampling section (11), a frequency difference between the detected frequency and a reference frequency to be updated every time the frequency difference is detected. The apparatus further includes a section (13) for deciding the presence of corrosive gas when the frequency difference detected by the section for detecting frequency difference exceeds a predetermined threshold and a section (14, 15) for operating and setting the next reference frequency, which is to be compared with the detected frequency, based on the last frequency difference and the last reference frequency ...

KORROSIONSDETEKTIONSSCHALTUNG FÜR EINE LEITERPLATTE UND DAMIT VERSEHENER MOTORANTRIEB

Eine Korrosionsdetektionsschaltung nach einer Ausführungsform der vorliegenden Erfindung weist eine Isolierplatte; einen Prüfchip mit einem korrodierbaren Metall, der an der Oberfläche der Isolierplatte angebracht ist; mehrere Widerstände, die jeweils einen höheren Widerstandswert als der Prüfchip nach einer Veränderung infolge von Umweltfaktoren einschließlich eines Kontakts mit dem Prüfchip oder des Anhaftens von Staub an dem Prüfchip aufweisen; und eine Spannungsdetektionsschaltung zur Detektion der Ausgangsspannung eines Teilspannungsausgangspunkts, wenn eine Spannung an den Prüfchip und eine Spannungsteilungsschaltung, die die mehreren Widerstände verwendet, angelegt wird, auf. Die Spannungsdetektionsschaltung detektiert auf Basis einer Schwankung der Ausgangsspannung einen Bruch in dem Prüfchip durch eine Korrosion.

Korrosionssonde und Verfahren zum Einbau einer Korrosionssonde

Bei einer Sonde für eine elektrochemischen Korrosionsmessung an einer Kessel- oder Wärmetauscherwand in Rohr-Steg-Rohr-Konstruktion, die zylindrisch ausgebildet ist und die einen Abschnitt zur Aufnahme in einer Bohrung in einem Steg der Kesselwand aufweist, wird ein vereinfachter Befestigungsmechanismus und eine passive Temperierung vorgesehen durch Ausbilden des Abschnitts als ein Befestigungsabschnitt zum Befestigen der Sonde in dem Steg, wobei der Befestigungsabschnitt mit einer Keramikschicht beschichtet ist, die die Sonde elektrisch gegenüber der Kesselwand isoliert, und der beschichtete Befestigungsabschnitt in einem gekühlten Zustand einen ersten Durchmesser aufweist, der kleiner ist als der Durchmesser der Kesselwandbohrung, und im eingebauten Zustand nach Wiedererwärmung einen zweiten größeren Durchmesser aufweist derart, dass zumindest zwischen einem Teil des beschichteten Befestigungsabschnitts und der Stegbohrung Presspassung vorhanden ist.

Motor vehicle`s component e.g. metal structure, corrodibility predicting method, involves providing data that characterizes geometries of component of motor vehicle and reservoir, respectively

The method involves providing data that describes geometries of a component of a motor vehicle and a reservoir, respectively, where the reservoir is used during a dipping varnish process. Data characterizing corrodibility of the component is provided in dependence on precipitation characteristics of a dipping varnish liquid. An electrical potential in a preset period is calculated based on a current flow value and/or a voltage characteristic value between electrodes. A current density is computed based on the potential and/or the current value. The corrodibility is predicted based on the data. An independent claim is also included for a computer program product comprising memory and a software for performing a motor vehicle`s component corrodibility predicting method.

System and method for monitoring water accumulation in a pipe annulus

Passive detection of deformation under coatings

Detection system and method in concrete structures

Decice and method for monitoring the condition of subsea parts,particularly cable connectors

Corrosion sensor manufacture

Alignment of responses for thickness estimations in a corrosion detection tool

Systems and methods for corrosion detection of downhole tubulars. A method may comprise disposing a corrosion detection tool in a wellbore, wherein the wellbore comprises a plurality of concentric pipes, wherein the corrosion detection tool comprises: a primary array section comprising a primary array transmitter and primary array receivers; and a high resolution array section comprising a high resolution array transmitter and high resolution array receivers; making a measurement with the primary array section to obtain primary array measurements; making a measurement with the high resolution array section to obtain high resolution array measurements; equalizing resolutions of the primary array section and the high resolution array section; calculating an offset using cross-correlation between the primary array measurements; shifting the primary array measurements or the high resolution array measurements using the offset to provide shifted data; and performing an inversion on the shifted ...

Method of testing a pipeline

Method and apparatus for determining the presence of corrosive gas

Apparatus and method for detecting corrosivity in a pipeline

Improved Corrosion Meter

... 1,167,602. Electro-chemical analysiscorrosion. PETROLITE CORP. Jan. 4, 1967, No.451/67. Heading G1N. To determine the corrosion rate of e.g. steel by polarisation measurements three substantially identical electrodes are used, and the D.C. current required between two of them to produce a 10 m.v. polarization potential between either the anode or the cathode and the third "reference" electrode, is measured. CALIBRATION - by weighing the electrodes during a corrosion test, the ammeter may be calibrated directly in loss in milligrams/square decimeter/day. CELL CONSTRUCTION may comprise an insulating 2" pipe plug with conducting inserts adapted to take “" diameter rod electrodes. The inserts are protected from the corrosive electrolyte (e.g. brine) by a P.T.F.E. cover.

Sensing element for monitoring condition of an article

Verfahren zum Bestimmen des Korrosionsrisikos von Anlagen

The invention relates to a method for determining the corrosion risk of installations in natural waters due to biofilm formation, comprising: a) providing a device for measuring electrode potentials, which comprises at least one metal sample and at least one reference electrode, at a point in the immediate vicinity of the installation within the body of water of the natural water; b) measuring potential differences between the at least one metal sample and the at least one reference electrode over a sufficient period of time such that any potential drift of the sample caused by ennoblement due to biofilm formation can be determined; c) comparing the measured potential difference with one or more reference values for the metal of the metal sample; and d) estimating if or when the potential difference, because of biofilm formation, has reached or can reach a critical value that brings about corrosion of said metal at said point of the natural water.

Mask for the manufacture of corrosion sensor

A method of manufacturing a sensor (1), such as a corrosion sensor, a mask including a series of masking elements (21, 22, 23) for masking a corresponding series of sensing elements (12, 13, 14), a sensing element having such a mask and a sensor are provided. The sensor (1) includes a number of metallic strips (12, 13, 14) mounted on a non-conducting substrate (9) and a module (3) for forming electrical connections to the strips whereby to enable communication between the strips (12, 13, 14) and monitoring equipment for the sensor (1). The module includes a number of wire connections (15, 16, 17, 18) and the method includes the steps of encapsulating the wire connections within a flexible chemical and heat resistant sealing compound and subsequently encapsulating the flexible sealing compound within a second sealing compound by an injection moulding process. The sensing elements (12, 13, 14) are covered by the masking elements (21, 22, 23) prior painting the sensor (1) with a corrosion-inhibiting ...

SYSTEM AND METHOD FOR CORROSION PREDICTION IN OIL AND GAS PIPELINE

SYSTEM AND METHOD FOR CORROSION PREDICTION IN OIL AND GAS The present invention relates to a corrosion prediction system for oil and gas pipeline. The object is to detect the rate of corrosion in oil and gas pipeline using oT and machine learning approach. An associative classification based on multiple association rules is applied in the proposed prediction system. For detecting the rate of corrosion, the values of basic parameter of gas in the pipeline is calculated such as temperature, shear stress, and pressure of CO2 and pH value. By using these parameters and putting these values to norsok corrosion calculation method using ladder logic, the corrosion rate in gas pipes is calculated. Following invention is described in detail with the help of Figure 1 of sheet 1 showing the system execution flow and Figure 2 of sheet 2 showing flow chart. Fiur I 4 ] 6 r L - -------------------- r -------------------- Figue ...

A metal loss probe and method for fabricating the metal loss probe

The present invention describes the connecting of a corrodible material (100, 105) with a non-corrodible material (110, 115) by electron beam welding so that the corrodible (100, 105) material is not affected by non-corrodible material (110, 115) during the welding process. Employing an electron beam welding process not only minimizes unintended alloying of the corrodible element (100, 105) but also minimizes the width of the weld heat affected and fusion zones. This fabrication method is necessary to ensure that the corrodible element (100, 105) faithfully replicates the wastage of the subject metal.

SYSTEM AND METHOD FOR PIPELINE INTEGRITY MONITORING

A system and method for monitoring condition of a vessel coating layer and detecting compromise of the coating and its causes are provided. The system includes a sensor positioned on a coating layer of the vessel, and a reader for reading a resonant behavior of the sensor. The method includes positioning an array of a plurality of sensors on the coating layer, reading a resonant frequency of each sensor using the reader, and monitoring the resonant frequency of the sensors for a variation in the resonant frequency of at least one sensor, the variation in the resonant frequency of the at least one sensor indicating a change in the condition of the coating layer. Variations in the resonant frequency being indicative of breaches such as water penetration, air penetration, corrosion, stress, strain, and cracking. Thus, proactive prediction of a cause and location of coating breaches is accomplished.

DETECTION DEVICE FOR MONITORING THE CORROSION OF A STRUCTURE, VEHICLE AND METHOD

La présente invention concerne un dispositif de détection (1) pour détecter une zone corrodée d'une structure (90). Le dispositif de détection (1) comporte au moins un capteur sacrificiel (10) et un capteur de référence (30) qui inclut moins un conducteur électrique sacrificiel (13) sujet à la corrosion, ledit au moins un conducteur électrique sacrificiel (13) étant isolé partiellement d'un milieu ambiant par une protection isolante (50), ladite protection isolante (50) comprenant au moins une fenêtre (60) mettant en contact ledit conducteur électrique sacrificiel (13) et le milieu ambiant (200) situé à l'extérieur (EXT) de la protection isolante (50), ledit capteur de référence (30) et ledit au moins un capteur sacrificiel (10) étant configurés pour être électriquement en communication avec un outil de mesure (80) électrique.

A MECHANICAL OSCILLATOR ACTIVATED OR DEACTIVATED BY A PREDETERMINED CONDITION

The present invention is a mechanical oscillator for detection and measur ement of corrosive or foreign materials. The elements include a means for me chanical excitation, and a mechanical oscillator, wherein said mechanical os cillator has a resonant frequency, f, and a quality factor, Q. A fuse fixed to the oscillator to change oscillator amplitude to or from essentially zero to resonance amplitude. In a preferred embodiment, the mechanical oscillato r has the shape of a tuning fork where one region is compatible with the ser vice fluid and the other region is incompatible with the service fluid or ot her contaminant. The sensor alarms when a measured amount of the incompatibl e material has been removed or the physical strength of the material has bee n compromised.

METHOD OF REDUCING CORROSION IN A CRUDE UNIT

A method of optimizing system parameters in a crude unit to reduce corrosion and corrosion byproduct deposition in the crude unit is disclosed and claimed. The method includes measuring or predicting properties associated with the system parameters and using an automated controller to analyze the properties to cause adjustments in the chemical program to optimize the system parameters. Adjusting the system parameters effectively controls corrosion in the crude unit by reducing the corrosiveness of a fluid in the process stream and/or by protecting the system from a potentially corrosive substance. System parameter sensing probes are arranged at one or more locations in the process stream to allow accurate monitoring of the system parameters in the crude unit.

HYBRID RESILIENT AND FRANGIBLE LAYERED STRUCTURAL HEALTH SENSOR

A sensor for monitoring and testing for both possible fractures and corrosion in structural elements is disclosed. A frangible material layer including a thin breakable conductor sense loop and a resilient material layer including a conductive corrosion sense loop bonded on top of the frangible layer form an assembly which is bonded to a structural element to be tested. Portions of the conductive corrosion sense loop are exposed through weep holes in the resilient material layer. A fracture in the bonded structural element induces a disruption in both the frangible membrane and the thin breakable conductor sense loop and corrosion of the conductive corrosion sense loop changes its electrical properties. Measured electrical property changes of the disrupted conductor sense loop and/or the conductive corrosion sense loop reveal possible damage. Both sensor layers may utilize a single shared wireless communications tag to couple to an electrical measuring device.

AN IMPINGEMENT JET TEST RIG FOR MEASUREMENTS OF EROSION-CORROSION OF METALS

In a test rig for measurements of erosion-corrosion of metals in multiphase fluids encountered in various industrial applications, it is essential that the rig creates conditions that reproduce the actual ones so that the measurement results are representative of those in the field. In this invention, an impingement jet test rig is developed to enable generation of multiphase fluid through a negative pressure principle to mix sufficiently the liquid and solid phases. Robotic controlling and monitoring of the fluid flow parameters, such as flow velocity, concentration of sands, the impinging angle of fluid to sample, gassing environment and the operating temperature, ensure the accuracy of the fluid flow condition. The erosion-corrosion tests are conducted in an independent sample chamber, where the metal sample and accessory electrodes are installed. Moreover, the rig enables separation of solid and liquid phases immediately after the impingement of fluid on sample, providing protection ...

METHOD FOR QUANTIFYING CORROSION AT A PRESSURE CONTAINING BOUNDARY

A method for determining the amount and rate of corrosion which has occurred on the surface of a process unit by measuring corrosion with a corrosion sensor and measuring at least one parameter inside the process unit. Corrosion on internal surfaces of a process unit can then be determined.

Device to indicate critical corrosion of a metallic structure

The present invention relates to a device to indicate a predetermined critical corrosion of a metallic structure located in soil, water or concrete environment. The device comprises a probe that has a closed tubular container intended to contain a pressurized medium, and that has a wall thickness t that corresponds to the predetermined critical corrosion. A protective coating is arranged essentially over the entire outside of the container with the exception of a surface that is intended to be subjected to corrosion attack. The container is allowed to corrode so that the container becomes perforated, whereupon the pressure of the pressurized medium falls. The pressure change is measured by means of a pressure gauge, and in this way, information is obtained about the fact that the corrosion has reached the predetermined critical level.

Corrosion sensors

Corrosion sensor apparatus are disclosed for detection of contamination affecting metal based components and devices. For example, an apparatus comprises: a set of corrosion sensor elements comprising a first corrosion sensor element and at least a second corrosion element, each corrosion sensor element being coupled between a source and a monitor, wherein a width of the first corrosion sensor element is different than a width of the second corrosion sensor element, wherein each corrosion sensor element is susceptible to corrosion caused by an operating environment of the corrosion sensor elements; and a set of reference elements comprising a first reference sensor element and at least a second reference sensor element, each reference sensor element being coupled between the source and the monitor, wherein a width of the first reference sensor element is substantially equal to the width of the first corrosion sensor element and a width of the second reference sensor element is substantially equal to the width of the second corrosion sensor element, wherein each reference sensor element is not substantially susceptible to corrosion caused by the operating environment of the corrosion sensor elements.

Methods and devices for sensing corrosion under insulation (cui)

A method of sensing corrosion of a pipe covered by a layer of insulation comprises positioning a CUI sensor radially adjacent an outer surface of the pipe. The CUI sensor comprises a non-conductive base having a first end and a second end opposite the first end. In addition, the CUI sensor comprises a first test circuit mounted to the base. The first test circuit includes a first conductor, a second conductor, and a first testing element extending between the first conductor and the second conductor. Further, the method comprises exposing the first testing element to the same environment as the outer surface of the pipe. Still further, the method comprises determining whether the first testing element has corroded through. Moreover, the method comprises assessing whether corrosion of the pipe has occurred based on the determination of whether the first testing element has corroded through.

Corrosion sensor and method for manufacturing a corrosion sensor

A corrosion sensor includes a plurality of conductive portions and at least one non-conductive portion between adjacent conductive portions, wherein the at least one non-conductive portion has a dimension less than approximately 500 microns. A method for manufacturing a corrosion sensor includes applying a non-conductive material to a substrate and applying a conductive material to discrete locations on the non-conductive material. The method further includes applying a brazing material around each discrete location of the conductive material.

Electrochemical Corrosion Potential Probe Assembly

An electrochemical corrosion potential (ECP) probe assembly for monitoring ECP in a high velocity reactor line includes an airfoil shaped ECP cover that improves the streamlines over and around an ECP sensor. The airfoil shaped cover includes flow holes drilled normal to the surface of the ECP cover. As such, the direction of flow of reactor water into the ECP probe assembly is altered to reduce the flow rate internal to the ECP cover sufficiently to prevent damage to the ECP probes. To facilitate use as a retrofit component, the ECP cover may have an elliptical section that is contiguous to a circular section that conforms to the geometry of existing probe wells and probe sub-assemblies.

Method to manufacture a sensor

A method to manufacture a sensor is provided and includes forming a foamed core of a first material with a hole defined therein, inserting a rod into the hole, filling the core with a slurry of a second material and curing the second material.

Wireless surface acoustic wave corrosion sensor and interrogation system for concrete structures

A SAW sensor disposed in or on a material. The sensor comprises an antenna having a sacrificial link in at least one antenna element, wherein the sacrificial link is exposed to degrading elements within or on a surface of the material, a SAW transducer responsive to an interrogation signal for generating an incident acoustic wave, a reflector responsive to the incident SAW for creating a reflected SAW, the reflected SAW received by the transducer, the transducer for creating a response signal responsive to the reflected SAW, and the response signal transmitted from the antenna, characteristics of the response signal dependent on a condition of the sacrificial link.

DETECTION OF REINFORCEMENT METAL CORROSION

Systems, devices, and/or methods for use in detection of reinforcement metal corrosion within material, such as concrete, are described. The systems, devices, and/or methods may use a passive sensor located within the material and an interrogator located outside of the material that may be used to interrogate the passive sensor and to receive a signal from the passive sensor representative of corrosion potential of reinforcement metal. 1. A system for detecting corrosion of metal within material , wherein the system comprises: reinforcement metal,', 'reference metal, and', 'passive sensing circuitry electrically coupled to the reinforcement metal and the reference metal and configured to measure a potential between the reinforcement metal and the reference metal, wherein the sensing circuitry is further configured to wirelessly transmit a signal representative of a corrosion potential of the reinforcement metal based on the potential between the reinforcement metal and the reference metal when energized; and, 'a sensor portion locatable within the material, wherein the sensor portion comprisesan interrogator portion locatable outside of the material, wherein the interrogator portion comprises interrogating circuitry configured to wirelessly transmit energy to the sensing circuitry of the sensor portion and to wirelessly receive the signal representative of the corrosion potential from the sensing circuitry of the sensor portion.2. (canceled)3. (canceled)4. The system of claim 1 , wherein the sensing circuitry is further configured such that the resonant frequency of the signal representative of the corrosion potential shifts in response to the potential between the reinforcement metal and the reference metal.5. The system of claim 4 , wherein the interrogating circuitry of the interrogator portion is further configured to generate a corrosion potential value representative of the corrosion potential of the reinforcement metal based on the resonant frequency of the ...

