ТЯГАЧ С ГУСЕНИЦАМИ ДЛЯ НЕОБСАЖЕННЫХ СКВАЖИН

Изобретение относится к области нефтяной и газовой промышленности, а именно к системам и способам транспортировки оборудования в скважине. Тягач может включать гусеничный узел, включающий множество катков и непрерывную гусеницу, расположенную с возможностью вращения вокруг катков. Электродвигатель может быть выполнен с возможностью вращения гусеницы вокруг катков. С противоположными концами гусеничного узла могут быть шарнирно соединены верхние и нижние рычаги, шарнирно соединенные с корпусом тягача. Может быть предусмотрен узел звеньев для приложения направленной наружу силы к гусеничному узлу для перемещения гусеничного узла в открытое положение и отвода гусеничного узла в закрытое положение. Для приведения в действие исполнительного рычага или узла звеньев может быть предусмотрен ходовой винт, соединенный со вторым электродвигателем, или шток, соединенный с гидравлической системой. Обеспечивает транспортировку инструментов в необсаженных скважинах для оценки пластов, работу при погружении ...

ГИДРАВЛИЧЕСКИЙ АГРЕГАТ

FIELD: mining. SUBSTANCE: invention relates to a downhole tool, comprising: a hydraulic assembly, an arm assembly, comprising a wheel, a hydraulic motor for rotating wheel, thereby driving downhole tool in a forward direction, and a hydraulic pump unit for simultaneous generation of a first and a second pressurised fluid. Arm assembly is movable between a retracted position and a projecting position in relation to tool housing. Downhole tool furthermore comprises an arm activation assembly for moving arm assembly between retracted position and projecting position. Hydraulic motor drives downhole tool in forward direction when arm assembly is in projecting position. Arm actuation assembly is in fluid connection with first pressurised fluid and hydraulic motor is in fluid connection with second pressurised fluid, a hydraulic control block for controlling pressure of first pressurised fluid having a first pressure and controlling a second pressure of second pressurised fluid. Hydraulic control block comprises a first sequential valve for controlling a sequence of retraction of arm assembly, a projection of arm assembly and a rotation of wheel. Sequential valve is fluidly connected with one of fluids and changes between an open and a closed position based upon pressure of other fluid. EFFECT: technical result is improved reliability of delivering downhole tool. 15 cl, 8 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 605 106 C2 (51) МПК E21B 23/14 (2006.01) E21B 4/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013147498/03, 29.03.2012 (24) Дата начала отсчета срока действия патента: 29.03.2012 (72) Автор(ы): ХАЛЛУНБЕК Йерген (DK) (73) Патентообладатель(и): ВЕЛЛТЕК А/С (DK) Приоритет(ы): (30) Конвенционный приоритет: R U 30.03.2011 EP 11160551.5 (43) Дата публикации заявки: 10.05.2015 Бюл. № 13 (45) Опубликовано: 20.12.2016 Бюл. № 35 2 6 0 5 1 0 6 (56) Список документов, цитированных в отчете о поиске: ...

СКВАЖИННЫЙ ПРИВОДНОЙ АГРЕГАТ, ИМЕЮЩИЙ РАСПОЛОЖЕННЫЙ В КОЛЕСЕ ГИДРАВЛИЧЕСКИЙ ДВИГАТЕЛЬ

Данное изобретение относится к скважинному приводному агрегату (11) для ввода в скважину, содержащему: корпус (51) приводного агрегата, рычажное устройство (60), выполненное с возможностью перемещения между убранным положением и выдвинутым положением относительно корпуса приводного агрегата, устройство (41) для приведения в действие рычагов, расположенное в корпусе приводного агрегата и предназначенное для перемещения рычажного устройства между убранным положением и выдвинутым положением, и колесное устройство (90), содержащее неподвижную часть (91) и вращающуюся часть (92). Причем неподвижная часть соединена с рычажным устройством или образует часть рычажного устройства и соединена с вращающейся частью с возможностью вращения. Колесное устройство содержит гидравлический двигатель, содержащий корпус (93) гидравлического двигателя и вращающуюся секцию (84), соединенную с вращающейся частью для вращения части колесного устройства. Также предложена скважинная система, содержащая указанный ...

КАБЕЛЬНАЯ СБОРКА УВЕЛИЧЕННОЙ ДЛИНЫ ДЛЯ ПРИМЕНЕНИЯ В УГЛЕВОДОРОДНЫХ СКВАЖИНАХ

FIELD: oil and gas industry. SUBSTANCE: invention relates to operating cables placed in hydrocarbon wells. The invention suggests a cable assembly for use in a hydrocarbon well of extended depth containing at least one well-head part and at least one bottom-hole part connected to each other. At that the well-head part of the cable has more tenslie strength in comparison with the bottom-hole part. Besides the well-head and bottom-hole parts of the cable have structural windings. Herewith quantity of structural windings in the bottom-hole part is less than quantity of structural windings in the well-head part per 30% at least. EFFECT: providing use of the cable in super-deep wells. 22 cl, 8 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 513 814 C2 (51) МПК E21B 47/12 (2012.01) H01B 11/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2009103151/03, 30.01.2009 (24) Дата начала отсчета срока действия патента: 30.01.2009 Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 10.08.2010 Бюл. № 22 (73) Патентообладатель(и): ШЛЮМБЕРГЕР ТЕКНОЛОДЖИ Б.В. (NL) (56) Список документов, цитированных в отчете о поиске: RU 2087929 C1, 20.08.1997. SU 781981 (54) КАБЕЛЬНАЯ СБОРКА УВЕЛИЧЕННОЙ ДЛИНЫ ДЛЯ ПРИМЕНЕНИЯ В УГЛЕВОДОРОДНЫХ СКВАЖИНАХ (57) Реферат: Изобретение относится к рабочим кабелям собой. При этом устьевая часть кабеля имеет по для размещения в углеводородных скважинах. существу большую прочность на разрыв по Техническим результатом является обеспечение сравнению с забойной. Кроме того, устьевая часть возможности использования кабеля в и забойная часть кабеля имеют структурные сверхглубоких скважинах. Предложена кабельная обмотки. Причем количество структурных сборка для использования в углеводородной обмоток забойной кабельной части меньше скважине увеличенной глубины, содержащая, по количества структурных обмоток устьевой меньшей мере, одну устьевую часть и, по меньшей кабельной части на, ...

ТЯГАЧ С ГУСЕНИЦАМИ ДЛЯ НЕОБСАЖЕННЫХ СКВАЖИН

... 1. Скважинный тягач, содержащий гусеничный узел, включающий вращаемую гусеницу, электродвигатель, обеспечивающий вращение гусеницы, погруженный в масло, систему компенсации, выполненную с возможностью поддержания масла под надлежащим давлением, для защиты погруженного двигателя от скважинного давления, нижний рычаг, имеющий первый конец, опертый на корпус тягача, и второй конец, соединенный с гусеничным узлом, верхний рычаг, имеющий первый конец, опертый на корпус тягача, и второй конец, соединенный с гусеничным узлом, и исполнительный рычаг, выполненный с возможностью перемещения гусеничного узла между открытым и закрытым положениями. 2. Скважинный тягач по п.1, в котором гусеница установлена с возможностью вращения вокруг множества катков, установленных на гусеничный узел. 3. Скважинный тягач по п.1, в котором гусеница включает множество катков. 4. Скважинный тягач по п.1, дополнительно включающий ходовой винт или шток, а исполнительный рычаг включает первый конец, шарнирно соединенный ...

ПОДАЮЩЕЕ УСТРОЙСТВО ДЛЯ СКВАЖИННОГО ИНСТРУМЕНТА И СПОСОБ ОСЕВОЙ ПОДАЧИ СКВАЖИННОГО ИНСТРУМЕНТА

1. Подающее устройство (3), предназначенное для перемещения вращающегося скважинного инструмента (4) в осевом направлении во время обработки части окружающего тела (12) трубы, отличающееся тем, что указанное подающее устройство (3) содержит несколько подающих колес (32), лежащих в плоскости, наклоненной относительно плоскости, перпендикулярной центральной оси указанного скважинного инструмента (5), причем указанные подающие колеса (32) установлены с возможностью перемещения между убранным нерабочим положением (I) и рабочим положением (II), в котором они упираются во внутреннюю поверхность стенки (121) тела (12) трубы, окружающего указанное подающее устройство (3).2. Подающее устройство (3) по п. 1, в котором предусмотрена подвеска (33) подающего колеса, соединенная с радиальной направляющей (34) и первым исполнительным механизмом (35), который при включении обеспечивает перемещение указанных подающих колес (32) с радиальной составляющей направления.3. Подающее устройство (3) по п. 2, в котором указанная радиальная направляющая (34) представляют собой наклонную плоскость.4. Подающее устройство (3) по п. 2, в котором указанная радиальная направляющая (34) представляет собой радиальный вырез в корпусе (31) подающего устройства.5. Подающее устройство (3) по п. 1, в котором указанное подающее устройство (3) и указанный скважинный инструмент (5) соединены друг с другом посредством трансмиссии (4), предназначенной для обеспечения скорости вращения скважинного инструмента (5), отличной от скорости вращения подающего устройства (3).6. Подающее устройство (3) по п. 1, в котором указанное подающее устройство (3) и указанный скважинный инструмент (5) установлены на вращающейся трубной колонне (2), на невращающейся трубной колонне (2′) ил РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК E21B 4/18 (13) 2014 137 625 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014137625, 28.02.2013 (71) Заявитель(и): ВЕСТ ПРОДАКШЕН ...

ПОРШНЕВАЯ ТЯНУЩАЯ СИСТЕМА, ИСПОЛЬЗУЕМАЯ В ПОДЗЕМНЫХ СКВАЖИНАХ

... 1. Поршневая тянущая система, содержащая:первую группу из первого и второго поршневых узлов, которые выполнены с возможностью герметично контактировать со стволом скважины; инасос, выполненный с возможностью перемещения первой текучей среды между первым кольцевым пространством, изолированным между первым и вторым поршневыми узлами, и вторым кольцевым пространством.2. Система по п. 1, в которой ствол скважины обложен обсадной трубой, причем первый и второй поршневые узлы герметично контактируют с внутренней поверхностью этой обсадной трубы.3. Система по п. 1, в которой, по меньшей мере, второй поршневой узел контактирует со стволом скважины с возможностью скольжения.4. Система по п. 1, в которой, по меньшей мере, второй поршневой узел контактирует с возможностью выборочного сцепления с трубчатой колонной, проходящей через второй поршневой узел.5. Система по п. 4, в которой трубчатая колонна содержит внутренний и наружный трубчатые элементы, причем между этими трубчатыми элементами образовано ...

СПОСОБ И СИСТЕМА ДЛЯ АВТОМАТИЧЕСКОЙ ОПЕРАЦИИ РАЗБУРИВАНИЯ

... 1. Способ (50) разбуривания закупорки, находящейся внутри ствола скважины (W), включающий:обеспечение узла разбуривания (10) для использования в стволе скважины (W), при этом узел разбуривания включает разбуривающий модуль (12), имеющий двигатель (22), вращающий шарошечное долото (14), картридж электроники (26, 28) для управления двигателем и расчета значения крутящего момента на основе данных, полученных от двигателя; по меньшей мере один толкающий модуль (16, 18) для сцепки со стволом скважины и обеспечения проталкивающего усилия по стволу скважины для придания узлу разбуривания движения в направлении шарошечного долота; при этом картридж электроники дополнительно сконфигурирован для управления по меньшей мере одним модулем и расчета значения толкающего усилия по меньшей мере для одного модуля;установление заданного значения крутящего момента для разбуривающего модуля и предельного значения толкающего усилия по меньшей мере для одного модуля (52);размещение узла разбуривания в стволе ...

НАПРАВЛЕННОЕ БУРЕНИЕ С ОДНОВРЕМЕННОЙ ПОДАЧЕЙ ЭЛЕМЕНТА ХВОСТОВИКА С ВОЗМОЖНОСТЬЮ КРЕПЛЕНИЯ ЗАЩЕЛКАМИ ДЛЯ МНОГОКРАТНЫХ СПУСКОПОДЪЕМНЫХ ОПЕРАЦИЙ

Изобретение предназначено для направленного бурения с одновременной подачей хвостовика с возможностью крепления защелками для многократных спускоподъемных операций. По мере бурения ствола скважины устанавливают каждую обсадную трубу и хвостовик, имеющие верхние и нижние внутренние защелочные соединения. Хвостовик, устанавливаемый под исходной обсадной трубой, содержит внешнее защелочное устройство, имеющее размеры, подходящие для соединения внутренними защелочными соединениями исходной обсадной трубы. Компоновка низа бурильной колонны может содержать верхнее и нижнее внешние защелочные устройства внутренней колонны для соединения с верхними и нижними внутренними защелочными соединениями устанавливаемого хвостовика. Такая организация позволяет подавать и устанавливать хвостовик с помощью компоновки низа бурильной колонны во время направленного бурения и временно подвешивать хвостовик от исходной обсадной трубы для замены компоновки низа бурильной колонны во время бурения. 2 н. и 18 з.п.

СКВАЖИННАЯ СИСТЕМА ДЛЯ ОТКАЧИВАНИЯ ЖИДКОСТИ

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 143 015 A (51) МПК E21B 43/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017143015, 28.06.2016 (71) Заявитель(и): Веллтек Ойлфилд Солюшнс АГ (CH) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ВАСКИС Рикарду Ревис (DK) 29.06.2015 EP 15174401.8; 06.07.2015 EP 15175551.9 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 29.01.2018 EP 2016/065008 (28.06.2016) (87) Публикация заявки PCT: WO 2017/001401 (05.01.2017) R U (54) СКВАЖИННАЯ СИСТЕМА ДЛЯ ОТКАЧИВАНИЯ ЖИДКОСТИ (57) Формула изобретения 1. Скважинная система (1) для откачивания жидкости (2), находящейся в затрубном пространстве (4) скважины (3) между промежуточной обсадной колонной (5) и эксплуатационной трубчатой металлической конструкцией (6), содержащая: - промежуточную обсадную колонну; - насос (7) у устья (8) скважины, выполненный с возможностью повышения давления в затрубном пространстве для вытеснения жидкости, находящейся в затрубном пространстве; - эксплуатационную трубчатую металлическую конструкцию, имеющую первый внутренний диаметр (ID1) и расположенную частично в промежуточной обсадной колонне с образованием таким образом затрубного пространства; - эксплуатационный пакер (9), расположенный между промежуточной обсадной колонной и эксплуатационной трубчатой металлической конструкцией; и - первый узел (10А, 10) откачивания жидкости и второй узел (10 В, 10) откачивания жидкости, каждый из которых содержит: - трубчатую часть (11), содержащую стенку (12), имеющую второй внутренний диаметр (ID2), наружную поверхность (14) и проход (15), причем упомянутая трубчатая часть выполнена с возможностью ее установки в качестве части эксплуатационной трубчатой металлической конструкции; и - обратный клапан (16), соединенный с наружной поверхностью и имеющий впускное Стр.: 1 A 2 0 1 7 1 4 3 0 1 5 A Адрес для переписки: 191002, Санкт-Петербург, а/я 5 2 0 1 7 1 4 3 0 1 5 (86) Заявка PCT: R ...

РЫЧАЖНЫЙ УЗЕЛ

1. Скважинный инструмент (11), вытянутый в продольном направлении, содержащий:- корпус (54) инструмента,- рычажный узел (60), выполненный с возможностью перемещения между втянутым положением и выдвинутым положением относительно корпуса инструмента, причем рычажный узел содержит рычажный элемент (61), соединенный одним концом с корпусом инструмента,- узел (40) активации рычага, расположенный в корпусе инструмента для перемещения рычажного узла между втянутым положением и выдвинутым положением, и- насос (18), обеспечивающий циркуляцию гидравлической текучей среды,причем рычажный узел содержит гидравлический механизм (23, 62), расположенный в соединении с рычажным элементом, и приточный канал (65) для текучей среды, выполненный в рычажном элементе, причем приточный канал для текучей среды соединен с возможностью передачи текучей среды с гидравлическим механизмом для подачи гидравлической текучей среды от насоса к гидравлическому механизму.2. Скважинный инструмент по п.1, в котором гидравлический механизм представляет собой гидравлический двигатель (23) или гидравлический цилиндр (62), а приточный канал для текучей среды соединен с возможностью передачи текучей среды с гидравлическим двигателем или гидравлическим цилиндром для подачи гидравлической текучей среды от насоса (18) к гидравлическому механизму.3. Скважинный инструмент по п.2, в котором рычажный узел содержит вращающуюся часть (26), соединенную с гидравлическим двигателем, причем вращающаяся часть приводится во вращение гидравлическим двигателем для продвижения скважинного инструмента в скважине (4).4. Скважинный инструмент по любому из пп.1-3, в котором в рычажном эл РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2013 147 725 A (51) МПК E21B 23/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2013147725/03, 29.03.2012 (71) Заявитель(и): Веллтек А/С (DK) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ХАЛЛУНБЕК Йерген (DK) 30.03.2011 EP 11160499.7 ...

Tool and method for placement of a component into a well

An apparatus and method is disclosed for insertion of a component into an oil or gas well. Typically, the well includes a cased hole section and may also include an uncased hole section. In some applications, the well deviates substantially from the vertical direction. The apparatus may include a tool member and an engagement mechanism mounted upon the tool member. The engagement mechanism is configured for selective frictional engagement to the cased hole section of the well. A piston is connected to the tool member and is configured for extension relative to the tool member. The component for insertion into the well may be a sand control screen, a perforating gun, or other device.

A drive system

Mud sensing hole finder (MSHF)

Maintenance and repair device

Tractor with improved valve system

A hydraulically powered tractor includes an elongated body, two gripper assemblies, at least one pair of aft and forward propulsion cylinders and pistons, and a valve system. The valve system comprises an inlet control valve, a two-position propulsion control valve, a two-position gripper control valve, two cycle valves, and two pressure reduction valves. The inlet control valve spool includes a hydraulically controlled deactivation cam that locks the valve in a closed position, rendering the tractor non-operational. The propulsion control valve is piloted on both ends by fluid pressure in the gripper assemblies. The propulsion control valve controls the distribution of operating fluid to and from the propulsion cylinders, such that one cylinder performs a power stroke while the other cylinder performs a reset stroke. Each end of the gripper control valve is piloted by a source of high-pressure fluid selectively admitted by one of the cycle valves. The gripper control valve controls the ...

Technique for deploying expandables

Apparatus for eliminating net drill bit torque and controlling drill bit walk

Gas fuel drilling torch

A drilling apparatus 10 for drilling boreholes in underground formations, comprising a tool body 10a, 10b, that can be positioned in a borehole where drilling is to take place; a gas burning torch having a nozzle 16; a supply of a fuel and a supply of an oxidising agent connected to the torch; and means for advancing the tool body through the borehole as drilling takes place. The gas torch can be an oxy-fuel torch or a plasma. A tractor may be used to advance the apparatus and an orientating mechanism 30 may be present to direct the torch in a desired direction.

Pipeline traction system

Puller-thruster downhole tool

Puller-thruster downhole tool

Connection mechanism

Apparatus for actuating a well tool and method for use of the same

Gripper assembly for downhole tractors

Internal tractor system for downhole tubular body

An internal tractor system is provided herein. The internal tractor system is useful for advancing and withdrawing a tubular body within a wellbore. Preferably, the wellbore includes a horizontal section, and the internal tractor system is used to advance a string of coiled tubing or a flexible jetting hose along the horizontal section. The internal tractor system generally includes an elongated carrier body. The carrier body defines a wall forming a plurality of radially-disposed prongs, and a passageway within the wall. The passageway is dimensioned to closely receive the tubular body along the length of the carrier body to prevent buckling. The internal tractor system also includes a wiring chamber housing electrical wires, data cables, or both within one of the plurality of prongs, and at least one pair of grippers residing within opposing prongs.

