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公开(公告)号：US11788359B2
公开(公告)日：2023-10-17
申请号：US17473340
申请日：2021-09-13
发明人： Jonathan D. Marshall , Edward George Parkin , Geoffrey Charles Downton , David C. Hoyle , Nalin Weerasinghe , Dennis Patrick Chesnutt
IPC分类号： E21B7/06 , E21B23/00 , E21B34/16 , E21B47/024 , E21B4/00
CPC分类号： E21B7/062 , E21B23/006 , E21B34/16 , E21B47/024 , E21B4/003
摘要： A downhole steering system includes a substantially tubular housing, a shaft positioned within the substantially tubular housing, a first bearing and a second bearing, the first and second bearings being configured to support rotation of the shaft relative to the housing. The first bearing, the second bearing, the shaft, and the housing at least partially define a chamber therebetween. The system also includes at least one structure positioned axially between the first and second bearing and being configured to extend from an exterior of the housing in response to pressure communicated to the chamber.
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公开(公告)号：US20210140277A1
公开(公告)日：2021-05-13
申请号：US17152086
申请日：2021-01-19
IPC分类号： E21B41/00
摘要： A downhole turbine assembly may comprise a tangential turbine disposed within a section of drill pipe. A portion of a fluid flowing through the drill pipe may be diverted to the tangential turbine generally perpendicular to the turbine's axis of rotation. After rotating the tangential turbine, the diverted portion may be discharged to an exterior of the drill pipe.
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公开(公告)号：US20210131204A1
公开(公告)日：2021-05-06
申请号：US16639613
申请日：2018-08-20
发明人： Jonathan D. Marshall , Edward George Parkin , David C. Hoyle , Scott Richard Woolston , Jim Shumway
摘要： A downhole transducer assembly capable of being safely operated at a variety of pressures and depths may include a turbine rotatable by a fluid pressure differential rotationally fixed to a rotor in a generator. To reduce the rotational speed of the turbine and rotor, a pressure regulator may limit a fluid pressure differential by controlling the volumetric flow. In other embodiments, one or more nozzles may be configured to automatically regulate a nozzle diameter, and therefore the pressure drop across the nozzle. In other embodiments, a surge protector may be connected to the generator.
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公开(公告)号：US10030704B2
公开(公告)日：2018-07-24
申请号：US15122662
申请日：2015-03-04
发明人： David R. Hall , Jonathan D. Marshall , Scott S. Dahlgren , Daniel Manwill , R. Craig Boswell , Scott Richard Woolston
摘要： Aspects of the disclosure can relate to an apparatus including a first member having a first bearing surface formed from a hard material (e.g., a diamond-based material, such as a polycrystalline diamond material), and a second member coupled to an input shaft to translate (e.g., rotate, slide, etc.) with respect to the first member. The second member has a second bearing surface formed from a hard material, and the second bearing surface is to bear against the first bearing surface. In embodiments of the disclosure, the first and second members can be for devices including, but not necessarily limited to: solenoids, generators and/or motors (e.g., out-runner radial flux generators, axial flux generators, radial flux generators/motors, roller vane motors, etc.), gearboxes, rotary data swivels, digital actuators, filters (e.g., inner rotating filters), valves (e.g., proportional valves), sensors (e.g., pressure differential sensors), and so forth.
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公开(公告)号：US09989665B2
公开(公告)日：2018-06-05
申请号：US14699009
申请日：2015-04-29
发明人： Brian O. Clark , Jacques Orban , Jonathan D. Marshall , Scott R. Woolston , Daniel Hendricks , Neil Cannon
IPC分类号： G01V3/20
CPC分类号： G01V3/20
摘要： Devices and methods for well logging using a wear-resistant electrode are provided. A downhole device may include a drill collar and a first electrode mounted on the drill collar. Further, the first electrode may include a wear-resistant face. The first electrode may be movably coupled within the drill collar, and the first electrode may be configured to extend and retract into a wellbore to maintain contact with a wall of the wellbore. Furthermore, the first electrode may be configured to measure impedance of a geological formation.