Method and Apparatus for Inspection of Corrosion and Other Defects Through Insulation

Detection of corrosion and other defects in piping is needed to prevent catastrophic pipeline failure. Sensors, systems and methods are provided to enable detection of such defects. These apparatus and methods are configured to characterize pipe protected by insulation and conductive weather protection. The sensors may utilize inductive and/or solid state sensing element arrays operated in a magnetic field generated in part by a drive winding of the sensor. Multiple excitation frequencies are used to generate the magnetic field and record corresponding sensing element responses. Relatively high excitation frequencies may be used to estimate the properties of the weather protection and sensor lift-off while lower frequencies may be used to detect internal and external pipe damage. Linear arrays may be moved to generate damage images of the pipe providing size and location information for defects. Two dimensional sensor arrays may be used to provide imaging without moving the sensor. 19-. (canceled)10. A system for detecting damage in a hollow cylinder through an outer non-conducting layer which is further surrounded by a thin conducting layer , the system comprising:a sensor having an array of sensing elements, a drive winding, and a gap therebetween;an analyzer operably connected to the sensor and configured to drive a current in the drive winding at a plurality of measurement frequencies and to measure a response of each sensing element in the array at each measurement frequency; anda processor configured to estimate at least one material property of the thin conducting layer from at least the response of the sensing elements of the array at a first measurement frequency among the plurality of measurement frequencies,estimate a spacing between the thin conducting layer and the hollow cylinder, and a wall thickness of the hollow cylinder from at least the response of the sensing elements of the array at a second measurement frequency among the plurality of ...

Method for measuring corrosion in a concrete building

The invention relates to a process for controlling the corrosion of a concrete structure, in which said structure includes at least one sensor comprising a metal element located at a determined depth between the surface of the concrete and the first reinforcement bed, said process including the measurement of the corrosion of said metal element by implementing: the induction heating of said metal element, by applying magnetic excitation above the surface of the structure, the production of at least one thermographic image of the surface of the structure, and the deduction, on the basis of the thermographic image, of the degree of corrosion of the metal element. The invention also relates to a process for producing a concrete structure, in which at least one sensor including a metal element is placed in the concrete in order to subsequently implement said corrosion inspection process.

SYSTEM AND METHOD FOR ENHANCING CORROSION RATE DETERMINATION IN PROCESS EQUIPMENT USING A TELESCOPING/ROTATING SENSOR

A system and method for optimizing the response of a metal loss sensor which is configured in a way that its insertion depth and orientation in the process fluid are adjustable. These adjustments affect local turbulence and thereby enable achieving a desired corrosion rate at the metal loss sensor. Corrosion rate comparison between the metal loss sensor and pressure containment boundary can be measured directly or indirectly by computing wall shear stresses at the sensor and the pressure containment boundary. 1. A method for adjusting the metal loss rate of a metal loss sensor installed adjacent a pressure containment boundary in one of a piping and a process unit that is exposed to a fluid flow of a corrosive fluid comprising:measuring the corrosion rate of the metal loss sensor installed adjacent the pressure containment boundary;relating the corrosion rate at the metal loss sensor to the corrosion rate at the pressure containment boundary; andadjusting the position of the metal loss sensor with respect to the fluid to achieve a desired relationship between the corrosion rate at the metal loss sensor and the pressure containment boundary.2. The method of wherein the relating the corrosion rates is accomplished by determining the wall shear stress associated with the flow turbulence.3. The method of wherein the relating the corrosion rates is accomplished by a direct measurement of the corrosion rate at the pressure containment boundary.4. The method of wherein the wall shear stress is determined using computational fluid dynamics.5. The method of wherein the direct measurement of the pressure containment boundary is made using nondestructive testing.6. The method of wherein the direct measurement of the pressure containment boundary is made using coupons fixed to the pressure containment boundary.7. The method according to claim 1 , wherein said metal loss sensor is a mechanical oscillator.8. The method according to claim 1 , wherein the fluid flow is stagnant.9. ...

HAND-DEVICE, AND METHODS FOR EXAMINING A CORRODIBLE METAL OBJECT FOR CORROSION

A hand-device is described for penetrating a heat-insulating layer of a corrodible metal object and for examining a pipeline for corrosion, preferably for penetrating a heat-insulating layer of a corrodible metal pipeline, with a penetrating body that comprises a pointed section for displacing the insulating layer and a holding section for receiving a driving force, and a detecting device for generating a signal as a response to a stimulus caused by corrosion, wherein the detecting device is arranged proximally to the pointed section of the penetrating body. Corresponding methods as well as uses are also described. 2. Hand-device according to claim 1 , characterised in that the pointed section is reversibly detachably arranged on a base element of the penetrating body.3. Hand-device according to claim 1 , characterised in that the penetrating body and/or the pointed section has/have a circular claim 1 , elliptical or polygonal cross-section.4. Hand-device according to claim 1 , characterised in that the penetrating body and/or the pointed section is/are formed straight claim 1 , curved or spirally shaped.5. Hand-device according to claim 1 , characterised in that the penetrating body and/or the pointed section has/have a cross-sectional diameter in the range from 4 to 20 mm.6. Hand-device according to claim 1 , characterised in that the distance between the penetrating end of the pointed section of the penetrating body and the holding section is in the range from 150 to 1000 mm.7. Hand-device according to claim 1 , characterised in that the holding section has a length in the range from 110 to 220 mm.8. Hand-device according to claim 1 , characterised in that the pointed section is formed at its penetrating end as a unilaterally tapered or multilaterally tapered wedge claim 1 , or as a wedge-shaped or projectile-shaped tip claim 1 , or as a wedge-shaped claim 1 , spherical or projectile stump.9. Hand-device according to claim 1 , characterised in that the detecting ...

Corrosion detector apparatus for universal assessment of pollution in data centers

A compact corrosion measurement apparatus and system includes an air fan, a corrosion sensor, a temperature sensor, a humidity sensor, a heater element, and an air flow sensor all under control to monitor and maintain constant air parameters in an environment and minimize environmental fluctuations around the corrosion sensor to overcome the variation commonly encountered in corrosion rate measurement. The corrosion measurement apparatus includes a structure providing an enclosure within which are located the sensors. Constant air flow and temperature is maintained within the enclosure where the corrosion sensor is located by integrating a variable speed air fan and a heater with the corresponding feedback loop control. Temperature and air flow control loops ensure that corrosivity is measured under similar conditions in different facilities offering a general reference point that allow a one to one comparison between facilities with similar or different pollution levels.

Method And Device for Measuring Corrosion Metal Loss

A method and system for detecting corrosion metal loss. One may provide a guided wave probe that includes an electromechanical device and a corrosion probe. This may be followed by measuring a baseline guided wave attenuation value of the corrosion probe with no corrosion. One may then periodically measure the guided wave attenuation of the corrosion probe and detect an increase in guided wave attenuation values and identify metal corrosion associated with the increase in guided wave attenuation values. This may then be followed by estimating the corrosion metal loss of the metallic component.

Method and apparatus for monitoring deposition

The present invention concerns an apparatus for deposition monitoring in a water system comprising a deposition measurement system, a DC power supply connected to a conductive deposition monitoring surface and a counter electrode, the apparatus has a first treatment configuration and a second treatment configuration, wherein one of the treatment configurations removes biofilm from the conductive deposition monitoring surface, and the other treatment configuration removes inorganic scale deposition from the conductive deposition monitoring surface.

Reflective sensor for detection of material degradation

A sensor for detecting material degradation may include an optical fiber and a housing through which the optical fiber extends. An end cap may be affixed to an end of the housing. Light provided through the optical fiber may be reflected off of the end cap back through the optical fiber. The end cap may be made of a material of interest, and may be situated in an environment wherein the material of interest is present. A light source may provide input light through the optical fiber. A portion of the input light may be reflected off of the end cap. A light receptor may receive the reflected light via the optical fiber. A processing unit may be adapted to compare a measured intensity of the reflected light to a threshold, and to initiate an alarm condition if the measured intensity is below the threshold.

DEVICE AND METHOD FOR MONITORING BIOCIDE DOSING IN A MACHINE

Embodiments of the present disclosure include methods to control the quantity of vapor phase corrosion, devices, and the like. 1. A method for monitoring the vapor phase corrosion in a paper or board machine , comprising:obtaining information regarding the rate of vapor phase corrosion over a time period; andusing the information to determine how to adjust the dosing of an oxidizing biocide in a paper or board making process.2. The method of claim 1 , wherein the information is obtained using a modified electrical resistance (ER) probe equipped with an ER probe and a cooling unit disposed around the ER probe.3. The method of claim 2 , wherein the information is obtained using a temperature measurement sensor to measure the temperature of one or more of the following: the ER probe claim 2 , the air around the ER probe claim 2 , or the air outside of the ER probe.4. The method of claim 2 , further comprising:adjusting the amount of the oxidizing biocide based on the information obtained regarding vapor phase corrosion.5. The method of claim 1 , further comprising:adjusting the amount of the oxidizing biocide based on the information obtained regarding vapor phase corrosion.6. The method of claim 2 , wherein obtaining includes measuring an electrical resistance of an element in the modified ER probe.7. The method of claim 6 , wherein an increase in the electrical resistance of the element over a time period indicates that the element was undergone reduction claim 6 , and wherein a rate of corrosion is determined from the reduction of the element over the time period.8. The method of claim 3 , further comprising: controlling the temperature difference between the air outside of the modified ER probe and the surface of the ER probe.9. A method of claim 1 , wherein obtaining information regarding the rate of vapor phase corrosion over a time period is by a computing device; andusing the information to determine how to adjust the dosing of an oxidizing biocide in a paper ...

TOOL FOR MEASURING CORROSION IN OIL WELLS AND METHOD FOR MEASURING CORROSION

A corrosion measuring tool for controlling corrosion in an oil well comprising a tubing, wherein the tool comprises a hollow cylindrical barrel comprising a cylindrical wall, an upper end and a lower end; a hollow element located at the upper end of the hollow cylindrical barrel, wherein said hollow element comprises a conical upper portion and a cylindrical lower portion, the cylindrical lower portion being capable of sliding within the upper end of the barrel, wherein the cylindrical lower portion has linkage and retention sliding means to link and retain the hollow cylindrical barrel; expandable means located at the upper end of the hollow cylindrical barrel, below the conical upper portion, comprising fastening means to the tubing, wherein the movement of the hollow element relative to the barrel in a downwardly direction causes the conical upper portion to penetrate into the expandable means, forcing the expandable means to expand outwardly, putting in contact said fastening means with the tubing, while the movement of the hollow element in an upwardly direction releases the expandable means to retract inwardly and separates de fastening means from the tubing; at least one coupon for corrosion measurement; and an elongated member longitudinally and eccentrically fixed at the lower end of the barrel comprising mounting means for each of the at least one coupon, wherein the mounting means are aligned along the elongated member. 1. A corrosion measuring tool for controlling corrosion in an oil well comprising a tubing , the tool comprising:a hollow cylindrical barrel comprising a cylindrical wall, an upper end and a lower end;a hollow element located at the upper end of the hollow cylindrical barrel, wherein said hollow element comprises a conical upper portion and a cylindrical lower portion, the cylindrical lower portion being capable of sliding within the upper end of the barrel, wherein the cylindrical lower portion has linkage and retention sliding means to ...

DETECTION SYSTEM AND METHOD OF DETECTING CORROSION UNDER AN OUTER PROTECTIVE LAYER

Incoherent millimetre wave, sub-millimetre wave and terahertz test signals are used to probe metal substrates that are covered by a protective coating or outer layer, such as paint or thermal insulation, obscuring direct assessment of the substrate. The incoherent test signals, which may be from a naturally occurring passive source (such as the sky) and/or from an active noise source, provide signal dispersion and angular variation of the test signals with respect to angular incidence to the substrate. Illumination of the substrate permits differentiation between un-corroded and corroded sections of the sample because reflectivity (and emissivity) from a metal-based substrate is heavily dependent on the surface resistivity which in turn is dependent on the corroded state. A detector/camera is arranged to pick up reflections from the substrate and an associated control system identifies regions of the sample that reflect the test signal illumination differently or otherwise indicate a variation from a reference value. The differences therefore signify the presence or lack of corrosion or, indeed, the presence of other abnormalities within or on the substrate. 1. A method of detecting the presence of anomalies in or on a substrate covered by a protective coating or layer , the method comprising:observing reflectivity from the substrate arising from incident electromagnetic waves produced from wide-angled illumination from a first incoherent source, the incident electromagnetic waves having millimetre or sub-millimetre wavelengths or having a frequency below about thirty terahertz; contrasting observed reflectivity in adjacent areas of the substrate; and', 'contrasting observed reflectivity of an area of the substrate under test against a reference reflectivity value anticipated for the area of the substrate under test., 'identifying the presence of anomalies in the substrate by at least one of2. The method of claim 1 , wherein the first incoherent source is a passive ...

DISPOSABLE WITNESS CORROSION SENSOR

Corrosion sensors are described. The corrosion sensors may include components formed from carbon nanotube structures and a corroding element formed of a material which corrodes more quickly than a target material being monitored by the corrosion sensor. The corroding material may be exposed to the environment to which the target material being monitored is exposed. The corrosion sensor may be passive, thus consuming little power. 1. A low power wireless sensor system for monitoring a state of corrosion of a target material , the sensor system comprising:a housing;a witness corrosion sensor disposed within the housing and comprising a first resistive arm with a first resistance and a second resistive arm with a second resistance, the first resistive arm comprising a sensor element connected in parallel with at least one resistor comprising carbon nanotubes, and the second resistive arm comprising at least one resistor comprising carbon nanotubes;processing circuitry disposed within the housing and configured to measure a difference between the first resistance and the second resistance and to determine a state of corrosion of the target material based on a difference between the first resistance and the second resistance;an energy storage module disposed within the housing and configured to store electrical energy and to provide power to at least a portion of the processing circuitry; anda wireless communication module coupled to the processing circuitry and configured to wirelessly communicate information external to the housing.2. The low power wireless sensor system of claim 1 , wherein the state of corrosion is an amount of corrosion.3. The low power wireless sensor system of claim 1 , wherein the sensor element has a variable resistance configured to vary based at least in part on a state of corrosion of the sensor element.4. The low power wireless sensor system of claim 3 , wherein the sensor element is configured to be disposed within a same environment as the ...

INCREMENTAL TIME LAPSE DETECTION OF CORROSION IN WELL CASINGS

Apparatus and methods to investigate a multiple nested conductive pipe structure can be implemented in a variety of applications. A pipe characterization tool obtains first measurements of multiple nested conductive pipes at a first time subsequent to placement of at least one of the multiple nested conductive pipes in a wellbore, and at a second time subsequent to the first time. Processing circuitry calculates a thickness change of the multiple nested conductive pipes between the first time and the second time and predicts future thickness based on this thickness change. Well treatment decisions can be made based on predicted future thickness. Additional apparatus, systems, and methods are disclosed. 1. A method comprising:obtaining first measurements of multiple nested conductive pipes at a first time subsequent to placement of at least one of the multiple nested conductive pipes in a wellbore;obtaining second measurements of the multiple nested conductive pipes at a second time subsequent to the first time;calculating a thickness change of the multiple nested conductive pipes between the first time and the second time;predicting a future thickness of the multiple nested conductive pipes at a time subsequent to the second time, based on the thickness change; andgenerating a well treatment decision based on the future thickness.2. The method of claim 1 , wherein calculating the thickness change includes comparing raw measurement signals obtained at the first time to raw measurement signals obtained at the second time to calculate an erosion rate of the multiple nested conductive pipes.3. The method of claim 1 , further comprising:extrapolating, from raw measurement signals obtained at the first time and raw measurement signals obtained at the second time, to generate an extrapolated raw measurement signal that represents properties of the multiple nested conductive pipes at a third time subsequent to the second time; andconverting the extrapolated raw measurement ...

Method For Bacterial Detection Using Film Formation Promotion With Enhanced Corrosion Imbalance

A system and method adapted to have high sensitivity to the formation of biofilm by mixed community bacteria in fluids. The system enhances corrosion imbalance by differentiating conditions between metal sensor elements immersed in the liquid being monitored. The liquid may be diverted to and flowed through a sample chamber where adjacent sensor elements may reside in different flow velocity or temperature regions. The differentiated conditions allow for different film formation on one of the sensor elements relative to the other, and also more quickly than in the main system from which the sampled liquid has been diverted. The differentiated formation allows the use of measurement of polarization current between the metal sensors to produce data with superior resolution relative to prior methods. The speed of film formation promoted by the differentiated conditions allows for determination of risk of film formation in the main system prior to that film's formation in the main system. 1. A method for the detection of live film forming microbes in liquid by stimulating differential growth , said method comprising the steps of:routing a liquid through an inlet of a sample flow chamber;flowing a liquid through said sample flow chamber, said sample flow chamber comprising a first test probe and a second test probe, said liquid flowing first past said first test probe and then past said second probe;placing a voltage differential of a first magnitude and a first polarity across said first test probe and said second test probe as a first voltage state;measuring the current flow between said first test probe and said second test probe in said first voltage state;placing a voltage differential of a first magnitude and a reversed polarity of said first polarity across said first test probe and said second test probe as a second voltage state; andmeasuring the current flow between said first test probe and said second test probe in said second voltage state.2. The method of ...

