公开(公告)号：US20230400118A1

公开(公告)日：2023-12-14

申请号：US18455996

申请日：2023-08-25

Applicant: Schlumberger Technology Corporation

Inventor： Bo Chen ,  Brian Walther ,  Rannie Dong

IPC: F16K31/163 ,  F16K11/044 ,  F16K31/363

CPC classification number: F16K31/163 ,  F16K11/044 ,  F16K31/363 ,  E21B34/06

Abstract: A system includes a compression spring having a latch sleeve, a piston rod including a groove section, and a ratchet assembly that progressively moves the piston rod in a downward direction. A latch collet on the latch sleeve sits on the groove section of the piston rod in a first position of the system. The latch collet locks a spring force of the compression spring as the ratchet assembly progressively moves the piston rod in the downward direction. The latch collet becomes unsupported from the groove section when the piston rod has progressively moved a predetermined distance, causing the compression spring to release and provide a push force that actuates a hydraulic valve from the first position to a second position.

公开(公告)号：US20150000393A1

公开(公告)日：2015-01-01

申请号：US14319520

申请日：2014-06-30

Applicant: Schlumberger Technology Corporation

Inventor： Ramon Hernandez Marti ,  Bo Chen

IPC: G01V11/00 ,  G01V13/00

CPC classification number: G01V11/002 ,  E21B47/011 ,  G01V13/00 ,  Y10T29/49002

Abstract: The present disclosure introduces pressure-equalized packaging for electronic sensors utilized in conjunction with downhole tools and/or other extreme environments. Such sensors may be operable to detect, sense, and/or measure a parameter, such as may be associated with the downhole tool, or pressurized fluid in which the downhole tool is at least partially submerged, or a subterranean formation adjacent the downhole tool. A housing couples the sensor to a component of the downhole tool. The housing includes an equalizer operable to substantially equalize a first pressure internal to the housing with a second pressure external to the housing.

Abstract translation: 本公开引入与井下工具和/或其他极端环境相结合使用的电子传感器的压力均衡包装。 这样的传感器可操作以检测，感测和/或测量诸如可能与井下工具相关联的参数，或其中井下工具至少部分浸没的加压流体，或与井下工具相邻的地下地层。 壳体将传感器耦合到井下工具的部件。 壳体包括均衡器，其可操作以基本上使壳体内部的第一压力与壳体外部的第二压力相等。

公开(公告)号：US20240401434A1

公开(公告)日：2024-12-05

申请号：US18694517

申请日：2022-10-21

Applicant: Schlumberger Technology Corporation

Inventor： William Ryan Sisak ,  Bo Chen ,  Brian Walther

IPC: E21B34/14

Abstract: A shifting tool for use with an isolation valve. The shifting tool may include a mandrel and a first shifting assembly positioned about the mandrel. The first shifting assembly may include a shifting member engageable with a profile of the isolation valve to shift the isolation valve into at least one of an open position or a closed position, a sleeve engageable with the shifting member to prevent disengagement between the shifting member and the isolation valve, and a detent mechanism engageable with the shifting member to prevent disengagement between the sleeve and the shifting member. The detent mechanism may engage with the shifting member when the shifting tool initially engages with an isolation valve and relative movement of the shifting tool with respect to the isolation valve may disengage the detent mechanism from the shifting member when the detent mechanism reaches predetermined location within isolation valve.

公开(公告)号：US11952864B2

公开(公告)日：2024-04-09

申请号：US18004360

申请日：2021-07-07

Applicant: Schlumberger Technology Corporation

Inventor： Brian Walther ,  Bo Chen

IPC: E21B34/08 ,  E21B34/14

CPC classification number: E21B34/08 ,  E21B34/14 ,  E21B2200/04

Abstract: An isolation valve includes a ball valve element, an actuation section to rotate the ball valve element, and a trigger section that actuates the actuation section in response to a pressure differential. The actuation section includes an actuation mandrel, a piston housing that at least partially encases the actuation mandrel, a collet piston, and a holding collet. The piston housing and the actuation mandrel define a hydraulic chamber, and the collet piston separates the hydraulic chamber into an upper hydraulic chamber and a lower hydraulic chamber. The holding collet supports the collet piston during a stroke of the actuation mandrel that is triggered by the trigger section. The collet piston is configured to assume a rest position on the actuation mandrel before and during the stroke of the actuation mandrel, and the collet piston is configured to disengage from the actuation mandrel after the stroke of the actuation mandrel.

公开(公告)号：US20240368968A1

公开(公告)日：2024-11-07

申请号：US18552475

申请日：2022-03-23

Applicant: Schlumberger Technology Corporation

Inventor： Maria Fernanda Tafur ,  Bo Chen ,  Yann Dufour ,  Brian Walther ,  Brad Swenson ,  Steven E. Buchanan

IPC: E21B34/14

Abstract: A redundant trigger section that actuates a device between operational positions in response to a controlled signal includes a housing including an internal through passage and a plurality of chambers formed in a wall of the housing. a pilot piston disposed within the internal through passage, an actuating piston connected to the pilot piston, and a plurality of triggers connected to the actuating piston. Upon receipt of the controlled signal by a first tubing pressure chamber of the plurality of chambers, at least one trigger of the plurality of triggers activates the actuating piston, which pushes the pilot piston within the internal through passage from an initial position to a final position.
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公开(公告)号：US20230279737A1