Downhole hydraulic jetting assembly

A downhole hydraulic jetting assembly is provided herein. The assembly is useful for steerably jetting multiple lateral boreholes into a subsurface formation from an existing parent wellbore of any inclination. The assembly is useful for single trip completions or recompletion through the placement of multiple lateral boreholes. The assembly includes an external system wherein coiled tubing and a whipstock member are run into a wellbore. The assembly further includes an internal system that is run into the wellbore housed within the external system, but which allows a nozzle at the end of the hose to be directed against a wellbore exit location after the whipstock member is located and set. A window may be formed through casing using the jetting hose and nozzle, followed by the formation of a lateral bore hole. The whipstock may be re-located and/or re-oriented for the jetting of additional casing exits and lateral boreholes in the same trip.

Downhole tractor comprising two or more hydraulic supply lines

Remote-control travelling robot for performing operations eg cutting within a pipe

PCT No. PCT/GB83/00094 Sec. 371 Date Nov. 29, 1983 Sec. 102(e) Date Nov. 29, 1983 PCT Filed Mar. 29, 1983 PCT Pub. No. WO83/03457 PCT Pub. Date Oct. 13, 1983.A remotely controllable travelling robot for operation inside a pipe or bore-hole has a tool mounting assembly (22) which is rotatable in support structure (14, 16) about a longitudinal axis. The support structure (14, 16) is mounted on a pair of skids (10, 12) by means of a hydraulically driven elevator mechanism including rams (32) mounted on the skids 10, 12 which lift the support structure (14, 16) to a required height so as to place the longitudinal axis approximately in coincidence with the axis of the pipe or bore-hole. A tool mounting head (80) forming part of the tool mounting assembly (22) is itself hydraulically powered for tilting about a transverse axis and for moving transversely relative to the longitudinal axis along a transverse bar (88) fixed in a tool mounting assembly casing 60.

Method and system for well and reservoir management in open hole completions as well as method and system for producing crude oil

According to the method for well and reservoir management in open hole completions, a data acquisition module (100) is advanced through the weilbore and acquires data providing information revealing fractures in the wall of the weilbore, and at least one blocking system (1002, 3000), on the basis of the data acquired, is placed in the weilbore (199, 2199, 3006) at the location of a fracture in the wall. The data acquisition module (100) is advanced by interaction with a fluid present in the weilbore, and the data acquisition module acquires data providing information on its own position in relation to the wall (3005) of the weilbore (199, 2199, 3006) and is controlled on the basis of said data in order to maintain a distance to the wall of the weilbore during its advancement. A system for well and reservoir management in open hole completions is further disclosed.

Traction apparatus

Additive manufacture system

A system (10) is provided for performing an operation on a subsea body (100), the system (10) comprises: a housing (20) configured to establish a sealed chamber around a section of the body (100); an environmental system configured to monitor and/or control an environment within the sealed chamber; and an operational tool (40) mounted to a positioning system (30) within the housing (20), wherein the operational tool (40) is configured to perform an additive manufacture operation on the body (100) within the sealed chamber. Also provided is a system (201) for performing an operation on an interior surface of a tubular body (200).

Apparatus and methods for installing casing in a borehole

Downhole hydraulic jetting assembly

The assembly includes an internal system which comprises a jetting hose and a jetting nozzle, and an external system comprising a first elongated tubular body defining an outer conduit, and a second elongated tubular body residing within the bore of the outer conduit and defining a jetting hose carrier. The jetting nozzle 1600 comprises a rotor body 1620 having one or more fluid discharge ports 1640, a stator body 1610, and wire-wrapped stator poles 1615 to induce rotation of the rotor body. The assembly is configured to (i) translate the jetting hose out of the jetting hose carrier and against the whipstock face by a translation force to a desired point, (ii) upon reaching the desired point, direct jetting fluid through the jetting hose and the connected jetting nozzle until an exit is formed, (iii) continue jetting forming a lateral borehole into the subsurface formation, and then (iv) pull the jetting hose back into the jetting hose carrier after a lateral borehole has been formed by ...

Apparatus for use in a tractor in a wellbore and methods

Method and apparatus for performing a survey of tubing which is stuck in a borehole, e.g. for determining a free point

An assembly for performing a survey of tubing which is stuck in a borehole is described, together with a related method and a device for use in the assembly. In various embodiments, the assembly has a tractor for advancing the assembly along the tubing on an inside thereof; at least one engager connected to the tractor, the engager being configured to couple the assembly to a wall of the tubing, such that a stimulus applied to the tubing, e.g. components of force or manipulation of the tubing, can be communicated to produce a response in a part of the assembly. A detector may detect the response when the assembly is coupled to the wall of the tubing, in order to produce data based on the response for determining a location at which the tubing may, or may not, be subjected to at least one operation for freeing the string or a portion thereof.

A pulling tool for use in a wellbore and/or tubing and a propulsion module of a pulling tool

The invention relates to a pulling tool for use in a wellbore or tubing for pulling cable. The pulling tool comprises a propulsion module (64) having a main section (1) and a propulsion arm (2) hinged to the main section (1). The propulsion arm includes a propulsion wheel (6, 37) with a gear system. An electric motor (8) drives the propulsion wheel (6, 37) via the gear system. The gear system may include a harmonic gear or a compound split ring epicyclic gear. The invention further comprises a propulsion module (64) of a pulling tool including such a gear system.

HYDRAULICALLY CLAIMANT TRACTOR

PROCEDURE FOR THE DISTANCE OF A HYDRATE PLUG FROM A FLOW LINE

BOREHOLE TOOL

Offshore coiled tubing system

The present invention relates to an offshore coiled tubing system for running a coiled tubing into a subsea well offshore, comprising a well comprising a well tubular metal structure having a top and an inner face, a blowout preventer (BOP) arranged in the top of the well tubular metal structure, and a sluice having a top part for entry of coiled tubing, the BOP being arranged between the well tubular metal structure and the sluice, the sluice having a sealing unit arranged in the top part of the sluice for sealing around the coiled tubing, a vessel comprising a deck, a coiled tubing reel comprising coiled tubing, the coiled tubing having a first end, and a first driving unit for assisting in driving the coiled tubing into/from the well, the first driving unit being configured to be movable in relation to the deck to compensate for heave motion of the vessel, and a second driving unit for assisting in driving the coiled tubing into/from the well, wherein the second driving unit is movable ...

Apparatus for actuating a well tool and method for use of same

Slickline conveyed debris management system

A wellbore cleanup tool is run on slickline. It has an onboard power supply and circulation pump. Inlet flow is at the lower end into an inlet pipe that keeps up fluid velocity. The inlet pipe opens to a surrounding annular volume for sand containment and the fluid continues through a screen and into the pump for eventual exhaust back into the water in the wellbore. A modular structure is envisioned to add debris carrying capacity. Various ways to energize the device are possible. Other tools run on slickline are described such as a cutter, a scraper and a shifting tool.

Well system

Internal tractor system for downhole tubular body

An internal tractor system is provided herein. The internal tractor system is useful for advancing and withdrawing a tubular body within a wellbore. Preferably, the wellbore includes a horizontal section, and the internal tractor system is used to advance a string of coiled tubing or a flexible jetting hose along the horizontal section. The internal tractor system generally includes an elongated carrier body. The carrier body defines a wall forming a plurality of radially-disposed prongs, and a passageway within the wall. The passageway is dimensioned to closely receive the tubular body along the length of the carrier body to prevent buckling. The internal tractor system also includes a wiring chamber housing electrical wires, data cables, or both within one of the plurality of prongs, and at least one pair of grippers residing within opposing prongs.

Torque member

The present invention relates to a downhole tool extending in a longitudinal direction, comprising a tool housing; an arm assembly movable between a retracted position and a projecting position in relation to the tool housing; an arm activation assembly arranged in the tool housing for moving the arm assembly between the retracted position and the projecting position, the arm activation assembly comprising a piston chamber extending in the longitudinal direction of the downhole tool, a piston member arranged inside the piston chamber and movable in the longitudinal direction of the downhole tool, and wherein the arm activation assembly further comprises a torque member comprising a first fluid channel for supplying hydraulic fluid from a pump to the arm assembly, the torque member being connected with the arm assembly and wherein the torque member is rotated by the movement of the piston member, whereby the arm assembly is moved. Furthermore, the invention relates to a tool string system ...

SLICKLINE CONVEYED SHIFTING TOOL SYSTEM

A shifting tool is run on slickline and has an on board power supply. Rotary motion of the motor is converted to linear motion of the shifting tool using a ball screw device. The grip is obtained with longitudinal motion of a grip linkage and an on board jar then can do the shifting. Alternatively a linear motor can be used to extend and retract the grip assembly and shift using the jar tool. Optionally the tool can be anchored and linear motion from the on board power source operating a motor can do the shifting.

PROPULSION UNIT FOR WELLBORE TRACTOR TOOL

A propulsion unit for a wellbore tool includes a tool body and at least one wheel section disposed along the tool body. The wheel section comprises a tractor pad movably coupled to a tractor housing coupled to the tool body. The tractor pad is movable only in a lateral direction with respect to the tool body. A wheel rotatably is supported in the tractor pad so as to contact a wall of a wellbore when the tractor pad is moved away from the tractor housing. An hydraulic motor is rotationally coupled to the wheel. The hydraulic motor comprises a displacement changing element operable to change displacement of the hydraulic motor. The unit comprises means for moving the tractor pad between an extended position and a retracted position.

SLICK LINE AND/OR FIBRE OPTIC CABLE PULLING WELLBORE AND/OR TUBING PULLING TOOL AND A PROPULSION MODULE

The present invention relates to a slick line and/or fibre optic cable pulling wellbore and/or tubing pulling tool including a propulsion module (64) having a main section (1 ) and a hinged propulsion arm (2). A propulsion wheel (6) with a gear system is supported in the propulsion arm. A gear system of the propulsion wheel (6) comprises an eccentric, internally toothed gear system with a fixed inner gear and a moving outer gear. The moving outer gear constitutes the propulsion wheel (6) of the pulling tool. An electric motor (8) drives the propulsion wheel (6) via the gear system. Also described is a propulsion module for such a pulling tool.

DEVICE FOR CENTRING AND/OR PULLING A TOOL IN A PIPELINE

The present invention relates to a device for centring and pulling a tool in a pipeline, the device comprising expanding arms, with each expanding arm comprises a wheel suitable for making contact with an inside wall of a pipeline, wherein each wheel comprises at least one magnetic element.

SEMI-AUTONOMOUS DOWNHOLE TAXI WITH FIBER OPTIC COMMUNICATION

A semi-autonomous downhole taxi with fiber optic communication is described. The taxi includes a housing configured to travel within a horizontal section of a wellbore. A docking station is detachably attached to the housing. The docking station is configured to couple to a wireline to pass the taxi through a vertical section of the wellbore. The docking station is configured to be detached from and re-attached to the housing. A fiber optic cable spool is attached to and carried by the housing. A fiber optic cable is wound on the fiber optic cable spool. The fiber optic cable mechanically connects the docking station and the housing. The fiber optic cable is configured to unspool from the fiber optic cable spool as the housing, detached from the docking station, travels through the horizontal section of the wellbore. The fiber optic cable is configured to pas data between the docking station and the housing. The data is associated with wellbore operations to be performed by the taxi in ...

AUTONOMOUS UNIT LAUNCHING SYSTEM FOR OIL AND GAS WELLS LOGGING, METHOD OF INSTALLATION AND UNINSTALLATION OF SAID AUTONOMOUS UNIT IN THE SYSTEM AND RESCUE SYSTEM

A launching system (100) for an autonomous unit RAU carrying a logging tool for oil and gas well logging is described, said system comprising a main body 15 provided with first and second control valves 13,14 respectively and draining valve 17, sensors 16 and End Cap 18 electrically connected to a control room for transmission of the data collected by the logging tool carried by the RAU, said End Cap 18 collecting data and charging the electrical battery of the autonomous unit RAU carrying said logging tool to be launched by said main body 15 and performing a schedule of logging tasks in the well; and connection 19 for wellhead. The method for installation and uninstallation of the autonomous unit in the said system as well as a rescue system for the said autonomous unit in case of hindered motion of the RAU for any reason are also described.

FRACKING SYSTEM WITH WIRELINE SHIFTED PORTS AND REAL-TIME ELECTRONIC MONITORING SYSTEM

A bridge plug deployed into a wellbore liner of a wellbore is described. The bridge plug includes a packing element and keys, which can be controllable expanded or retracted. The bridge plug is adapted to engage with a downhole tool and cause a sliding sleeve of the tool to open the tool port/s. The bridge plug is run-in on a wireline using a tractor that enables its displacement uphole or downhole. Also, the bridge plug is provided with sensors to monitor the operational parameters in the wellbore and communicate the measured parameters to the surface for enabling operators to monitor and control the downhole operation conditions.

PERFORATING GUN ASSEMBLY AND METHODS OF USE

In one aspect, the method comprises providing a perforating gun assembly having a first group of shaped charges on a first longitudinal portion of the assembly and a second group of shaped charges on a second longitudinal portion of the assembly. The orientations of the first and second groups are rotationally offset from one another around a longitudinal axis of the perforating gun assembly. The method comprises locating the perforating gun assembly in a wellbore with the first group of shaped charges adjacent a wall of the wellbore at a perforation location, and detonating the shaped charges to form a first perforation channel in the wellbore with a defined first fracture initiation point. The perforating gun assembly is translated in the wellbore to locate the second group of shaped charges orientedtowards a defined second fracture initiation point, at a desired axial position with respect tothe first fracture initiation point.

METHOD AND APPARATUS FOR PERFORMING A SURVEY OF TUBING WHICH IS STUCK IN A BOREHOLE, E.G. FOR DETERMINING A FREE POINT

An assembly for performing a survey of tubing which is stuck in a borehole is described, together with a related method and a device for use in the assembly. In various embodiments, the assembly has a tractor for advancing the assembly along the tubing on an inside thereof; at least one engager connected to the tractor, the engager being configured to couple the assembly to a wall of the tubing, such that a stimulus applied to the tubing, e.g. components of force or manipulation of the tubing, can be communicated to produce a response in a part of the assembly. A detector may detect the response when the assembly is coupled to the wall of the tubing, in order to produce data based on the response for determining a location at which the tubing may, or may not, be subjected to at least one operation for freeing the string or a portion thereof.

DIRECTIONAL DRILLING WHILE CONVEYING A LINING MEMBER, WITH LATCHING PARKING CAPABILITIES FOR MULTIPLE TRIPS

A method and system for directional drilling while conveying a liner, with latching parking capabilities for multiple trips, is disclosed. As the wellbore is drilled, each casing and liner is installed having upper and lower interior latch couplings. A liner to be installed below a parent casing includes an exterior latch assembly dimensioned for connection to the interior latch couplings of the parent casing. A bottom hole assembly may include upper and lower exterior inner string latch assemblies for connection to the upper and lower interior latch couplings of the liner to be installed. Such arrangement allows the liner to be conveyed and installed with the bottom hole assembly while directional drilling and for the liner to be temporarily hung from the parent casing for bottom hole assembly change-out while drilling. Float plugs dimensioned to be landed at lower liner interior latch couplings may be provided for cementing operations.

METHOD FOR RECOVERING TUBULAR STRUCTURES FROM A WELL AND A DOWNHOLE TOOL STRING

The invention relates to a method for recovering a tubular structure (3) from a well (1), wherein a so-called free point (4) is defined as the location (2) where the tubular structure (3) is stuck in the well (1). The method comprising steps of: i) providing a downhole tool string (100) comprising a pipe-severing tool (5) and an upper part (7) of the downhole tool string (100); ii) lowering the downhole tool string (100) into the tubular structure (3) to such a depth that the pipe-severing tool (5) is at the free point (4) of the tubular structure (3), and iii) triggering the pipe-severing tool (5) to severe said tubular structure (3) to release the free pipe (3u). Before the step of triggering the pipe-severing tool (5) to severe said tubular structure (3), the method comprises steps of releasing the pipe-severing tool (5) and subsequent withdrawing the upper part (7) of the downhole tool string (100) away from the free point (4) towards the surface over at least a predefined distance ...

DOWNHOLE TRACTOR WITH REDUNDANT MOTOR DRIVES WITH INDEPENDENT CIRCUIT BREAKERS

The invention is a downhole petroleum well tractor having a main body (0) connectable to an electrical conductor logging cable (5) from a surface high voltage DC power supply (50), characterized by said main body (0) comprising a common HV DC power line (4) provided with high-voltage DC power supplied from said electrical cable (5); two or more HV DC branch power lines (40) from said common HV DC power line (4), each said HV DC branch power line (40) feeding power to a HV motor drive electronic unit (21) for a drive motor (2); each said drive motors (2) driving one or more drive devices (6) for running on and along a wall in a well for moving said tractor; separate HV DC circuit breaker units (8) on each said HV DC branch power line (40), each said HVDC circuit breaker (8) unit comprising control means (82, 86, 88) arranged for monitoring a current (I) on said HV DC branch power line (40) and controlling a HV DC power switch (84) on said HV DC branch power line (40) to break said current ...

APPARATUS FOR USE IN A TRACTOR IN A WELLBORE AND METHODS

There is described a tractor for use in a wellbore, apparatus for use in the tractor, and related methods. In certain embodiments, the apparatus has a body, a drive wheel and a movable support for supporting the drive wheel. The support may be rotatably movable using an actuator such that the drive wheel can be extracted from the body and brought into engagement with a wall of the wellbore, and may be arranged to be offset from a central region of the apparatus for providing accommodation space for the actuator in the body.

DOWNHOLE TOOL, METHOD & ASSEMBLY

An apparatus (10) includes a traction member in the form of a roller (24) configured for mounting on a body (12) so as to permit rotation of the roller (24) relative to the body (12). The roller (24) is mountable on the body (12) so as to define a skew angle relative to a longitudinal axis (26) of the body (12). In use, the roller (24) engages a wall of a borehole or bore-lining tubular and the roller (24) urges the apparatus (10) along the wall of the borehole or bore-lining tubular on rotation of the as the roller (24) rotates on the body (12).

HYDRAULIC ASSEMBLY

The present invention relates to a downhole tool, comprising a hydraulic assembly, an arm assembly, the arm assembly comprising a wheel, a hydraulic motor for rotating the wheel, thereby driving the downhole tool in a forward direction, and a hydraulic pump unit for simultaneous generation of a first and a second pressurised fluid, characterised in that the arm assembly is movable between a retracted position and a projecting position in relation to the tool housing, and the downhole tool furthermore comprises an arm activation assembly for moving the arm assembly between the retracted position and the projecting position, and the hydraulic motor drives the downhole tool in the forward direction when the arm assembly is in the projecting position, the arm activation assembly being in fluid connection with the first pressurised fluid and the hydraulic motor being in fluid connection with the second pressurised fluid, a hydraulic control block for controlling the pressure of the first pressurised ...

DOWNHOLE TOOL AND METHOD

A method of manufacture and installation of a resizable, plastically deformable or crimpable elastomeric bearing collar (28) or stabilizer sleeve which can be installed over upset sections of rotary drilling and wellbore completion tubulars (12, 110, 112, 212) such as but not limited to subs, drill collars, drill pipe, wellbore casing, production liners and other drilling and production related tubulars that are run down-hole. In order to enable the reduction of rotational torque generated when directionally drilling and completing extended reach development (ERD) wells.