SYSTEM FOR MONITORING AND CONTROLLING EQUIPMENT LIFE DUE TO CORROSION DEGRADATION

A corrosion maintenance scheduling and implementation system and method measure one or more characteristics of corrosion in equipment before and after implementation of a corrosion remediation action, determine one or more of a change in the one or more characteristics of the corrosion between before and after implementation of the corrosion remediation action, one or more historical operational characteristics of the equipment, or one or more forthcoming operational characteristics of the equipment, and modify a schedule of the corrosion remediation action for the equipment based on one or more of the one or more characteristics of corrosion that are measured, the change in the one or more characteristics of the corrosion, the one or more historical operational characteristics of the equipment, and/or the one or more forthcoming operational characteristics of the equipment. 1. A method comprising:measuring one or more characteristics of corrosion in equipment before and after implementation of a corrosion remediation action;determining one or more of a change in the one or more characteristics of the corrosion between before and after implementation of the corrosion remediation action, one or more historical operational characteristics of the equipment, or one or more forthcoming operational characteristics of the equipment; and the one or more characteristics of corrosion that are measured,', 'the change in the one or more characteristics of the corrosion,', 'the one or more historical operational characteristics of the equipment, or', 'the one or more forthcoming operational characteristics of the equipment., 'modifying a schedule of the corrosion remediation action for the equipment based on one or more of2. The method of claim 1 , further comprising implementing the corrosion remediation action on the equipment.3. The method of claim 1 , wherein the one or more characteristics of the corrosion in the equipment include one or more multi-dimensional ...

METHOD FOR ESTIMATING THE VAPOR PHASE CORROSION LOAD

Method for estimating vapor phase corrosion load in a paper or board manufacturing system, method for controlling vapor phase corrosion load in a paper or board manufacturing system and an arrangement usable is those method. Said methods allow easy on-line follow up of the corrosion load and also adjusting biocide dosage. 2. The method of claim 1 , wherein the corrosion load is estimated in relation to the corrosion load determined earlier in a similar manner in said location.3. The method of claim 1 , wherein a predefined time period for cumulative Δ rH value is at least 24 hours claim 1 , or wherein the predefined time period for cumulative Δ rH value is at least 48 hours claim 1 , or wherein the predefined time period for cumulative Δ rH value is at least 7 days claim 1 , or wherein the predefined time period for cumulative Δ rH value is at least 30 days.4. The method of claim 1 , wherein the at least one time point per 24 hours is determined or wherein at least one time point per 1 hour is determined claim 1 , wherein at least one time point per 10 minutes is determined or wherein at least one time point per 1 minute is determined or wherein at least one time point per 1 second is determined.5. A method for controlling vapor phase corrosion load in a paper or board manufacturing system comprising:i. determining in a defined location of an aqueous process flow a threshold rH value;ii. determining rH values of said aqueous process flow in said defined location over a defined time period in defined time points;iii. calculating Δ rH in each time point as a difference between a determined rH value and the threshold rH value obtained in step i, wherein the calculated value Δ rH is at least zero; and 'or alternatively', 'iv. calculating Σ Δ rH as a cumulative sum of Δ rH values obtained in step iii,'}v. calculating cumulative sum of each determined rH value obtained in step ii, wherein the determined rH value is at least same or higher than the threshold rH value; and ...

METHOD AND APPARATUS FOR MEASURING CORROSION OF MOBILE BODY

A mobile body corrosion measuring apparatus having a corrosion sensor installed in at least one portion of a mobile body, the corrosion sensor measuring a corrosion state at the portion and outputting corrosion data; a vehicle (mobile body) running speed sensor installed in the mobile body, the running speed sensor measuring a running speed of the mobile body and outputting the running speed data; and a data collection unit that acquires the corrosion data from the corrosion sensor and the running speed data from the vehicle speed sensor at the same time and collects the corrosion data and the running speed data with the corrosion data and the running speed data associated with each other. Due to above structure, a corrosion state specific to the mobile body can be accurately measured. 1. A method of measuring corrosion of a mobile body having an engine , the method comprising the steps of:measuring a corrosion state in at least one portion of the mobile body and outputting corrosion data by a corrosion sensor installed in the portion;measuring a running speed of the mobile body and outputting running speed data by a running speed sensor installed in the mobile body; andacquiring the corrosion data and the running speed data at a same timing and collecting the corrosion data and the running speed data with the corrosion data and the running speed data associated with each other.24.-. (canceled)5. An apparatus for measuring corrosion of a mobile body having an engine , the apparatus comprising:a galvanic type corrosion sensor that is installed in at least one portion of a mobile body, the corrosion sensor measuring a corrosion state at the portion, and outputting galvanic current;a running speed sensor that is installed in the mobile body, the running speed sensor measuring a running speed of the mobile body, and outputting running speed data; anda data collection unit that acquires the galvanic current from the galvanic type corrosion sensor and the running speed ...

SYSTEM AND METHOD FOR SERVICE LIFE MANAGEMENT BASED ON CONDENSATION REMOVAL

A method for environmentally managing a computing device of an information handling system includes monitoring an environmental corrosion risk associated with a component of the computing device, a corrosion management component that reduces a rate of corrosion of the component due to an ambient environment in which the component resides by removing condensation from the component is associated with the component; making a determination that the component is associated with the corrosion management component; in response to the determination: estimating a corrosion risk of the component based on: the environmental corrosion risk, and a risk reduction factor associated with the corrosion management component; making a second determination that the corrosion risk of the component indicates a premature failure of the component; and remediating, in response to the second determination, the corrosion risk of the component. 1. A computing device of an information handling system , comprising:a component that is sensitive to corrosion; anda corrosion management component, directly disposed on a surface of the component, adapted to evaporate condensation associated with the component.2. The computing device of claim 1 , wherein the corrosion management component comprises:a portion that transfers condensation from the surface of the component to an evaporative surface of the corrosion management component that evaporates the condensation.3. The computing device of claim 2 , wherein the portion comprises a plurality of capillaries through a support material.4. The computing device of claim 3 , wherein the capillaries are adapted to transfer the condensation through capillary action.5. The computing device of claim 1 , wherein the corrosion management component comprises an open cell foam.6. The computing device of claim 5 , wherein the open cell foam is a metal foam.7. The computing device of claim 5 , wherein a structure of the open cell foam is adapted to absorb condensed ...

Statistical methods for assessing downhole casing integrity and predicting casing leaks

The present disclosure describes methods and systems, including computer-implemented methods, computer program products, and computer systems, for predicting casing leaks. One computer-implemented method includes obtaining raw electromagnetic (EM) corrosion data for a hotspot, wherein the raw EM corrosion data includes a metal thickness loss value for the hotspot; determining a corrosion parameter based on the raw EM corrosion data; generating a probability distribution curve for the corrosion parameter; generating a corrosion severity classification matrix based on the probability distribution curve, wherein the corrosion severity classification matrix includes a plurality of corrosion severity classes and cutoff values for each of the plurality of corrosion severity classes; and assigning the hotspot into one of the plurality of corrosion severity classes based on the corrosion severity classification matrix and the corrosion parameter of the hotspot.

Method And Apparatus for Detection of Pitting Corrosion Under Iron Sulfide Deposition

A method for monitoring pitting corrosion of a production tubing in a hydrocarbon well under downhole conditions during a production process using a coupon segment, the method comprising the steps of placing the coupon segment in the hydrocarbon well at a placement depth, the coupon segment is exposed to produced fluids and comprises an outer layer, an inner layer, and a hollow middle layer comprises a tracer fluid operable to leak into the produced fluids when pitting corrosion penetrates the outer layer, operating the production process in the hydrocarbon well such that produced fluids flow through the production tubing to a surface of the hydrocarbon well and wherein the produced fluids contact the coupon segment such that pitting corrosion occurs on the coupon segment; obtaining a sample of the produced fluids at the surface of the hydrocarbon well; and measuring an amount of the tracer fluid in the sample. 1. A method for monitoring pitting corrosion of a production tubing in a hydrocarbon well under downhole conditions during a production process using a coupon segment , the method comprising the steps of: an outer layer, wherein the outer layer comprises the same metallurgy as the production tubing, wherein the outer layer comprises a known thickness,', 'an inner layer, and', 'a hollow middle layer, wherein the hollow middle layer comprises a tracer fluid, wherein the tracer fluid is operable to leak from the hollow middle layer into the produced fluids when pitting corrosion penetrates the outer layer;, 'placing the coupon segment in the hydrocarbon well at a placement depth, wherein the coupon segment is exposed to produced fluids, wherein the coupon segment comprisesoperating the production process in the hydrocarbon well such that produced fluids flow through the production tubing to a surface of the hydrocarbon well, and wherein the produced fluids contact the coupon segment such that pitting corrosion occurs on the coupon segment;obtaining a sample of ...

Methods and Systems for Wellbore Integrity Management

Methods and systems for evaluating integrity of a tubular located within a wellbore are provided. The method includes measuring an operation parameter of the wellbore, measuring a feature of the tubular two or more times to produce an integrity log each time the feature is measured, and determining a tubular integrity analysis for the tubular by using the integrity logs and the operation parameter. The tubular integrity analysis contains parameter limitations for the tubular. The method also includes determining if tubular integrity is within or outside the parameter limitations. If the tubular integrity is within the parameter limitations, then determine a duration of integrity for the tubular. If the tubular integrity is outside of the parameter limitations, then determine a location on the tubular for loss of tubular integrity. 1. A method for evaluating integrity of a tubular located within a wellbore , comprising:measuring an operation parameter of the wellbore;measuring a feature of the tubular two or more times to produce an integrity log each time the feature is measured;determining a tubular integrity analysis for the tubular by using the integrity logs and the operation parameter, the tubular integrity analysis comprising parameter limitations for the tubular; anddetermining if tubular integrity is within or outside the parameter limitations; andwherein if the tubular integrity is within the parameter limitations, then determining a duration of integrity for the tubular, or if the tubular integrity is outside of the parameter limitations, then determining a location on the tubular for loss of tubular integrity.2. The method of claim 1 , wherein determining the tubular integrity analysis comprises calculating a rate of change of the feature of the tubular.3. The method of claim 2 , wherein the feature of the tubular comprises at least one of corrosion on the tubular claim 2 , roughness on the tubular claim 2 , pits on the tubular claim 2 , deformation of ...

Quick Release Coupon Holder System

A quick release corrosion coupon holder system comprising a shaft and a clip configured to pivot between open and closed positions to securely hold an end of a corrosion coupon. Preferably, no nuts, bolts, or removable parts are required to install or remove a coupon from the holder. Preferably a spring is disposed between the shaft and clip with one or more attached legs or a separate pin configured to secure the clip to the shaft and act as a fulcrum. An optional inwardly extending projection may be inserted through an aperture on the coupon. An optional spacer creates a gap between the shaft and clip to accommodate the thickness of a coupon. Preferably a lip and shoulder pair on the clip and an opposing lip and shoulder pair on the shaft contact front and back surfaces of the coupon, limiting contact surface area between the holder and coupon. 1. A holder for a corrosion coupon , the holder comprising:a shaft; anda clip configured to pivot between an open position and a closed position relative to the shaft;wherein the holder is configured to securely hold a first end of the corrosion coupon when the clip is in the closed position.2. The holder of further comprising:a pin inserted through a portion of the shaft and a portion of the clip to secure the clip to the shaft; anda spring disposed between the shaft and the clip, wherein the spring is in an extended position when the clip is in the closed position and the spring is in a compressed position when the clip is in the open position.3. The holder of wherein a forward portion of the shaft comprises a recessed area configured to receive the clip.4. The holder of wherein a rearward portion of the shaft has a height that is substantially the same as the combined height of the recessed area of the forward portion of the shaft and the clip when in the closed position and an optional gap between the forward portions of the shaft and the clip when in a closed position.5. The holder of further comprising a spacer ...

Microwave Horn Antennas-Based Transducer System for CUI Inspection Without Removing the Insulation

The present disclosure is directed to methods and systems for inspecting insulated equipment for any corrosion under insulation (CUI). The system includes a device comprising transmitter and receiver horn antennas, a vector network analyzer operatively connected to the antennas, and an infrared detector. In the method, a location for inspection of the equipment is identified. A metal jacket surrounding the location is removed without stripping the insulation. Microwaves are transmitted by the transmitted horn antenna at the location, and provide heating at the location. The microwaves are received by the receiver horn antenna after reflection off the equipment. The vector network analyzer analyzes the microwaves. The infrared detector detects infrared waves emitted from the location and develops an infrared image of the inner surface of the equipment. Based on the analysis of the microwaves and the developed image, a programmed processor determines whether CUI exists at the location. 124-. (canceled)25. A method for inspecting insulated equipment for corrosion under insulation using a portable , dual detection device comprising an infrared detector , a transmitter horn antenna , and a receiver horn antenna , the two horn antennas being operatively connected to a vector network analyzer , a controller having a memory storing instructions in the form of code , and a processor configured by executing the instructions therein , the method comprising:transmitting, with the transmitter horn antenna, microwaves towards the insulated equipment at a location suspected of corrosion under insulation;receiving, with the receiver horn antenna, the transmitted microwaves after reflection of the microwaves off the insulated equipment;analyzing, with the vector network analyzer, the transmitted and reflected microwaves, wherein the step of analyzing comprises determining a length of a signal path of the microwave from the transmitter horn antenna to the receiver horn antenna and ...

METHOD AND SYSTEM FOR CORROSION SIMULATION AND ASSESSMENT

A system, an apparatus and a method for simulating and assessing a damaged corrosion film in a pipe segment for pitting corrosion potential under field conditions, including variations in cathode to anode ratios. The apparatus has an anode case that holds a working electrode, a first body portion attachable to one end of the pipe segment, and a second body portion attachable to another end of the pipe segment, the first and second body portions defining a corrosion simulation cell. The anode case can be contained within the corrosion simulation cell, and the working electrode can include a test matrix. 1. An apparatus suitable for simulating and assessing a damaged corrosion film in a pipe segment for pitting corrosion potential under field conditions , including variations in cathode to anode ratios , the apparatus comprising:an anode case that holds a working electrode;a first body portion attachable to one end of the pipe segment; anda second body portion attachable to another end of the pipe segment, the first and second body portions defining a corrosion simulation cell,wherein the anode case is contained within the corrosion simulation cell, andwherein the working electrode includes a test matrix.2. The apparatus in claim 1 , further comprising a reference electrode.3. The apparatus in claim 1 , wherein the test matrix comprises an anode coupon.4. The apparatus in claim 3 , wherein the anode coupon comprises a head portion and a stem portion.5. The apparatus in claim 1 , wherein the pipe segment includes an inner exposure-control surface area and a cathode surface area.6. The apparatus in claim 1 , further comprising a fastener member configured to secure the pipe segment between the first body portion and second body portion.7. The apparatus in claim 1 , wherein the anode case comprises a case cover and a case base.8. The apparatus in claim 7 , further comprising a case cover driver attached to the case cover and adapted to move the case cover with respect to ...

METAL LOSS DETERMINATIONS BASED ON THERMOGRAPHY MACHINE LEARNING APPROACH FOR INSULATED STRUCTURES

A method for identifying metal wall loss in an insulated metal structure is provided. The method includes receiving thermograms of the outer surface of the structure using an infrared camera, applying filters to the thermograms using a first machine learning (ML) system, determining wall loss classifications based on outputs from the filters, validating the wall loss classifications by inspecting the structure, and training the first ML system using the validation results. Outputs of the first ML system and additional structural and environmental data are input to a second ML system that incorporates information from earlier states into current states. The second ML system is trained to estimate wall loss according to changes in the outputs of the first ML system and the additional data over time until a wall loss classification accuracy is reached. The metal wall loss is thereafter estimated using the first and second ML systems in coordination. 1. A method for inspection of a first insulated structure , the method comprising:acquiring, by an infrared camera, first thermograms of a first outer surface of the first insulated structure;determining, by a prediction circuit, a first wall thickness loss of a first defect in a first metal wall of the first insulated structure using the first thermograms, the first metal wall being underneath a first insulation layer of the first insulated structure, the first insulation layer coinciding with or being underneath the first outer surface; andoutputting, by the prediction circuit, the first wall thickness loss, whereinthe prediction circuit is built from training data using a machine learning process, andthe training data comprises second thermograms of a second outer surface of a second insulated structure having at least three distinct known second wall thickness losses of a corresponding at least three second defects in a second metal wall of the second insulated structure, the second metal being underneath a second ...

Electrical methods and systems for concrete testing

Hundreds of thousands of concrete bridges and hundreds of billions of tons of concrete require characterization with time for corrosion. Accordingly, protocols for rapid testing and improved field characterization systems that automatically triangulate electrical resistivity and half-cell corrosion potential measurements would be beneficial allowing discrete/periodic mapping of a structure to be performed as well as addressing testing for asphalt covered concrete. Further, it is the low frequency impedance of rebar in concrete that correlates to corrosion state but these are normally time consuming vulnerable to noise. Hence, it would be beneficial to provide a means of making low frequency electrical resistivity measurements rapidly. Further, prior art techniques for electrical rebar measurements require electrical connection be made to the rebar which increases measurement complexity/disruption/repair/cost even when no corrosion is identified. Beneficially a method of determining the state of a rebar without electrical contact is taught.

METHOD FOR DETECTING COMPROMISED ZONE IN CLEANROOM

Method for detecting compromised zone in cleanroom, including the following steps: (1) cleanroom including air supply space, ceiling, clean space, elevated floor, and return air space that are arranged sequentially from top down, wherein ceiling is divided into plurality of air supply zones, elevated floor is divided into plurality of exhaust zones, air supply zones and exhaust zones are arranged vertically in one-to-one corresponding manner with cylindrical space formed between corresponding two, cleanroom further includes detection mechanisms corresponding, one-to-one, to cylindrical spaces, and detection mechanism includes corrosion test specimen and detection unit; and (2) monitoring electrical parameters of corrosion test specimen of each detection mechanisms, and determining, if electrical parameters of corrosion test specimen of one detection mechanism change continuously in trend, that cylindrical space corresponding to this detection mechanism is compromised zone. 1. A method for detecting a compromised zone in a cleanroom , comprising the following steps:(1) providing a cleanroom including an air supply space, a ceiling, a clean space, an elevated floor, and a return air space that are arranged sequentially from top down, wherein the ceiling is divided into a plurality of air supply zones, the elevated floor is divided into a plurality of exhaust zones, the air supply zones and the exhaust zones are arranged vertically in a one-to-one corresponding manner with a cylindrical space formed between the corresponding two, the cleanroom further comprises detection mechanisms corresponding, one-to-one, to the cylindrical spaces, and the detection mechanism comprises a corrosion test specimen in contact with a corrosive gas flowing through the corresponding cylindrical space and a detection unit for detecting electrical parameters of the corrosion test specimen; and(2) monitoring electrical parameters of the corrosion test specimen of each of the detection ...

