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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 28. Отображено 26.
27-07-2017 дата публикации

OPTICAL SENSORS FOR DOWNHOLE TOOLS AND RELATED SYSTEMS AND METHODS

Номер: US20170212272A1
Автор: Othon R. Monteiro, Radhika Suresh, MONTEIRO OTHON R, SURESH RADHIKA, Monteiro Othon R., Suresh Radhika
Принадлежит:

A method of detecting at least one of an analyte or a condition of a fluid within a subterranean formation comprises operably coupling a radiation source to at least one optical fiber coupled to a sensor comprising optically sensitive materials including at least one of chromophores, fluorophores, metal nanoparticles, or metal oxide nanoparticles dispersed within an optically transparent permeable matrix material. The sensor is contacted within a wellbore with a fluid and the fluid is passed through at least a portion of the sensor. Electromagnetic radiation is transmitted from the radiation source through at least one optical fiber to the sensor and at least one of an absorbance spectrum, an emission spectrum, a maximum absorption intensity, or a maximum emission intensity of electromagnetic radiation passing through the sensor after contacting at least some of the optically sensitive materials with the fluid is measured. Additional methods of determining a concentration of hydrogen sulfide in a fluid within a subterranean formation and related downhole optical sensor assemblies are disclosed. 1. A method of detecting at least one of an analyte or a condition of a fluid within a subterranean formation , the method comprising:operably coupling a radiation source to at least one optical fiber coupled to a sensor comprising optically sensitive materials including at least one of chromophores, fluorophores, metal nanoparticles, or metal oxides nanoparticles dispersed within an optically transparent permeable matrix material;contacting the sensor within a wellbore with a fluid and passing the fluid through at least a portion of the sensor comprising the optically sensitive materials;transmitting electromagnetic radiation from the radiation source through at least one optical fiber to the sensor; andmeasuring at least one of an absorbance spectrum, an emission spectrum, a maximum absorption intensity, or a maximum emission intensity of electromagnetic radiation passing ...

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Номер записи: 1
23-01-2018 дата публикации

Chemiresistive sensors, downhole tools including such sensors, and related methods

Номер: US0009874548B2
Автор: Othon R. Monteiro, MONTEIRO OTHON R, Monteiro Othon R.
Принадлежит: Baker Hughes Incorporated, BAKER HUGHES INC

A method of detecting an analyte includes vaporizing at least a portion of a fluid within a wellbore, passing the vaporized fluid adjacent a chemiresistive sensing element coupled to a drill string within the wellbore and sensing a resistivity of the chemiresistive sensing element. A sensor for detecting an analyte includes an expansion device for vaporizing a portion of a fluid within a wellbore, a chemiresistive sensing element configured to contact the vaporized fluid within the wellbore and a controller configured to pass a current through the chemiresistive sensing element and calculate a resistance of the chemiresistive sensing element in contact with the gaseous portion of the fluid. An earth-boring tool may include a bit body coupled to a drill string and the sensor.

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Номер записи: 2
27-04-2017 дата публикации

CHEMIRESISTIVE SENSORS, DOWNHOLE TOOLS INCLUDING SUCH SENSORS, AND RELATED METHODS

Номер: US20170115263A1
Автор: Othon R. Monteiro, MONTEIRO OTHON R, Monteiro Othon R.
Принадлежит:

A method of detecting an analyte includes vaporizing at least a portion of a fluid within a wellbore, passing the vaporized fluid adjacent a chemiresistive sensing element coupled to a drill string within the wellbore and sensing a resistivity of the chemiresistive sensing element. A sensor for detecting an analyte includes an expansion device for vaporizing a portion of a fluid within a wellbore, a chemiresistive sensing element configured to contact the vaporized fluid within the wellbore and a controller configured to pass a current through the chemiresistive sensing element and calculate a resistance of the chemiresistive sensing element in contact with the gaseous portion of the fluid. An earth-boring tool may include a bit body coupled to a drill string and the sensor. 1. A method of detecting an analyte , comprising:passing a vapor within a wellbore adjacent a chemiresistive sensing element within the wellbore, the chemiresistive sensing element configured such that a resistivity of the chemiresistive sensing element changes in response to a presence of an analyte in proximity to the chemiresistive sensing element; andsensing the resistivity of the chemiresistive sensing element.2. The method of claim 1 , wherein sensing the resistivity of the chemiresistive sensing element comprises measuring at least one of a current passing through the chemiresistive sensing element and a voltage drop across the chemiresistive element.3. The method of claim 1 , wherein passing the vapor within a wellbore adjacent a chemiresistive sensing element comprises passing at least a portion of the vapor through a membrane selective to transfer of the at least one component of the vapor.4. The method of claim 1 , further comprising forming at least a portion of the vapor within the wellbore by vaporizing a gas dissolved in a liquid.5. The method of claim 4 , wherein forming at least a portion of the vapor within the wellbore comprises moving a piston to expand a volume in which the ...