METHOD AND APPARATUS FOR CONVEYING A LOGGING TOOL THROUGH ANEARTH FORMATION

A conveyance apparatus for conveying at least one logging tool through an ea rth formation traversed by a horizontal or highly deviated borehole is disclosed . The conveyance apparatus comprises a pair of arcuate-shaped cams pivotally mount ed to a support member, means for biasing the arcuate surface of each cam into conta ct with the borehole wall, and actuators operatively connected to each cam. A logging t ool is attached to the conveyance apparatus. When either actuator is activated in a first d irection, the cam connected to the activated actuator is linearly displaced forward and the ar cuate surface of the cam slides along the borehole wall. When either actuator is activated i n a second direction, the activated actuator pulls the connected cam backwards and the biasing means thereby urges the arcuate surface of the cam to lock against the borehole wa ll. Once the cam is locked, further movement of the actuator propels both the conveyance appa ratus and the logging tool forward ...

WELLBORE TRACTOR

A wellbore tractor system (100, 600, 300) comprising at least one slip unit (123, 634, 311, 413) for alternately and releasably anchoring the system within a wellbore or within a tubular member, the system having a component (101, 651, 327, 418) intended to be moved continuously or stepwise along the axis of the wellbore. When the system has two slip units, they may be powered alternately and in relation to each other so that the system provides continuous motion. Each slip unit is alternately clamped to the wellbore wall and released for longitudinal movement with the axially-movable system component. The units are spaced apart from each other, and the component being moved, to which a payload (158, 651, 324) may be connected, is driven axially relatively to the clamped unit.

PULLER-THRUSTER DOWNHOLE TOOL

A method and apparatus for propelling a tool having a body within a passage. The tool includes a gripper including at least a gripper portion which can assume a first position that engages an inner surface of the passage and limits relative movement of the gripper portion relative to the inner surfac e. The gripper portion can also assume a second position that permits substantially free relative movement between the gripper portion and the inn er surface of the passage. The tool includes a propulsion assembly for selectively continuously moving the body of the tool with respect to the gripper portion while the gripper portion is in the first position. This allows the tool to move different types of equipment within the passage. For example, the tool advantageously may be used in drilling processes to provid e continuous force to a drill bit. This enables the drilling of extended horizontal boreholes. Other preferred uses for the tool include well completion, logging, retrieval, pipeline ...

AUTONOMOUS DOWNHOLE OILFIELD TOOL

An autonomous downhoIe oilfield tool having its own mobility and decision making capability so that it may be deployed in a downhole environment to monitor and control said environment by modifying operations of other devices and maintaining downhole structures.

CURRENT BOOST FOR WIRELINE POWERED TOOLS

A current booster includes a buck-type converter including an input node, an output node, an inductor connected in series between the input and output nodes, a first capacitor connecting between the output node and ground, a second capacitor connecting between the input node and ground, a first switch connected in series between the input node and the inductor, and a second switch connecting a node between the first switch and the inductor to ground. A controller is operatively connected to control switching of the first and second switches. The controller includes logic configured to drive switching of the first and second switches in a first mode to maintain voltage at the output node if current at the input node is below a set point, and in a second mode to maintain constant current at the input node if current at the input node reaches the set point.

Expandable ramp gripper

A gripper for use in a downhole tool is provided. The gripper can include an actuator, an engagement assembly, and an expandable assembly. The engagement assembly can comprise a leaf-spring like elongate continuous beam. The expandable assembly can comprise a linkage including a plurality of links. The linkage can be coupled to the actuator such that the actuator expands the expandable assembly which in turn expands the engagement assembly. In operation, during one stage of expansion radial forces are transmitted to the engagement assembly through both interaction of a rolling mechanism on the engagement assembly with the expandable assembly and pressure of the linkage assembly directly on an inner surface of the engagement assembly.

Subterranean well completion incorporating downhole-parkable robot therein

A subterranean well completion has a tubular structure in which a remote controlled robot is permanently disposed. The robot is self-propelled, programmable, receives instructions from and communicates data to the surface, and is adapted to receive power from a downhole source and perform a variety of well tasks such as, for example, positioning valves and other well tools and sensing the values of predetermined downhole parameters and relaying the sensed information to the surface. The robot, which is operable without physical intervention through the tubular structure to the robot, propels itself to a location in the tubular structure at which a desired well task is to be performed, performs the task and then parks itself in the tubular structure until another well task is to be performed by the robot.

AUTONOMOUS TRACTOR USING COUNTER FLOW-DRIVEN PROPULSION

Provided is a wellbore tractor and method for operating a well system. The wellbore tractor, in one aspect, includes a base member, and one or more turbines fixed to the base member for rotating the base member in a first rotational direction based upon a first direction of fluid flow. The wellbore tractor, according to this aspect, further includes one or more wellbore engaging devices radially extending from the base member, the one or more wellbore engaging devices contactable with a surface of a wellbore for displacing the base member and one or more turbines axially downhole as the one or more turbines rotate in the first rotational direction.

Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells

The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are described that provide for the efficient installation of a cemented steel cased well wherein the drill string and the drill bit are cemented into place during one single drilling pass down into the earth. Methods of operation are described wherein at least one geophysical parameter is measured with a geophysical parameter sensing member located within the drill string. A one-way cement valve is installed near the drill bit of the drill string that allows the cement to set up efficiently under ambient hydrostatic conditions while the drill string and drill bit are cemented into place during one single drilling pass into the earth.

Apparatus for actuating a well tool and method for use of same

An apparatus (60) for actuating a well tool (148) in a wellbore includes a downhole robot (62) that provides for locomotion within the wellbore (144). A pressure control member (64) having a deployed position is operably associated with the downhole robot (62). An engagement mechanism (66) is operably associated with the downhole robot (62) and releasably engages with the well tool (148) such that when the engagement mechanism (66) engages the well tool, the pressure control member (64) is in the deployed position and a differential pressure is created across the pressure control member (64), the downhole robot (62) transmits a longitudinal force to actuate the well tool (148).

EXPANDABLE RAMP GRIPPER

A gripper for use in a downhole tool is provided. The gripper can include an actuator, an engagement assembly, and an expandable assembly. The engagement assembly can comprise a leaf-spring like elongate continuous beam. The expandable assembly can comprise a linkage including a plurality of links. The linkage can be coupled to the actuator such that the actuator expands the expandable assembly which in turn expands the engagement assembly. In operation, during one stage of expansion radial forces are transmitted to the engagement assembly through both interaction of a rolling mechanism on the engagement assembly with the expandable assembly and pressure of the linkage assembly directly on an inner surface of the engagement assembly.

Dual function downhole tool

A wireline tool for sampling/jetting fluid in a well includes a pump with an opening, and a chamber for collecting/jetting fluid, the chamber having first and second ends. The chamber includes first and second pistons dividing the chamber into first, second and third chamber sections. The first and second pistons are attached to respective piston rods, and the rods are supported by respective supports. A first spring is provided between the first piston and its support and another spring is provided between the second piston and its support. When the pump operates, the pistons are forced in one direction, hence activating spring forces of the springs and allowing fluid to flow from one chamber section to another chamber section.

Method of forming lateral boreholes from a parent wellbore

A method of forming a lateral borehole in a pay zone located within an earth subsurface is provided. The method includes determining a depth of a pay zone in the earth subsurface, and then forming a wellbore within the pay zone. The method also includes conveying a hydraulic jetting assembly into the wellbore on a working string. The assembly includes a jetting hose carrier, and a jetting hose within the jetting hose carrier having a nozzle connected at a distal end. The method additionally includes setting a whipstock in the wellbore along the pay zone, and translating the jetting hose out of the jetting hose carrier to advance the nozzle along the face of the whipstock. The method then includes injecting hydraulic jetting fluid through the jetting hose and connected jetting nozzle, thereby excavating a lateral borehole within the rock matrix, and further injecting the fluid while further translating the jetting hose and connected nozzle along the face of the whipstock without coiling ...

EXPANDABLE STRUCTURE FOR DEPLOYMENT IN A WELL

An expandable structure for passive deployment in a well. The structure may be locked in a position determined by the inner dimensions of the well in which it is deployed. Practical uses for the structure may include production tubing or a host of other devices for affixing downhole with a final diameter as determined by the inner diameter of the well. Additionally, the structure may be configured for advancement to a targeted well location while in a collapsed state. Thus, upon deployment, subsequent structures may be advanced through the expanded/deployed structure. As such, affixed structures may be deployed downhole in both top-down and bottom-up fashions without concern over a prior deployed structure obstructing subsequent structure deployment downhole thereof.

Method of forming lateral boreholes from a patent wellbore

A method of forming a lateral borehole in a pay zone located within an earth subsurface is provided. The method includes determining a depth of a pay zone in the earth subsurface, and then forming a wellbore within the pay zone. The method also includes conveying a hydraulic jetting assembly into the wellbore on a working string. The assembly includes a jetting hose carrier, and a jetting hose within the jetting hose carrier having a nozzle connected at a distal end. The method additionally includes setting a whipstock in the wellbore along the pay zone, and translating the jetting hose out of the jetting hose carrier to advance the nozzle along the face of the whipstock.

Wellbore traction apparatus

A system for performing an operation within an elongated space

A system for performing an operation within a wellbore comprises a tool 4 configured for deployment within the wellbore, an insulated slickline 6 connected to the tool, and a winch 26 for hauling in and/or paying out the slickline. The system further comprises a winch controller 28 which is configured to receive information transmitted electrically from the tool along the slickline and to control the winch according to the received information. The tool may comprise a downhole tractor for advancing a further tool along the elongated space. The tool may comprise an electrical generator tool or a tool for performing a mechanical operation within the elongated space.

Articulated motor linkage in a tractor for a bottom hole slick-line assembly

A tractor assembly (508, fig 12) for moving a bottom-hole assembly (504, fig 12) supported by a slick-line (502, fig 12), the tractor comprising a power supply, a drive mechanism having rollers 704 which include exterior extending spirals 708. The rollers are retracted and extended by a linkage 720, 722, 724, 726, 728, 730 actuated by a first motor 744 to maintain contact with the wellbore and the rollers are driven by a second motor 710 using a drive system 714, 716, 718, 738, 740, 742 that articulates with the linkage. The tractor can preferably move the bottom-hole assembly in both directions. The tractor may include a control system to move the bottom-hole assembly when a reduction in tension in the slick-line is detected in a direction that increases the tension in the slick-line. The tractor may also include a drive mechanism including a peripheral seal and an onboard pump to move well fluid from one side of the seal to the other to propel the tractor.

Flexible extension for borehole logging instruments

The present invention relates to a system for moving instruments 5 through a passage 1 having a portion which is sharply inclined relative to the vertical. The system consists of a set of instruments mechanically linked via an extension 8 to a first end of an electrically powered displacement means 6. The extension 8 is a length of semi-rigid rod, of a composite material, which can be wound onto a reel, and incorporates at least one electric conductor. The present invention also relates to a method of implementing the system and to its application in sharply inclined oil wells and wells with side bores.

Electrically sequenced tractor

Device for Hydraulically operating a drive wheel of a wellbore tractor, e.g a motor, and related tractor, wellbore string, and method

A device for hydraulically operating a drive wheel of a wellbore tractor has in certain embodiments at least one cam, and a rotatable assembly arranged to be rotatable with respect to the cam about an axis of rotation. The rotatable assembly has at least one piston. The device also has a chamber and at least one supply port for supplying hydraulic fluid from the chamber to the piston for energizing the piston, the supply port being arranged to be moved between first and second positions relative to the cam. In the first position, the piston can connect to the supply port and be energized to impart force against the cam for producing forward rotation of the assembly. In the second position, the piston can connect to the supply port and be energized to impart force against the cam for producing reverse rotation of the assembly. Embodiments of a related distributor assembly, wellbore tractor, and method are also described.

Electro-hydraulically controlled tractor

A tractor (20) for moving within a borehole comprises body and two propulsion assemblies (24, 26) that are longitudinally movably engaged with the body. The tractor body has annular pistons (34, 36, 38, 40) configured to receive hydraulic thrust to propel the body longitudinally. Each propulsion assembly includes a gripper (42, 52) and propulsion cylinders (44, 46, 48, 50). The gripper has an actuated position in which the gripper limits relative movement between the gripper and the inner surface of the borehole, and a retracted position in which the gripper permits free relative movement between the gripper and the inner surface of a borehole. Each propulsion cylinder contains one of the pistons. The tractor includes a control assembly (30) having valves and hydraulic circuitry which control the sequencing of fluid distribution to the propulsion cylinders, and of the actuation and retraction of the grippers. A throttle valve (54) controls the fluid flowrate to the pistons.

A drive system

Open hole tractor with tracks

A downhole tractor (10) is provided that may be used in open or cased wells, and is also designed for use in open holes having a variety of soil/formation consistencies (e.g., soft, firm, rigid, etc.), varying diameters and non-uniform and irregular bore profiles. The tractor may include a track assembly (28) including a plurality of idler wheels (34) and a continuous track (30) rotatably disposed around the idler wheels. A motor (22) may be adapted to rotate the track around the idler wheels. Upper (36) and lower (38) arms may be pivotally connected to opposite ends of the track assembly and pivotally connected to a tractor housing (26). An actuator arm or link assembly (44) may be provided to impart an outward force to the track assembly to move the track assembly outwardly into an open position and a retracting force to retract the track assembly into a closed position. A rotatable screw (42) may be connected to a second motor, or a rod may be connected to a hydraulic system, to actuate ...

Open hole tractor with tracks

Tandem tractor assembly including multiple sondes

A tractor assembly 100 for possible use in moving a coiled tubing downhole includes two tractor units 125, 150 each having uphole and downhole sondes 130, 140, 160, 170. The sondes are driven into engagement with the bore wall by use of a hydraulically driven piston (115, fig 1). Both tractor units 125, 150 may be driven independently. Also claimed is a method of distributing load accommodated by a tandem tractor assembly, the method comprising hydraulically powering the uphole and downhole tractor units to obtain load capacities thereof and hydraulically balancing the load capacities to one another.

Puller-thruster downhole tool

A self-propelled tool 112 for moving through a passage comprises a body (204, Fig 2A), first and second gripper sections 222 and 207 spaced apart axially on the body, a first propulsion assembly 200 on the body operative under fluid pressure to move the first gripper section to an actuated position for engaging an inner surface of the passage 246 with the second gripper section retracted, so that the body is movable in the passage along a first stroke length, relative to the first gripper section, and a second propulsion assembly on the body operative under fluid pressure to move the second gripper section to an actuated position for engaging said inner surface of the passage, with the first gripper section retracted so that the body is movable in the passage along a second stroke length relative to the second gripper section. A fluid distributor 220 on the body in fluid communication with the first and second propulsion assemblies diverts fluid flow, to alternately actuate said first and ...

Wellbore traction apparatus

A wellbore traction apparatus 20 comprises traction elements, preferably wheels 14, for engagement with a wellbore wall 16, and drive means, preferably a motor 25. The apparatus 20 is selectably operable in a free-rolling mode in which the wheels 14 are configured to move freely of the motor 25; and a driven mode, in which operation of the motor 25 moves the apparatus 20 in relation to the wellbore. The apparatus is particularly suitable for deploying a tool string in a wellbore. The motor 25 may be coupled and decoupled with the wheels 14 via a clutch mechanism. The apparatus 20 preferably includes at least one magnet 18 to maintain contact of the wheels 14 with the (metallic) wellbore wall 16. The motor 25 may be engaged with the wheels 14 when there is insufficient gravitational force for the apparatus 20 to freely roll down the wellbore.

System and method for use in measuring a property of an enviroment in, or adjacent to, and elongated space

PROPULSION UNIT FOR WELLBORE TRACTOR TOOL

Slickline conveyed bottom hole asembly with tractor

A bottom hole assembly is run into the wellbore on slickline with a tractor to assist in movement of the bottom hole assembly through a deviation in either direction. The tractor can have retractable drive components and can be responsive to tension in the slickline to turn it on and to avoid overrunning the slickline if driving out.

Downhole propulsion using deformable propulsion wheel

Bristle propelled tool

Steerable hydraulic jetting nozzle, and guidance system for downhole boring device

REMOTE-CONTROL TRAVELLING ROBOT FOR PERFORMING OPERATIONS EG CUTTING WITHIN A PIPE

System for traction inside pipes, with flexible reservoir and with motorized pump for hydraulic power

The present invention provides a pulling system essentially consisting of two sets of feet (11) and a hydraulic cylinder (15). Each set is positioned on one of the sides of the hydraulic cylinder (15). The two sets of feet (11) have a self-locking mechanism. The self-locking mechanism allows each set of feet to act preferentially on one side and exert powerful forces. The invention further provides a flexible reservoir (21) capable of equalizing the pressures inside and outside the medium, allowing the operation of a hydraulic system in an environment that is subjected to any pressure value, provided that it is within the operating range of the components. In addition, the maintenance of a closed circuit ensures that no fluid contamination occurs.

PROCEDURE AND SYSTEM FOR PERFORATING

Subterranean Jetting Tool

The present invention relates to a jetting tool and method useful for inserting coiled or stick tubing further into subterranean wells, to permit additional production capacity to be realized from the well. The tool is located near a distal end of the tubing and can be used to generate and insertion thrust that facilitates insertion of the tubing.

Gripper assembly for downhole tools

A gripper assembly for anchoring a tool within a downhole passage and for possibly assisting movement of the tool within the passage. The gripper assembly includes an elongated mandrel and flexible toes that can be radially displaced to grip onto the surface of the passage. The toes are displaced by the interaction of a driver slidable on the mandrel and a driver interaction element on the toes. In one embodiment, the toes are displaced by the interaction of rollers and ramps that are longitudinally movable with respect to one another. In another embodiment, the toes are displaced by the interaction of toggles that rotate with respect to the toes.

Expandable ramp gripper

A gripper for use in a downhole tool is provided. The gripper can include an actuator, an engagement assembly, and an expandable assembly. The engagement assembly can comprise a leaf-spring like elongate continuous beam. The expandable assembly can comprise a linkage including a plurality of links. The linkage can be coupled to the actuator such that the actuator expands the expandable assembly which in turn expands the engagement assembly. In operation, during one stage of expansion radial forces are transmitted to the engagement assembly through both interaction of a rolling mechanism on the engagement assembly with the expandable assembly and pressure of the linkage assembly directly on an inner surface of the engagement assembly.

Remote Controlled Vehicle

A method of directional drilling includes forming first and second pits on corresponding first and second sides of a barrier, forming a pilot bore from the first pit to the second pit, enlarging the pilot bore to a final bore, and extending a cable through the final bore between the first and second pits by attaching the cable to a remote controlled vehicle and driving the remote controlled vehicle through the final bore from one of the pits to the other pit. The method also includes pulling a pipeline through the final bore using the cable.

Tool and method for placement of a component into a well

An apparatus and method is disclosed for insertion of a component into an oil or gas well. Typically, the well includes a cased hole section and may also include an uncased hole section. In some applications, the well deviates substantially from the vertical direction. The apparatus may include a tool member and an engagement mechanism mounted upon the tool member. The engagement mechanism is configured for selective frictional engagement to the cased hole section of the well. A piston is connected to the tool member and is configured for extension relative to the tool member. The component for insertion into the well may be a sand control screen, a perforating gun, or other device.