In-Line Composition and Volumetric Analysis of Vent Gases and Flooding of the Annular Space of Flexible Pipe

A method and system for monitoring a flexible pipe, including an inline sensor system coupled to the annulus of the flexible pipe to detect corrosion of the flexible pipe. Also disclosed are method and system for monitoring an amount of water being accumulated in an annulus of a flexible pipe, including locating a pressure measurement system proximate to the annulus for measuring pressure of gas inside the annulus; controlling a flow of vent gas with a vent gas valve; positioning a flow measurement system upstream or downstream of the vent gas valve for measuring the flow of the vent gas when the vent gas valve is opened; and collecting with a microprocessor pressure and flow measurement data from the pressure and the flow measurement systems for determining the amount of water accumulated in the annulus based on the collected pressure and flow measurement data. 1. A system for monitoring an amount of water being accumulated in an annulus of a flexible pipe , the system comprising:a pressure measurement system located proximate to the annulus of the flexible pipe for measuring pressure of gas inside the annulus;a vent gas valve for controlling a flow of vent gas;a flow measurement system positioned upstream or downstream of the vent gas valve for measuring the flow of the vent gas when the vent gas valve is opened; anda microprocessor for collecting pressure and flow measurement data from the pressure measurement system and the flow measurement system and for determining the amount of water accumulated in the annulus based on the collected pressure and flow measurement data.2. The system of claim 1 , wherein claim 1 , when the vent gas valve is closed claim 1 , pressure of the vent gas of the annulus increases over time as the vent gas and/or water accumulates in the annulus.3. The system of claim 1 , wherein the pressure measurement system monitors the pressure of the vent gas and when the pressure reaches a predetermined value the vent gas valve is opened and the ...

CORROSION MONITOR

A corrosion detection system and a method for operating a corrosion detection system are provided. The system, may include, but is not limited to, a PCB, a corrosion sensor, a first, second, third and fourth standoff coupled between the PCB and a chassis, a constant current circuit coupled to the first standoff, a first trace coupled between the third standoff and a first input of the corrosion sensor, and a second trace coupled between the fourth standoff and a second input of the corrosion sensor, wherein the corrosion sensor is configured to output a signal proportional to the resistance of the chassis based upon a voltage induced at the first input and the second input, and a processor configured to receive the signal proportional to the resistance of the chassis and determine a corrosion level of the chassis by comparing the signal to reference data stored in memory. 1. A corrosion detection system for detecting corrosion on a chassis of a device , comprising:a memory configured to store reference data; a printed circuit board;', 'a corrosion sensor coupled to the printed circuit board, the corrosion sensor comprising a first input and a second input, the corrosion sensor configured to output a signal proportional to a resistance of the chassis of the device;', 'a first standoff coupled between the printed circuit board and the chassis of the device;', 'a second standoff coupled between the printed circuit board and the chassis of the device;', 'a third standoff coupled between the printed circuit board and the chassis of the device;', 'a fourth standoff coupled between the printed circuit board and the chassis of the device;', 'a constant current circuit coupled to the first standoff and configured to output a constant current;', 'a first trace coupled between the third standoff and the first input of the corrosion sensor; and', 'a second trace coupled between the fourth standoff and the second input of the corrosion sensor,', 'wherein the corrosion sensor is ...

CORROSION TESTER TOOL FOR USE DURING DRILL STEM TEST

In accordance with embodiments of the present disclosure, systems and methods for gathering corrosion data during a drill stem test (DST) performed in a wellbore extending through a subterranean formation are provided. Such systems include a specialized tool that may be run into the wellbore on a DST tubular string to perform corrosion measurements during the DST. This corrosion tester tool (CTT) may include a number of material coupons disposed therein for exposure to formation fluids routed through the CTT and the DST tubular string. The CTT may hold material coupons of several different materials that could potentially be used to form production tubing or other production equipment needed for well completion operations. After the different material coupons are exposed to the formation fluid via the CTT, the material coupons may be inspected to determine which material should be used to form the production tubing/equipment for that particular well. 1. A corrosion tester tool for use on a drill stem test (DST) string , the corrosion tester tool comprising:an external tool housing;a material coupon disposed inside the external tool housing;a mounting feature for mounting the material coupon inside the external tool housing to expose the material coupon to formation fluid routed through the corrosion tester tool and the DST string; andan electrical insulation material disposed inside the external tool housing proximate the material coupon to prevent galvanic corrosion of the material coupon.2. The corrosion tester tool of claim 1 , wherein the mounting feature comprises the electrical insulation material.3. The corrosion tester tool of claim 1 , wherein the mounting feature is disposed along an inner diameter of the external tool housing to expose the material coupon to a dynamic flow of formation fluid routed through a central flow passage of the corrosion tester tool.4. The corrosion tester tool of claim 3 , wherein the mounting feature comprises grooves formed on ...

CORROSION TESTING SYSTEM FOR MULTIPHASE ENVIRONMENTS USING ELECTROCHEMICAL AND WEIGHT-LOSS METHODS

A system for conducting measuring corrosion rates in a multiphase environment using electrochemical and weight-loss measurement methods on test coupons is provided. A plurality of inserts is disposed within a test vessel in a vertical arrangement. Each insert is provided with at least one test coupon and at least one working electrode that are exposed to the corrosive test environment within vessel. A test fluid mixture is added to the vessel and the temperature and pressure is maintained such that the mixture exists in a multiphase condition that has a vertical stratification such that each insert is exposed to a different phase of the fluid. Electrical signals from the working electrode is measured to determine the corrosion rate using an electrochemical method. The pre-test weight of the coupon is compared to the post-test weight to determine the corrosion rate using a weight-loss method. 1. A multi-phase testing system for testing corrosive environments by providing a test fluid mixture that is at a different phase at different locations within the system in surrounding relation to a plurality of test coupons , wherein corrosion rates can be determined via weight-loss means and electrochemical means on the plurality of test coupons , comprising:a housing defining an inner chamber;a plurality of inserts disposed vertically within the housing, each insert defining an interior area and an interior surface, wherein at least one test coupon among the plurality of test coupons is disposed at an inner surface of each of the plurality of inserts;a plurality of electrical probes, wherein at least one electrical probe is disposed at an inner surface of each of the plurality of inserts, and each electrical probe having an electrical lead wire electrically connected to the electrical probe and extending outside the housing for reading electrical signals through the wire; anda plurality of separator plates, wherein one of the plurality of separator plates is disposed between ...

CORROSION SENSORS

Corrosion sensor apparatus for detection of contamination affecting metal based components and devices. For example, an apparatus includes: a set of corrosion sensor elements, wherein a width of a first corrosion sensor element is different than a width of a second corrosion sensor element, wherein each corrosion sensor element is susceptible to corrosion caused by an operating environment of the corrosion sensor elements; and a set of reference elements wherein a width of a first reference sensor element is substantially equal to the width of the first corrosion sensor element and a width of a second reference sensor element is substantially equal to the width of the second corrosion sensor element, wherein each reference sensor element is not substantially susceptible to corrosion caused by the operating environment of the corrosion sensor elements. 1. An apparatus , comprising:a first corrosion sensor;a second corrosion sensor; andat least a third corrosion sensor;wherein the first, second, and third corrosion sensors are configured in a bridge arrangement such that when none of the first, second, and third corrosion sensors experiences corrosion, the bridge arrangement is in a balanced condition, and when at least one of the first, second, and third corrosion sensors experiences corrosion, the bridge arrangement is in an unbalanced condition.2. The apparatus of claim 1 , wherein each of the first claim 1 , second and third corrosion sensors comprises a first pair of thin film sensor elements that are exposed to corrosion and a second pair of thin film sensor elements that are not exposed to corrosion such that the amount of unbalance is directly related to corrosion of a width of the exposed sensor elements and a corrosion rate associated with the exposed sensor elements.3. The apparatus of claim 2 , wherein widths of the thin film sensor elements for each of the first claim 2 , second and third corrosion sensors progressively increase claim 2 , and wherein the ...

Apparatus for Tank Bottom Soil Side Corrosion Monitoring

A metal plate corrosion sensing apparatus includes a conduit, and an electrical resistance probe mounted within the conduit, the electrical resistance probe configured to receive an electrical signal indicating a thickness of the metal plate, wherein the conduit comprises a plurality of slots configured to simulate an air/soil interface by permitting fluid access to the electrical resistance probe within the conduit through the slots. 1. A metal plate corrosion sensing apparatus comprising:a conduit; andan electrical resistance probe mounted within the conduit, the electrical resistance probe configured to receive an electrical signal indicating a thickness of the metal plate, wherein the conduit comprises a plurality of slots configured to simulate an air/soil interface by permitting fluid access to the electrical resistance probe within the conduit through the slots.2. The corrosion sensing apparatus of claim 1 , wherein the conduit is a nonmetallic claim 1 , non-corrosive material.3. The corrosion sensing apparatus of claim 2 , wherein the material is a polyvinyl chloride pipe.4. The corrosion sensing apparatus of claim 1 , wherein the plurality of slots are formed on a slotted portion at a first end of the conduit that surrounds and encloses a metal portion of the electrical resistance probe.5. The corrosion sensing apparatus of claim 4 , further comprising a probe cover attachable to an end of the conduit distant from the slotted portion of the conduit.6. The corrosion sensing apparatus of claim 4 , wherein the conduit is 1¼ inches in diameter and the slotted portion of the conduit is approximately one third of a total length of the conduit.7. The corrosion sensing apparatus of claim 1 , wherein the slots are 5-10 cm wide and set at intervals of 1-2 cm from each other.8. The corrosion sensing apparatus of claim 1 , further comprising connectors that connect the probe to a central processing unit that receives the signal indicating a thickness of the metal plate ...

MONITORING A CLOSED WATER SYSTEM

The present invention relates to a system and method for continuous monitoring of system health in closed water systems. Sensors are provided to measure a plurality of system parameters. The measurements are compared to threshold ranges. A diagnosis of system health, specifically in relation to corrosion, is derived from the comparison of at least a first parameter to its threshold range. The diagnosis is further refined by comparison of a further parameter to its threshold range. Also disclosed are example sensors and methods, including galvanic sensors, optical corrosion sensors and methods for monitoring the effectiveness of inhibitors in the water system using conductivity measurements. 1105-. (canceled)106. An optical sensing apparatus for mounting in a water system and for monitoring corrosion in the water system , comprising:a metal sample having a uniform thickness and a first planar surface and a second planar surface opposite the first planar surface, wherein the first planar surface is arranged to be in contact with water within the water system;a light source configured to emit light towards the second planar surface of the metal sample; anda light sensor configured to receive light reflected by the second planar surface of the metal sample, and output a signal indicative of the intensity of the reflected light.107. An optical sensing apparatus according to claim 106 , further comprising a transparent element disposed at least partly between the light source and the metal sample.108. An optical sensing apparatus according to claim 107 , wherein the transparent element has a third planar surface arranged adjacent to the second planar surface of the metal sample.109. An optical sensing apparatus according to claim 106 , further comprising a seal for protecting the second planar surface from water in the water system.110. An optical sensing apparatus according to claim 109 , wherein the seal is located adjacent to the first planar surface and wherein the ...

Mobile Automated Non-Destructive Inspection System

A mobile automated pipe or shaft non-destructive inspection system with rotational inspection sensor assembly for 360 degree imaging or sensing and generation of three dimensional models or sensing imaging or depictions of the pipe or shaft, preservative removal/application system, mobile platform mounting, and control system as well as related methods. 1. A mobile automated pipe or shaft non-destructive inspection system comprising:an operation and control station including a power system;a nitrogen source;an umbilical cable comprising a plurality of control, data, nitrogen conduit, and power lines coupled with the operation and control station and nitrogen source;a remotely controlled mobile non-destructive inspection platform connected to the umbilical cablecomprising a control system that communicates with systems on the platform and the operation and control station through the umbilical cable, a drive system, a position determination system, a navigation system, a plurality of sensors, a rotational sensor arm mounting at least some of the plurality of sensors, and a coating removal or application system that removes or applies at least one coating to a surface;wherein the drive system comprises a plurality of adjustable drive components and suspension systems that adjustably and laterally positions the platform within an enclosing structure;wherein the plurality of sensors comprises a rotational inspection sensor assembly for 360 degree imaging or sensing and generation of three dimensional models or sensing imaging or depictions of enclosing structure walls.2. An inspection system comprising:a remotely controlled mobile non-destructive inspection platform comprising a control system, a drive system, a position determination system, a navigation system, a plurality of sensors, a rotational sensor arm mounting at least some of the plurality of sensors, and a coating removal or application system that removes or applies at least one coating to a surface;wherein ...

DETECTION OF CORROSION USING DISPERSED EMBEDDED SENSORS

A corrosion sensor system includes one or more corrosion sensors embedded in a coating material such as an anti-corrosion coating material. Each corrosion sensor may include a resonator disposed on a dielectric substrate, and has a resonant frequency in a radio frequency (RF) range or an infrared (IR) range, and is configured for interacting with an RF or IR excitation signal to produce an RF or IR measurement signal. The corrosion sensor system may be applied to an object for which corrosion is to be monitored. A corrosion detection system includes a data acquisition system that transmits the excitation signal to the corrosion sensor, and receives the measurement signal from the corrosion sensor for analysis to determine whether corrosion has occurred. 1. A corrosion sensor system , comprising:a coating material; anda corrosion sensor embedded in the coating material, the corrosion sensor comprising a dielectric substrate and a resonator disposed on the dielectric substrate, wherein:the coating material, the dielectric substrate, and the resonator define a resonant frequency of the corrosion sensor in a radio frequency (RF) range or an infrared (IR) range; andthe resonator is configured for interacting with an RF or IR excitation signal to produce an RF or IR measurement signal.2. The corrosion sensor system of claim 1 , wherein the dielectric substrate and the resonator have a configuration selected from the group consisting of:the dielectric substrate and the resonator are arranged as a planar RF or IR transmission line;the dielectric substrate and the resonator are arranged as an RLC circuit; andboth of the foregoing.3. The corrosion sensor system of claim 1 , comprising an electrical ground plane on a side of the dielectric substrate opposite to the resonator.4. The corrosion sensor system of claim 1 , wherein the resonator comprises a feature selected from the group consisting of:an RF antenna;two or more electrically conductive sections separated by a gap and ...

INTEGRATED METHOD OF DETERMINING AND REPAIRING DAMAGE IN A WELL CASING

An integrated and rigless method of determining the location and the type of damage in casing or tubing of a wellbore that involves recording a thickness profile of the casing or tubing, a temperature log, and a noise log along the depth of the wellbore, followed by locating the damage from the thickness profile, and determining the type of damage from the temperature log and the noise log. 1. An integrated method of determining and repairing damage in a casing of a well , comprising:logging thickness of the casing along the depth of the well to obtain a thickness profile using a thickness measurement device selected from the group consisting of an ultrasonic caliper and an electromagnetic caliper;logging temperature along the depth of the well to obtain a temperature log;logging sound frequency along the depth of the well to obtain a noise log;determining a location of the damage by identifying a depth in the thickness profile where the thickness is less than a predetermined thickness threshold;determining the type of the damage by comparing the temperature log to a geothermal temperature log, and the sound frequency at the damage with a frequency threshold; andinjecting a polymer gel to the vicinity of the damage to repair the damage,wherein the damage is determined to be a leak, when the temperature of the temperature log is constant or decreases relative to the geothermal temperature log with increasing depth along the vicinity of the damage, andwherein the damage is determined to be corrosion, when the temperature of the temperature log increases relative to the geothermal temperature log with increasing depth along the vicinity of the damage.2. (canceled)3. The integrated method of claim 1 , wherein the damage is determined to be a leak claim 1 , when the temperature of the temperature log fluctuates with increasing depth along the vicinity of the damage claim 1 , and the sound frequency is greater than or equal to the frequency threshold in the vicinity of ...

CATHODIC PROTECTION MEASUREMENT SYSTEM AND METHOD

A system for measuring the voltage potential across test coupons, reference cells and metal structures is disclosed. The system may evaluate the amount of cathodic protection that may be applied to the metal structure. A series resistor may be configured between at least one of the test coupons and the metal structure so that the at least one test coupon may be at a lower voltage potential than the metal structure. 1. A system for measuring cathodic protection potential of a structure , the system comprising:a connection assembly;a first test coupon electrically configured with the connection assembly and in close proximity to the structure;at least one reference cell electrically configured with the connection assembly and in close proximity to the structure;a line providing an electrical connection between the structure and the connection assembly; anda first resistor configured with the connection assembly and placeable in series between the first test coupon and the structure;wherein the first resistor is placed in series between the first test coupon and the structure and a voltage potential is measured between the first test coupon and the at least one reference cell.2. The system of wherein the first test coupon is electrically configured at a first terminal on the connection assembly claim 1 , the at least one reference cell is electrically configured at a second terminal on the connection assembly claim 1 , and the structure is electrically configured at a third terminal on the connection assembly.3. The system of wherein the first resistor is configured in series between the first terminal and the third terminal along a first electrical path.4. The system of further comprising a first jumper junction in series between the first terminal and the first resistor along the first electrical path.5. The system of further comprising a first jumper used to close the first jumper junction thereby electrically connecting the first terminal with the first resistor.6. ...

CORROSION MONITORING APPARATUS AND METHODS

A method for passively monitoring corrosive factors in an environment includes locating an apparatus in an environment. The apparatus includes at least one corrosion classification coupon and a temperature and humidity logging device. The apparatus is maintained in the environment for a period of time and then removed from the environment. The at least one corrosion classification coupon and the temperature and humidity logging device are analyzed to determine whether one or more of corrosive gases, temperature changes or humidity changes were present in the environment during the period of time. The temperature and humidity logging device may be an electronic temperature and humidity logging device. The analysis may be performed by an off-site vendor. 1. A method for passively monitoring corrosive factors in an environment , comprising:locating an apparatus in the environment, the apparatus comprising at least one corrosion classification coupon and a temperature and humidity logging device;maintaining the apparatus in the environment for a period of time;removing the apparatus from the environment; andanalyzing the at least one corrosion classification coupon and the temperature and humidity logging device to determine whether one or more of corrosive gases, temperature changes or humidity changes were present in the environment during the period of time.2. The method of claim 1 , wherein the apparatus further comprises an identification label.3. The method of claim 1 , wherein the apparatus comprises at least two corrosion classification coupons claim 1 , at least one of the corrosion classification coupons being a copper corrosion classification coupon and at least another of the corrosion classification coupons being a silver corrosion classification coupon.4. The method of claim 3 , wherein the apparatus further comprises more than two corrosion classification coupons.5. The method of claim 1 , wherein the temperature and humidity logging device is an ...