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公开(公告)号：US09880311B2
公开(公告)日：2018-01-30
申请号：US14699053
申请日：2015-04-29
发明人： Brian O. Clark , Jacques Orban , Jonathan D. Marshall , Scott R. Woolston , Daniel Hendricks , Neil Cannon
摘要： Devices and methods for well logging using a wear resistant electrode are provided. A downhole device may include a drill bit, a gauge pad mounted on the drill bit, and a first electrode mounted in the gauge pad. An insulating polycrystalline diamond (PCD) material may surround at least a portion of the first electrode. Additionally, the first electrode may include an electrically conductive wear resistant contact point that maintains constant contact with a wall of a wellbore. Additionally, the first electrode may measure an impedance of a geological formation during a drilling operation.
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公开(公告)号：US11255143B2
公开(公告)日：2022-02-22
申请号：US16639613
申请日：2018-08-20
发明人： Jonathan D. Marshall , Edward George Parkin , David C. Hoyle , Scott Richard Woolston , Jim Shumway
摘要： A downhole transducer assembly capable of being safely operated at a variety of pressures and depths may include a turbine rotatable by a fluid pressure differential rotationally fixed to a rotor in a generator. To reduce the rotational speed of the turbine and rotor, a pressure regulator may limit a fluid pressure differential by controlling the volumetric flow. In other embodiments, one or more nozzles may be configured to automatically regulate a nozzle diameter, and therefore the pressure drop across the nozzle. In other embodiments, a surge protector may be connected to the generator.
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公开(公告)号：US20180135434A1
公开(公告)日：2018-05-17
申请号：US15352620
申请日：2016-11-16
CPC分类号： H02K7/1823 , E21B4/02 , F03B13/02
摘要： A turbine includes a rotor. The rotor is connected to at least one blade. The blade is at least partially ultrahard material.
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公开(公告)号：US20160320516A1
公开(公告)日：2016-11-03
申请号：US14699053
申请日：2015-04-29
发明人： Brian O. Clark , Jacques Orban , Jonathan D. Marshall , Scott R. Woolston , Daniel Hendricks , Neil Cannon
摘要： Devices and methods for well logging using a wear resistant electrode are provided. A downhole device may include a drill bit, a gauge pad mounted on the drill bit, and a first electrode mounted in the gauge pad. An insulating polycrystalline diamond (PCD) material may surround at least a portion of the first electrode. Additionally, the first electrode may include an electrically conductive wear resistant contact point that maintains constant contact with a wall of a wellbore. Additionally, the first electrode may measure an impedance of a geological formation during a drilling operation.
摘要翻译： 提供了使用耐磨电极进行测井的装置和方法。 井下装置可以包括钻头，安装在钻头上的量规垫和安装在量板中的第一电极。 绝缘多晶金刚石（PCD）材料可围绕第一电极的至少一部分。 另外，第一电极可以包括与井筒的壁保持恒定接触的导电耐磨接触点。 此外，第一电极可以在钻井操作期间测量地质构造的阻抗。
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公开(公告)号：US12018556B2
公开(公告)日：2024-06-25
申请号：US17272370
申请日：2019-08-27
IPC分类号： E21B44/04 , E21B10/43 , E21B10/62 , E21B44/00 , E21B47/013
CPC分类号： E21B44/04 , E21B10/43 , E21B10/62 , E21B44/00 , E21B47/013
摘要： A bit used in a downhole environment has an active element that is movable relative to the bit. The bit is rotated in the downhole environment, and at least one downhole parameter is measured. The at least one downhole parameter is compared against a target parameter value, and when the at least one downhole parameter is beyond a threshold value of the target parameter value, the active element is selectively relative to the bit. Movement of the active element alters the proportion of the weight on the active element as compared to the other cutting structure of the bit. Changing the proportion of weight can be used to reduce the depth of cut of the cutting structure and to reduce or eliminate motor stall or stick-slip behavior.
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