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Номер записи: 3
02-05-2017 дата публикации

Method of controlling reservoir particles using electrolytic composite materials

Номер: US0009637680B2
Автор: James Crews, Othon R. Monteiro, CREWS JAMES, MONTEIRO OTHON R, Crews James, Monteiro Othon R.
Принадлежит: BAKER HUGHES INCORPORATED, CREWS JAMES, MONTEIRO OTHON R, BAKER HUGHES INC, Crews James, Monteiro Othon R.

A method of reducing the presence of particles in a downhole environment, comprising contacting sediment particles contained in a downhole environment, with a composition comprising: a metallic composition, an inorganic oxide-based polymer, and a solvent; the contacting occurring in the presence of a fluid capable of decomposing the metallic composition.

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Номер записи: 4
07-02-2017 дата публикации

Systems and devices for sensing corrosion and deposition for oil and gas applications

Номер: US0009562844B2
Автор: Anusha Chilukuri, Othon R. Monteiro, CHILUKURI ANUSHA, MONTEIRO OTHON R, Chilukuri Anusha, Monteiro Othon R.
Принадлежит: Baker Hughes Incorporated, BAKER HUGHES INC

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.

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Номер записи: 5
02-01-2018 дата публикации

Devices and methods for detecting chemicals

Номер: US0009857498B2
Автор: Othon R. Monteiro, Anusha Chilukuri, Sankaran Murugesan, MONTEIRO OTHON R, CHILUKURI ANUSHA, MURUGESAN SANKARAN, Monteiro Othon R., Chilukuri Anusha, Murugesan Sankaran
Принадлежит: Baker Hughes Incorporated, BAKER HUGHES INC

Devices and methods for detecting chemicals are disclosed. A device configured for use in a wellbore includes a sensor including a quantum tunneling composite (QTC) material configured to exhibit a change in electrical resistance responsive to the sensor contacting a target chemical. The sensor includes electrical resistance measuring circuitry operably coupled to the QTC material and configured to measure the electrical resistance of the QTC material and output a sensor signal indicating the electrical resistance. A method comprises deploying the sensor into the wellbore, measuring the electrical resistance of the QTC material, and determining the presence of the target chemical responsive to detecting changes in the electrical resistance of the QTC material. Another method includes selecting at least one of the QTC material and an active material to interact with a target wellbore chemical to change the electrical resistance of the QTC material.

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Номер записи: 6
12-10-2017 дата публикации

PDC SENSING ELEMENT FABRICATION PROCESS AND TOOL

Номер: US20170292376A1
Автор: Sunil Kumar, Anthony A. DiGiovanni, Danny E. Scott, Hendrik John, Othon R. Monteiro, KUMAR SUNIL, DIGIOVANNI ANTHONY A, SCOTT DANNY E, JOHN HENDRIK, MONTEIRO OTHON R, Kumar Sunil, DiGiovanni Anthony A., Scott Danny E., John Hendrik, Monteiro Othon R.
Принадлежит:

A Polycrystalline Diamond Compact (PDC) cutter for a rotary drill bit is provided with an integrated sensor and circuitry for making measurements of a property of a fluid in the borehole and/or an operating condition of the drill bit. A method of manufacture of the PDC cutter and the rotary drill bit is discussed. 1. An earth-boring rotary drill bit , comprising:at least one polycrystalline diamond compact (PDC) cutter including:a base substrate;a cutting element coupled with the base substrate; andat least one transducer disposed within one of the base substrate and the cutting element, wherein the PDC cutter includes at least one channel to allow flow of a fluid into the PDC cutter and to the at least one transducer.2. The rotary drill bit of claim 1 , wherein the at least one transducer is disposed within the cutting element.3. The rotary drill bit of claim 1 , wherein the sensor at least one transducer includes a chemical field effect transistor.4. (canceled)5. The rotary drill bit of claim 1 , wherein the cutting element further comprises a sensing layer having the at least one transducer claim 1 , the sensing layer disposed on the base substrate and surrounded by the cutting element.6. The rotary drill bit of claim 5 , wherein the at least one transducer further comprises an array of transducers.7. The rotary drill bit of claim 1 , wherein the array of transducers includes a plurality of nanotubes.8. The rotary drill bit of claim 1 , wherein the cutting element includes a source of radioactive material claim 1 , and the at least one transducer is configured to detect the source of radioactive material.9. The rotary drill bit of claim 8 , wherein the at least one transducer includes a gamma ray sensor.10. The rotary drill bit of claim 8 , wherein the at least one transducer includes a neutron sensor.11. The rotary drill bit of claim 8 , wherein the source of radioactive material is disposed within a nanotube.12. The rotary drill bit of claim 1 , wherein the at ...

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Номер записи: 7
07-02-2017 дата публикации

Chemiresistive sensors for downhole tools

Номер: US0009562430B1
Автор: Othon R. Monteiro, MONTEIRO OTHON R, Monteiro Othon R.
Принадлежит: Baker Hughes Incorporated, BAKER HUGHES INC

A method of detecting an analyte includes vaporizing at least a portion of a fluid within a wellbore, passing the vaporized fluid adjacent a chemiresistive sensing element coupled to a drill string within the wellbore and sensing a resistivity of the chemiresistive sensing element. A sensor for detecting an analyte includes an expansion device for vaporizing a portion of a fluid within a wellbore, a chemiresistive sensing element configured to contact the vaporized fluid within the wellbore and a controller configured to pass a current through the chemiresistive sensing element and calculate a resistance of the chemiresistive sensing element in contact with the gaseous portion of the fluid. An earth-boring tool may include a bit body coupled to a drill string and the sensor.

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Номер записи: 8
15-12-2016 дата публикации

WELLBORES INCLUDING CARBON QUANTUM DOTS, AND METHODS OF FORMING CARBON QUANTUM DOTS

Номер: US20160363693A1
Автор: Sankaran Murugesan, Othon R. Monteiro, Valery N. Khabashesku, MURUGESAN SANKARAN, MONTEIRO OTHON R, KHABASHESKU VALERY N, Murugesan Sankaran, Monteiro Othon R., Khabashesku Valery N.
Принадлежит:

A system for determining at least one property of at least one fluid in at least one subterranean formation comprises a fluid delivery system configured and positioned to deliver a fluid into at least one of at least one subterranean formation and a wellbore extending through the at least one subterranean formation. The system comprises a radiation source within the wellbore, the radiation source configured to generate excitation radiation, carbon quantum dots disposed in the fluid, and a detector within the wellbore, the detector configured to measure at least one fluorescence property of the carbon quantum dots. Related methods of determining a property of a wellbore and methods of forming the carbon quantum dots are also disclosed. 1. A system for determining at least one property of at least one fluid in at least one subterranean formation , the system comprising:a fluid delivery system configured and positioned to deliver a fluid into at least one of at least one subterranean formation and a wellbore extending through the at least one subterranean formation;a radiation source within the wellbore, the radiation source configured to generate excitation radiation;carbon quantum dots comprising a carbon core, the carbon core exhibiting at least one fluorescence property disposed in the fluid; anda detector within the wellbore, the detector configured to measure the at least one fluorescence property of the carbon core.2. The system of claim 1 , wherein the carbon quantum dots comprise undoped carbon quantum dots.3. The system of claim 1 , wherein at least some of the carbon quantum dots are doped with one or more of nitrogen claim 1 , boron claim 1 , silicon claim 1 , or phosphorus and at least some of the carbon quantum dots are doped with another of nitrogen claim 1 , boron claim 1 , silicon claim 1 , or phosphorus.4. The system of claim 1 , wherein the carbon quantum dots comprise a first group of carbon quantum dots and at least a second group of carbon quantum ...