INTEGRATED ELECTRONIC DEVICE FOR MONITORING HUMIDITY AND/OR ENVIRONMENTAL ACIDITY/BASICITY AND/OR CORROSION

An integrated electronic device for detecting at least one parameter related to humidity and/or presence of water and/or acidity/basicity of an environment surrounding the device is described. Such device comprises a separation layer from the surrounding environment, comprising at least one portion of insulating material , and further comprises a first conductive member and a second conductive member , made of an electrically conductive material, arranged inside the separation layer , with respect to the surrounding environment, and separated from the surrounding environment by the separation layer . The device also comprises a measurement module , having two measurement terminals , electrically connected with the first and the second conductive members, respectively; the measurement module is configured to provide an electric potential difference between the first and the second conductive members. The device further comprises electrode means , configured to act as an electrode, arranged outside of the separation layer , with respect to the first and the second conductive members; the electrode means are arranged so as to form, with the first and the second conductive members, an electromagnetic circuit having an electromagnetic circuit overall impedance variable based upon the exposure to environmental conditions with a variable level of humidity and/or acidity/basicity. The measurement module is configured to measure the electromagnetic circuit overall impedance, which is present between the measurement terminals , and to determine the at least one parameter to be detected, based on the overall impedance measured. 124-. (canceled)25. An integrated electronic device for detecting at least one parameter related to humidity , presence of water , and acidity/basicity of an environment surrounding the device , the device comprising:first and second conductive members;a measurement module comprising first and second measurement terminals respectively coupled to said ...

INSPECTION TOOL

An inspection tool for inspecting oil and/or gas production and/or injection wells and pipes is provided. The tool comprises at least an image sensor, one or more processors or chips and one or more power supplies. The tool further comprises at least a first and a second chamber being insulated from each other. The first chamber comprises the image sensor and is provided with one or more passive cooling means, and the second chamber comprises the one or more processors and is provided with one or more active cooling means. Further, a method for cooling such inspection tool is provided. 1. An inspection tool for inspecting at least one of oil , gas production , and injection wells and pipes , the inspection tool comprising:an image sensor, at least one of at least one processor and at least one chip, and at least one power supply;at least a first and a second chamber being insulated from each other, the first chamber comprising the image sensor and is provided with at least one of at least one passive means and at least one active cooling means; andthe second chamber comprising at least one processor and is provided with at least one active cooling means.2. The inspection tool according to claim 1 , comprising a third chamber insulated from the first chamber and from the second chamber claim 1 , the third chamber including the at least one power supply and is provided with at least one passive cooling means.3. The inspection tool according to claim 2 , wherein the first chamber provides a front section claim 2 , the second chamber provides a middle section and the third chamber provides a rear section of the inspection tool.4. The inspection tool according to claim 3 , wherein the front claim 3 , middle and rear section claim 3 , respectively claim 3 , is arranged to be independently removed from the rest of the inspection tool.5. The inspection tool according to claim 1 , wherein the at least one active cooling means are at least one of a Peltier thermoelectric ...

Casing String Monitoring Using Electromagnetic (EM) Corrosion Detection Tool and Junction Effects Correction

A corrosion monitoring method includes obtaining electromagnetic (EM) log, data along a casing string. The method also includes processing the EM log data to estimate casing thickness of the casing string as a function of position, where the processing includes correcting, for junction effects in the casing string. 1. A corrosion monitoring method that comprises:obtaining electromagnetic (EM) log data along a casing string; andprocessing the EM log data to estimate casing thickness of the casing string as a function of position, wherein said processing comprises correcting for junction effects in the casing string.2. The method of claim 1 , wherein said correcting for junction effects in the casing string comprises employing a multi-dimensional casing string model.3. The method of claim 2 , wherein said correcting for junction effects further comprises applying a multi-stage inversion with multiple stages claim 2 , where a different casing string attribute or set of attributes is inverted for each stage while at least one other casing string attribute is fixed.4. The method of claim 3 , wherein the multi-stage inversion comprises:a first stage that inverts a junction location while a casing thickness is fixed; anda second stage that inverts a casing thickness while junction location is fixed using values determined in the first stage.5. The method of claim 4 , further comprising:selecting EM log data at or near a casing junction for the first stage; andselecting EM log data at or near a middle region of a casing section for the second stage.6. The method of claim 4 , wherein the multi-stage inversion further comprises a third stage that inverts a junction location and a casing thickness using values determined in the first and second stages as initial values.7. The method of claim 4 , wherein the multi-stage inversion further comprises performing multiple iterations of the multi-stage inversion claim 4 , where initial values for attributes to be determined for each ...

METHOD AND APPARATUS FOR MONITORING A CORROSIVE ENVIRONMENT FOR ELECTRICAL EQUIPMENT

According to one aspect, an apparatus includes a first printed circuit board (PCB), the first PCB including a first interface, and a corrosion sensor assembly. The corrosion sensor assembly including a second interface arranged to be coupled to the first interface, the corrosion sensor assembly further including a signal trace field and a plurality of components, wherein the signal trace field and the plurality of components are arranged to provide an indication of whether the apparatus is in an environment that is corrosive. 1. An apparatus comprising:a first printed circuit board (PCB), the first PCB including a first interface; anda corrosion sensor assembly, the corrosion sensor assembly including a second interface arranged to be coupled to the first interface, the corrosion sensor assembly further including a signal trace field and a plurality of components, wherein the signal trace field and the plurality of components are arranged to provide an indication of whether the apparatus is in an environment that is corrosive.2. The apparatus of wherein the trace field includes a plurality of control traces and a plurality of test traces claim 1 , and wherein the plurality of components are arranged to monitor signal integrity of the plurality of control traces and the plurality of test traces to determine when the plurality of test traces exhibit effects of corrosion.3. The apparatus of wherein the plurality of control traces are shielded from the environment and the plurality of test traces are exposed to the environment.4. The apparatus of wherein the corrosion sensor assembly further includes a plurality of openings claim 3 , wherein the plurality of openings are positioned within the trace field to allow air to flow around the trace field.5. The apparatus of wherein the plurality of components includes a first sensor arranged to obtain data relating to the environment claim 3 , and a controller arranged to perform signal performance analysis.6. The apparatus of ...

METHOD OF DETECTING THE LOCALLY GENERATED CORROSION OF A METAL ELEMENT

A method of detecting a locally generated corrosion of a first metal element when exposing the first metal element () to a corrosive environment. A first surface of the first metal element () is exposed to the corrosive environment. A sponge () is sandwiched between the first metal element () and a second metal element (). The sponge () constituting in dry state an electrical insulator and constituting an electrical conductor when wetted in the corrosive environment. An electrical insulator together with the first metal element () encapsulates the second metal element () and the sponge () for preventing the second metal element () and the sponge () from being directly exposed to the corrosive environment. An impedance between the second metal element () and a ground electrode is measured, and a decrease in the impedance from an infinite impedance to a finite impedance caused by a pinhole being generated in the first metal element () is monitored. 1. A method of detecting a locally generated corrosion of a metal element when exposing said metal element to a corrosive environment , comprising:providing said metal element constituting a first element defining opposite first and second surfaces, said first surface defining an exposed outer surface to be exposed to said corrosive environment, said first element comprising a first pair of terminals;providing a first pair of electrical connectors, and contacting each connector of said first pair of electrical connectors with a respective terminal of said first pair of terminals for allowing an injection of an electric current into said first element;providing a sponge, said sponge constituting in a dry state an electrical insulator and constituting an electrical conductor when wetted in said corrosive environment, and applying said sponge to said second surface of said first element;providing a second element of an electrically conductive material, and arranging said second element opposite to said second surface of said ...

CORROSION DETECTION SENSOR EMBEDDED WITHIN A CONCRETE STRUCTURE WITH A DIFFUSION LAYER PLACED OVER THE SACRIFICIAL TRANSDUCER

A corrosion detection sensor embedded within a concrete structure. The sensor includes a hermetically sealed resonant circuit that is a resistor-inductor-capacitor (RLC) circuit. The sensor further includes a sacrificial transducer that is inductively or capacitively coupled to the resonant circuit, where the sacrificial transducer is exposed to an environment outside the sensor to monitor corrosion of steel reinforcement in the concrete structure. Additionally, the sensor includes a protective cementitious housing surrounding the resonant circuit and the sacrificial transducer. The sensor further includes a diffusion layer placed over the sacrificial transducer, where the diffusion layer enables a dispersion of a chemical species over the sacrificial transducer. In this manner, a more uniform distribution of the chemical species over the surface of the sacrificial transducer mitigating the localized corrosion is ensured. Furthermore, such a design is less susceptible to false positives. 1. A corrosion detection sensor embedded within a concrete structure , comprising:a hermetically sealed resonant circuit comprising an inductor, a resistor and a capacitor;a sacrificial transducer that is inductively or capacitively coupled to said resonant circuit, wherein said sacrificial transducer is exposed to an environment outside said sensor to monitor corrosion of steel reinforcement in said concrete structure;a protective cementitious housing surrounding said resonant circuit and said sacrificial transducer; anda diffusion layer placed over said sacrificial transducer, wherein said diffusion layer enables a dispersion of a chemical species over said sacrificial transducer.2. The corrosion detection sensor as recited in claim 1 , wherein said chemical species comprises chloride ions.3. The corrosion detection sensor as recited in claim 1 , wherein said diffusion layer enables dispersion of said chemical species in regions with a higher concentration of said chemical species ...

HIGH-FLUX SENSOR SUITABLE FOR CORROSION BIG DATA MONITORING AND MANUFACTURING METHOD

The present disclosure provides a high-flux sensor suitable for corrosion big data monitoring and a method of manufacturing the same. The sensor includes a first metal sheet, a second metal sheet and an insulating sheet therebetween. The two metal sheets are laminated. The metal sheets and the insulating sheet form a test piece group. A through hole is drilled in the test piece group.

Method for identifying layers providing corrosion protection in crude oil fractions

A method for determining and identifying corrosion protective layers that provide corrosion protection against crude oils and crude oil fractions is disclosed. The method identifies naturally occurring constituents in crude oils that indirectly provide corrosion protection. A method assessing the potential of these constituents is also disclosed. The method includes exposing metal coupons with the crude oil or crude fraction of interest at the expected operating temperature of concern. The corrosion potential assessment further analyzes the exposed coupons with transmission electron microscopy and an additional high temperature exposure that challenges the tenacity of the protection offered by the corrosion protective layer.

SYSTEM AND METHOD FOR MONITORING AND CONTROLLING A FIRE SUPPRESSION SYSTEM

A system to mitigate false trips of a valve that supplies water to a piping system in a fire suppression system includes at least one edge device, a control circuit, and at least one user device. The at least one edge device monitors a parameter corresponding to at least one of a corrosion, a presence of water, a differential pressure across the valve, and a temperature in the piping system of the fire suppression system. The control circuit includes one or more processors and a memory storing instructions that, when executed by the one or more processors, cause the control circuit to receive an indication of the parameter monitored by the at least one edge device, predict whether a valve tripping event is expected to occur based on the received indication, and in response to predicting that the valve tripping event is expected to occur, provide the prediction that the valve tripping event can occur for remedial action. The at least one user device presents display data regarding the prediction. 1. A system , comprising:a monitoring device to monitor a parameter corresponding to at least one of a corrosion, a presence of water, a differential pressure across a valve of a fire suppression system, and a temperature in a pipe of the fire suppression system; receive an indication of the parameter monitored by the device;', 'determine that a valve tripping event is to occur based on the received indication; and', 'in response to the determination that the valve tripping event is to occur, generate an alert indicating that the valve tripping event is to occur; and, 'one or more processors toa user device to present display data regarding the alert.2. The system of claim 1 , comprising:a communication network to exchange information between the monitoring device and the user device.3. The system of claim 1 , comprising:the one or more processors are incorporated into the monitoring device.4. The system of claim 1 , comprising:the one or more processors are disposed ...

DEVICE AND METHOD FOR CORROSION DETECTION AND FORMATION EVALUATION USING INTEGRATED COMPUTATIONAL ELEMENTS

An optical computing device and method for (1) determining and/or monitoring corrosion data in a given environment and (2) evaluating a downhole formation, both being accomplished in real-time by deriving the data from the output of an optical element. 1. A method utilizing an optical computing device to determine corrosion of a sample , the method comprising:deploying an optical computing device into an environment, the optical computing device comprising an optical element and a detector;optically interacting electromagnetic radiation with a sample to produce sample-interacted light;optically interacting the optical element with the sample-interacted light to generate optically-interacted light which corresponds to a characteristic of the sample;generating a signal that corresponds to the optically-interacted light through utilization of the detector; anddetermining a corrosion of the sample using the signal.2. A method as defined in claim 1 , wherein the optical element is an Integrated Computational Element.3. A method as defined in claim 1 , wherein determining the corrosion of the sample further comprises comparing the signal to baseline data of the sample.4. A method as defined in claim 3 , wherein determining the corrosion of the sample further comprises:{'b': '1', 'determining the baseline data of the sample using the optical computing device at a time T; and'}{'b': '2', 'comparing the signal to the baseline data of the sample at a time T.'}5. A method as defined in claim 3 , wherein the baseline data of the sample is generated using empirical data.6. A method as defined in claim 1 , wherein the corrosion of the sample is determined in real-time.7. A method as defined in claim 1 , further comprising utilizing the signal to generate a historical record of a rate of corrosion of the sample over time.8. A method as defined in claim 1 , further comprising utilizing the signal to predict life expectancy of the sample.9. A method as defined in claim 1 , wherein ...

HIGH PRESSURE / HIGH TEMPERATURE DYNAMIC MULTIPHASE CORROSION-EROSION SIMULATOR

A system for measuring corrosion and corrosion-erosion rates in a high temperature, high pressure multiphase dynamic environment includes a plurality of ring-shaped test coupons disposed within a test vessel in a vertical arrangement relative to one another. A test fluid mixture is added to the vessel and the temperature and pressure are maintained such that the mixture exists in a multiphase condition that has a vertical stratification such that each test coupon is exposed to a different phase and/or combination of phases of the fluid. Impellers can be used to stir the fluid to provide a dynamic environment. The fluid can include particulate matter to simulate real world test conditions. Separator plates can be disposed at different vertical locations within the vessel to maintain separation between various phases of the fluids and further restrict particulate matter from migrating between sections of the test system. 1. A high pressure , high temperature dynamic multi-phase testing system for testing corrosive and corrosive-erosive environments by providing a test fluid mixture that is at a different phase at different locations within the system and which is in surrounding relation to a plurality of ring-shaped test coupons , comprising:a casing defining an inner section;a plurality of spacer rings disposed vertically relative to one another and supported by the casing;wherein at least a first, second, and third ring-shaped test coupons among the plurality of ring-shaped test coupons are each disposed between at least two of the plurality of spacer rings, wherein the first, second, and third ring-shaped test coupons are disposed at a respective an upper section, middle section, and lower section of the casing; anda plurality of separator plates, wherein one of the plurality of separator plates is disposed between the upper and middle section of the casing and another of the plurality of the separator plates is disposed between the middle and lower section of the ...

Corrosion Process Simulator

An apparatus may include: a body defining a flow path; an inlet to the flow path; an outlet to the flow path; a test coupon at least partially disposed within the flow path; a sealing element disposed between the test coupon and the body; and a current source electrically coupled to the test coupon, wherein the inlet and the outlet are in fluid communication through the flow path, and wherein the sealing element electrically insulates the body and the test coupon. 1. An apparatus comprising:a body defining a flow path;an inlet to the flow path;an outlet to the flow path;a test coupon at least partially disposed within the flow path;a sealing element disposed between the test coupon and the body; anda current source electrically coupled to the test coupon,wherein the inlet and the outlet are in fluid communication through the flow path, andwherein the sealing element electrically insulates the body and the test coupon.2. The apparatus of wherein the inlet and the outlet further comprise connections operable to couple the inlet and the outlet to an external fluid source.3. The apparatus of wherein the test coupon comprises an electrically conductive material.4. The apparatus of wherein the test coupon comprises a passivated layer disposed on a surface of the test coupon.5. The apparatus of further comprising a temperature measurement device disposed at the inlet claim 1 , the outlet claim 1 , or both the inlet and the outlet.6. The apparatus of further comprising a pressure measurement device disposed at the inlet claim 1 , the outlet claim 1 , or both the inlet and the outlet.7. A method of corrosion monitoring comprising:weighing a test coupon to determine a first weight;inserting the test coupon into a flow path defined by a body, wherein one or more sealing elements are disposed between the test coupon and the body;flowing a fluid from an inlet of the body, through the flow path, and to an outlet of the body such that the fluid contacts the test coupon;flowing ...

STATISTICAL METHODS FOR ASSESSING DOWNHOLE CASING INTEGRITY AND PREDICTING CASING LEAKS

The present disclosure describes methods and systems, including computer-implemented methods, computer program products, and computer systems, for predicting casing leaks. One computer-implemented method includes obtaining raw electromagnetic (EM) corrosion data for a hotspot, wherein the raw EM corrosion data includes a metal thickness loss value for the hotspot; determining a corrosion parameter based on the raw EM corrosion data; generating a probability distribution curve for the corrosion parameter; generating a corrosion severity classification matrix based on the probability distribution curve, wherein the corrosion severity classification matrix includes a plurality of corrosion severity classes and cutoff values for each of the plurality of corrosion severity classes; and assigning the hotspot into one of the plurality of corrosion severity classes based on the corrosion severity classification matrix and the corrosion parameter of the hotspot. 1. A system for predicting downhole casing leaks of hotspots , comprising:a memory; and obtain, from corrosion logs generated by an electromagnetic (EM) logging tool, raw EM corrosion data for a hotspot, wherein the raw EM corrosion data includes a metal thickness loss value for the hotspot;', 'determine a corrosion parameter based on the raw EM corrosion data, wherein the corrosion parameter includes a corrosion rate that is calculated based on an original thickness value, a remaining thickness value, and a number of years;', 'generate a probability distribution curve for the corrosion parameter;', 'generate a corrosion severity classification matrix based on the probability distribution curve, wherein the corrosion severity classification matrix includes a plurality of corrosion severity classes and cutoff values for each of the plurality of corrosion severity classes;', 'assign the hotspot into one of the plurality of corrosion severity classes based on a comparison of the cutoff values for the plurality of ...