Device and a system and a method of examining a tubular channel

The invention relates to a device for examining a tubular channel, the device comprising a three-way valve, buoyancy means, pressure means, a vent line, at least one sensor and computation means; wherein the three-way valve controls the fluid flow between the pressure means and the buoyancy means and between the buoyancy means and the vent line; the computation means is communicatively coupled to the at least one sensor and adapted to generate a control signal based on data received from the at least one sensor; and wherein the pressure means is fluidly coupled to the buoyancy means via the three-way valve such that a fluid may flow from the pressure means to the buoyancy means or from the buoyancy means to the surroundings of the device via the vent line; and wherein the computation means is communicatively coupled to the three-way valve and controls said three-way valve via the control signal. Thereby, the invention is able to examine e.g. oil wells containing obstructions such as wash-outs and/or side tracks and/or non-linear parts in open hole completions of the well.

Apparatus and system and method of measuring data in a well extending below surface

The present invention relates to a system for measuring data in a well extending below surface, said system comprising a body having a longitudinal axis and a front end and a rear end; locomotion means; control means adapted to control direction and/or speed of the locomotion means; said control means being controllable from the surface. Thereby is achieved that a body may be remotely controlled from the surface e.g. the entrance of an oil well.

Modular downhole tool

The present invention relates to a downhole tool extending in a longitudinal direction, comprising a tool housing; an arm assembly pivotally mounted about a pivot point fixed in relation to the tool housing and movable between a retracted position and a projecting position in relation to the tool housing; an arm activation assembly for moving the arm assembly between the retracted position and the projecting position, the arm activation assembly being arranged inside the tool housing and having a first end face and a second end face adapted for being connected with the end faces of other arm activation assemblies; wherein the arm activation assembly comprises: a piston housing having a piston chamber extending in the longitudinal direction of the downhole tool and comprising: a first piston housing part, a second piston housing part removably connected to the first piston housing part, a piston member arranged inside the piston housing and connected with the arm assembly, the piston member being movable in the piston housing in the longitudinal direction of the downhole tool.

Fail-safe spring

The present invention relates to a downhole tool extending in a longitudinal direction, comprising a tool housing; an arm assembly movable between a retracted position and a projecting position in relation to the tool housing; an arm activation assembly for moving the arm assembly between the retracted position and the projecting position; wherein the arm activation assembly comprises: a piston housing comprising a piston chamber, said piston chamber extending in the longitudinal direction of the downhole tool, a piston member arranged inside the piston chamber and engaged with the arm assembly to move the arm assembly between the retracted position and the projecting position, the piston member being movable in the longitudinal direction of the downhole tool and having a first piston face and a second piston face, the piston member being able to apply a projecting force on the arm assembly by applying a hydraulic pressure on the first piston face moving the piston in a first direction, and a spring member applying a spring force to move the piston in a second direction opposite the first direction. Furthermore, the invention relates to a downhole system.

Downhole driving unit having a hydraulic motor with a planetary gearing system

The present invention relates to a downhole driving unit ( 11 ) for insertion into a well, comprising a driving unit housing ( 51 ), a hydraulic motor ( 23 ) comprising a hydraulic motor housing ( 93 ), a wheel assembly ( 90 ) comprising a stationary part ( 91 ) and a rotational part ( 92 ), the stationary part being connected with the driving unit housing and being rotatably connected with a rotational part, the wheel assembly comprising a wheel ring ( 99 ) for contacting an inner wall in the well and connected with or forming part of the rotations part. The wheel assembly further comprises the hydraullic motor ( 23 ) so that the stationary part and the rotational part constitute the hydraulic motor housing, the hydraulic motor comprising a rotatable section ( 84 ) connected with the rotational part for rotating part of the wheel assembly. Furthermore, the wheel assembly comprises a planetary gearing system ( 95 ) comprised in the hydraulic motor housing and the hydraulic motor comprises a rotatable section driving the wheel ring through the planetary gearing system. The invention furthermore relates to a downhole system comprising the driving unit and to use of such driving unit.

Downhole driving unit having a hydraulic motor in a wheel

The present invention relates to a downhole driving unit (11) (for insertion into a well, comprising a driving unit housing (51), an arm assembly (60) movable between a retracted position and a projecting position in relation to the driving unit housing, an arm activation assembly (41) arranged in the driving unit housing for moving the arm assembly between the retracted position and the projecting position and a wheel assembly (90) comprising a stationary part (91) and a rotational part (92), the stationary part being connected with or forming part of the arm assembly and being rotatably connected with a rotational part. The wheel assembly comprises a hydraulic motor comprising a hydraulic motor housing (93) and a rotatable section (84) connected with the rotational part for rotating part of the wheel assembly. Furthermore, the present invention relates to a downhole system comprising said driving unit and to use of such driving unit.

Multi-Run Retrievable Battery Pack for Electronic Slickline Tools

A downhole tool assembly includes a downhole tool and an anchor. The anchor is positionable at a downhole work site and includes a wet-connect port for engaging a battery pack. The tool operates until the battery runs low on power, when a low battery power alert is activated. The tool may be anchored at the work site while the battery is disconnected and retrieved to the surface for replacement. One or more charged batteries are then deployed and connected to the tool without having to remove the tool from the worksite or reposition the tool. The tool may be coupled to a wireline cable or a slickline cable or coiled tubing having a conductive wire for delivering low-voltage power to the tool. While the low-voltage power may not be adequate to operate the tool at full load, the power may be used to charge the tool during downtime.

Autonomous downhole robotic conveyance platform

A modular mobility platform has extendable and retractable tractor treads for engaging the walls of a downhole environment. The extendable and retractable tractor treads allow the platform to successfully navigate longitudinally through the downhole environment. The platform is composed of a plurality of different modules removably interconnected together longitudinally. Each module has at least one specific function, such as sensing, navigation, mobility, control, communication, power, or a combination thereof. The platform has longitudinally-directed detectors for detecting the forward or reverse direction through which the platform is to travel. A front end of the platform having a sensor at the forward end thereof articulates to navigate the mobility platform laterally through splits in the downhole environment. A system and method use the modular mobility platform.

Guidance System For A Downhole Boring Device

A hydraulic jetting assembly is provided herein. The jetting assembly includes a jetting hose, with a jetting nozzle at its distal end. The jetting nozzle comprises a tubular stator body having a fluid discharge slot, and a tubular rotor body residing within a bore of the stator body. The jetting nozzle has one or more bearings residing between the stator body and the surrounding rotor body to accommodate relative rotational movement. The jetting nozzle includes a proximal end configured to sealingly connect to an end of a jetting hose, and to receive a high pressure jetting fluid. Preferably, the nozzle has an outer diameter that is equivalent to or slightly larger than an outer diameter of the jetting hose. Preferably, the jetting assembly has at least three actuator wires configured to induce a controlled bending moment at its distal end, thereby providing for a steerable downhole tool. Jetting collars may be placed along the jetting hose to overcome drag force.

TRANSLATABLE EAT SENSING MODULES AND ASSOCIATED MEASUREMENT METHODS

A system of translatable electro acoustic technology (EAT) modules for deployment along an oil or gas wellbore casing comprises: a wireline/slickline optical distributed acoustic sensing (DAS) cable deployed from the surface into the casing and connected to a surface interrogator; a tractor attached to the downhole end of the wireline/slickline optical distributed acoustic sensing (DAS) cable; and one or more EAT sensing modules that can be coupled to or decoupled from the wireline/slickline optical distributed acoustic sensing (DAS) cable at pre-selected locations and can either be coupled to or decoupled from the casing of the wellbore or be allowed to reposition along the wellborn casing, wherein the one or more EAT sensing modules can conduct multiple measurements and communicate the results via the wireline/slickline optical distributed acoustic sensing (DAS) cable to the surface interrogator. 1. A system of translatable electro acoustic technology (EAT) modules for deployment along an oil or gas wellbore casing comprising:a. a wireline/slickline optical distributed acoustic sensing (DAS) cable deployed from the surface into the casing and connected to a surface interrogator;b. a tractor attached to the downhole end of the wireline/slickline optical distributed acoustic sensing (DAS) cable;c. one or more EAT sensing modules that can be coupled to or decoupled from the wireline/slickline optical distributed acoustic sensing (DAS) cable at pre-selected locations and can either be coupled to or decoupled from the casing of the wellbore or be allowed to reposition along the wellbore casing; andd. wherein the one or more EAT sensing modules can conduct multiple measurements and communicate the results via the wireline/slickline optical distributed acoustic sensing (DAS) cable to the surface interrogator system.2. The system of translatable electro acoustic technology (EAT) modules for deployment along an oil or gas wellbore casing of wherein one or more of the EAT ...

System and methodology for mechanically releasing a running string

A technique facilitates selectively disengaging a running string from a lateral tube assembly. The running string comprises a running sub which is engageable with the lateral tube assembly. The running string further comprises a window finder which is positioned to extend into a main bore casing window when the running string is deployed downhole with the lateral tube assembly. Additionally, the running string comprises an extension sub which is coupled to the window finder. The extension sub is selectively extensible to disengage the window finder from the main bore casing prior to release of the running sub from the lateral tube assembly via a release force applied through the running string.

MOBILITY PLATFORM FOR EFFICIENT DOWNHOLE NAVIGATION OF ROBOTIC DEVICE

A modular mobility platform has extendable and retractable tractor treads for engaging the walls of a downhole environment. The extendable and retractable tractor treads allow the platform to successfully navigate longitudinally through the downhole environment. The platform is composed of a plurality of different modules removably interconnected together longitudinally. Each module has at least one specific function, such as sensing, navigation, mobility, control, communication, power, or a combination thereof. The platform has longitudinally-directed detectors for detecting the forward or reverse direction through which the platform is to travel. A system and method use the modular mobility platform. 1. A mobility platform capable of traveling in a downhole environment , comprising:a sensor module configured to detect a feature of the downhole environment;a computing module configured to determine a first width of an upcoming portion of the downhole environment from the feature; anda drive module having extendable and retractable tractor treads; control the drive module to extend or retract the tractor treads to have a second width less than a first width to fit the mobility platform in the upcoming portion, and', 'control the drive module to drive the tractor treads to move the mobility platform in the upcoming portion., 'wherein the computing module is further configured to2. The mobility platform of claim 1 , wherein the sensor module claim 1 , computing module claim 1 , and drive module are interconnected.3. The mobility platform of claim 2 , wherein the sensor module claim 2 , computing module claim 2 , and drive module are removably interconnected.4. The mobility platform of claim 1 , wherein each of the sensor module claim 1 , computing module claim 1 , and drive module have housings that are substantially cylindrical with a respective module longitudinal axis.5. The mobility platform of claim 4 , wherein the sensor module claim 4 , computing module claim 4 ...

Lateral propulsion apparatus and method for use in a wellbore

A lateral propulsion apparatus positioned onto a drillstring comprising a tubular housing, venturi nozzles, an impeller, and flow ports. The apparatus utilizes both the venturi effect as well as rotational forces to cause wellbore fluid to travel from an area of high pressure near a lower end toward an area of lower pressure near an upper end urging the apparatus further into a non-vertical wellbore.

DOWNHOLE INTERVENTION AND COMPLETION DRONE AND METHODS OF USE

In one example, an apparatus includes a body, a propulsion system configured to move the body in a forward direction and in a reverse direction, and a reusable sealing and isolation element connected to the body and configured to be deployed so as to selectively seal and isolate sections or stages in a wellbore when the apparatus is disposed in the wellbore. The reusable sealing element may be selectively employed to isolate, and de-isolate, a portion of the wellbore, such as in connection with a perforation process for example. 1. An apparatus , comprising:a body;a propulsion system configured to move the body in a forward direction and in a reverse direction; anda reusable sealing and isolation element connected to the body and configured to be deployed so as to selectively seal and isolate sections or stages in a wellbore when the apparatus is disposed in the wellbore.2. The apparatus as recited in claim 1 , wherein the apparatus comprises an autonomous drone.3. The apparatus as recited in claim 1 , wherein the propulsion system comprises:a power source;one or more extendible/retractable propulsion systems, wherein one of the propulsion systems comprises a motor and one or more wheels disposed on an outer portion of the body; anda gear box that connects the motor to the wheels.4. The apparatus as recited in claim 3 , wherein the power source comprises one or more rechargeable batteries configured to be wirelessly charged downhole.5. The apparatus as recited in claim 3 , wherein the power source comprises rechargeable batteries.6. The apparatus as recited in claim 1 , wherein the apparatus is self-propelled.7. The apparatus as recited in claim 1 , wherein the body is articulated.8. The apparatus as recited in claim 1 , further comprising one or more hardware processors and non-transitory storage media carrying instructions that are executable by the one or more hardware processors to cause the seal to expand and retract according to a specified schedule.9. The ...

Tractor Communication/Control and Select Fire Perforating Switch Simulations

Apparatus and methods for controlling and communicating with one or more tools in a downhole tool string including a tractor, an auxiliary tractor tool, a logging tool, a safety sub, a release mechanism, a unit containing sensors for monitoring downhole conditions, a setting tool, and a perforating gun. Control and communication are accomplished by sending signals from the surface to control switches in the control units on the tool, with redundant switches for safety, to state machines in the respective control units, each state machine returning a signal verifying switch status to the surface. The state machine need not return a signal including a unique identifier.

METHOD AND APPARATUS OF INTELLIGENT DOWNHOLE MULTI-FUNCTION INFLATABLE SYSTEM FOR OIL AND GAS WELLS

An inflatable multifunctional downhole tool includes a body having an outer shell and a threaded connection at an axial end of the body, at least one pressurized container disposed inside the outer shell, the pressurized container containing compressed gas, a plurality of floatation chambers fluidly connected through connection lines to the at least one pressurized container, a dissolvable plug positioned along each of the connection lines between the floatation chambers and the at least one pressurized container, and a tool sub threadably connected to the threaded connection of the body. 1. A downhole tool , comprising:a body comprising an outer shell and a threaded connection at an axial end of the body;at least one pressurized container disposed inside the outer shell, the pressurized container containing compressed gas;a plurality of floatation chambers fluidly connected through connection lines to the at least one pressurized container, wherein the floatation chambers are held inside the outer shell before being inflated and after being inflated;a dissolvable plug positioned along each of the connection lines between the floatation chambers and the at least one pressurized container; anda tool sub threadably connected to the threaded connection of the body.2. The downhole tool of claim 1 , further comprising a plurality of wheels positioned around the outer shell.3. The downhole tool of claim 2 , further comprising at least one battery and a motor positioned inside the body and operatively connected to the plurality of wheels.4. The downhole tool of claim 1 , wherein the tool sub comprises a fishing tool.5. The downhole tool of claim 1 , wherein the tool sub comprises a logging tool.6. The downhole tool of claim 1 , further comprising at least one hook positioned at an opposite axial end of the body from the threaded connection.7. The downhole tool of claim 1 , further comprising a wireless communication system.8. The downhole tool of claim 1 , further ...

Sensor transportation apparatus and guide device

A sensor transportation apparatus to convey a sensor assembly through a wellbore. The apparatus comprising has an engagement structure to connect the sensor transportation apparatus to the sensor assembly, and one or more wheels arranged to rotate about an axis of rotation substantially perpendicular to a longitudinal axis of the sensor assembly when the transportation apparatus is connected to the sensor assembly. An orientation structure defining a form having a transverse outline which has a rotational centre, wherein the rotational centre is offset from a centroidal axis of the elongate sensor assembly.

Well restimulation downhole assembly

A downhole assembly is provided for use in well restimulation, the assembly having a plurality of perforation blocking sleeves each comprising an anchoring device; one or more expandable members secured to an external surface of each of the perforation blocking sleeves; a running tool for transporting the plurality of perforation blocking sleeves and expandable members within a perforated well casing; a running tool driver for moving the running tool, perforation blocking sleeves and expandable members within the well casing; and one or more sensors to detect perforation clusters within the well casing. The anchoring device is used to secure each sleeve over a perforation cluster within the well casing. Each perforation blocking sleeve defines a flow channel in fluid communication with the principal flow channel of the well casing. The running tool is remotely uncoupled from the blocking sleeves in sequence, and the running tool and the running tool driver are retractable through the flow channel of each the perforation blocking sleeves.

Dual function downhole tool

The present invention relates to a multifunctional downhole wireline tool for fluid sampling and fluid jetting in a well downhole, comprising a pump having a pump opening, and a fluid chamber for collecting a sample of fluid or storage of fluid to be jetted, the fluid chamber having a first chamber end connected with the pump opening and a second chamber end having a chamber opening, wherein the fluid chamber has a chamber wall and comprises a first piston and a second piston dividing the fluid chamber into a first chamber section, a second chamber section and a third chamber section, the first piston being connected with a first end of a first piston rod, the second piston being connected with a first end of a second piston rod, a first support configured to support the first piston rod, a second support configured to support the second piston rod, and a first spring provided between the first piston and the first support and another first spring provided between the second piston and the second support, so that when the pump provides a pressure difference over the pistons, the pistons are forced in one direction, hence activating a spring force of the first springs and allowing the fluid to flow from one chamber section to another chamber section. The present invention further relates to a downhole system for fluid sampling and fluid jetting in a well downhole and to a sampling method and a jetting method using a multifunctional downhole wireline tool according to the present invention.

Pipeline Pulling Tool and a Method of Actuating Such a Tool

Disclosed is a pipeline pulling tool having an elongate housing. First and second roller wheel sections have at least two freely rotating roller wheels extending out from a sidewall of the housing. An attachment for a tool string is fixed to one of the roller wheel sections. A main section with a retractable propulsion wheel and at least one actuator for actuating the propulsion wheel between an extended position, out from the sidewall of the housing, and a retracted position, inside the housing, is located between the first roller wheel section and the second roller wheel section. A method of actuating a pipeline pulling tool is also disclosed.

Transformer in-situ inspection vehicle with a cage hull

An inspection device for use in a fluid container includes at least one thrust device, at least one ballast device and a cage which carries the at least one thrust device and the at least one ballast device. The cage includes at least two bars. Each bar provides an opening, the openings forming a cage cavity to carry the at least one thrust device and the at least one ballast device.

Advanced rapid logging system

A logging system for a tubular includes: a rail system comprising a plurality of rails and mounted to a surface of the tubular; a logging tool carrier connected to the rail system; and a logging tool disposed on the logging tool carrier. The logging tool is deployed on the logging tool carrier connected to the rail system along the tubular to a targeted position along the tubular and then retrieved from the wellbore. During deployment of the logging tool, the logging tool acquires a plurality of logging data.

Wellbore tool assembly

A tool string arrangement () for displacement in a deviating wellbore () by a wireline operated tractor (), said tool string arrangement () comprises a clean-out arrangement (), the clean-out arrangement () comprises a rotational motor () provided with electrical energy through a wireline (). The tool string arrangement () comprises a perforation arrangement () positioned between the wireline operated tractor () and the rotational motor (). A method for using the tool string arrangement () is described. 1. A tool string arrangement for displacement in a deviating wellbore by a wireline operated tractor , said tool string arrangement comprises:{'b': '21', 'a clean-out arrangement, the clean-out arrangement comprises a rotational motor provided with electrical energy through a wireline (),'}the tool string arrangement further comprises a perforation arrangement positioned between the wireline operated tractor and the rotational motor.2. The tool string arrangement according to claim 1 , wherein the perforating arrangement comprises at least one perforating gun unit.3. The tool string arrangement according to claim 1 , wherein the perforating arrangement comprises at least one puncher unit.4. The tool string arrangement according to preceding claims claim 1 , wherein the clean-out arrangement comprises a debris collector adjacent to the rotational motor.5. The tool string arrangement according to claim 1 , wherein the clean-out arrangement comprises a clean-out tool at a free end of the tool string arrangement claim 1 , the clean-out tool being driven by the rotational motor.6. The tool string arrangement according to claim 5 , wherein the clean-out tool comprises a rotational bit.7. A method for perforating a liner at a zone of interest within a deviating wellbore claim 5 , the method comprises:providing a tool string arrangement for displacement in a deviating wellbore by a wireline operated tractor, the tool string arrangement comprising a clean-out arrangement ...