公开(公告)日：2023-09-07

申请号：US18004360

申请日：2021-07-07

Applicant: Schlumberger Technology Corporation

Inventor： Brian Walther ,  Bo Chen

IPC: E21B34/08

CPC classification number: E21B34/08 ,  E21B2200/04

Abstract: An isolation valve includes a ball valve element, an actuation section to rotate the ball valve element, and a trigger section that actuates the actuation section in response to a pressure differential. The actuation section includes an actuation mandrel, a piston housing that at least partially encases the actuation mandrel, a collet piston, and a holding collet. The piston housing and the actuation mandrel define a hydraulic chamber, and the collet piston separates the hydraulic chamber into an upper hydraulic chamber and a lower hydraulic chamber. The holding collet supports the collet piston during a stroke of the actuation mandrel that is triggered by the trigger section. The collet piston is configured to assume a rest position on the actuation mandrel before and during the stroke of the actuation mandrel, and the collet piston is configured to disengage from the actuation mandrel after the stroke of the actuation mandrel.

公开(公告)号：US20230213112A1

公开(公告)日：2023-07-06

申请号：US17995939

申请日：2021-04-19

Applicant: Schlumberger Technology Corporation

Inventor： Bo Chen ,  Brian Walther ,  Rannie Dong

IPC: F16K31/163 ,  F16K11/044 ,  F16K31/363

CPC classification number: F16K31/163 ,  F16K11/044 ,  F16K31/363

Abstract: A system includes a compression spring having a latch sleeve, a piston rod including a groove section, and a ratchet assembly that progressively moves the piston rod in a downward direction. A latch collet on the latch sleeve sits on the groove section of the piston rod in a first position of the system. The latch collet locks a spring force of the compression spring as the ratchet assembly progressively moves the piston rod in the downward direction. The latch collet becomes unsupported from the groove section when the piston rod has progressively moved a predetermined distance, causing the compression spring to release and provide a push force that actuates a hydraulic valve from the first position to a second position.

公开(公告)号：US12276352B2

公开(公告)日：2025-04-15

申请号：US18455996

申请日：2023-08-25

Applicant: Schlumberger Technology Corporation

Inventor： Bo Chen ,  Brian Walther ,  Rannie Dong

IPC: F16K31/163 ,  E21B34/06 ,  E21B34/08 ,  F16K11/044 ,  F16K31/363

Abstract: A system includes a compression spring having a latch sleeve, a piston rod including a groove section, and a ratchet assembly that progressively moves the piston rod in a downward direction. A latch collet on the latch sleeve sits on the groove section of the piston rod in a first position of the system. The latch collet locks a spring force of the compression spring as the ratchet assembly progressively moves the piston rod in the downward direction. The latch collet becomes unsupported from the groove section when the piston rod has progressively moved a predetermined distance, causing the compression spring to release and provide a push force that actuates a hydraulic valve from the first position to a second position.

公开(公告)号：US20240353023A1

公开(公告)日：2024-10-24

申请号：US18760634

申请日：2024-07-01

Applicant: Schlumberger Technology Corporation

Inventor： Bo Chen ,  Brian Walther

IPC: F16K31/163 ,  E21B21/10 ,  E21B23/00 ,  E21B34/10 ,  E21B34/14 ,  F15B15/06 ,  F16K17/04 ,  F16K31/122

CPC classification number: F16K31/163 ,  E21B21/10 ,  E21B23/004 ,  E21B34/10 ,  E21B34/103 ,  E21B34/14 ,  F15B15/06 ,  F16K31/122 ,  F16K17/04

Abstract: A core rod has internal and external profiles disposed in a housing assembly. A power spring in cooperation with the core rod within the housing assembly is connected to a power spring stopper that is fixed to the housing assembly with at least one shear screw. An inner axial cycling piston bar includes an external profile for mating engagement with the internal profile of the core rod. The inner axial cycling piston bar is connected to a piston in cooperation with a cycling spring, and the piston is configured to move in an upward direction. When a downward force exerted by the cycling spring exceeds the upwardly applied cycling force, the piston, the inner axial cycling piston bar, and the external profile move in a downward direction, thereby causing the core rod to move an incremental distance in the downward direction, which compresses the power spring by the incremental distance.

公开(公告)号：US11774002B2

公开(公告)日：2023-10-03

申请号：US17995939

申请日：2021-04-19

Applicant: Schlumberger Technology Corporation

Inventor： Bo Chen ,  Brian Walther ,  Rannie Dong

IPC: F16K31/163 ,  F16K31/363 ,  F16K11/044 ,  E21B34/06 ,  E21B34/08

CPC classification number: F16K31/163 ,  F16K11/044 ,  F16K31/363 ,  E21B34/06 ,  E21B34/08

Abstract: A system includes a compression spring having a latch sleeve, a piston rod including a groove section, and a ratchet assembly that progressively moves the piston rod in a downward direction. A latch collet on the latch sleeve sits on the groove section of the piston rod in a first position of the system. The latch collet locks a spring force of the compression spring as the ratchet assembly progressively moves the piston rod in the downward direction. The latch collet becomes unsupported from the groove section when the piston rod has progressively moved a predetermined distance, causing the compression spring to release and provide a push force that actuates a hydraulic valve from the first position to a second position.