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Номер записи: 9
11-07-2013 дата публикации

Method of controlling reservoir particles using electrolytic composite materials

Номер: US20130175037A1
Автор: James Crews, Othon R. Monteiro
Принадлежит: Baker Hughes Inc

A method of reducing the presence of particles in a downhole environment, comprising contacting sediment particles contained in a downhole environment, with a composition comprising: a metallic composition, an inorganic oxide-based polymer, and a solvent; the contacting occurring in the presence of a fluid capable of decomposing the metallic composition

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Номер записи: 10
24-03-2016 дата публикации

METHODS OF COATING SUBSTRATES WITH COMPOSITE COATINGS OF DIAMOND NANOPARTICLES AND METAL

Номер: US20160083860A1
Автор: Khabashesku Valery N., Mazyar Oleg A., Monteiro Othon R.
Принадлежит:

A method of coating a substrate includes dispersing functionalized diamond nanoparticles in a fluid comprising metal ions to form a deposition composition; disposing a portion of the deposition composition over at least a portion of a substrate; and electrochemically depositing a coating over the substrate. The coating comprises the diamond nanoparticles and a metal formed by reduction of the metal ions in the deposition composition. 1. A method of coating a substrate , comprising:dispersing functionalized diamond nanoparticles in a fluid comprising metal ions to form a deposition composition;disposing a portion of the deposition composition over at least a portion of a substrate; andelectrochemically depositing a coating over the substrate, the coating comprising the diamond nanoparticles and a metal formed by reduction of the metal ions in the deposition composition.2. The method of claim 1 , wherein electrochemically depositing a coating over the substrate comprises forming a coating having a thickness of at least about 10 μm.3. The method of claim 2 , wherein electrochemically depositing a coating over the substrate comprises forming a coating having a thickness in a range from about 50 μm to about 100 μm.4. The method of claim 1 , wherein electrochemically depositing a coating over the substrate comprises continuously forming the coating over the surface of the substrate.5. The method of claim 1 , wherein dispersing functionalized diamond nanoparticles in a fluid comprising metal ions comprises dispersing functionalized diamond nanoparticles having a particle size in a range from about 20 nm to about 1 μm.6. The method of claim 1 , wherein electrochemically depositing a coating over the substrate comprises electroless deposition of the metal onto a surface of the substrate.7. The method of claim 1 , wherein electrochemically depositing a coating over the substrate comprises electroplating the coating over the substrate.8. The method of claim 1 , wherein ...

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Номер записи: 11
02-04-2020 дата публикации

PDC SENSING ELEMENT FABRICATION PROCESS AND TOOL

Номер: US20200102823A9
Автор: DiGiovanni Anthony A., John Hendrik, Kumar Sunil, Monteiro Othon R., Scott Danny E.
Принадлежит:

A Polycrystalline Diamond Compact (PDC) cutter for a rotary drill bit is provided with an integrated sensor and circuitry for making measurements of a property of a fluid in the borehole and/or an operating condition of the drill bit. A method of manufacture of the PDC cutter and the rotary drill bit is discussed. 1. An earth-boring rotary drill bit , comprising:at least one polycrystalline diamond compact (PDC) cutter including:a base substrate;a cutting element coupled with the base substrate; andat least one transducer disposed within one of the base substrate and the cutting element, wherein the PDC cutter includes at least one channel to allow flow of a fluid into the PDC cutter and to the at least one transducer.2. The rotary drill bit of claim 1 , wherein the at least one transducer is disposed within the cutting element.3. The rotary drill bit of claim 1 , wherein the sensor at least one transducer includes a chemical field effect transistor.4. (canceled)5. The rotary drill bit of claim 1 , wherein the cutting element further comprises a sensing layer having the at least one transducer claim 1 , the sensing layer disposed on the base substrate and surrounded by the cutting element.6. The rotary drill bit of claim 5 , wherein the at least one transducer further comprises an array of transducers.7. The rotary drill bit of claim 1 , wherein the array of transducers includes a plurality of nanotubes.8. The rotary drill bit of claim 1 , wherein the cutting element includes a source of radioactive material claim 1 , and the at least one transducer is configured to detect the source of radioactive material.9. The rotary drill bit of claim 8 , wherein the at least one transducer includes a gamma ray sensor.10. The rotary drill bit of claim 8 , wherein the at least one transducer includes a neutron sensor.11. The rotary drill bit of claim 8 , wherein the source of radioactive material is disposed within a nanotube.12. The rotary drill bit of claim 1 , wherein the at ...