Tractor Unit for a Wireline Logging Tool String

The disclosure relates to a carriage apparatus for carrying a tool string down a wellbore in a wireline logging, and an orientation apparatus and hole finder device for a wireline logging tool string. In some embodiments the carriage includes a protection structure which extends longitudinally around a wheel of the apparatus to thereby prevent a side of the wheel from contacting a wall of the wellbore. In some embodiments an orientation apparatus and hole finder are arranged so that the orientation apparatus orientates the hole finder device in the wellbore so that a tip of a nose section of the hole finder is elevated above a low side of the wellbore by a height and offset from and above a longitudinal axis of the tool string.

DISPLACEMENT MEASURING DEVICE AND SPEED MEASURING METHOD OF DRILLING TRACTION ROBOT

The invention relates to a displacement measuring device and a velocity measuring method of a drilling traction robot. The measuring device comprises a support bar, a stopper, a hydraulic, a piston of the hydraulic, a displacement sensor, a seal baffle, a waveguide, a magnetic ring, and a magnetic ring support plate. The invention can realize instant measurement and instant feedback of the velocity of the drilling traction robot and can provide data reference for automatic drilling of the drilling traction robot. 1123164105116127139158141718. A displacement measuring device of a drilling traction robot , comprising a support bar () , a stopper () , a hydraulic A () , a hydraulic B () , a piston () of the hydraulic A , a piston () of the hydraulic B , a displacement sensor A () , a displacement sensor B () , a seal baffle A () , a seal baffle B () , a waveguide A () , a waveguide B () , as magnetic ring A () , a magnetic ring B () , a magnetic ring support plate A () , a magnetic ring support plate B ( ) , a computer () and a drilling traction robot () , wherein:{'b': 3', '16', '4', '10', '1', '4', '19', '3', '1', '10', '20', '16', '1', '10', '1, 'the by A (), the hydraulic B (), the piston () of the hydraulic A and the piston () of the hydraulic B are coaxially mounted on the support bar (); the piston () of the hydraulic A is mounted in a cavity a () between the hydraulic A () and the support bar (); and the piston () of the hydraulic B is mounted in a cavity b () between the hydraulic B () and the support bar (), where n the piston () of the hydraulic B is fixedly connected with the support bar ();'}{'b': 9', '8', '8', '3', '6', '5', '6', '4', '2', '4', '3', '4, 'the magnetic ring A () and the magnetic ring support plate A () are fixedly connected through a screw, wherein the magnetic ring support plate A () is fixedly connected with the hydraulic A () through a screw: the seal baffle A () is connected with the displacement sensor A () through a thread, wherein ...

A pulling tool for use in a wellbore and/or tubing and a propulsion module of a pulling tool

The invention relates to a pulling tool for use in a wellbore or tubing for pulling cable. The pulling tool comprises a propulsion module ( 64 ) having a main section ( 1 ) and a propulsion arm ( 2 ) hinged to the main section ( 1 ). The propulsion arm includes a propulsion wheel ( 6, 37 ) with a gear system. An electric motor ( 8 ) drives the propulsion wheel ( 6, 37 ) via the gear system. The gear system may include a harmonic gear or a compound split ring epicyclic gear. The invention further comprises a propulsion module ( 64 ) of a pulling tool including such a gear system.

Downhole apparatus

An apparatus ( 100 ) for operation in a tubular channel ( 199 ), the apparatus comprising a first part and a second part connected to the first part, wherein the second part comprises a first electronic device adapted to generate a data signal and a first communications device for wirelessly transmitting the generated data signal via a wireless communications channel, wherein the first part comprises a second communications device for wirelessly receiving the transmitted data signal via said radio-frequency communications channel.

METHOD OF INSERTING A DEVICE IN A SUBSEA OIL WELL, METHOD OF REMOVING A DEVICE FROM A SUBSEA OIL WELL, AND SYSTEM FOR INSERTION AND REMOVAL OF A DEVICE IN A SUBSEA OIL WELL

The present invention relates to methods of inserting and removing tools and/or robots into/from inside subsea oil wells. In this scenario, the present invention provides a system for insertion and removal of a device () in a subsea oil well (), said system comprising (i) a WCT assembly () comprising a removable protective cap () and (ii) a WCT tool () connected to a receptacle () comprising within it the device (), wherein the WCT tool () is suitable for being inserted in the place where the protective cap () is coupled, wherein at least one of receptacle () and WCT tool () is able to be opened or closed, releasing the device () into the subsea oil well () or retaining same inside the receptacle (). The invention further provides methods of inserting and removing a device () into/from a subsea oil well (). 112-. (canceled)13. System for insertion and removal of a device in a subsea oil well , the system comprising:a wet Christmas tree (WCT) assembly comprising a removable protective cap; anda WCT tool connected to a receptacle comprising within it the device, wherein the WCT tool is suitable for being inserted in the place where the protective cap is coupled,wherein at least one of the receptacle and the WCT tool is able to be opened or closed, to release the device into the subsea oil well or to retain the device inside the receptacle.14. System according to claim 13 , wherein the device comprises at least one set of expandable arms.15. System according to claim 13 , wherein the device comprises a central body and four sets of expandable arms claim 13 , wherein two sets of expandable arms are positioned at a first end of the central body claim 13 , and two sets of expandable arms are positioned at a second end of the central body.16. System according to claim 14 , wherein each set of expandable arms comprises three expandable arms.17. System according to claim 14 , wherein each expandable arm is configured as an elastic body of the spring type.18. System according ...

Deployment of Downhole Sensing Devices

A downhole sensing device deployment control apparatus ( 10 ) includes means to control speed of the sensing device progressing within a borehole associated with a drilling operation. A mechanical, electrically powered and/or hydro-dynamic drag/damping means/device ( 12 ) can be provided as part of the control apparatus to control speed of deployment down the borehole. The drag device ( 12 ) can have a plurality of wheels or rollers to contact an internal bore of an inner pipe of a drill string. Rotation control means ( 24 ), ( 26 ) can be provided to control an amount of rotation and/or direction of rotation of the wheels or rollers relative to travel of the sensing device within the borehole. Valving ( 60 ) can be provided. A two stage (dual) flow/pressure control valve ( 100 ) can be provided. A sensing device (release 216 ) and downhole position latch ( 202 ) can be provided. The sensing device can be pumped into the borehole, such as by compressed air.

Device for Hydraulically Operating a Drive Wheel of a Wellbore Tractor, E.G. a Motor, and Related Tractor, Wellbore String, and Method

A device for hydraulically operating a drive wheel of a wellbore tractor has, in certain embodiments, at least one cam and a rotatable assembly arranged to be rotatable with respect to the cam about an axis of rotation. The rotatable assembly has at least one piston. The device also has a chamber and at least one supply port for supplying hydraulic fluid from the chamber to the piston for energizing the piston, the supply port being arranged to be moved between first and second positions relative to the cam. In the first position, the piston can connect to the supply port and be energized to impart force against the cam for producing forward rotation of the assembly. In the second position, the piston can connect to the supply port and be energized to impart force against the cam for producing reverse rotation of the assembly. Related distributor assembly, wellbore tractor, and method are also described. 1. A device for hydraulically operating a drive wheel of a wellbore tractor , the device comprising:at least one cam;a distributor; anda rotatable assembly arranged to be rotatable with respect to the at least one cam and the distributor about an axis of rotation, the assembly comprising at least one piston; an inner part;', 'an outer part arranged around the inner part; and', 'a chamber between the inner and outer parts;', 'either the inner part or the outer part comprising at least one supply port for supplying hydraulic fluid therethrough from the chamber to the at least one piston for energizing the at least one piston, the at least one supply port being arranged to be moved between first and second positions relative to the at least one cam;, 'the distributor comprisingwherein, in the first position, the at least one piston can connect to the at least one supply port and be energized to impart force against the at least one cam for producing forward rotation of the rotatable assembly, and in the second position, the at least one piston can connect to the at ...

Mud Sensing Hole Finder

A mud sensing hole finder comprising: a front steering wheel assembly, a rear wheel assembly, a sensor package, a corrosion package, a ported housing, and a tapered spring joint; wherein the mud sensing hole finder is capable of attachment to a wireline logging tool-string.

Gripper assembly for downhole tools

A gripper assembly for anchoring a tool within a downhole passage and for possibly assisting movement of the tool within the passage. The gripper assembly includes an elongated mandrel and flexible toes that can be radially displaced to grip onto the surface of the passage. The toes are displaced by the interaction of a driver slidable on the mandrel and a driver interaction element on the toes. In one embodiment, the toes are displaced by the interaction of rollers and ramps that are longitudinally movable with respect to one another. In another embodiment, the toes are displaced by the interaction of toggles that rotate with respect to the toes.

DOWNHOLE TRACTOR WITH BI-DIRECTIONAL WHEEL ASSEMBLY

A downhole tractor for operational use in well casing of a wellbore. The tractor comprising a tractor body, at least one actuator assembly, and at least one tractor wheel. The actuator assembly is actionable to shift the axis of rotation of the tractor wheel. The at least one tractor wheel includes at least one bifurcated tract having a leading and trailing edge for engaging the well casing. The at least one actuator assembly causes the at least one tractor wheel to switch from traversing a first vertical plane of the well casing to a second vertical plane of the well casing when actuated. 1. A downhole tractor for operational use in well casing of a wellbore , the tractor comprising: at least one actuator assembly actionable coupled to the tractor body; and', 'at least one tractor wheel coupled to the at least one actuator assembly;, 'a tractor body for tracking the well casing comprisingwherein the actuator assembly is actionable to shift the axis of rotation of the tractor wheel.2. The downhole tractor of wherein there is at least one tractor wheel per actuator assembly.3. The downhole tractor of wherein the at least one tractor wheel includes at least one serrated track for engaging the well casing.4. The downhole tractor of wherein the at least one tractor wheel includes at least one bifurcated tract having a leading and trailing edge for engaging the well casing.5. The downhole tractor of wherein the at least one actuator assembly causes the at least one tractor wheel to switch from traversing a first vertical plane of the well casing to a second vertical plane of the well casing when actuated.6. The downhole tractor of wherein the at least one actuator assembly in response to a first action causes the at least one tractor wheel to switch from traversing a first vertical plan of the well casing to a second vertical plane of the well casing and in response to a second action causes the at least one tractor wheel to switch from traversing the second vertical ...

Downhole tools and methods of controlling downhole tools

A downhole tool that has a plurality of arm assemblies. Each of the arm assemblies has an arm configured to expand and retract and an actuator. A hydraulic bus in fluid communication with the plurality of arm assemblies. A plurality of flow control devices. The flow control devices are configured to selectively isolate one or more arm assemblies of the plurality of arm assemblies from the hydraulic bus while maintaining the other arm assemblies of the plurality of arm assemblies in communication with the hydraulic bus.

Method of configuring subterranean components

A method for configuring a wellbore system includes guiding a tractor into a tubular string including an inner surface supporting more or more components to a select one of the plurality of components, deploying an element from the tractor into the tubular string, engaging the selected one of the plurality of components with the tractor, and changing a configuration of the selected one of the plurality of components with the element deployed from the tractor.

OPERATIONAL SYSTEM FOR LAUNCHING, MANAGING AND CONTROLLING A ROBOT AUTONOMOUS UNIT (RAU) FOR OPERATIONS IN OIL AND GAS WELLS AND METHOD OF WELL LOGGING

An operational system for an oil well wellhead for launching, managing and controlling a robotic autonomous unit (RAU) is described, said system comprising a) main body for housing said RAU, a lower safety valve, an upper safety valve, a connector for connection with the well head and an end cap for communication with said RAU; b) a PMD unit for programming, managing and data collection; and c) at the ground surface, a unit for remote transmission and reception, for receiving information collected by said PMD unit. The method for well logging with the aid of said operational system is also described. 1. An operational system for launching , managing and controlling a robot autonomous unit (RAU) for operations within a wellhead in oil and gas wells , wherein said system comprises:a mast for the launching and housing of a robot autonomous unit (RAU) for operations in oil and gas wells, said mast including a main body for housing the RAU, a lower safety valve, an upper safety valve, an end cap, and a connector for connection with the well head and said end cap for communication with said RAU;programming, management and data control (PMD) unit, the interface between said PMD unit and said RAU being performed by said end cap of said mast; andat the ground surface, a control central unit for remote transmission and reception for receiving the information collected by said PMD unit.2. The system according to claim 1 , wherein at the end of each operation claim 1 , the PMD unit performs acquisition of the data collected by said RAU by an operator claim 1 , programming a new operation for the RAU and uninstalling said PMD unit.3. The system according to claim 1 , wherein said PMD unit for programming claim 1 , managing and data collection is permanently connected to said end cap of mast.4. The system according to claim 1 , wherein said end cap of mast is connected to said RAU by an interface at the upper section of said RAU.5. The system of being operated comprising the ...

Deployable compliant mechanism

A mechanism is hereby disclosed that, when activated in the linear direction of its axis, will expand and contract radially. The novel nature of the device is that of compliant methods and materials used in its design. Compliant members, referred to as dyads, translate the motion and imply resistance in a single structure. Thus eliminating the need for separate members, hinges, pins, springs and the associated assembly. When these compliant dyads are combined in the novel configurations hereby disclosed, a device is created that expands (or contracts) in multiple directions from its primary axis of actuation. Furthermore, one or more actuation dyad sets could be arranged at various angles relative to the global vertical axis. The radial expansion/contraction can be 2D or 3D by adding more primary activation dyad sets. Such a device can be applied to many applications and industries. One such application is for gripping the inside of a tube or object for moving manually or in automation. The compliant nature of this device can be optimized to auto-adapt to the objects size and shape allowing for greater part variation and reduce manufacturing line change-over times. Other applications would include snap fit connections, spherical articulating joints, spinning cutting tools, speed limiting using friction and centrifugal force, braking rotational forces or transmitting it, automatic centering, expanding elastic bands in an assembly process, and stretching an opening for fitment. The design of this device is material friendly and can be made of plastic, composite and metals. It may be of a single monoform construction (created by molding, machining, or additive manufacturing) or made of multiple parts including pivots and different materials to achieve the desired articulation.

Method of using a downhole force generating tool

The disclosure of this application is directed to a downhole tool comprising a central element/member and a sleeve that is rotatably and orbitally disposed around the central element/member. The sleeve rotates and orbits around the central element/member responsive to fluid flowing through the downhole too. The disclosure is also related to a method of advancing the downhole tool in a well by flowing fluid through the tool.

Downhole force generating tool

The disclosure of this application is directed to a downhole tool comprising a central element/member and a sleeve that is rotatably and orbitally disposed around the central element/member. The sleeve rotates and orbits around the central element/member responsive to fluid flowing through the downhole too. The disclosure is also related to a method of advancing the downhole tool in a well by flowing fluid through the tool.

DEVICE FOR CENTRING AND/OR PULLING A TOOL IN A PIPELINE

The present invention relates to a device for centring and pulling a tool in a pipeline, the device comprising expanding arms, with each expanding arm comprises a wheel suitable for making contact with an inside wall of a pipeline, wherein each wheel comprises at least one magnetic element. 1. A device for centring and pulling a tool in a pipeline , the device comprising:expanding arms, with each expanding arm comprising a wheel suitable for making contact with an inside wall of a pipeline, wherein each wheel comprises at least one magnetic element.2. The device according to claim 1 , wherein the at least one magnetic element of each wheel is suitable for removing an oil film at the contact of the wheel with the inside wall of the pipeline.3. The device according to claim 1 , further comprising:at least one set of said expanding arms.4. The device according to claim 3 , further comprising:four sets of said expanding arms.5. The device according to claim 4 , wherein two sets of said expanding arms are positioned ahead of the tool and two sets of said expanding arms are positioned after the tool.6. The device according to claim 3 , wherein each set of said at least one set of said expanding arms comprises four expanding arms.7. The device according to claim 1 , wherein each expanding arm comprises an elastic element.8. The device according to claim 7 , wherein the elastic element is of the spring type.9. The device according to claim 7 , wherein each expanding arm comprises two elastic elements.10. The device according to claim 9 , wherein the two elastic elements are joined at a central point of the expanding arm.11. Device The device according to claim 10 , wherein the wheel is positioned at the central point.12. The device according to claim 9 , wherein each expanding arm further comprises a support for the wheel.13. The device according to claim 12 , wherein the two elastic elements of each expanding arm are fixed to the support of the respective expanding arm.14. ...

Tractor traction control for cased hole

Traction for a downhole tractor in a wellbore. A downhole propulsion system can provide a first traction module; a second traction module; and a controller configured to compare a first input parameter representing operation of the first traction module with a second input parameter representing operation of the second traction module. The controller can adjust a first output parameter of the first traction module and/or a second output parameter of the second traction module based on an input representing slip of the first traction module relative to the second traction module.

TRAVERSING ACROSS A WASH-OUT ZONE IN A WELLBORE

A wellbore tractor is capable of being positioned in a wellbore that includes a cased section, a first uncased section downhole of the cased section, and a second uncased section downhole of the first uncased section. The wellbore tractor is capable of self-propelling itself through the wellbore. An anchoring system is connected to the wellbore tractor. The anchoring system includes an appendage. When the wellbore tractor is in the cased section, the anchoring system is capable of extending the appendage from the cased section through the first uncased section into the second uncased section, anchoring the appendage in the second uncased section, and guiding the wellbore tractor from the cased section past the first uncased section and into the second uncased section. 1. A system comprising: a cased section extending from wellbore surface to a cased section depth;', 'a first uncased section having a larger diameter than the cased section, the first uncased section being positioned at a downhole end of the cased section; and', 'a second uncased section having a smaller diameter than the first uncased section and the cased section, the second uncased section positioned at the downhole end of the first uncased section; and, 'a wellbore tool positioned in a wellbore comprising an anchor configured to be retracted toward the wellbore tool when deactivated and extended from the wellbore tool when activated, the anchor configured to be extended from the cased section to the second uncased section when activated, the anchor configured to help the wellbore tool from the cased section to the second uncased section across the first uncased section; and', 'an extension tool coupled to the anchor, the extension tool configured to extend the anchor when the anchor is activated., 'an anchoring system connected to the wellbore tool comprising2. The system of claim 1 , wherein the extension tool comprises a pneumatic launcher housed within the wellbore tool.3. The system of claim 1 ...

Subterranean Well Torpedo System

Provided in some embodiments is a well torpedo system that includes a torpedo adapted to be advanced in a wellbore of a subterranean well. The torpedo including an integrated spool adapted to hold a fiber-optic (FO) umbilical including a FO line adapted to couple to a surface component, and an engine adapted to combust solid propellant to generate thrust to propel advancement of the torpedo in the wellbore.

