公开(公告)号：US11988054B2

公开(公告)日：2024-05-21

申请号：US17905689

申请日：2021-03-05

Applicant: Schlumberger Technology Corporation

Inventor： Samuel Roselier ,  Romain Neveu ,  Julie Leduc ,  Francois Bajart

IPC: E21B23/04

CPC classification number: E21B23/0413

Abstract: A technique facilitates pressure application downhole by locking a ball in place to prevent it from unseating even if the pressure is bled off. A ball seat is constructed with a locking feature for effectively capturing and retaining the ball once the ball is seated in the ball seat under sufficient pressure. According to an embodiment, the ball seat may be mounted at a desired position along an internal flow passage of a well string component. The ball seat comprises a throat section which is formed of a ductile material arranged in a suitable structure to enable a desired deformation upon receiving the ball under sufficient pressure. As the ball is pressed into the throat section, the material of the throat section deforms and partially springs back to resist movement of the ball in the uphole direction, thus capturing the ball in both the uphole direction and the downhole direction.

公开(公告)号：US20230084218A1

公开(公告)日：2023-03-16

申请号：US17905689

申请日：2021-03-05

Applicant: Schlumberger Technology Corporation

Inventor： Samuel Roselier ,  Romain Neveu ,  Julie Leduc ,  Francois Bajart

IPC: E21B23/04

Abstract: A technique facilitates pressure application downhole by locking a ball in place to prevent it from unseating even if the pressure is bled off. A ball seat is constructed with a locking feature for effectively capturing and retaining the ball once the ball is seated in the ball seat under sufficient pressure. According to an embodiment, the ball seat may be mounted at a desired position along an internal flow passage of a well string component. The ball seat comprises a throat section which is formed of a ductile material arranged in a suitable structure to enable a desired deformation upon receiving the ball under sufficient pressure. As the ball is pressed into the throat section, the material of the throat section deforms and partially springs back to resist movement of the ball in the uphole direction, thus capturing the ball in both the uphole direction and the downhole direction.

公开(公告)号：US20240337172A1

公开(公告)日：2024-10-10

申请号：US18293043

申请日：2022-07-26

Applicant: Schlumberger Technology Corporation

Inventor： Samuel Roselier ,  Romain Neveu ,  Robin Laupie ,  Gwenael Tanguy

IPC: E21B43/10 ,  E21B23/01

CPC classification number: E21B43/106 ,  E21B23/01 ,  E21B43/105

Abstract: A technique facilitates improved anchoring of expandable well tools along a wellbore or other type of borehole. According to an embodiment, a well tool is sized for placement along a well string. The well tool comprises a tubing and an expandable tubular coupled to the tubing. The expandable tubular is plastically deformable in a radially outward direction when sufficient pressure is applied to an interior of the expandable tubular. The well tool also comprises at least one anchoring ring disposed circumferentially about the expandable tubular. The anchoring ring is constructed with at least one weak point which breaks during expansion of the expandable tubular. Breakage at this weak point enables movement of the anchoring ring in a radially outward direction without elongation of the anchoring ring.

公开(公告)号：US20250075588A1

公开(公告)日：2025-03-06

申请号：US18720970

申请日：2023-01-23

Applicant: Schlumberger Technology Corporation

Inventor： Samuel Roselier ,  Romain Neveu ,  Robin Laupie ,  Nicolas Saltel ,  Dinesh Patel

IPC: E21B33/122 ,  E21B34/06

Abstract: A technique facilitates improved actuation and use of packers disposed along a well string and placed in a borehole, e.g. a wellbore. A plurality of packers may be disposed along a base pipe, e.g. a production tubing. Each packer has an expandable sleeve which may be expanded into a fully expanded configuration establishing a secure, sealing engagement with a surrounding wall. e.g. a surrounding wellbore wall. Additionally, a hydrolock prevention valve system comprises a valve which may be actuated to allow or block the flow of fluid from an annular region or regions between the packers.