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Номер записи: 12
05-05-2016 дата публикации

COMPOSITIONS OF COATED DIAMOND NANOPARTICLES, METHODS OF FORMING COATED DIAMOND NANOPARTICLES, AND METHODS OF FORMING COATINGS

Номер: US20160122551A1
Автор: Agrawal Devesh Kumar, Falkner Joshua C., Khabashesku Valery N., Monteiro Othon R., Suresh Radhika
Принадлежит:

In a composition including a plurality of coated diamond nanoparticles, each diamond nanoparticle may have at least one silane functional group covalently bonded to a surface thereof. A method of forming coated diamond nanoparticles may include functionalizing surfaces of diamond nanoparticles with at least one of a fluorine-containing compound and an oxidant; dispersing the functionalized diamond nanoparticles in a solvent comprising a silane functional group; and forming covalent bonds between the silane functional group and the diamond nanoparticles. A method of forming a diamond coating may include depositing the diamond nanoparticles over a substrate. 1. A composition , comprising:a plurality of coated diamond nanoparticles, each diamond nanoparticle having at least one silane functional group covalently bonded to a surface thereof.2. The composition of claim 1 , wherein the plurality of coated diamond nanoparticles is dispersed in a solvent.3. The composition of claim 2 , wherein the solvent comprises water.4. The composition of claim 2 , wherein the solvent comprises an organic polar solvent.5. The composition of claim 2 , wherein the composition is substantially free of surfactants.6. The composition of claim 1 , wherein the plurality of coated diamond nanoparticles comprises a coating over a substrate.7. The composition of claim 6 , wherein the coating is bonded to an electrically conductive material over the substrate.8. A method of forming coated diamond nanoparticles claim 6 , comprising:functionalizing surfaces of diamond nanoparticles with at least one of a fluorine-containing compound and an oxidant;dispersing the functionalized diamond nanoparticles in a solvent comprising a silane functional group; andforming covalent bonds between the silane functional group and the diamond nanoparticles.9. The method of claim 8 , wherein functionalizing surfaces of diamond nanoparticles comprises exposing the diamond nanoparticles to fluorine gas.10. The method of ...

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Номер записи: 13
03-05-2018 дата публикации

DEVICES FOR DETECTING CHEMICALS

Номер: US20180120469A1
Автор: Chilukuri Anusha, Monteiro Othon R., Murugesan Sankaran
Принадлежит:

Devices and methods for detecting chemicals are disclosed. A device configured for use in a wellbore includes a sensor including a quantum tunneling composite (QTC) material configured to exhibit a change in electrical resistance responsive to the sensor contacting a target chemical. The sensor includes electrical resistance measuring circuitry operably coupled to the QTC material and configured to measure the electrical resistance of the QTC material and output a sensor signal indicating the electrical resistance. A method comprises deploying the sensor into the wellbore, measuring the electrical resistance of the QTC material, and determining the presence of the target chemical responsive to detecting changes in the electrical resistance of the QTC material. Another method includes selecting at least one of the QTC material and an active material to interact with a target wellbore chemical to change the electrical resistance of the QTC material. 1. A device configured for use in a wellbore , comprising:a body; and a quantum tunneling composite material comprising conductive particles dispersed in an insulating material, the quantum tunneling composite material configured to exhibit a change in an electrical resistance of the quantum tunneling composite material responsive to the sensor contacting a target wellbore chemical in a wellbore; and', 'a selectively permeable membrane at least partially enclosing the quantum tunneling composite material, the selectively permeable membrane configured to enable a first set of target wellbore chemicals to pass therethrough to contact the quantum tunneling composite material and to prevent a second set of target wellbore chemicals from passing therethrough; and, 'a sensor carried by the body, the sensor includingelectrical resistance measuring circuitry operably coupled to the quantum tunneling composite material and configured to measure the electrical resistance of the quantum tunneling composite material and output a ...

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Номер записи: 14
19-05-2016 дата публикации

System and Method for Enabling the Detection of Fluid Production and Stimulation of a Portion of a Wellbore

Номер: US20160138360A1
Автор: Bahrini Fahmi, Dolog Rostyslav, Flores Juan Carlos, Monteiro Othon R., Prieto Carlos A., Raja Pavan M.V.
Принадлежит:

A system and method to isolate a portion of a wellbore and to detect fluid production from the wellbore. The system includes first and second isolators connected to a tubing string. The isolators include memory shape elements positioned between sealing elements and mandrels that may be actuated from a first shape to a second shape to create a seal within the wellbore with the sealing elements. The system may include a sensor configured to detect production from the wellbore. A sensor may be configured to detect a pressure of the isolated portion of the wellbore. A port between the isolators may permit fluid communication to the portion of the wellbore isolated by the sealing elements. The memory shape elements may be actuated from the first shape to the second shape at a first temperature and may actuated back to the second shape at a second temperature 1. A system to detect fluid production from an isolated zone comprising:a tubing string;a first isolator connected to the tubing string, the first isolator including at least one first sealing element, a first mandrel, and at least one first memory shape element positioned between the at least one first sealing element and the first mandrel, wherein the at least one first memory shape element may be actuated between a first shape and a second shape to move the at least one first sealing element away from the first mandrel;a second isolator connected to the tubing string, the second isolator including at least one second sealing element, a second mandrel, and at least one second memory shape element positioned between the at least one second sealing element and the second mandrel, wherein the at least one second memory shape element may be actuated between a first shape and a second shape to move the at least one second sealing element away from the second mandrel; andwherein a portion of the wellbore is substantially isolated when the at least one first memory shape element and the at least one second memory shape ...

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Номер записи: 15
02-11-2017 дата публикации

Methods of using carbon quantum dots to enhance productivity of fluids from wells

Номер: US20170314388A1
Автор: Othon R. Monteiro, Sankaran Murugesan, Valery N. Khabashesku
Принадлежит: Baker Hughes Inc

Methods of determining a pH of a wellbore fluid within a wellbore in communication with a subterranean formation comprise introducing carbon quantum dots into a wellbore fluid, exposing the wellbore fluid to radiation from an electromagnetic radiation source, and measuring at least one fluorescence property of the carbon quantum dots within the wellbore fluid to determine a pH of the wellbore fluid. Related methods of determining a pH of a fluid within a wellbore extending through a subterranean formation are also disclosed.

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Номер записи: 16
17-10-2019 дата публикации

Systems and devices for sensing corrosion and deposition for oil and gas applications

Номер: US20190316896A1
Автор: Anusha Chilukuri, Othon R. Monteiro
Принадлежит: Baker Hughes Inc

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.

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Номер записи: 17
10-12-2015 дата публикации

DEVICES AND METHODS FOR DETECTING CHEMICALS

Номер: US20150355366A1
Автор: Chilukuri Anusha, Monteiro Othon R., Murugesan Sankaran
Принадлежит:

Devices and methods for detecting chemicals are disclosed. A device configured for use in a wellbore includes a sensor including a quantum tunneling composite (QTC) material configured to exhibit a change in electrical resistance responsive to the sensor contacting a target chemical. The sensor includes electrical resistance measuring circuitry operably coupled to the QTC material and configured to measure the electrical resistance of the QTC material and output a sensor signal indicating the electrical resistance. A method comprises deploying the sensor into the wellbore, measuring the electrical resistance of the QTC material, and determining the presence of the target chemical responsive to detecting changes in the electrical resistance of the QTC material. Another method includes selecting at least one of the QTC material and an active material to interact with a target wellbore chemical to change the electrical resistance of the QTC material. 1. A method of sensing a target chemical , the method comprising:deploying a sensor into a wellbore, the sensor comprising a quantum tunneling composite material configured to exhibit a change in an electrical resistance of the quantum tunneling composite material responsive to the presence of a target chemical proximate the sensor;measuring the electrical resistance of the quantum tunneling composite material;determining the presence of the target chemical in the wellbore responsive to detecting the change in the electrical resistance of the quantum tunneling composite material.2. The method of claim 1 , wherein detecting the change in the electrical resistance of the quantum tunneling composite material comprises detecting the change in the electrical resistance of the quantum tunneling composite material responsive to a change in a distance between conductive particles distributed in an insulating material of the quantum tunneling composite material.3. The method of claim 1 , wherein detecting the change in the ...

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Номер записи: 18
31-12-2015 дата публикации

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

Номер: US20150377765A1
Автор: Chilukuri Anusha, Monteiro Othon R.
Принадлежит:

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 ...