Downhole system for unloading liquid

The present invention relates to a downhole system for unloading a liquid of a well in an annulus between an intermediate casing and a production tubular metal structure. The downhole system comprises the intermediate casing; a pump at a top of the well, configured to pressurise the annulus to displace the liquid in the annulus; the production tubular metal structure having a first inner diameter, arranged partly in the intermediate casing, thereby defining the annulus; a production packer arranged between the intermediate casing and the production tubular metal structure, and a first liquid unloading assembly and a second liquid unloading assembly, each comprising a tubular part having a wall having a second inner diameter, an outer face and an aperture, the tubular part being configured to be mounted as part of the production tubular metal structure; and a check valve connected with the outer face, the check valve having an inlet in fluid communication with the annulus and an outlet in fluid communication with the aperture. The downhole system further comprises a sliding sleeve arranged to slide along an inner face of the tubular part between an open position and closed position to open or close the aperture. Furthermore, the present invention relates to a liquid unloading method for unloading liquid of a well in an annulus between an intermediate casing and a production tubular metal structure.

Arm deployment system and method

Embodiments of the present disclosure include a deployment system including an actuator. The deployment system also includes an actuator arm coupled to the actuator. The deployment system further includes a crank rotatably coupled at a pivot point. The deployment system also includes a first link arm coupled to the actuator arm at a first end and the crank at a second end. The deployment system includes a second link arm coupled to the crank at a first end and a deployment arm at a second end, the second link arm transmitting rotational movement of the crank to the deployment arm.

Autonomous tractor using counter flow-driven propulsion

Provided is a wellbore tractor and method for operating a well system. The wellbore tractor, in one aspect, includes a base member, and one or more turbines fixed to the base member for rotating the base member in a first rotational direction based upon a first direction of fluid flow. The wellbore tractor, according to this aspect, further includes one or more wellbore engaging devices radially extending from the base member, the one or more wellbore engaging devices contactable with a surface of a wellbore for displacing the base member and one or more turbines axially downhole as the one or more turbines rotate in the first rotational direction.

Cement squeeze well tool

A well tool for cementing a portion of a well includes a cement retainer assembly and a capsule connected to the cement retainer assembly. The cement retainer assembly is configured to be disposed within a wellbore, and includes a ported sub and a cement retainer. The ported sub includes a port to flow cement out of the cement retainer assembly and into an annulus of the wellbore. The capsule includes a body defining an interior chamber of the capsule, where the interior chamber is configured to retain a fluid, and the capsule is configured to be disposed at a location within the wellbore and downhole of the cement retainer assembly.

Substantially neutrally buoyant and positively buoyant electrically heated flowlines for production of subsea hydrocarbons

A flowline is described for producing hydrocarbons from a subsea well that is comprised of a substantially neutrally buoyant tubular composite umbilical. The flowline may possess electrical heating apparatus within the tubular walls of the tubular composite umbilical to prevent waxes and hydrates from forming within the flowline and blocking the flowline. The electrical heating apparatus is comprised of at least one electrical conductor disposed within the tubular walls of the composite umbilical that conducts electrical current that is used to heat the tubular composite umbilical. The tubular composite umbilical that contains any produced hydrocarbons is substantially neutrally buoyant in the sea water adjacent to the subsea well. Positively neutrally buoyant tubular composite umbilical flowlines are also described.

High power umbilicals for electric flowline immersion heating of produced hydrocarbons

Methods and apparatus for installing electrically heated composite umbilicals within subsea flowlines containing produced hydrocarbons as immersion heaters to prevent waxes and hydrates from forming within the subsea flowlines that could block the flowlines. The electrically heated composite umbilicals may be installed, or retrofitted, into existing subsea flowlines. Such retrofitted electrically heated composite umbilicals provide an alternative for previously installed, but failed, permanent heating systems. A hydraulic pump installed on the distant end of an electrically heated composite umbilical also provides artificial lift for the produced hydrocarbons. Other electrically heated umbilicals used as immersion heaters are described. Such immersion heater systems may be removed from the well, repaired, and retrofitted into flowlines without removing the flowlines. Near neutrally buoyant electrically heated umbilicals are described which may be installed great distances into flowlines. Different methods of deploying the electrically heated umbilicals are also provided.

High power umbilicals for subterranean electric drilling machines and remotely operated vehicles

The method of providing in excess of 60 kilowatts of electrical power to the electrical motor of a subterranean electric drilling machine through a substantially neutrally buoyant composite umbilical containing electrical conductors to reduce the frictional drag on the neutrally buoyant umbilical. Drilling and casing subterranean monobore wells are contemplated to distances of 20 miles from a wellsite. For drilling applications, the umbilical possesses a drilling fluid conduit. The umbilical also possesses high speed data communications such as a fiber optic cable or a coaxial cable that is used in the feedback control of the downhole electric drilling motor. Such umbilicals are also useful to provide power to remotely operated vehicles for subsea well servicing applications.

Smart shuttles to complete oil and gas wells

Smart shuttles (306) are used to convey into the steel pipe (664) the various smart completion devices (188) necessary to complete the oil and gas well. Smart shuttles (306) may be attached to a wireline (302), a coiled tubing (656), or to a wireline installed within coiled tubing. Of particular interest is a wireline conveyed smart shuttle (306) that possesses an electrically operated internal pump (402) that pumps fluid from below the shuttle (306), to above the shuttle (306), that in turn causes the smart shuttle (306) to 'pump itself down' and into a horizontal wellbore. Similar comments apply to coiled tubing conveyed smart shuttles.

High power umbilicals for subterranean electric drilling machines and remotely operated vehicles

The method of providing in excess of (60) kilowatts of electrical power to the electrical motor (114) of a subterranean electric drilling machine through a substantially neutrally buoyant composite umbilical containing electrical conductors (116) to reduce the frictional drag on the neutrally buoyant umbilical. Drilling and casing subterranean monobore wells (104) are contemplated to distances of (20) miles from a wellsite. For drilling applications, the umbilical possesses a drilling fluid conduit. The umbilical also possesses high speed data communications such as a fiber optic cable or a coaxial cable that is used in the feedback control of the downhole electric drilling motor. Such umbilicals are also useful to provide power to remotely vehicles for subsea well servicing applications.

Поршневая тянущая система, используемая в подземных скважинах

Группа изобретений относится к оборудованию и операциям в подземных скважинах, а именно к поршневым тянущим системам, способам функционирования поршневой тянущей системы и способам продвижения трубчатой колонны в стволе скважины. Технический результат заключается в обеспечении продвижения трубчатой колонны в стволе скважины. Поршневая тянущая система содержит первую группу из первого и второго поршневых узлов, которые выполнены с возможностью герметично контактировать со стволом скважины, и насос, выполненный с возможностью перемещения первой текучей среды между первым кольцевым пространством, изолированным между первым и вторым поршневыми узлами, и вторым кольцевым пространством. Способ функционирования поршневой тянущей системы содержит приведение в герметичный контакт со стволом скважины первой группы из первого и второго поршневых узлов, сцепление второго поршневого узла со стволом скважины и перекачивание первой текучей среды из первого кольцевого пространства, образованного между первым и вторым поршневыми узлами, причем первый поршневой узел прикрепляют к трубчатой колонне, обеспечивая возможность перемещения трубчатой колонны через второй поршневой узел. Способ продвижения трубчатой колонны в стволе скважины содержит приведение в герметичный контакт первого и второго поршневых узлов со стволом скважины, причем каждый из первого и второго поршневых узлов содержит первое захватное устройство, которое выборочно сцепляют со стволом скважины, а второй поршневой узел содержит второе захватное устройство, которое выборочно сцепляют с трубчатой колонной. 3 н. и 73 з.п. ф-лы, 9 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 587 205 C2 (51) МПК E21B 19/086 (2006.01) E21B 23/10 (2006.01) E21B 4/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014135456/03, 13.02.2012 (24) Дата начала отсчета срока действия патента: 13.02.2012 (72) Автор(ы): ХЭЙ Ричард Т. (US) (73) Патентообладатель(и): ХАЛЛИБЕРТОН ...

Скважинная система с турбинным приводом

1. Скважинная система (1) для выполнения операции в скважине (2), содержащаявытянутую насосно-компрессорную колонну (3) для проведения текучей среды (4) в скважину;турбину (7), приводимую в действие текучей средой для приведения в действие вала (8);генератор (9), приводимый в действие турбиной посредством вала; иприводную секцию (5) с гидроприводом, содержащую насос (6), приводимый в действие текучей средой, подаваемой через вал для продвижения вперед в скважине приводной секции с гидроприводом и насосно-компрессорной колонны;причем система дополнительно содержит приводную секцию (10) с электроприводом, содержащую электродвигатель (11), питаемый от генератора для продвижения вперед в скважине приводной секции и насосно-компрессорной колонны, при этом приводная секция с гидроприводом расположена между генератором и приводной секцией с электроприводом.2. Скважинная система по п. 1, в которой генератор и электродвигатель электрически соединены посредством электрического соединения (17), проходящего через приводную секцию с гидроприводом.3. Скважинная система по п. 1 или 2, в которой текучая среда из насосно-компрессорной колонны подается к насосу приводной секции с гидроприводом по каналу (16) для текучей среды, проходящему через турбину и генератор.4. Скважинная система по п. 1 или 2, в которой приводная секция содержит движущие модули (18), контактирующие с внутренней поверхностью (27) скважины для продвижения вперед в скважине приводных секций.5. Скважинная система по п. 4, в которой движущие модули представляют собой модули с негидравлическим приводом, приводимые в действие электродвигателем.6. Скважинная система по п. 4, в которой движущие модули представляют собой колеса (39), РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 107 658 A (51) МПК E21B 23/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015107658, 09.08.2013 (71) Заявитель(и): ВЕЛЛТЕК А/С (DK) Приоритет(ы): (30) Конвенционный приоритет: 10.08. ...

Cordless well module

FIELD: oil and gas industry. SUBSTANCE: group of inventions is related to cordless well module and the well system comprising it. The module is configured for running in to a casing pipe inside the well, which has inner wall and inner diameter. The cordless well module comprises an electric motor, a pump and drivers to ensure movement of the cordless well module inside the casing pipe and at least one battery pack. At that the module comprises an expandable device having the central part and manufactured so that it may be expanded from the first diameter up to the second one. At that the expandable device has an opening in the central part and turbine interconnected with the above opening in order to transfer fluid for the battery recharging. EFFECT: increase in operational efficiency of the cordless well module. 15 cl, 8 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 576 419 C2 (51) МПК E21B 23/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013127862/03, 23.11.2011 (24) Дата начала отсчета срока действия патента: 23.11.2011 (72) Автор(ы): ХАЛЛУНБЕК Йерген (DK), ЛАРСЕН Еспер Олуф (DK) (73) Патентообладатель(и): ВЕЛЛТЕК А/С (DK) R U Приоритет(ы): (22) Дата подачи заявки: 23.11.2011 (30) Конвенционный приоритет: 24.11.2010 EP 10192382.9 (43) Дата публикации заявки: 27.12.2014 Бюл. № 36 (56) Список документов, цитированных в отчете о поиске: RU 2353751 C2, 27.04.2009. RU 2236549 C2, 20.09.2004. RU 2363831 C1, 10.08.2009. US 6454011 B1, 24.09.2002. US 2003234110 A1, 25.12.2003. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.06.2013 2 5 7 6 4 1 9 (45) Опубликовано: 10.03.2016 Бюл. № 7 EP 2011/070819 (23.11.2011) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 5 7 6 4 1 9 WO 2012/069540 (31.05.2012) Адрес для переписки: 191002, Санкт-Петербург, а/я 5, ООО "Ляпунов и партнеры" (54) БЕСПРОВОДНЫЙ СКВАЖИННЫЙ МОДУЛЬ (57) Реферат: Группа изобретений относится к расширяемое ...

Cordless well module

FIELD: oil and gas industry. SUBSTANCE: group of inventions is related to cordless well module and the well system comprising it. The module is configured for running in to a casing pipe inside the well, which has inner wall and inner diameter. The cordless well module comprises an electric motor, a pump and drivers to ensure movement of the cordless well module inside the casing pipe and at least one battery pack. At that the module comprises an expandable device having the central part and manufactured so that it may be expanded from the first diameter up to the second one. At that the expandable device has an opening in the central part and turbine interconnected with the above opening in order to transfer fluid for the battery recharging. EFFECT: increase in operational efficiency of the cordless well module. 15 cl, 8 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 576 419 C9 (51) МПК E21B 23/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) СКОРРЕКТИРОВАННОЕ ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ Примечание: библиография отражает состояние при переиздании (21)(22) Заявка: 2013127862/03, 23.11.2011 (24) Дата начала отсчета срока действия патента: 23.11.2011 (72) Автор(ы): ХАЛЛУНБЕК Йерген (DK), ЛАРСЕН Еспер Олуф (DK) 24.11.2010 EP 10192382.9 R U (73) Патентообладатель(и): ВЕЛЛТЕК А/С (DK) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.12.2014 Бюл. № 36 (15) Информация о коррекции: Версия коррекции №1 (W1 C2) (48) Коррекция опубликована: 2 5 7 6 4 1 9 R U (56) Список документов, цитированных в отчете о поиске: RU 2353751 C2, 27.04.2009. RU 2236549 C2, 20.09.2004. RU 2363831 C1, 10.08.2009. US 6454011 B1, 24.09.2002. US 2003234110 A1, 25.12.2003. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.06.2013 (86) Заявка PCT: EP 2011/070819 (23.11.2011) (87) Публикация заявки PCT: WO 2012/069540 (31.05.2012) Адрес для переписки: 191002, Санкт-Петербург, а/я 5, ООО "Ляпунов и партнеры" (54) БЕСПРОВОДНЫЙ СКВАЖИННЫЙ ...

用于卸载液体的井下系统

本发明涉及一种用于卸载在技术套管与生产管状金属结构之间的环空中的井内液体的井下系统。井下系统包括：技术套管；在井的顶部处的泵，该泵构造成对环空进行加压以置换环空中的液体；具有第一内径的生产管状金属结构，其部分地布置在技术套管中，从而限定出环空；布置在技术套管与生产管状金属结构之间的生产封隔器；和第一液体卸载组件和第二液体卸载组件，每个均包括：具有壁部的管状部件，壁部具有第二内径、外表面和开孔，管状部件构造成安装为生产管状金属结构的一部分；以及与外表面连接的止回阀，止回阀具有与环空流体连通的入口和与开孔流体连通的出口。井下系统还包括滑动套筒，滑动套筒布置成沿管状部件的内表面而在打开位置与关闭位置之间滑动以打开或关闭开孔。此外，本发明涉及用于卸载在技术套管与生产管状金属结构之间的环空中的井内液体的液体卸载方法。

Double-purpose downhole tool

FIELD: soil or rock drilling; mining.SUBSTANCE: group of inventions relates to a multifunctional well downhole tool, a borehole system, a sampling method and a method for discharging a pressure jet. Multifunctional downhole cable-lowering tool for sampling a fluid and discharging a pressure fluid jet in a well comprises a pump having a pump opening, and a fluid chamber for sampling a fluid or storing a fluid to be discharged by a pressure jet. Chamber for fluid medium has the first end of the chamber connected to the hole of the pump, and the second end of the chamber having a chamber opening. Fluid chamber has a chamber wall and comprises: a first piston and a second piston dividing the fluid chamber into a first chamber section, a second chamber section and a third chamber section, wherein the first piston is connected to the first end of the first piston rod, and the second piston is connected to the first end of the rod of the second piston; a first support configured to support the first piston rod; second support configured to support second piston rod; and a first spring located between the first piston and the first support, and another first spring located between the second piston and the second support. When the pump creates a pressure drop on the pistons, the pistons move in one direction so that the first springs force is activated and the fluid can flow from one chamber section to the other chamber section.EFFECT: technical result consists in the possibility of performing several operations without the need to lift the tool to the surface for re-equipment.15 cl, 12 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 688 823 C2 (51) МПК E21B 27/02 (2006.01) E21B 49/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК E21B 27/02 (2019.02); E21B 49/08 (2019.02) (21)(22) Заявка: 2016151511, 10.06.2015 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ВЕЛЛТЕК А/С (DK) Дата ...

Patent RU2016151511A3

`”ВУ“” 2016151511” АЗ Дата публикации: 20.12.2018 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 9 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2016151511/03(082586) 10.06.2015 РСТ/ЕР2015/062885 10.06.2015 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 14171978.1 11.06.2014 ЕР* Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СКВАЖИННЫЙ ИНСТРУМЕНТ ДВОЙНОГО НАЗНАЧЕНИЯ Заявитель: ВЕЛЛТЕК А/С, ОК 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) Е21В 27/02 (2006.01) Е21В 49/08 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) Е21В 23/00, 23/08, 23/10, 23/14, 277/00, 27/02, 49/00, 49/08, 49/10, 33/00, 33/10, 34/00, 34/06 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): Езрасепеё, Раеагсв, КОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, Относится к гория* относящихся к ...

Feeding device for downhole tool and method of downhole tool axial feed

FIELD: mining. SUBSTANCE: group of inventions relates to the field of drilling, namely to an feeding device for a rotating downhole tool. The feeding device (3) for moving the rotating downhole tool (4) in the axial direction during the tube surrounding body (12) part processing contains several feed wheels lying in a plane inclined relatively to a plane which is perpendicular to the central axis of the downhole tool (5), the noted feed wheels are mounted with the ability to move between a retracted inoperative position and an extended operative position at which the feed wheels can bump into the inner wall surface (121) of the pipe body (12) surrounding the noted feeding device (3). Feed wheel suspension, connected to the radial guide and the first actuator, which when activated permits movement of the noted feed wheels with a radial direction component and an axial direction component along the inclined plane defined by the radial guide is provided. Suspension and radial guide are made with the ability to move relative to each other along their inclined mating surfaces. EFFECT: providing high accuracy while using the cutting tools during drive tube processing. 8 cl, 6 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 616 050 C2 (51) МПК E21B 4/18 (2006.01) E21B 23/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2014137625, 28.02.2013 (24) Дата начала отсчета срока действия патента: 28.02.2013 (72) Автор(ы): ШЕРСЕТ Одд Б. (NO), ВЕСХОВДЕ Ярле (NO) 12.04.2017 Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: SU 1754890 А1, 15.08.1992. US 28.02.2012 NO 20120216 (45) Опубликовано: 12.04.2017 Бюл. № 11 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 29.09.2014 4192380 A, 03.11.1980. RU 2153057 C2, 20.07.2000. RU 2236549 C2, 20.09.2004. RU 2299969 C2, 27.05.2007. RU 2353751 C2, 27.04.2009. RU 2354801 C2, 10.05.2009. US ...

Downhole driving unit having hydraulic motor with planetary gearing system

FIELD: mining. SUBSTANCE: group of inventions relates to mining and can be used for delivery of working tool at well bottom. Downhole driving unit comprising a driving unit housing, a hydraulic motor comprising a hydraulic motor housing, a wheel assembly comprising a stationary part and a rotational part. Stationary part is connected with driving unit housing and is rotatably connected with rotational part. Wheel assembly comprises a wheel ring for contacting an inner wall in well and connected with or forming part of rotational part. Wheel assembly further comprises a hydraulic motor so that stationary part and rotational part constitute hydraulic motor housing. Hydraulic motor comprises a rotatable section connected with rotational part for rotating part of wheel assembly. Furthermore, wheel assembly comprises a planetary gearing system comprised in hydraulic motor housing. Hydraulic motor comprises a rotatable section driving wheel ring through planetary gearing system. Invention also relates to a downhole system comprising driving unit and to use of such driving unit. EFFECT: technical result consists in improvement of reliability of downhole drive unit. 20 cl, 17 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 599 111 C9 (51) МПК E21B 23/14 (2006.01) E21B 4/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) СКОРРЕКТИРОВАННОЕ ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ Примечание: библиография отражает состояние при переиздании (21)(22) Заявка: 2013147944/03, 29.03.2012 (24) Дата начала отсчета срока действия патента: 29.03.2012 (72) Автор(ы): ХАЛЛУНБЕК Йерген (DK) (73) Патентообладатель(и): ВЕЛЛТЕК А/С (DK) R U Приоритет(ы): (30) Конвенционный приоритет: 30.03.2011 EP 11160504.4 (43) Дата публикации заявки: 10.05.2015 Бюл. № 13 (15) Информация о коррекции: Версия коррекции №1 (W1 C2) (48) Коррекция опубликована: 2 5 9 9 1 1 1 R U (56) Список документов, цитированных в отчете о поиске: WO 0046481 A2, 10.08.2000. SU 1493774 A1, 15.07.1989. RU 2175374 C1, 27. ...