PREDICTION METHOD FOR CORROSION RATE OF STEAM GENERATOR TUBE USING EDDY CURRENT TESTING

Disclosed herein is a method including: performing eddy current testing on a steam generator tube material by using a motorized rotating pancake coil (MRPC) probe, evaluating a test signal measured using the eddy current testing, and predicting the corrosion rate of the steam generator tube material from a noise value in the MRPC inspection signal of the steam generator tube obtained from the evaluating. 1. A method of predicting a corrosion rate of a steam generator tube using eddy current testing , the method comprising:performing eddy current testing on a steam generator tube material by using a motorized rotating pancake coil (MRPC) probe;evaluating a test signal obtained by the eddy current testing; andpredicting the corrosion rate of the steam generator tube material from a noise value of the MRPC inspection signal of the steam generator tube where the noise value is obtained from the evaluating.2. The method as set forth in claim 1 , wherein the MRPC inspection signal in the performing of the eddy current testing is measured by using +Point coil probe.3. The method as set forth in claim 1 , wherein the MRPC inspection in the performing of the eddy current testing is measured using a pancake coil probe.4. The method as set forth in claim 1 , wherein the eddy current MRPC inspection signal acquired in the performing of the eddy current testing is measured in the frequency range from about 100 to 1000 kHz.5. The method as set forth in claim 1 , wherein the evaluating of the test signal is performed with a scheme of measuring relative amplitude of the noise signal in comparison to an amplitude of an eddy current MRPC defect signal of a calibration standard tube.6. The method as set forth in claim 5 , wherein the evaluating of the test signal is performed with a scheme of measuring the relative amplitude of the noise signal in comparison to an amplitude of an axial notch defect signal of 100% through-wall depth of the calibration standard tube.7. The method as set ...

System, Apparatus Or Method For Characterizing Pitting Corrosion

The present invention relates to a system, apparatus or and method to quantify features of relatively small defects or anomalies on a selected surface. Such defects may be associated with localized corrosion, such as pitting, that takes place on the surface of a metal exposed to a metallic environment. 1. Method for identifying corrosion surface pits on a metal surface comprising:identifying a plurality of pits on said metal surface with a measuring device and assigning said plurality of pits a value of x, y, and z where x and y are positions on the metal surface and z is the depth, wherein said metal surface has a surface incline and curvature; {'br': None, 'i': z', 'x,y', 'a+bx+cx', '+dy+ey', '+fxy, 'sub': 'plane', 'sup': 2', '2, '()=\u2003\u2003(1)'}, 'correcting for the presence of surface incline and curvature by initially fitting the values of x, y, and z into the following relationshipwherein the coefficients a, b, c, d, e and f are all real numbers and vary according to the incline and curvature of the metal surface;{'sub': meas', 'plane, 'claim-text': {'br': None, 'i': z|=|z', '−z', '|≦z, 'sub': meas', 'plane', 'o, '|Δ'}, 'identifying a collection of differences, Δz=z−z, that satisfy the expression below'}{'sub': meas', 'plane', 'o', 'pit, 'where zis the measured value of the z coordinate at a given x, y location on the metallic surface and zis the value of z at that location according to equation (1), and zis assigned a depth value (=−d) that is selected to compensate for the precision of the measuring device and the surface roughness present and not due to corrosion;'}{'sub': pit', 'pit', 'pit, 'mapping of pit depths that are less than dinto a two-dimensional matrix (M) wherein a value of Δz of greater than dis ignored and assigned a value of zero and a value of Δz of less than dis entered and mapped into said matrix; and'}distinguishing and identifying pit depths in said two-dimensional matrix associated with corrosion from those pit depths associated ...

ULTRASONIC CATHODIC PROTECTION TEST STATION

Ultrasonic transducers are imbedded into sacrificial metal coupons which are located in the vicinity of underground or aboveground structures, such as a pipe or tank, which allow for the measurement of the effectiveness of impressed current cathodic protection systems and can be used to determine the corrosion rate of the structure that is being protected. When excited by a pulser-receiver excitation pulse, the ultrasonic transducers can be used to determine the thickness of the coupon and its rate of change over time. The sacrificial metal coupon ultrasonic transducer assembly can be located in the vicinity of underground piping, under or inside of a tank, underground or underwater, or inserted into structures where absolute material loss values or material loss rate of change is being monitored. 1. A cathodic protection test station , comprising:a mounting tube having a top and a bottom;an input/output terminal secured to the top of the mounting tube;a transducer assembly having a body with one or more openings;one or more ultrasonic testing (UT) transducers positioned in the one or more openings in the transducer assembly;an acoustic couplant positioned adjacent the one or more UT transducers;a sacrificial coupon connected to the transducer assembly such that the sacrificial coupon is adjacent to the acoustic couplant; anda reference electrode connected to an input/output terminal with a wire for simultaneously measuring corrosion rate of the sacrificial coupon and an electromagnetic field created by an impressed current cathodic protection system.2. The corrosion coupon probe of claim 1 , wherein the reference electrode is a Cu—CuSOgrounding electrode.3. A transducer assembly claim 1 , comprising:a sacrificial coupon;one or more UT transducers; andan acoustic couplant, wherein the one or more transducers are connected to the sacrificial coupon and the acoustic couplant is positioned between the sacrificial coupon and the one or more UT transducers.4. The ...

System and Method for Sensing Corrosion in an Enclosure of an Information Handling System

An information handling system includes first and second lines of a differential pair. A baseboard management controller (BMC) periodically determines a resistance of the first line and a resistance of the second line. If the first resistance is substantially equal to the second resistance, then the BMC provides a corrosion signal to a remote diagnostic system.

FLEXIBLE PIPE ARMOR WIRE MONITORING SYSTEM AND METHOD

Disclosed are systems and methods for monitoring armor wires in a flexible pipe by inferring a condition of the armor wires using at least one polymeric coupon containing steel wires. The coupon is designed to simulate the conditions of the armor wires in the annulus of the flexible pipe. The coupon is removably held by a coupon holder in the bore of a surface pipe connected to the flexible pipe. The coupon can be removed from the bore of the surface pipe after a period of time to dissect the coupon and evaluate the steel wires. The systems and methods allow insight into the condition of the armor wires during operational life that does not otherwise exist at present. 1. A system for monitoring armor wire components in a flexible pipe wherein the flexible pipe has a bore , an annulus , a pressure sheath between the bore and the annulus , an outer sheath surrounding the annulus , and armor wire components within the annulus , the system comprising:a. at least one coupon comprising a polymeric material surrounding a plurality of steel wires; andb. a coupon holder for holding the at least one coupon in a position such that the at least one coupon extends into a bore of a surface pipe connected to the flexible pipe wherein one of the at least one coupon can be removed from the bore of the surface pipe after a desired period of time to evaluate a condition of the steel wires and thereby infer a condition of the armor wire components in the flexible pipe.2. The system of wherein a gap exists between the polymeric material and the steel wires.3. The system of wherein the gap results in a ratio of a surface area of the steel wires to a volume of the gap substantially equivalent to a ratio of a surface area of the armor wire components to a volume of space surrounding the armor wire components within the annulus of the flexible pipe.4. The system of wherein the polymeric material surrounding the plurality of steel wires has a thickness such that the polymeric material ...

CORROSION INDICATOR FOR USE WITH A PIPING SYSTEM, AND A PIPING SYSTEM USING THE CORROSION INDICATOR

Methods and devices for detecting and indicating corrosion and rate of progression of corrosion in piping such as piping having non-metallic liners. 1. A pipe corrosion indicating system , comprising:a metal pipe having an inner surface and an outer surface and having a thickness extending between the inner and the outer surfaces;a non-metallic liner in the pipe, contacting the inner surface of the pipe; anda corrosion indicator, a cavity formed in the outer surface of the pipe; and', 'a sensor in the cavity., 'wherein the corrosion indicator comprises2. The system according to claim 1 , wherein the non-metallic liner comprises a polymeric material.3. The system according to claim 2 , wherein the polymeric material is an elastomer.4. The system according to claim 1 , wherein the sensor is capable of detecting water claim 1 , an acid claim 1 , a base and/or a halogen.5. The system according to claim 1 , wherein first and second electrical conductors each having a first end in the cavity and an exterior second end for connection to a voltage source are connected to the sensor.6. The system according to claim 5 , wherein the sensor comprises a member comprising an electrically insulative material disposed in the cavity claim 5 , the first ends of the electrical conductors extending into the insulative material and being spaced from each other in the insulative material.7. The system according to claim 6 , wherein the insulative material is capable of absorbing fluid.8. The system according to claim 7 , wherein the insulative material is porous.9. The system according to claim 8 , wherein the insulative material is a mineral claim 8 , ceramic claim 8 , clay and/or polymeric material.10. The system according to claim 9 , wherein the electrical conductors become electrically connected when the insulative material absorbs a predetermined amount of the fluid.11. The system according to claim 1 , further comprising a sealing device claim 1 , which seals an inside of the ...

Sensor Having Magnetic Boundary Seal

A sensor device includes: a probe body having a first end and a second end, the probe body defining a probe cavity within the probe body; a sensor located at the first end of the probe body, the sensor having a sensor surface in sensory communication with the probe cavity defined within the probe body; a permanent magnet located adjacent the second end of the probe body and at least partially circumscribing the probe cavity defined within the probe body; an isolating boundary portion located between the permanent magnet and a surface of the object of interest and having a passage formed therethrough, the passage in communication with the probe cavity defined within the probe body.

Passive Multi-Layered Corrosion Sensor

The invention concerns corrosion sensors comprising a resistor, a voltage meter for determining voltage output across said resistor; and at least three different layers, each layer comprising a different material, said layers comprising: (a) non-corrosive conducting layer; (b) metal layer; and (c) electrically insulating layer deposed between the conducting layer and the metal layer; wherein the resistor connects the conducting layer and the metal layer. The invention further concerns use of such sensors use in monitoring and trouble-shooting corrosion impacts. 1. A corrosion sensor comprising:a resistor,a voltage meter or voltage data logger for determining voltage output across said resistor; and (a) corrosion-resistant conducting layer;', '(b) metal layer; and', '(c) electrically insulating layer deposed between said conducting layer and said metal layer;, 'at least three different layers, each layer comprising a different material, said layers comprisingwherein said resistor connects said conducting layer and said metal layer.2. The corrosion sensor of claim 1 , wherein said conductive layer comprises at least one of graphite claim 1 , titanium claim 1 , gold and platinum.3. The corrosion sensor of claim 1 , wherein said conductive layer comprises carbon/polymer or graphite/polymer fiber composite.4. The corrosion sensor of claim 1 , wherein said insulating layer comprises an insulating polymer or ceramic.5. The corrosion sensor of claim 1 , wherein said insulating layer comprises E-glass/polymer composite.6. The corrosion sensor of claim 1 , wherein said metal layer comprises a passive metal.7. The corrosion sensor of claim 6 , wherein said passive metal comprises aluminum.8. The corrosion sensor of claim 1 , additionally comprising a voltage data logger for recording the voltage or current across said resistor.9. The corrosion sensor of claim 8 , wherein said sensor does not have a power source other than that for said data logger.10. A method for monitoring ...

REMOTE FIELD EDDY CURRENT TECHNIQUE FOR CORROSION INSPECTION OF MULTIPLE PIPES INCLUDING TRANSITION SECTIONS

Systems and methods for corrosion detection of downhole tubulars. A method may include disposing an electromagnetic logging tool in a wellbore, wherein the electromagnetic logging tool may comprise a transmitter and a receiver; making a first measurement with the electromagnetic logging tool in a first nominal section of the wellbore, wherein the first nominal section may comprise M pipes, wherein M may be a number of pipes positioned in the first nominal section; making a second measurement with the electromagnetic logging tool in a second nominal section of the wellbore, wherein the second nominal section may comprise N pipes, wherein N may be a number of pipes in the second nominal section, wherein N may be different than M; calculating a phase difference between the first and second measurements; calculating a thickness difference between the first and second measurements; calculating a first slope from at least the phase difference and the thickness difference; making a third measurement in a non-nominal section of the wellbore; and calculating a thickness associated with a depth of the third measurement using at least the first slope and the third measurement. 1. A method comprising:disposing an electromagnetic logging tool in a wellbore, wherein the electromagnetic logging tool comprises a transmitter and a receiver;making a first measurement with the electromagnetic logging tool in a first nominal section of the wellbore, wherein the first nominal section comprises M pipes, wherein M is a number of pipes positioned in the first nominal section;making a second measurement with the electromagnetic logging tool in a second nominal section of the wellbore, wherein the second nominal section comprises N pipes, wherein N is a number of pipes in the second nominal section, wherein N is different than M;calculating a phase difference between the first and second measurements;calculating a thickness difference between the first and second measurements;calculating a ...

Electronic Monitoring of Gas Adsorbent Media Bed

A method for manufacturing a device for electronically monitoring the consumption of gas adsorbent media in a media bed includes forming a monitoring rod of a corrosion resistant material. A plurality of sensors are attached to an exterior surface of the monitoring rod, and a communication channel is routed between each sensor and the connecting rod. 1. A method for manufacturing a device for electronically monitoring the consumption of gas adsorbent media in a media bed , comprising the steps of:forming a monitoring rod of a corrosion resistant material,attaching a plurality of sensors to an exterior surface of the monitoring rod; androuting a communication channel between each sensor of the plurality of sensors to a proximal portion of the connecting rod.2. The method of claim 1 , further comprising the step of providing a controller configured to communicate with each sensor of the plurality of sensors via the communication channels.3. The method of claim 2 , further comprising the step of configuring the controller to detect a change in resistance and/or permittivity at least one of the sensors.4. The method of claim 1 , further comprising the step of forming an aperture between an exterior surface and an interior of the monitoring rod.5. The method of claim 4 , wherein routing the communication further comprises threading a sensor lead through the aperture.6. The method of claim 5 , further comprising the step of sealing the aperture with a corrosion resistant sealing material.7. The method of claim 5 , further comprising the step of filling the interior of the monitoring rod with a potting material. This application is a divisional of U.S. patent application Ser. No. 14/503,489, filed Oct. 1, 2014, entitled “Media Bed Monitoring Device and System”, which claims the benefit of U.S. Provisional Patent Application Ser. No. 61/886,781, filed Oct. 4, 2013, entitled “Media Bed Monitoring Device and System,” both of which are incorporated by reference herein in their ...

REAL TIME NUMERICAL COMPUTATION OF CORROSION RATES FROM CORROSION SENSORS

A method for determining a corrosion rate includes receiving an input signal including corrosion data from a sensor. A signal-to-noise ratio (SNR) and a type of noise is determined from the input signal. A corrosion rate computation method is selected based on the SNR and the type of noise. The corrosion rate is determined, using a processor, based on a selected corrosion rate computation method. 1. A method for determining a corrosion rate , comprising:receiving an input signal including corrosion data from a sensor;determining a signal-to-noise ratio (SNR) and a type of noise from the input signal;selecting a corrosion rate computation method based on the SNR and the type of noise; anddetermining, using a processor, the corrosion rate based on a selected corrosion rate computation method.2. The method as recited in claim 1 , wherein selecting the corrosion rate computation method includes applying Kalman filtering where the type of noise is Gaussian noise.3. The method as recited in claim 1 , wherein selecting the corrosion rate computation method includes applying least square fitting where the SNR is less than one and applying Kalman filtering where the SNR is one or more.4. The method as recited in claim 1 , wherein selecting the corrosion rate computation method includes applying least square fitting by QR decomposition.5. The method as recited in claim 1 , wherein selecting the corrosion rate computation method includes applying least square fitting using a forgetting factor to scale down past data.6. The method as recited in claim 5 , further comprising adapting the forgetting factor based upon the SNR.7. The method as recited in claim 1 , further comprising combining results of two or more corrosion rate computation methods by weighting the results.8. The method as recited in claim 1 , further comprising applying least square fitting where Kalman filtering does not converge.9. The method as recited in claim 1 , wherein the corrosion data indicates a change ...

CORROSION RATE MEASUREMENT USING SACRIFICIAL PROBE

A corrosion rate measurement system includes a sacrificial probe configured to be exposed to a corrosive material. A sensor is arranged to detect physical changes in the sacrificial probe due to corrosion of the sacrificial probe from the corrosive material. Measurement circuitry is connected to the sensor and provides an output indicative of a corrosion rate of the sacrificial probe from exposure to the corrosive material. The sacrificial probe has a physical characteristic which causes the sacrificial probe to corrode at a non-linear rate. 1. A corrosion rate measurement system , comprising:a sacrificial probe configured to be exposed to a corrosive material;a sensor arranged to detect physical changes in the sacrificial probe due to corrosion of the sacrificial probe from the corrosive material; andmeasurement circuitry connected to the sensor having an output indicative of a corrosion rate of the sacrificial probe from exposure to the corrosive material;wherein the sacrificial probe has a physical characteristic which cause the sacrificial probe to corrode at a non-linear rate.2. The corrosion rate measurement system of claim 1 , wherein the sacrificial probe comprises a multi-layer structure.3. The corrosion rate measurement system of claim 1 , wherein the sacrificial probe comprises an exostructure.4. The corrosion rate measurement system of claim 1 , wherein the sacrificial probe comprises a plurality of different materials having different corrosion rates.5. The corrosion rate measurement system of claim 1 , wherein a stiffness of the sacrificial probe changes in response to corrosion.6. The corrosion rate measurement system of claim 1 , wherein the sacrificial probe is configured to detect corrosive pitting.7. The corrosion rate measurement system of claim 1 , wherein the sacrificial probe comprises an exterior layer supported by a support structure.8. The corrosion rate measurement system of claim 7 , wherein corrosion of the exterior layer allows the ...