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Номер записи: 19
03-09-2019 дата публикации

Devices for detecting chemicals

Номер: US10401527B2
Автор: Anusha Chilukuri, Othon R. Monteiro, Sankaran Murugesan
Принадлежит: Baker Hughes Inc

Devices and methods for detecting chemicals are disclosed. A device configured for use in a wellbore includes a sensor including a quantum tunneling composite (QTC) material configured to exhibit a change in electrical resistance responsive to the sensor contacting a target chemical. The sensor includes electrical resistance measuring circuitry operably coupled to the QTC material and configured to measure the electrical resistance of the QTC material and output a sensor signal indicating the electrical resistance. A method comprises deploying the sensor into the wellbore, measuring the electrical resistance of the QTC material, and determining the presence of the target chemical responsive to detecting changes in the electrical resistance of the QTC material. Another method includes selecting at least one of the QTC material and an active material to interact with a target wellbore chemical to change the electrical resistance of the QTC material.

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Номер записи: 20
02-06-2020 дата публикации

Methods of coating substrates with composite coatings of diamond nanoparticles and metal

Номер: US10669635B2
Автор: Oleg A. Mazyar, Othon R. Monteiro, Valery N. Khabashesku
Принадлежит: Baker Hughes a GE Co LLC, Baker Hughes Holdings LLC

A method of coating a substrate includes dispersing functionalized diamond nanoparticles in a fluid comprising metal ions to form a deposition composition; disposing a portion of the deposition composition over at least a portion of a substrate; and electrochemically depositing a coating over the substrate. The coating comprises the diamond nanoparticles and a metal formed by reduction of the metal ions in the deposition composition.

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Номер записи: 21
01-01-2019 дата публикации

Compositions of coated diamond nanoparticles, methods of forming coated diamond nanoparticles, and methods of forming coatings

Номер: US10167392B2
Автор: Devesh K. Agrawal, Joshua C. Falkner, Othon R. Monteiro, Radhika SURESH, Valery N. Khabashesku
Принадлежит: Baker Hughes Inc

In a composition including a plurality of coated diamond nanoparticles, each diamond nanoparticle may have at least one silane functional group covalently bonded to a surface thereof. A method of forming coated diamond nanoparticles may include functionalizing surfaces of diamond nanoparticles with at least one of a fluorine-containing compound and an oxidant; dispersing the functionalized diamond nanoparticles in a solvent comprising a silane functional group; and forming covalent bonds between the silane functional group and the diamond nanoparticles. A method of forming a diamond coating may include depositing the diamond nanoparticles over a substrate.

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Номер записи: 22
07-04-2022 дата публикации

Systems for determining at least one condition proximate the system

Номер: US20220107170A1
Автор: Anusha Chilukuri, Othon R. Monteiro
Принадлежит: Baker Hughes Holdings LLC

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.

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Номер записи: 23
20-02-2024 дата публикации

Systems for determining at least one condition proximate the system

Номер: US11906282B2
Автор: Anusha Chilukuri, Othon R. Monteiro
Принадлежит: Baker Hughes Holdings LLC

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.

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Номер записи: 24
15-04-2015 дата публикации

Fluids for use with high-frequency downhole tools

Номер: EP2859060A1
Автор: Daniel R. Ellis, Othon R. Monteiro
Принадлежит: Baker Hughes Inc

A fluid may contain nanoparticles and a base fluid where the base fluid may be a non-aqueous fluid. The base fluid may be, but is not limited to a drilling fluid, a completion fluid, a production fluid, and/or a stimulation fluid. The fluid may have at least one property, such as but not limited to a relative dielectric constant ranging from about 5 to about 10,000, an electrical conductivity ranging from about 1x10 -6 S/m to about 1 S/m, and combinations thereof. The non aqueous fluid may be a brine-in-oil emulsion, or a water-in-oil emulsion, and combinations thereof. The addition of nanoparticles to the base fluid may modify the electrical properties of the fluid.

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Номер записи: 25
25-07-2017 дата публикации

Wellbores including carbon quantum dots, and methods of forming carbon quantum dots

Номер: US09715036B2
Автор: Othon R. Monteiro, Sankaran Murugesan, Valery N. Khabashesku
Принадлежит: Baker Hughes Inc

A system for determining at least one property of at least one fluid in at least one subterranean formation comprises a fluid delivery system configured and positioned to deliver a fluid into at least one of at least one subterranean formation and a wellbore extending through the at least one subterranean formation. The system comprises a radiation source within the wellbore, the radiation source configured to generate excitation radiation, carbon quantum dots disposed in the fluid, and a detector within the wellbore, the detector configured to measure at least one fluorescence property of the carbon quantum dots. Related methods of determining a property of a wellbore and methods of forming the carbon quantum dots are also disclosed.

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Номер записи: 26