Well drilling method

FIELD: well drilling, particularly methods to drill orifices from predetermined area in existent well passing through underground reservoir carrying hydrocarbon fluid, and micro-drilling device. SUBSTANCE: method involves moving drilling device provided with remote control and electric drive from ground surface along hydrocarbon fluid production pipe to selected area in existent well bore, wherein the pipe is sealed with respect to casing pipe wall; bringing drilling device in action so that cutting surfaces thereof may drill orifice from selected area of existent well to create drilling cuttings, wherein as drilling device operates the first produced fluid flow passes to ground surface through hydrocarbon fluid production pipe and the second produced fluid flow is injected over cutting surfaces of drilling device by means of downhole injection device provided with remote control and electric drive; conveying drilling cuttings entrained by the second produced fluid flow from drilling device. Assembly for said method realization comprises body having fluid channels, gripping device to be expanded in radial direction and having electric or hydraulic drive, as well as injection device having electric drive. Electric motor is adapted to activate drilling bit mounted on pushing device provided with electric or hydraulic drive. The drilling bit has cutting surfaces sized to create drilled orifice with diameter of 0.2-3 inches. EFFECT: possibility to produce hydrocarbon fluid from existent well during orifice drilling from selected area. 35 cl, 5 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 320 840 (13) C2 (51) ÌÏÊ E21B 7/00 (2006.01) H01B 7/282 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2005105068/03, 16.07.2003 (72) Àâòîð(û): ÕÅÄ Ôèëèï (GB), ËÓÐÈ Ïîë Äæîðäæ (GB) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 16.07.2003 (73) Ïàòåíòîîáëàäàòåëü(è): ØËÞÌÁÅÐÃÅÐ ÒÅÊÍÎËÎÄÆÈ Á.Â. ( ...

Device for preventing net torque of bore bit and for adjustment of bore bit deflection

FIELD: oil and gas production. ^ SUBSTANCE: invention refers to oil-field boring, particularly to self-contained drilling rig and to remotely controlled drilling robot devices used at well boring. The drilling device consists of a concentrically divided bore bit; also an internal bore bit rotates simultaneously with external bore bit in the opposite direction. The internal bore bit can move forward in axial direction to the external bore bit or backward from it. Forces created by internal and external bore bits are adjusted to eliminate or correct torque reaction. ^ EFFECT: preventing drops of driving rate caused by objectionable rotating of drilling rig and initiating required deflection of bore bit. ^ 20 cl, 15 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 363 844 (13) C1 (51) МПК E21B 44/04 (2006.01) E21B 7/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2007145369/03, 06.12.2007 (24) Дата начала отсчета срока действия патента: 06.12.2007 (72) Автор(ы): ЗИХЛЕР Йоахим (GB), ШЕФЕРД Майкл (GB) (45) Опубликовано: 10.08.2009 Бюл. № 22 2 3 6 3 8 4 4 (56) Список документов, цитированных в отчете о поиске: US 5845721 А, 08.12.1998. SU 1609931 А1, 30.11.1990. RU 2081288 С1, 10.06.1997. RU 2103474 С1, 27.01.1998. RU 2149971 С1, 27.05.2000. US 20040011558 А1, 05.05.2005. 2 3 6 3 8 4 4 R U (54) УСТАНОВКА ДЛЯ ИСКЛЮЧЕНИЯ ЭФФЕКТИВНОГО КРУТЯЩЕГО МОМЕНТА БУРОВОГО ДОЛОТА И РЕГУЛИРОВАНИЯ ОТКЛОНЕНИЯ БУРОВОГО ДОЛОТА буровое долото, при этом внутреннее буровое долото вращается одновременно с внешним буровым долотом в противоположном направлении. Внутреннее буровое долото может перемещаться в осевом направлении вперед к внешнему буровому долоту или назад от него. Силы, создаваемые внутренним и внешним буровыми долотами, регулируются для исключения или корректировки реактивного крутящего момента. 3 н. и 17 з.п. ф-лы, 15 ил. Ñòðàíèöà: 1 ru C 1 C 1 Адрес для переписки: 129090, Москва, ул.Б. ...

CABLE ASSEMBLY OF THE INCREASED LENGTH FOR APPLICATION IN HYDROCARBON WELLS

1. Кабельная сборка для применения в углеводородной скважине, содержащая по меньшей мере, одну устьевую кабельную часть и, по меньшей мере, одну забойную кабельную часть, соединенную с, по меньшей мере, одной устьевой кабельной частью, и, по существу, отличающаяся по физическим свойствам от устьевой кабельной части. ! 2. Кабельная сборка по п.1, в которой, по существу, отличающиеся физические свойства включают в себя, по существу, более высокую прочность на разрыв устьевой части по сравнению с забойной частью. ! 3. Кабельная сборка по п.1, в которой по существу отличающиеся физические свойства включают в себя одно из следующего: по существу, меньший вес на фут, по существу, меньшее отношение предела прочности к весу и по существу более высокую рабочую температуру забойной части по сравнению с устьевой частью. ! 4. Кабельная сборка по п.1, имеющая длину, превышающую около 30000 футов или около 50000 футов. ! 5. Кабельная сборка по п.1, в которой, по меньшей мере, одна устьевая кабельная часть содержит структурные обмотки устьевой части и, по меньшей мере, одна забойная кабельная часть содержит структурные обмотки забойной части. ! 6. Кабельная сборка по п.5, в которой количество обмоток устьевой части, по существу, превышает количество обмоток забойной части. ! 7. Кабельная сборка по п.5, в которой обмотки забойной части имеют, по существу, меньший вес на фут, чем обмотки устьевой части. ! 8. Кабельная сборка по п.1, в которой устьевая часть и забойная часть имеют унитарную конфигурацию. ! 9. Кабельная сборка по п.1, в которой, по меньшей мере, одна устьевая кабельная часть соединена с, по меньшей мере, одной забойной кабельной частью посредств РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2009 103 151 (13) A (51) МПК E21B 43/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2009103151/03, 30.01.2009 (71) Заявитель(и): ШЛЮМБЕРГЕР ТЕКНОЛОДЖИ Б.В. (NL) (30) Конвенционный приоритет: 01.02.2008 ...

Annular barrier for equipping wells with inductive system

FIELD: drilling of wells. SUBSTANCE: invention relates to a downhole system for equipping a well with downhole wireless transmission of energy and signals, comprising: first well tubular structure, a second well tubular structure located partially inside first well tubular structure, first electric unit comprising a first part of inductive coupling element, located on outer surface of first well tubular structure and electrically connected to electric conductor, annular barrier configured to expand in annular space between first well tubular structure and wellbore wall or other downhole tubular structure inside well to provide zone isolation between first zone having first pressure and second zone. Annular barrier comprises: tubular metal part for installation as part of first well tubular structure, wherein tubular metal part has first expansion hole, axial elongation and outer surface, expanding bushing surrounding tubular metal part and having inner surface facing tubular metal part, and outer surface facing well bore wall, first connecting part and second connecting part configured to connect first end and second end of expandable sleeve with tubular metal part, respectively, annular space between inner surface of expansion bush and tubular metal part. Annular barrier additionally comprises electric conductor, passing outside tubular metal part and inside expanding bushing from first connecting part to second connecting part, and a second electrical unit comprising a second portion of the inductive coupling member disposed within the first well tubular structure and outside the second well tubular structure and adapted to abut on inner surface of well tubular structure. First electrical unit is configured to transmit energy and/or signals to the second electrical unit. Present invention also relates to annular barrier. EFFECT: technical result consists in elimination of reduction of internal diameter of well or increase of total outer diameter of well. 18 cl, 8 ...

Pulling mechanism with hydraulic drive

Группа изобретений относится к области бурения, а именно к тянущим гибкую трубу устройствам. Устройство с гидравлическим приводом для непрерывного продвижения внутри скважины содержит поршень; первый корпус вокруг первой головки упомянутого поршня, первый якорь, присоединенный к упомянутому первому корпусу для его фиксации при перемещении первой головки; второй корпус вокруг второй головки упомянутого поршня, второй якорь, присоединенный к упомянутому второму корпусу для его фиксации при перемещении второй головки; и узел гидравлической последовательности, связывающий по текучей среде корпуса таким образом, что приток гидравлического давления в силовую камеру одного корпуса перемещает головку поршня в этом поршне и вытесняет текучую среду из возвратной камеры этого корпуса в возвратную камеру другого корпуса для перемещения другого корпуса относительно поршня. К каждому из якорей присоединен механизм для управления их активированием и деактивированием, который активирует неподвижность одного якоря с задержкой деактивирования неподвижности другого якоря, тем самым деактивируя другой якорь только после достижения полной неподвижности одного якоря. Обеспечивает возможность поддержания непрерывного продвижения внутрь скважины и надежное закрепление при продвижении тянущего оборудования. 2 н. и 9 з.п. ф-лы, 8 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 471 955 (13) C2 (51) МПК E21B 4/18 (2006.01) E21B 23/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009129541/03, 28.12.2007 (24) Дата начала отсчета срока действия патента: 28.12.2007 (73) Патентообладатель(и): ШЛЮМБЕРГЕР ТЕКНОЛОДЖИ Б.В. (NL) R U Приоритет(ы): (30) Конвенционный приоритет: 02.01.2007 US 60/883,115 30.06.2007 US 11/772,181 (72) Автор(ы): ШЕИРЕТОВ Тодор К. (US), ПРИЕТО Сесилия (US), ТУНК Гоктурк (US), ХИЛЛ Стефен Д. (US) (43) Дата публикации заявки: 10.02.2011 Бюл. № 4 2 4 7 1 9 5 5 (45) Опубликовано: 10.01.2013 Бюл. № 1 (56) Список ...

Patent RU2018120759A3

`”ВУ“” 2018120759'” АЗ Дата публикации: 17.04.2020 Форма № 18 ИЗПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2018120759/03(032744) 22.11.2016 РСТ/ЕР2016/078422 22.11.2016 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 15195919.4 23.11.2015 ЕР 2. 16150086.3 04.01.2016 ЕР Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) ЗАТРУБНЫЙ БАРЬЕР ДЛЯ ОСНАЩЕНИЯ СКВАЖИН С ИНДУКТИВНОЙ СИСТЕМОЙ Заявитель: Веллтек Ойлфилд Солюшнс АГ, СН 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) Е21В 33/127 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) Е21В 33/00, 33/10, 33/12, 33/124, 33/128, 23/00, 29/00, 29/10, 47/00, Е16/ 15/00 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): Езрасепев, Раеагсв, КОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, ...

Method (versions), facility and system for control over rod of well tractor

FIELD: oil and gas industry. SUBSTANCE: group of inventions refers to drilling, particularly to method, facility and system for displacement of tools and other devices in well. The method consists in following stages: measurement of drive unit rate, measurement of tractor speed, determination of drive unit slipping on base of drive unit rate and tractor speed, comparison of drive unit slipping with acceptable value of slipping for determination of excessive drive unit slipping, and increasing normal force on the drive unit at excessive slipping of the drive unit. The facility contains a measuring unit designed to determine speed of the tractor in well, and a drive module including the drive unit contacting with a wall of the well and traveling relative to it. The drive module evaluates speed of the drive unit in well and applies normal force to the latter to bring the drive unit in touch with the wall in well and to displace it relative to the wall of well; also the drive module changes normal force at the drive unit on base of tractor speed and drive unit rate. The system contains at least two drive modules generating and applying normal force to at least one element connected with the tractor and displacing the tractor in well; the system also contains at least one measuring unit repeatedly measuring at least one of the following values: tractor speed in well and diametre of the well, further, it contains a main controller in connection with at least two modules of drive and at least one measuring unit; also at least one module of drive changes value of normal force required for displacement of the tractor in well on base of at least partially signals received from the main controller. EFFECT: facilitating continuous adjustment of normal force on one or several drive units automatically without human intervention in real time mode. 10 cl, 15 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 353 751 (13) C2 (51) МПК E21B 23/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ ...

MODULAR DRILLING TOOL

1. Скважинный инструмент (11), вытянутый в продольном направлении и содержащий:- корпус (54) инструмента;- рычажное устройство (60), шарнирно установленное на оси поворота, закрепленной относительно корпуса инструмента, и перемещаемое между убранным положением и выдвинутым положением относительно корпуса инструмента; и- рычажный привод (40) для перемещения рычажного устройства между указанными убранным и выдвинутым положением, причем рычажный привод установлен внутри корпуса инструмента и имеет первый торец (401) и второй торец (402), соединяемые с торцами других рычажных приводов;при этом рычажный привод содержит:- корпус (41) поршня с поршневой камерой (42), вытянутой в продольном направлении скважинного инструмента, содержащий:- первую часть (45) корпуса поршня;- вторую часть (46) корпуса поршня, разъемно соединенную с первой частью корпуса поршня; и- поршневой элемент (47), установленный внутри корпуса поршня и соединенный с рычажным устройством, причем поршневой элемент установлен с возможностью перемещения в корпусе поршня в продольном направлении скважинного инструмента.2. Скважинный инструмент по п.1, содержащий по меньшей мере два рычажных устройства и по меньшей мере два привода.3. Скважинный инструмент по любому из пп.1 или 2, в котором два рычажных устройства выдвигаются из корпуса в противоположных направлениях.4. Скважинный инструмент по любому из пп.1 или 2, в котором корпус поршня содержит один или более каналов (80а, 80b, 80с) пропускания текучей среды в одной или более стенках первой и/или второй части корпуса поршня.5. Скважинный инструмент по любому из пп.1 или 2, в котором рычажный привод содержит также пружинную дета� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2013 147 939 A (51) МПК E21B 23/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2013147939/03, 29.03.2012 (71) Заявитель(и): ВЕЛЛТЕК А/С (DK) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ХАЛЛУНБЕК Йерген (DK) 30.03. ...

Device for putting monitoring equipment in eccentric full-pipe and deep-pipe well

本发明提供一种用于偏心满管、深管井内投放监测设备的装置，包括支撑座、可调支臂、可调螺杆主臂和传感器，管井处于支撑座的底部，所述支撑座与管井固定连接，所述支撑座的顶部固定安装有固定座，所述固定座的顶部固定安装有遥控螺旋装置，该用于偏心满管、深管井内投放监测设备的装置设计合理，可调支臂和可调螺杆主臂能够调节横向和竖向的长度，通过控制遥控螺旋装置和手摇式差速装置来控制可调支臂的水平度和方向，通过水平转动手摇式差速装置实现偏心管道方向的查找，进而能够将传感器送入管井中流速平稳的位置，能够针对底部横管的走向不确定、管口附近紊流大的管井，实现查找管道走向、精准投放监测设备。

Well pumping system for liquid pumping

FIELD: drilling of wells. SUBSTANCE: group of inventions relates to well system for pumping well fluid from annular space between intermediate and production tubing string. Well system comprises an intermediate casing string and a pump. Pump is arranged at the wellhead and is configured to increase pressure in annular space to displace fluid located in annular space. There is operational tubular metal structure. It has the first internal diameter and is located in intermediate casing string with formation of annular space. There is an operational packer. It is located between intermediate casing string and production tubular metal structure. There are the first fluid pumping unit and the second liquid pumping unit. Each of these units comprises a tubular part containing a wall having a second inner diameter, an outer surface and a passage. Said tubular part can be installed as part of tubular metal structure. There is check valve. It is connected to external surface and has inlet hole for connection with annular space and outlet hole. In addition, the device comprises a sliding coupling for each of the first and second liquid pumping units. Sliding coupling is located opposite each of the first and second liquid pumping units. It is made with possibility of sliding along inner surface of tubular part between open position and closed position to open or close said passage to create or terminate communication with possibility of transferring fluid medium with first and second liquid pumping units. EFFECT: technical result is higher efficiency of well fluid pumping-out. 16 cl, 8 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 721 041 C2 (51) МПК E21B 43/12 (2006.01) F04B 47/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК E21B 43/12 (2020.02); F04B 47/00 (2020.02) (21)(22) Заявка: 2017143015, 28.06.2016 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Веллтек Ойлфилд Солюшнс АГ (CH) ...

Downhole tool and method

FIELD: mining. SUBSTANCE: downhole tool includes a coupling for placement on the body of a tubular article, and which is configured to change the structure from the first diameter configuration, in which the coupling is configured to move along the body of the tubular article in the configuration with the second the smaller diameter in which the coupling is configured to hold the tubular article on the body. The coupling or a portion of the coupling is configured for plastic deformation to change structure of the coupling from configuration with the first diameter into configuration with the second diameter, the coupling is mounted for rotation on the body of the tubular article in the second configuration. EFFECT: reduced torque or friction of the rotating units. 19 cl, 20 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 645 043 C2 (51) МПК E21B 17/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК E21B 17/10 (2017.08); E21B 17/1014 (2017.08) (21)(22) Заявка: 2014137322, 18.02.2013 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ПАРАДИГМ ДРИЛЛИНГ СЕРВИСИЗ ЛИМИТЕД (GB) Дата регистрации: 15.02.2018 16.02.2012 GB 1202640.7 (43) Дата публикации заявки: 10.04.2016 Бюл. № 10 627230 A, 11.09.1978. RU 2225497 C2, 10.03.2004. US 5069297 A, 03.12.1991. US 5148876 A, 22.09.1992. US 5803193 A, 08.09.1998. (45) Опубликовано: 15.02.2018 Бюл. № 5 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 16.09.2014 2 6 4 5 0 4 3 (56) Список документов, цитированных в отчете о поиске: WO 2009/132301 A1, 29.10.2009. SU Приоритет(ы): (30) Конвенционный приоритет: R U 18.02.2013 (72) Автор(ы): СИМПСОН Нил Эндрю Аберкромби (GB) GB 2013/050390 (18.02.2013) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 6 4 5 0 4 3 WO 2013/121231 (22.08.2013) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СКВАЖИННЫЙ ИНСТРУМЕНТ И ...

Well system

The drilling system includes a work string supporting a bottom hole assembly. The work string including lengths of pipe having a non-metallic portion. The work string preferably includes a composite coiled tubing having a fluid impermeable liner, multiple load carrying layers, and a wear layer. Multiple electrical conductors and data transmission conductors may be embedded in the load carrying layers for carrying current or transmitting data between the bottom hole assembly and the surface. The bottom hole assembly includes a bit, a gamma ray and inclinometer instrument package, a steerable assembly, an electronics section, a transmission, and a power section for rotating the bit. It may or may not include a propulsion system. The drilling system may be a gravity based drilling system that does include a propulsion system. Various motive means may be provided, such as gravity, to apply weight on the bit.