SYSTEMS FOR DETERMINING AND IMAGING WAX DEPOSITION AND SIMULTANEOUS CORROSION AND WAX DEPOSIT DETERMINATION IN PIPELINES

The systems for determining and imaging wax deposition and simultaneous corrosion and wax deposit determination in pipelines relate to systems for determining wax deposition and corrosion by one or both of two techniques. In both techniques, a source of neutron radiation is directed at the pipeline. In one technique, a neutron detector surrounded by an absorption shield defining a collimation window counts neutrons reflected back to the detector by back diffusion or backscatter radiation. In the other technique, a gamma ray detector measures gamma rays emitted when the emitted neutrons are absorbed in the pipeline. A neutron moderator-reflector is placed around three sides of the pipeline to increase the likelihood of neutron capture. 111-. (canceled)13. The system for simultaneous determination of wax deposition and corrosion in a pipeline according to claim 12 , further comprising means for calibrating the system before the system is used to determine wax deposition and corrosion in the pipeline.14. The system for simultaneous determination of wax deposition and corrosion in a pipeline according to claim 12 , wherein the gamma shield separating the neutron radiation source from the germanium gamma ray detector is selected from the group consisting of lead and tungsten.15. The system for simultaneous determination of wax deposition and corrosion in a pipeline according to claim 12 , further comprising a neutron moderator surrounding the neutron radiation source.16. The system for simultaneous determination of wax deposition and corrosion in a pipeline according to claim 15 , wherein the neutron moderator surrounding the neutron radiation source comprises a layer of paraffin.17. The system for simultaneous determination of wax deposition and corrosion in a pipeline according to claim 15 , wherein the neutron moderator surrounding the neutron radiation source comprises a layer of polyethylene.18. The system for simultaneous determination of wax deposition and ...

INTEGRATED LOGGING TOOL METHOD FOR IDENTIFYING WELL DAMAGE

An integrated and rigless method of determining the location and the type of damage in casing or tubing of a wellbore that involves recording a thickness profile of the casing or tubing, a temperature log, and a noise log along the depth of the wellbore, followed by locating the damage from the thickness profile, and determining the type of damage from the temperature log and the noise log. 1: A logging tool method of determining location and type of a damage in a casing of a well , comprising:moving a logging tool downward through the well;logging thickness of the casing along the depth of the well to obtain a thickness profile using a thickness measurement device selected from the group consisting of a mechanical caliper and a flux-leakage tool, connected to the logging tool;logging temperature along the depth of the well to obtain a temperature log with the logging tool;logging sound frequency along the depth of the well to obtain a noise log with the logging tool;determining the location of the damage by identifying a depth in the thickness profile where the thickness is less than a predetermined thickness threshold with the logging tool;determining the type of the damage by comparing the temperature log to a geothermal temperature log, and the sound frequency at the damage with a frequency threshold; andinjecting a cement to the vicinity of the damage to repair the damage,wherein the damage is determined to be a leak, when the temperature of the temperature log is constant or decreases relative to the geothermal temperature log with increasing depth along the vicinity of the damage, andwherein the damage is determined to be corrosion, when the temperature of the temperature log increases relative to the geothermal temperature log with increasing depth along the vicinity of the damage.2. (canceled)3: The integrated method of claim 1 , wherein the damage is determined to be a leak claim 1 , when the temperature of the temperature log fluctuates with increasing ...

ALIGNMENT OF RESPONSES FOR THICKNESS ESTIMATIONS IN A CORROSION DETECTION TOOL

Systems and methods for corrosion detection of downhole tubulars. A method may comprise disposing a corrosion detection tool in a wellbore, wherein the wellbore comprises a plurality of concentric pipes, wherein the corrosion detection tool comprises: a primary array section comprising a primary array transmitter and primary array receivers; and a high resolution array section comprising a high resolution array transmitter and high resolution array receivers; making a measurement with the primary array section to obtain primary array measurements; making a measurement with the high resolution array section to obtain high resolution array measurements; equalizing resolutions of the primary array section and the high resolution array section; calculating an offset using cross-correlation between the primary array measurements; shifting the primary array measurements or the high resolution array measurements using the offset to provide shifted data; and performing an inversion on the shifted data to calculate thicknesses of one or more of the concentric pipes. 1. A method comprising: a primary array section comprising a primary array transmitter and primary array receivers; and', 'a high resolution array section comprising a high resolution array transmitter and high resolution array receivers;', 'making a measurement with the primary array section to obtain primary array measurements;', 'making a measurement with the high resolution array section to obtain high resolution array measurements;', 'equalizing resolutions of the primary array section and the high resolution array section;', 'calculating an offset using cross-correlation between the primary array measurements;', 'shifting the primary array measurements or the high resolution array measurements using the offset to provide shifted data; and', 'performing an inversion on the shifted data to calculate thicknesses of one or more of the concentric pipes., 'disposing a corrosion detection tool in a wellbore, ...

Brush Wheel Assemblies with Active Guide Discs for In-Line Inspection Tool

A device for measuring a voltage differential communicated through a portion of a pipe or pipeline includes electrical contact assemblies which feature brush wheel assemblies. The brush wheel assemblies incorporate at least one brush wheel and at least one active guide disc which helps to absorb vibration, maintain even preload at the contact face of the rotating brush and ensure improved electrical contact between the brush wheel and the pipe. 1. A device for monitoring conductivity of a pipe comprising:a central shaft assembly to be inserted into the pipe;first and second electrical contact assemblies which extend radially outwardly from the central shaft assembly to make electrical contact with the pipe;a voltage measurement device operable to measure a voltage differential across a length of the pipe; a rotary brush wheel having bristles to contact the pipe to permit measurement of the voltage differential; and', 'an active guide disc which contacts the pipe when the bristles of the brush wheel contact the pipe to reduce dynamics and slippage of the brush wheel., 'at least one of the first and second electrical contact assemblies includes a brush wheel assembly having2. The device of wherein the rotary brush wheel and the active guide disc are mounted upon a single axle.3. The device of wherein the rotary brush wheel is carried by a first axle and the active guide disc is carried by a second axle.4. The device of wherein the active guide disc comprises:a radially outer rigid contact disc; andan axle dampener to absorb vibrational energy between the contact disc and an axle.5. The device of wherein the axle dampener is formed of a flexible claim 4 , deformable material.6. The device of wherein the axle dampener comprises:an inner frame;an outer frame; anda plurality of leaf springs disposed radially between the inner and outer frames.7. The device of wherein the axle dampener comprises:an inner frame;an outer frame; anda plurality of spokes disposed radially ...

RADIO FREQUENCY WIRELESS SENSING DEVICE

The present application provides an apparatus comprising a radio frequency identification (RFID) sensor comprising: an antenna configured to receive an interrogation signal from a reader and to transmit a response signal to the reader; at least one integrated circuit (IC) connected to the antenna; and at least one sensing element. The apparatus further comprises a channel for directing transmission of signals between the antenna and the reader, wherein the RFID sensor is attached or directly adjacent to a first end of the channel. The sensing element is responsive to a change induced by its environment to switch from a conductive state to a non-conductive state, or from a non-conductive state to a conductive state. The present application further provides a method for monitoring the integrity or the change in environment of a buried structure using the RFID sensor-containing apparatus.

Electrical Connection Via Fastener Hole

The systems, apparatus, and methods disclosed herein provide access to systems located within a closed structure, such that the systems are traditionally difficult for humans to access. Exemplary structures include an engine compartment, airplane wing, or fuselage. This access allows a system located within the structure to be electrically coupled with an electrical I/O device located outside the structure. Access to a system located within the closed structure is provided by way of a hole. 1. An electrical connection plug sized and configured to mate with , and thereby form an electrical connection with , one or more electrodes disposed within an interior space of a closed structure by way of insertion through a hole in the closed structure configured to retain a fastener.2. The plug of claim 1 , wherein the fastener is selected from the group consisting of a bolt claim 1 , a rivet claim 1 , a screw claim 1 , an insert claim 1 , a pin claim 1 , a pipe plug claim 1 , a bit claim 1 , an anchor claim 1 , an insert claim 1 , a threaded rod claim 1 , a pin fastener claim 1 , a blind fastener claim 1 , a threaded fastener claim 1 , studs claim 1 , retaining rings claim 1 , and special-purpose fasteners.3. The plug of claim 1 , wherein the one or more electrodes are coupled to a sensor network or excitation device located inside the closed structure.4. The plug of claim 1 , wherein the plug is sized and configured to be anchored when mated with the one or more electrodes.5. The plug of claim 1 , wherein the plug is configured to electrically couple the one or more electrodes to an electronic I/O device.6. The plug of claim 5 , wherein the plug is further configured to pass one or more driving signals from the electronic I/O device through the one or more electrodes to a sensor network comprising at least a first transducer and a second transducer claim 5 , defining a pair of transducers claim 5 , wherein the sensor network is located in the closed structure.7. The plug of ...

Media Bed Monitoring Device and System

A system electronically monitors the consumption of gas adsorbent media in a media bed. The system includes a controller and a monitoring rod having a plurality of sensors disposed on the monitoring rod. The sensors are in communication with the controller. Each sensor includes a corrodible portion having an exposed electrically conducting material susceptible to corrosion by a corrosive agent, a first lead in electrical contact with a first end of the corrodible portion, and a second lead in electrical contact with a second end of the corrodible portion. The corrodible portion, the first lead and the second lead together form a continuous communication path to the controller, and the monitoring rod is at least partially disposed in the media. 1. A monitoring rod in communication with a controller for monitoring chemical adsorption of a gas adsorbent media , comprising:a distal end;a proximal end;an interior portion;an exterior portion; and a corrodible portion comprising an exposed electrically conducting material susceptible to corrosion by a corrosive agent;', 'a first lead in electrical contact with a first end of the corrodible portion; and', 'a second lead in electrical contact with a second end of the corrodible portion;, 'a plurality of sensors disposed on the monitoring rod and in communication with the controller, each of the plurality of sensors further comprisingwherein the corrodible portion, the first lead and the second lead comprise a continuous electrical connectivity path to the controller.2. The monitoring rod of claim 1 , wherein the corrodible portion is configured to respond with a change in resistance and/or permittivity when subjected to the corrosive agent.3. The monitoring rod of claim 1 , wherein at the corrodible portion of each sensor is at least partially disposed on the rod exterior portion.4. The monitoring rod of claim 1 , wherein the first lead is at least partially disposed within the rod interior.5. The monitoring rod of claim 1 , ...

SENSOR DEVICE AND PIPELINE MONITORING SYSTEM

An absolute thickness distribution cannot be accurately calculated with a conventional technique. A sensor device is provided that includes a plurality of magnetic sensors arranged to face an outer circumference surface of a pipeline and ultrasonic sensors arranged to face the outer circumference surface and measure a thickness of the pipeline in a measurement region in which the plurality of magnetic sensors measure a magnetic field, the ultrasonic sensors being less than the plurality of magnetic sensors. 1. A sensor device comprising:a plurality of magnetic sensors arranged to face an outer circumference surface of a pipeline; andultrasonic sensors arranged to face the outer circumference surface and measure a thickness of the pipeline in a measurement region in which the plurality of magnetic sensors measure a magnetic field, the ultrasonic sensors being less than the plurality of magnetic sensors.2. The sensor device according to further comprising:a case portion forming an internal space holding insulating liquid, the internal space being formed around a part of an outer circumference of the pipeline in a longitudinal direction, whereinthe magnetic sensors and the ultrasonic sensors are each disposed in the liquid.3. The sensor device according to claim 2 , whereinthe liquid is interposed between each of the ultrasonic sensors and the outer circumference surface.4. The sensor device according to claim 2 , whereinthe case portion includestwo end portion members that are disposed on both sides of the internal space in the longitudinal direction, and are in contact with the outer circumference surface over an entire circumference of the pipeline, anda case portion main body that extends between the two end portion members in the longitudinal direction and is in contact with outer circumference surfaces of the end portion members over the entire circumference of the pipeline,the magnetic sensors and the ultrasonic sensors are each disposed on a substrate facing ...

THERMOGRAPHY IMAGE PROCESSING WITH NEURAL NETWORKS TO IDENTIFY CORROSION UNDER INSULATION (CUI)

A method for identifying corrosion under insulation (CUI) in a structure comprises receiving thermographs from the structure using an infrared camera, applying filters to the thermograph using a first machine learning system, initially determining a CUI classification based on output from the filters, and validating the initial CUI classification by an inspection of the structure. The first machine learning system is trained using results of the validation. Outputs of the first machine learning system and additional structural and environmental data are fed into a second machine learning system that incorporates information from earlier states into current states. The second machine learning system is trained to identify CUI according to changes in the outputs of the first machine learning system and the additional data over time until a second threshold for CUI classification accuracy is reached. CUI is thereafter identified using the first and second machine learning systems in coordination. 1. A computer-implemented method for identifying corrosion under insulation (CUI) in a structure , comprising:a) receiving a thermograph captured from the structure using an infrared radiation sensor and additional data related to the structure and environmental conditions;b) applying one or more filters to the thermograph and the additional data using a first machine learning system;c) initially determining a CUI classification based on output from the one or more filters;d) validating the initial CUI classification by an inspection of the structure;e) training the filters of the first machine learning system based on results of the validation;f) repeating steps a) through e) with additional thermograph data until a first threshold for CUI classification accuracy is reached;g) inputting outputs of the first machine learning system and additional data related to the structure and environment conditions into a second machine learning system that incorporates information from ...

APPARATUS AND METHOD FOR EVALUATING LUBRICANT OIL VARNISH

A method and apparatus for generating lube oil varnish samples and testing them under flow conditions is set forth herein. The method and apparatus are also used for the evaluation of the efficiency of varnish cleaners. 1. A process for making a varnish composition comprising:(a) Aging a specific lubricant blend through thermal aging tests consisting of ASTM D7873, D943, D4310, D2272, D4636, D2691, D2070, D2893, D5763, D2893, DIN 51554, DIN 51352, IP 306, IP 140, IP 280, FTM 791A-3462, JIS K-2514 tests and modified versions of these standard tests to generate various types of sludge in a gel or powder form,(b) The soft, gel-sludge is directly pasted onto a substrate; the powdery sludge is cold or hot pressed by a hydraulic press onto a substrate, with or without a bonding material,(c) Post heat-treatment of the resultant composition of (b) is conducted in an oven at chosen temperature and with certain time frame to make standardized varnish coupons.2. A varnish coupon composition produced from step (c) of .3. A fluid circulation apparatus for varnish removal testing comprising a reservoir with baffle claim 1 , a conduit coupled to a hydraulic pump claim 1 , motor for powering the hydraulic pump claim 1 , pressure relief valve claim 1 , pressure gauge claim 1 , positive displacement flow meter claim 1 , three-way ball valve claim 1 , test cell containing a varnish coupon claim 1 , in-line pressure filter claim 1 , heater claim 1 , and variable area flow meter.4. A method for testing the removal of varnish comprising placing a varnish coupon in the fluid circulation apparatus of claim 3 , circulating fluid for a desired time claim 3 , removing the varnish coupon from the test cell and evaluating the physical properties of the varnish.5. A method for testing the removal of varnish comprising placing a varnish coupon in a fluid filled container possessing a stirrer or mechanical mixer that induces fluid circulation claim 3 , circulating the fluid around the varnish ...

Method of providing monitoring of erosion and/or corrosion in a machine and machine

In a machine, for example a centrifugal compressor, erosion and/or corrosion of a part of the machine exposed to a working fluid to be processed by the machine is/are monitored; a corrosion probe and/or an erosion probe is/are suitably positioned inside the machine; the corrosion probe and/or the erosion probe is provided with a measurement element that is exposed to the working fluid when the machine operates; the measurement element is made of the same material of the part to be monitored so that the measurement element and the part are eroded and/or corroded in the same or similar way and/or at the same or similar rate. Corrosion and/or erosion data detected by the probe are transmitted from the probe to an electronic unit.

SENSOR DEVICE

A sensor device includes a first electrode, a second electrode, and a functional element. The first electrode includes a porous body having holes in at least the vicinity of a surface of the first electrode, and includes a first metallic material in which either a first passivation film is formed on the surface or the first passivation film present on the surface is lost. The second electrode spaced apart from the first electrode includes a porous body having holes in at least the vicinity of a surface of the second electrode. The functional element is configured to measure a difference in electric potential between the first and second electrodes. A porosity of the first electrode and a porosity of the second electrode are different from each other. The sensor device is configured to measure a state of a site to be measured based on the difference in electric potential. 1. A sensor device comprising:a first electrode including a porous body that has a plurality of holes in at least the vicinity of a surface of the first electrode, the first electrode including a first metallic material in which either a first passivation film is formed on the surface of the first electrode or the first passivation film present on the surface of the first electrode is lost;a second electrode spaced apart from the first electrode, the second electrode including a porous body that has a plurality of holes in at least the vicinity of a surface of the second electrode; anda functional element configured to measure a difference in electric potential between the first electrode and the second electrode,a porosity of the first electrode and a porosity of the second electrode being different from each other,the sensor device being configured to measure a state of a site to be measured based on the difference in electric potential as measured by the functional element.2. The sensor device according to claim 1 , whereinthe first and second electrodes include the porous bodies that have a ...

METHOD AND APPARATUS FOR DIAGNOSING STATUS OF PARTS IN REAL TIME IN PLASMA PROCESSING EQUIPMENT

Apparatus and methods for diagnosing status of a consumable part of a plasma reaction chamber, the consumable part including at least one conductive element embedded therein. The method includes the steps of: coupling the conductive element to a power supply so that a bias potential relative to the ground is applied to the conductive element; exposing the consumable part to plasma erosion until the conductive element draws a current from the plasma upon exposure of the conductive element to the plasma; measuring the current; and evaluating a degree of erosion of the consumable part due to the plasma based on the measured current. 1. A consumable part of a plasma reaction chamber , the consumable part is formed of conductive material and including a surface to be exposed to plasma , includes:conductive elements embedded in the consumable part and electrically insulated from the consumable part by a dielectric layer;a probe circuit coupled to the conductive elements; anda power supply coupled to the probe circuit and ground to apply a bias potential to the conductive elements relative to the ground,wherein the conductive elements are operative to draw a current from the plasma upon exposure of the conductive elements to the plasma and the probe circuit is operative to measure the current.2. The consumable part of claim 1 , wherein the power supply is a DC power source.3. The consumable part of claim 1 , wherein the probe circuit includes a resistor and a voltmeter to measure an electrical potential across the resistor.4. The consumable part of claim 1 , wherein each of the conductive elements has a shape selected from the group consisting of pin claim 1 , polygonal claim 1 , circular claim 1 , and annular.5. The consumable part of claim 1 , wherein the conductive elements are electrically connected to each other by a conductive wire.6. The consumable part of claim 1 , wherein the power supply is operable to supply a bias potential of 10 to 15 volts relative to the ...

SYSTEMS AND DEVICES FOR SENSING CORROSION AND DEPOSITION FOR OIL AND GAS APPLICATIONS

Sensing systems include a tube defining a Fabry-Perot cavity and an optical fiber including a distal end disposed within the Fabry-Perot cavity and a proximal end. A corrodible material caps the Fabry-Perot cavity. Devices for sensing corrosion of downhole equipment include an optical fiber with a corrodible material disposed over a distal end of the optical fiber. Systems for sensing a condition in equipment include an optical fiber with a fiber Bragg grating proximate a distal end thereof and a mass of sensor material coupled to the distal end of the optical fiber. The mass of sensor material is suspended from above the fiber Bragg grating. Other systems for sensing a condition in a wellbore include an optical fiber and a plurality of fiber Bragg gratings along a length thereof. A plurality of sensor materials are coupled to the optical fiber and surround respective fiber Bragg gratings. 1. A wellbore sensing system , comprising:a tube defining a Fabry-Perot cavity;an optical fiber comprising a distal end disposed within the Fabry-Perot cavity and a proximal end opposite the distal end;a corrodible material capping the Fabry-Perot cavity; andan analysis module operatively coupled to the proximal end of the optical fiber, the analysis module configured to sense and analyze a difference of a light signal resulting from a change in a distance between the corrodible material and the distal end of the optical fiber due to a change in thickness of the corrodible material.2. The system of claim 1 , wherein the tube is positioned proximate a downhole component within a wellbore.3. The system of claim 1 , wherein the distal end of the optical fiber is mounted to an electrical submersible pump.4. The system of claim 1 , wherein the corrodible material is selected from the group consisting of aluminum claim 1 , titanium claim 1 , a carbon steel claim 1 , a tool steel claim 1 , a stainless steel claim 1 , and a corrosion-resistant alloy.5. The system of claim 1 , further ...

IN-SITU HIC GROWTH MONITORING PROBE

The present application concerns in-situ intrusive probe systems and methods. The probe systems described herein can be installed flush to a hydrocarbon containing structure, such as a pipeline, vessel, or other piping system carrying crude, gas or sour products. The probe systems include hydrogen induced cracking (HIC)-resistant microstructure such that as atomic hydrogen permeates the probe surface, the probe captures recombined hydrogen gas. The pressure of the resultant hydrogen gas buildup is measured and predictions as to the HIC activity of that area can be made. 138.-. (canceled)39. An intrusive probe system for flush insertion into a metal asset comprising:a probe body having an access end portion with an exposed surface configured to be exposed to a corrodent located within the metal asset, the access end portion having a recessed portion formed opposite the exposed surface;an insert having an access end and a base end, the access end being disposed adjacent recessed portion of the probe body so as to define a collection cavity that is fluid-tight and configured to collect the atomic hydrogen that permeates through the exposed surface of the probe body, whereby a gas is generated in the collection cavity by the atomic hydrogen, wherein the insert includes a through hole that passes therethrough and is open at both the access end and the base end such that the through hole is in fluid communication with the collection cavity; anda pressure measuring device in fluid communication with the through hole of the probe body for measuring a pressure of the gas generated by the diffused atomic hydrogen within the collection cavity.40. The probe system of claim 39 , wherein the gas generated by the diffused atomic hydrogen in the collection cavity is molecular hydrogen gas.41. The probe system of claim 39 , wherein the recessed portion is formed along a face of the access end portion opposite the exposed surface.42. The probe system of claim 39 , wherein the ...

Smart paint

A condition monitoring paint is formed of a base material, and conductive components for forming a conductive network. The conductive components may include nano-particles or nano-structures. The paint in used in a condition monitoring system for monitoring the integrity or condition of structures, such as bridges.

SYSTEMS AND METHODS OF REMOTE MONITORING OF EQUIPMENT

A corrosion monitoring device includes a sensor assembly and a detector circuit. The sensor assembly includes at least one sensor portion disposed in an interior of a pipe in a fire sprinkler system for sensing corrosion of a wall of the pipe. The detector circuit transmits an electrical signal through the at least one sensor portion, monitors an electrical characteristic of the at least one sensor portion based on the electrical signal, compares at least one of the monitored electrical characteristic and a change in the electrical characteristic of the at least one sensor portion to at least one of a predetermined value and a previously monitored electrical characteristic, determines a corrosion status indicative of at least one of a corrosion level and a rate of corrosion of the pipe wall based on the comparison, and outputs an indication of the corrosion status. 170.-. (canceled)71. A corrosion monitoring system , comprising:a sensor made of a material corresponding to a rate of corrosion of a wall of a pipe; and receive an electrical signal from the sensor, the electrical signal indicating a monitored value of an electrical characteristic;', 'determine a corrosion status indicative of at least one of a corrosion level of the wall and a rate of corrosion of the wall based on the monitored value of the electrical characteristic and at least one of a predetermined value of the electrical characteristic and a previously monitored value of the electrical characteristic; and', 'output an indication of the corrosion status., 'a detector to72. The corrosion monitoring system of claim 71 , comprising:the detector to determine the corrosion status by comparing at least one of the monitored value of the electrical characteristic and a change in the monitored value of the electrical characteristic to the at least one of the predetermined value and the previously monitored value.73. The corrosion monitoring system of claim 71 , comprising:the sensor comprises a plurality of ...

Methods and systems for measuring corrosion in-situ

Systems and methods for measuring corrosion rate of an equipment material are provided. A system may comprise a corrosion probe body for insertion within an interior of the equipment through which corrodant fluid flows. At least one sensor on the corrosion probe body includes an ultrasonic source configured to provide an ultrasonic signal into the probe body material, and a receiver configured to receive reflections of the ultrasonic signal from the probe body material and generate electrical response signals indicative of the travel time of the ultrasonic signal. A heat exchanger may be placed in fluid communication with the probe body to deliver heated or cooled fluids to the probe body. A processor is configured to process the electrical response signals and produce corresponding corrosion data.

Electromagnetic (em) defect detection methods and systems employing deconvolved raw measurements

A method includes deploying an electromagnetic (EM) defect detection tool in a downhole environment having a plurality of tubular strings with different diameters. The method also includes receiving raw measurements collected by the EM defect detection tool. The method also includes deconvolving the raw measurements with another input to obtain deconvolved raw measurements. The method also includes using the deconvolved raw measurements to determine a defect in at least one of the plurality of tubular strings. The method also includes performing, by a device, an operation in response to the determined defect.

MULTI-POINT IN SITU CALIBRATION OF ELECTROMAGNETIC PIPE INSPECTION TOOLS

A calibration system for an electromagnetic (EM) tool includes a processor. The processor employs the EM tool to measure responses at each of a plurality of channels. The processor records the measured responses at each of the channels in an EM data log for the channel. The processor determines a nominal value of each of the channels, as being equal to a histogram peak of the EM data log. The processor selects one or more calibration points from the EM data log for a particular channel, based on a difference between the nominal value of the particular channel and the measured response at the calibration point being greater than a particular threshold. The processor determines a plurality of parameters by reducing a misfit between synthetic data and both the nominal values of the channels and the measured responses of the channels at the selected one or more calibration points. 1. A method for calibrating an electromagnetic (EM) tool including at least one transmitter coil and a plurality of receiver coils , each of the receiver coils located at a respective axial spacing from the transmitter coil , the method comprising:disposing the EM tool in a plurality of tubing strings;employing the EM tool to measure responses at each of a plurality of channels, wherein each of the channels is defined by a corresponding receiver coil of the plurality of receiver coils and a corresponding frequency of a plurality of frequencies;recording the measured responses at each of the plurality of channels in an EM data log for the channel;determining a nominal value of each of the plurality of channels, as being equal to a histogram peak of the EM data log for the channel;selecting one or more calibration points from the EM data log for a particular channel of the plurality of channels, based on a difference between the nominal value of the particular channel and the measured response at the calibration point being greater than a particular threshold;determining a plurality of ...

Magnetostrictive Probe With Mechanical and Fluid Coupling for Guided Wave Testing of Tubular Structures

A probe for use in magnetostrictive testing of tubular structures. The probe has a handle and an outer tube, the latter having an expandable probe head for insertion into the tubular structure. A pair of magnetostrictive sensors is mounted in or on the probe head. A flexible bladder is located inside the outer tube in the area of the probe head, and communicates with a pressurizing cartridge in the probe handle via a bladder tube. The bladder is operable to expand, causing the probe head to expand, which moves the sensors toward the inner wall of the tubular structure. The probe is also equipped with a couplant injector that delivers coupling fluid to any gaps between the inner surface of the tubular structure and the outer surface of the probe. 1. A probe for use in magnetostrictive testing of a tubular structure , comprising:an outer tube having a probe head portion for insertion into the tubular structure, the outer tube being radially expandable at the probe head portion;a pair of magnetostrictive sensors in or on the probe head portion of the outer tube, each sensor comprising a ring-shaped magnet and a ring-shaped strip made from ferromagnetic material, the strip being concentric to and having a larger diameter than the magnet, the strip having an electrical coil wrapped around its width, and the magnet being polarized in a direction parallel to the longitudinal dimension of the outer tube;a flexible bladder located inside the outer tube in the area of the probe head;a probe handle attached to the outer tube at the end opposite the probe head;a pressurizing cartridge located in or on the probe handle, operable to store pressurizing fluid;a bladder tube extending longitudinally inside the outer tube, the bladder tube operable to deliver the pressurizing fluid from the pressurizing cartridge to the bladder, thereby causing the bladder to expand;a couplant cartridge located in or on the probe handle, operable to store couplant fluid;a couplant tube around and ...

Downhole Corrosion, Erosion, Scale and Deposit Monitoring System

A tool for monitoring conditions within a subterranean well includes a first body segment, the first body segment being an elongated member with an axial protrusion having a reduced outer diameter. A second body segment is sized for mating with the first body segment. A metal specimen circumscribes the axial protrusion of the first body segment so that an outer diameter surface of the metal specimen defines an outer diameter of the tool. A connection assembly releasably secures the first body segment to the second body segment. 1. A system for monitoring conditions within a subterranean well , the system comprising: a first body segment releasably secured to a second body segment, the first body segment having an axial protrusion with a reduced outer diameter;', 'a metal specimen circumscribing the axial protrusion so that an outer diameter surface of the metal specimen defines an outer diameter of the monitoring tool; and', 'an outer connection in one of the first body segment and the second body segment; and, 'a monitoring tool havingan intervention member connected to the outer connection, the intervention member having a gripping member moveable between a retracted position and an extended position, wherein when the gripping member is in the extended position, the intervention member is operable to suspend the monitoring tool within the subterranean well.2. The system in accordance with claim 1 , wherein the intervention member includes a shock absorber.3. The system in accordance with claim 1 , wherein the monitoring tool is shaped so that the outer diameter surface of the metal specimen is located in a direct undisturbed flow of fluids through the subterranean well when the monitoring tool is lowered within the subterranean well.4. The system in accordance with claim 1 , further including a mating assembly located at each end of the metal specimen isolating the metal specimen from direct contact with the first body segment and the second body segment.5. The ...

Wireline Signal Noise Reduction

A wireline system and method for removing wireline noise from an electromagnetic wireline tool comprising. The system may comprise a wireline measurement tool, which may comprise a wireline measurement tool body, a wireline cable traversing the tool body, and a wireline signal sensor measuring a signal induced by the wireline cable. The system may further comprise an electromagnetic wireline tool, comprising a wireline tool body, the wireline cable traversing the tool body, and a receiver measuring a signal. A method may comprise running the electromagnetic wireline tool into a wellbore on a wireline, recording wireline signals with a wireline signal sensor on a wireline measurement tool, recording signals with a receiver disposed on the electromagnetic wireline tool, and adjusting recorded signals on the receiver by subtracting filtered recorded signals from the wireline signal sensor.

DEVICE AND METHOD FOR MONITORING THE CONDITION OF SUBSEA PARTS, PARTICULARLY CABLE CONNECTORS

A subsea monitoring device comprises a metal part () disposed in a polymeric sheath (), and means () for providing a sensible indication of pH at an interface between the part and the sheath. The part may be the metal shell of a connector. When a cable () extends from the connector, adjacent the connector the cable would be covered by the polymeric sheath. The said means () may comprise a chemical indicator and the sheath is preferably sufficiently translucent to allow visual observation of the indicator. The chemical indicator may comprise phenolphthalein. 1. A subsea device comprising a metal part disposed in a polymeric sheath , characterised by means for providing a sensible indication of highly alkaline pH at an interface between the part and the sheath.2. A device according to in which the part is a metal shell of a subsea cable connector.3. A device according to in which a cable extends from the connector and adjacent the connector is covered by the polymeric sheath.4. A device according to in which the said means comprises a chemical indicator and the sheath is sufficiently translucent to allow visual observation of the indicator.5. A device according to in which the chemical indicator comprises phenolphthalein.6. A device according to in which the sheath comprises a heat-shrunk sleeve and a moulded cover.7. A method of monitoring the condition of a subsea part which has a protective polymeric sheath over a metal shell claim 4 , comprising monitoring for the occurrence of highly alkaline pH at an interface between the shell and the sheath so as to provide a warning of delamination of the sheath.8. A method of making a pH indicator for a subsea cable connector which has a metal shell claim 4 , comprising:(i) disposing a heat-shrinkable translucent sleeve over the shell;(ii) shrinking one end of the sleeve onto the shell to form a receptacle between the sleeve and the shell;(iii) partially filling the receptacle with a solution of a chemical indicator;(iv) ...

MONITORING STEEL SUPPORT STRUCTURES FOR OFFSHORE WIND TURBINES

Disclosed is a method for estimating deterioration of a steel support structure () supporting an offshore wind turbine (). The steel support structure () being made of a first type of steel, the method comprising the steps of: (a) providing a first sensor () having one or more sensor elements, wherein a first sensor element of the one or more sensor elements is made of a type of steel corresponding to the first type of steel; (b) arranging the first sensor () in connection with said steel support structure (); (c) inducing an electrical current through at least one of the one or more sensor elements; (d) monitoring the deterioration of a part of the first sensor () by in a first time interval measuring electrical properties of the first sensor () and storing the measurements as first data; (e) estimating the deterioration of the steel support structure () from the first data. 1. A method for estimating deterioration of a steel support structure supporting an offshore wind turbine , said steel support structure being made of a first type of steel , said method comprising:providing a first sensor having one or more sensor elements, wherein a first sensor element of said one or more sensor elements is made of a type of steel corresponding to said first type of steel;arranging said first sensor in connection with said steel support structure;inducing an electrical current through at least one of said one or more sensor elements;monitoring, in a first time interval, the deterioration of a part of said first sensor by measuring electrical properties of the first sensor and storing the measurements as first data; andestimating the deterioration of said steel support structure from said first data.2. A method according to claim 1 , wherein said steel support structure is coated on a first surface with a first type of coating claim 1 , the first sensor element is coated with said first type of coating claim 1 , and wherein the method further comprises:inducing a current ...

Corrosion Time Profile Measurement Device

A method of measuring the amount of corrosion of a target material caused exposure to a fluid, over a period of time, utilizing a corrosion measuring device, including a resonator having a first surface area made of a material having a corrosion profile like that of the target material and having a second surface area made of material having a corrosion profile unlike that of the target material; and a transducer assembly, positioned to drive the resonator and sense resultant resonator motion, thereby producing a sense signal. In the method, the resonator is exposed to the target fluid over the period of time and the sense signal is analyzed over the period of time to determine changes in how the resonator responds to being driven by the transducer assembly, over time. 1. A method of measuring the amount of corrosion of a target material caused exposure to a fluid , over a period of time: i. a resonator having a first surface area made of a material having a corrosion profile like that of said target material and having a second surface area made of material having a corrosion profile unlike that of said target material;', 'ii. a transducer assembly, positioned to drive said resonator and sense resultant resonator motion, thereby producing a sense signal;, 'a. providing a corrosion measuring device comprisingb. exposing said resonator to said target fluid over said period of time and analyzing said sense signal over said period of time to determine changes in how said resonator responds to being driven by said transducer assembly, over time.2. The method of wherein said first surface area is made of said target material.3. The method of claim 1 , wherein said resonator has a resonant frequency and said analyzing of said sense signal determines if said resonant frequency has changed over time.4. The method of claim 3 , wherein said resonator includes a first resonator mass claim 3 , having said first surface area and a second resonator mass claim 3 , having said ...

Defect Penetration Estimate Using Magnetic Flux Image Enhancement

An improved process for evaluating a defect in wellbore casing using a magnetic flux leakage tool is disclosed. According to the disclosed technique, signals recorded using a magnetic flux leakage tool are arranged into a matrix that defines a magnetic flux leakage image, and a defect in the evaluated wellbore casing is identified in the image. A portion of the image in which the defect appears is enhanced using an iterative image enhancement process to determine a geometry of the defect. A characteristic value of the defect is then used in conjunction with a characteristic value-degree of penetration relationship that is specific to the determined geometry in order to determine the degree of penetration of the defect. 1. A method , comprising:recording a plurality of signals that are each representative of magnetic flux at a location within a wellbore having a casing;arranging the plurality of signals in a matrix that defines an image;identifying, based on the image, a defect in the casing; and enhancing a portion of the image in which the defect appears;', 'determining a geometry of the defect from the enhanced portion of the image; and', 'determining a degree of penetration of the defect based on the determined geometry., 'performing an iterative process comprising2. The method of claim 1 , wherein enhancing the portion of the image comprises:convolving an estimate of the portion of the image to generate a blurred image;subtracting the blurred image from the portion of the image to generate a difference image; andadding the difference image to the estimate of the portion of the image to generate the enhanced portion of the image, wherein the enhanced portion of the image is used as the estimate of the portion of the image in a subsequent iteration.3. The method of claim 2 , wherein the portion of the image is used as the estimate of the portion of the image for a first iteration.4. The method of claim 2 , wherein convolving the estimate of the portion of the ...