Long reach rotary drilling assembly

A long reach rotary drilling assembly comprises an elongated conduit extending through a bore in an underground formation, a drill bit for being rotated to drill the bore, a 3-D steering tool on the conduit for steering the drill bit, and a tractor on the conduit for applying force to the drill bit. The steering tool includes a telemetry section, a rotary section, and a flex section assembled as an integrated system in series along the length of the tool. The flex section comprises a flexible drive shaft to which a bending force is applied when making inclination angle adjustments. The rotary section includes a deflection housing which rotates for making azimuth angle adjustments. The telemetry section receives inclination and azimuth angle steering commands together with actual inclination and azimuth angle feedback signals for controlling operation of the flex section and rotary section to steer the drilling assembly along a desired course. The tractor includes a gripper which can assume a first position that engages an inner surface of the bore and limits relative movement of the gripper relative to the inner surface. The gripper can also assume a second position that permits substantially free relative movement between the gripper and the inner surface of the bore. A propulsion assembly moves the tractor with respect to the gripper while the gripper portion is in the first position. The tractor applies force to the drill bit for drilling the bore along a desired course the direction of which is controlled by the 3-D steering tool.

Annular barrier completion system with induction system

一种井下系统，包括：‑第一井管结构(1A)和部分地布置在其内部的第二井管结构(1B)；‑包括第一感应耦合器部件(20A)并布置在第一井管结构的外表面(21)上并与导电体电连接的第一电单元(20)；‑用于在第一井管结构(1A)外侧的环空(2)中膨胀的环状屏障(10)，并且环状屏障包括：‑用于安装为第一井管结构的一部分的管状金属部件(7)，管状金属部件具有第一膨胀开口(3)、轴向延伸方向(L)和外表面(4)；‑围绕管状金属部件的可膨胀套筒(8)；‑构造成分别将可膨胀套筒的第一端部(13)和第二端部(14)与管状金属部件连接的第一连接部件(11)和第二连接部件(12)；和‑在可膨胀套筒的内表面与管状金属部件之间的环形空间(15)，其中环状屏障还包括在管状金属部件的外侧并在可膨胀套筒之中从第一连接部件延伸至第二连接部件的导电体(17)；和‑第二电单元(20B)，其包括第二感应耦合器部件(20B)并布置在第一井管结构的内侧以及布置在第二井管结构外侧并构造成邻接井管结构的内表面(22)以能向第二电单元传输电力和/或通信。

Independent drilling system for drain wells

FIELD: oil and gas industry. SUBSTANCE: drilling system of drain well sideways from well shaft includes drilling bit containing drilling tool of drain wells and self-propelled device adapted for movement of bit in drain well during drilling, relay block lowered to the well shaft and prepared for positioning of drilling bit opposite side wall of well shaft so that drilling process of drain well can be initiated, electric current supply cable to drilling bit, which is uncoiled from relay block, and mechanical system for removal of drilling slurry from drain well during drilling process. Relay block is lowered to the well shaft. At least one drain well is drilled sideways from the well shaft with drilling bit receiving the electric power through the electric current supply cable uncoiled from relay block. Drilling slurry is removed from drain well during drilling with mechanical system; at that, removed rock debris fall to the bottom of well. Oil or gas is extracted from natural reservoir through drain well and well shaft. EFFECT: enlarging the exchange surface between natural reservoir and well. 15 cl, 9 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 471 057 (13) C2 (51) МПК E21B 7/04 (2006.01) E21B 43/11 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2008140988/03, 15.10.2008 (24) Дата начала отсчета срока действия патента: 15.10.2008 (72) Автор(ы): АМАДЕЙ Кристоф (FR), ДЕРБЕ Эмманюэль (FR) (73) Патентообладатель(и): ТОТАЛЬ СА (FR) R U Приоритет(ы): (30) Конвенционный приоритет: 16.10.2007 FR 0707240 (43) Дата публикации заявки: 20.04.2010 Бюл. № 11 2 4 7 1 0 5 7 (45) Опубликовано: 27.12.2012 Бюл. № 36 (56) Список документов, цитированных в отчете о поиске: US 4365676 A, 28.12.1982. WO 99/29997 A1, 17.06.1999. WO 00/75476 A1, 14.12.2000. WO 2004/011766 A1, 05.02.2004. WO 2005/071208 A1, 04.08.2005. 2 4 7 1 0 5 7 R U (54) АВТОНОМНАЯ СИСТЕМА ДЛЯ БУРЕНИЯ ДРЕНАЖНЫХ СКВАЖИН (57) Реферат: Группа изобретений ...

Arm assembly

The present invention relates to a downhole tool extending in a longitudinal direction, comprising a tool housing, an arm assembly movable between a retracted position and a projecting position in relation to the tool housing, the arm assembly comprising an arm member connected with the tool housing in one end, an arm activation assembly arranged in the tool housing for moving the arm assembly between the retracted position and the projecting position, a pump for circulating hydraulic fluid, wherein the arm assembly comprises a hydraulic mechanism arranged in connection with the arm member, and a fluid influx channel provided in the arm member, the fluid influx channel being in fluid communication with the hydraulic mechanism for supplying hydraulic fluid from the pump to the hydraulic mechanism. Furthermore, the invention relates to a tool string system comprising a plurality of downhole tools, wherein at least one of the downhole tools is a downhole tool according to the invention.

Lever assembly

FIELD: tools. SUBSTANCE: invention is related to the downhole tool, elongated in longitudinal direction, with a tool case, a lever assembly configured to move between retracted position and extended position relative to the tool case. Latter contains the lever element connected by one end with tool body, a unit for activation of the lever, arranged in tool body for movement of the lever assembly between the retracted position and extended position, a pump ensuring circulation of fluid. Lever assembly contains a hydraulic mechanism located in connection with the lever element, and a supply channel implemented in the clamping element. Supply channel is connected with the possibility to transfer fluid medium with hydraulic mechanism for feeding hydraulic fluid from the pump to the hydraulic mechanism. Invention is also related to a tool of a shell containing multiple downhole tools. Besides, at least one of downhole tools is a downhole tool according to the invention. EFFECT: technical result is in improvement of efficiency of delivering the downhole tool. 15 cl, 13 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 599 819 C2 (51) МПК E21B 23/14 (2006.01) E21B 4/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013147725/03, 29.03.2012 (24) Дата начала отсчета срока действия патента: 29.03.2012 (72) Автор(ы): ХАЛЛУНБЕК Йерген (DK) (73) Патентообладатель(и): Веллтек А/С (DK) Приоритет(ы): (30) Конвенционный приоритет: R U 30.03.2011 EP 11160499.7 (43) Дата публикации заявки: 10.05.2015 Бюл. № 13 (45) Опубликовано: 20.10.2016 Бюл. № 29 2 5 9 9 8 1 9 (56) Список документов, цитированных в отчете о поиске: WO 2010123375 A1, 28.10.2010. RU 2175374 C1, 27.10.2001. RU 2353751 C2, 27.04.2009. RU 2354801 C2, 10.05.2009. US 6273189 B1, 14.08.2001. US 6629568 B2, 07.10.2003. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 30.10.2013 EP 2012/055645 (29.03.2012) C 2 C 2 (86) Заявка PCT: (87) Публикация ...

Patent RU2017143015A3

7 ВУ“? 2017143015” АЗ Дата публикации: 10.01.2020 Форма № 18 ИЗПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2017143015/03(074182) 28.06.2016 РСТ/ЕР2016/065008 28.06.2016 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 15174401.8 29.06.2015 ЕР* 2. 15175551.9 06.07.2015 ЕР* Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СКВАЖИННАЯ СИСТЕМА ДЛЯ ОТКАЧИВАНИЯ ЖИДКОСТИ Заявитель: Веллтек Ойлфилд Солюшнс АГ, СН 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) Е21В 43/12 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) Е21В 43/00, 43/12-43/27, ВОДВ, 47/00-4/7/06 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, Относится к гория* относящихся к предмету поиска пункту формулы № 1 2 3 Хх СА 2829630 ...

Modular downhole tool

FIELD: mining. SUBSTANCE: invention relates to a downhole tool extending in a longitudinal direction, comprising a tool housing; arm assembly pivotally mounted about a pivot point fixed in relation to tool housing and movable between a retracted position and a projecting position in relation to tool housing; arm activation assembly for moving arm assembly between retracted position and projecting position. Arm activation assembly is arranged inside tool housing and has a first end face and a second end face adapted for being connected with end faces of other arm activation assemblies. Arm activation assembly comprises a piston housing having a piston chamber extending in longitudinal direction of downhole tool and comprising: first piston housing part; second piston housing part is detachably connected to first piston housing part; piston member arranged inside piston housing and connected with arm assembly. Piston member is movable in piston housing in longitudinal direction of downhole tool. EFFECT: higher reliability of downhole tool. 15 cl, 9 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 598 955 C2 (51) МПК E21B 23/14 (2006.01) E21B 4/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013147939/03, 29.03.2012 (24) Дата начала отсчета срока действия патента: 29.03.2012 (72) Автор(ы): ХАЛЛУНБЕК Йерген (DK) (73) Патентообладатель(и): ВЕЛЛТЕК А/С (DK) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 10.05.2015 Бюл. № 13 R U 30.03.2011 EP 11160493.0 (45) Опубликовано: 10.10.2016 Бюл. № 28 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 30.10.2013 2 5 9 8 9 5 5 (56) Список документов, цитированных в отчете о поиске: WO2008091157 A1, 31.07.2008. RU 2034140 C1, 30.04.1995. RU 2236549 C2, 20.09.2004. RU 2341639 C2, 20.12.2008. RU 2354801 C2, 10.05.2009. US 2009025941 A1, 29.01.2009. WO 2009111693 A2, 11.09.2009. EP 2012/055637 (29.03.2012) C 2 C 2 (86) Заявка PCT: ( ...

Assembly of hydraulically-driven twin-tractor

FIELD: oil and gas industry. SUBSTANCE: tractor assembly used at bottom-hole of oil and gas wells with several tractors contains a hydraulic drive and can contribute essential increase of total carrying capacity while performing operations by bottom-hole tractors. Thus, operations at flexible tubing string can be performed at extended depth of wells. Besides carrying capacity of the assembly can be distributed hydraulically by means of different technological infrastructure. Thus, total carrying capacity can be increased and wear of the tractor assembly can be decreased from the well-head side. EFFECT: improving efficiency of required equipment delivery to horizontal wells of large length. 21 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 513 733 C2 (51) МПК E21B 23/04 (2006.01) E21B 4/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2009115413/03, 22.04.2009 (24) Дата начала отсчета срока действия патента: 22.04.2009 (72) Автор(ы): ХИЛЛ Стефен Д (US), ПРИЕТО Сесилия (US) (73) Патентообладатель(и): ШЛЮМБЕРГЕР ТЕКНОЛОДЖИ Б.В. (NL) Приоритет(ы): (30) Конвенционный приоритет: R U 23.04.2008 US 61/047,151; 07.04.2009 US 12/419,375 (43) Дата публикации заявки: 27.10.2010 Бюл. № 30 (56) Список документов, цитированных в отчете о поиске: US 2008066963 A1, 20.03.2008. SU 1236098 A1, 07.06.1986. US 6089323 A, 18.07.2000. US 2008073077 A1, 27.03.2008 2 5 1 3 7 3 3 R U (54) КОМПОНОВКА ТАНДЕМНОГО ТРАКТОРА С ГИДРАВЛИЧЕСКИМ ПРИВОДОМ (57) Реферат: Компоновка тракторов для применения на можно гидравлически распределять между забое нефтегазоносных скважин с несколькими тракторами компоновки с помощью использованием нескольких тракторов различного технического оснащения. Таким одновременно содержит гидравлический привод способом можно увеличивать общую и может создавать существенное увеличение грузоподъемность и уменьшать износ трактора общей грузоподъемности при выполнении работы компоновки со стороны устья. ...

WELL DRIVE UNIT WITH HYDRAULIC ENGINE LOCATED IN THE WHEEL

1. Скважинный приводной агрегат (11) для ввода в скважину, содержащий:- корпус (51) приводного агрегата,- рычажное устройство (60), выполненное с возможностью перемещения между убранным положением и выдвинутым положением относительно корпуса приводного агрегата,- устройство (41) для приведения в действие рычагов, расположенное в корпусе приводного агрегата и предназначенное для перемещения рычажного устройства между убранным положением и выдвинутым положением, и- колесное устройство (90), содержащее неподвижную часть (91) и вращающуюся часть (92), причем неподвижная часть соединена с рычажным устройством или образует часть рычажного устройства и соединена с вращающейся частью с возможностью вращения,причем колесное устройство содержит гидравлический двигатель (23), содержащий корпус (93) гидравлического двигателя и вращающуюся секцию (84), соединенную с вращающейся частью для вращения части колесного устройства.2. Скважинный приводной агрегат по п.1, в котором неподвижная часть и вращающая часть образуют корпус гидравлического двигателя.3. Скважинный приводной агрегат по п.1 или 2, в котором колесное устройство, кроме того, содержит планетарную зубчатую передачу (95).4. Скважинный приводной агрегат по п.3, в котором планетарная зубчатая передача расположена в корпусе гидравлического двигателя.5. Скважинный приводной агрегат по п.3, в котором колесное устройство содержит обод (99) колеса.6. Скважинный приводной агрегат по любому из пп.4 или 5, в котором вращающаяся секция гидравлического двигателя соединена с центральным зубчатым колесом (96) планетарной зубчатой передачи.7. Скважинный приводной агрегат по п.4, в котором для приве� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК E21B 23/00 (13) 2013 147 946 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2013147946/03, 29.03.2012 (71) Заявитель(и): ВЕЛЛТЕК А/С (DK) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ХАЛЛУНБЕК Йерген (DK) 30.03.2011 EP ...

STAND-ALONE SYSTEM FOR DRILLING DRAIN WELLS

1. Автономная система для бурения дренажной скважины (10) в направлении вбок от ствола (12) скважины, содержащая: ! буровую головку (14) с инструментом (16) для бурения дренажных скважин (10) и самоходное устройство (18), предназначенное для продвижения головки в дренажной скважине во время бурения; ! релейный блок (20), опущенный в ствол (12) скважины и предназначенный для позиционирования буровой головки (14) напротив боковой стенки (22) ствола (12) скважины с тем, чтобы инициировать процесс бурения дренажной скважины (10) вбок от ствола (12) скважины; ! кабель (24) для подачи электрического тока к буровой головке (14), разматывающийся из релейного блока (20); и ! механическая система для удаления бурового шлама из дренажной скважины во время бурения, при этом удаленные обломки породы падают в забой скважины. ! 2. Система, по п.1, в которой система для удаления бурового шлама содержит кабель (24) для подачи электрического тока, вращающийся вокруг своей оси в дренажной скважине (10). ! 3. Система по п.2, в которой кабель (24) для подачи электрического тока содержит рисунок или рельеф, сформированный или закрепленный на его поверхности. ! 4. Система по п.3, в которой кабель (24) для подачи электрического тока имеет, в основном, винтообразный рисунок. ! 5. Система по любому из пп.1-4, в которой буровая головка (14) содержит двигатель для вращения силового кабеля. ! 6. Система по любому из пп.1-4, в которой релейный блок также содержит двигатель (50) для вращения участка релейного бока (20), в котором хранится силовой кабель. ! 7. Система п.5, в которой релейный блок также содержит двигатель (50) для вращения участка релейного бока (20), в котором хранится силовой кабель. ! 8. Сист РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2008 140 988 (13) A (51) МПК E21B 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2008140988/03, 15.10.2008 (71) Заявитель(и): ТОТАЛЬ СА (FR) (30) Конвенционный ...

Transport device

Laser propelled tractor with laser operated logging tools

A method for maneuvering and operating a tool within a wellbore of a subterranean well includes providing a tractor assembly having a fluid chamber with a port extending through a sidewall of the fluid chamber. The port is moved to the open position to allow a well fluid of the subterranean well to flow into the fluid chamber. The port is moved to the closed position to prevent the well fluid from flowing between the interior of the fluid chamber and the exterior of the fluid chamber. A heating laser beam is generated with a laser and directed towards the fluid chamber to increase the temperature of the well fluid within the fluid chamber. The port is moved to the open position to allow the high heat well fluid to flow out of the fluid chamber to accelerate the tractor assembly within the wellbore.

Borehole retention device

A borehole retention assembly for anchoring a well tool within a wellbore including a gripping assembly and an actuation assembly. The gripping assembly includes expandable members such that upon expanding the expandable members, the gripping assembly engages the wall of the borehole. The gripping assembly includes a pair of expandable members and a medial member, the members having cooperating tapered surfaces therebetween such that upon the actuation assembly contracting the gripping assembly, the expandable members are cammed outwardly against the borehole wall. The gripping assembly is mounted on a mandrel enabling them to resist rotational and axial forces on the well tool. When engaged, space is provided on each side of the borehole retention assembly such that annular flow is permitted therearound.

Drilling apparatus

A drilling apparatus comprised of a multiplicity of subassemblies for drilling an open-hole extension from within an existing cased borehole located in a geological formation for the production of oil and gas. In one embodiment, one subassembly includes a motor located within a cased section of the borehole that rotates a drill pipe segment attached to a rotary drill bit in the open-hole to drill the open-hole extension of the well. In another embodiment, a shroud encloses the motor located within the cased portion of the well that is used to control the mud flow to and from the bit in the open-hole during the drilling process.

High power umbilicals for subterranean electric drilling machines and remotely operated vehicles

The method of providing in excess of 60 kilowatts of electrical power to the electrical motor of a subterranean electric drilling machine through a substantially neutrally buoyant composite umbilical containing electrical conductors to reduce the frictional drag on the neutrally buoyant umbilical. Drilling and casing subterranean monobore wells are contemplated to distances of 20 miles from a wellsite. For drilling applications, the umbilical possesses a drilling fluid conduit. The umbilical also possesses high speed data communications such as a fiber optic cable or a coaxial cable that is used in the feedback control of the downhole electric drilling motor. Such umbilicals are also useful to provide power to remotely operated vehicles for subsea well servicing applications.

High power umbilicals for electric flowline immersion heating of produced hydrocarbons

Methods and apparatus for installing electrically heated composite umbilicals within subsea flowlines containing produced hydrocarbons as immersion heaters to prevent waxes and hydrates from forming within the subsea flowlines that could block the flowlines. The electrically heated composite umbilicals may be installed, or retrofitted, into existing subsea flowlines. Such retrofitted electrically heated composite umbilicals provide an alternative for previously installed, but failed, permanent heating systems. A hydraulic pump installed on the distant end of an electrically heated composite umbilical also provides artificial lift for the produced hydrocarbons. Other electrically heated umbilicals used as immersion heaters are described. Such immersion heater systems may be removed from the well, repaired, and retrofitted into flowlines without removing the flowlines. Near neutrally buoyant electrically heated umbilicals are described which may be installed great distances into flowlines. Different methods of deploying the electrically heated umbilicals are also provided.

Substantially neutrally buoyant and positively buoyant electrically heated flowlines for production of subsea hydrocarbons

A flowline is described for producing hydrocarbons from a subsea well that is comprised of a substantially neutrally buoyant tubular composite umbilical. The flowline may possess electrical heating apparatus within the tubular walls of the tubular composite umbilical to prevent waxes and hydrates from forming within the flowline and blocking the flowline. The electrical heating apparatus is comprised of at least one electrical conductor disposed within the tubular walls of the composite umbilical that conducts electrical current that is used to heat the tubular composite umbilical. The tubular composite umbilical that contains any produced hydrocarbons is substantially neutrally buoyant in the sea water adjacent to the subsea well. Positively neutrally buoyant tubular composite umbilical flowlines are also described.