公开(公告)号：US20230220745A1

公开(公告)日：2023-07-13

申请号：US18002061

申请日：2021-06-25

Applicant: Schlumberger Technology Corporation

Inventor： Justin David Elroy Lamb ,  Garis McCutcheon ,  Francesco Vaghi ,  Hy Phan ,  Marco Quilico ,  Jason Henry

IPC: E21B34/06 ,  E21B34/14

CPC classification number: E21B34/063 ,  E21B34/14 ,  E21B2200/08

Abstract: A safety valve includes a housing having a bore, a flow tube, and a valve closure member. The flow tube resides in the bore, is configured to move telescopically within the bore, and is adapted to shift the valve closure member between a closed position and an open position. The safety valve also includes an annular section between an inner surface of the housing and an outer surface of the flow tube, and means for preventing fluid flowing through the bore from entering the annular section.

公开(公告)号：US20210340837A1

公开(公告)日：2021-11-04

申请号：US17279616

申请日：2019-09-23

Applicant: Schlumberger Technology Corporation

Inventor： Jessica Fox ,  Richard Caminari ,  Steven Hill ,  Jason Henry ,  Emilie Garnier ,  Ignacio Marquez

IPC: E21B33/12 ,  E21B33/128 ,  E21B33/129 ,  E21B34/14

Abstract: A technique facilitates improved sealing with respect to safety valve pistons so as to improve reliable safety valve operation. According to an embodiment, a safety valve piston seal assembly is positioned about a safety valve piston and comprises components which divert a load path to the safety valve piston rather than to susceptible components of the seal assembly. For example, the seal assembly may comprise a load ring and spacers to energize a V-ring when pressure is applied to a metal spring energized (MSE) seal. However, the components are arranged so the load path is diverted to the safety valve piston when pressure occurs behind the V-ring instead of allowing the loading to act against the MSE seal.

公开(公告)号：US11174702B2

公开(公告)日：2021-11-16

申请号：US16639288

申请日：2018-08-15

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Marco Quilico ,  Jason Henry ,  Ignacio Marquez ,  Garis McCutcheon ,  Geoffrey Pinard

IPC: E21B34/08 ,  E21B34/12

Abstract: A downhole tool includes an upper flow tube connected to a lower flow tube, an upper flapper sub-assembly including an upper flapper, and a lower flapper sub-assembly including a lower flapper. The upper and lower flapper sub-assemblies are installed with respect to the upper and lower flow tubes in an “O” configuration such that the upper and lower flapper sub-assemblies are in a closed position. The upper and lower flapper sub-assemblies are capable of being independently actuated. The upper and lower flow tubes remain stationary when the upper flapper sub-assembly or the lower flapper sub-assembly is actuated from the closed position to an open position.

公开(公告)号：US12134954B2

公开(公告)日：2024-11-05

申请号：US18002061

申请日：2021-06-25

Applicant: Schlumberger Technology Corporation

Inventor： Justin David Elroy Lamb ,  Garis Mccutcheon ,  Francesco Vaghi ,  Hy Phan ,  Marco Quilico ,  Jason Henry

IPC: E21B34/06 ,  E21B34/12 ,  E21B34/14

Abstract: A safety valve includes a housing having a bore, a flow tube, and a valve closure member. The flow tube resides in the bore, is configured to move telescopically within the bore, and is adapted to shift the valve closure member between a closed position and an open position. The safety valve also includes an annular section between an inner surface of the housing and an outer surface of the flow tube, and means for preventing fluid flowing through the bore from entering the annular section.

公开(公告)号：US11761301B2

公开(公告)日：2023-09-19

申请号：US17279616

申请日：2019-09-23

Applicant: Schlumberger Technology Corporation

Inventor： Jessica Fox ,  Richard Caminari ,  Steven Hill ,  Jason Henry ,  Emilie Garnier ,  Ignacio Marquez

IPC: E21B34/14 ,  E21B34/08 ,  E21B33/12 ,  F16J15/16 ,  F16J15/3236 ,  F16K41/08 ,  F16J15/00

CPC classification number: E21B34/14 ,  E21B33/1208 ,  E21B34/08 ,  F16K41/08 ,  F16J15/002 ,  F16J15/166 ,  F16J15/3236

Abstract: A technique facilitates improved sealing with respect to safety valve pistons so as to improve reliable safety valve operation. According to an embodiment, a safety valve piston seal assembly is positioned about a safety valve piston and comprises components which divert a load path to the safety valve piston rather than to susceptible components of the seal assembly. For example, the seal assembly may comprise a load ring and spacers to energize a V-ring when pressure is applied to a metal spring energized (MSE) seal. However, the components are arranged so the load path is diverted to the safety valve piston when pressure occurs behind the V-ring instead of allowing the loading to act against the MSE seal.

公开(公告)号：US20200256155A1

公开(公告)日：2020-08-13

申请号：US16639288

申请日：2018-08-15

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Marco Quilico ,  Jason Henry ,  Ignacio Marquez ,  Garis McCutcheon ,  Geoffrey Pinard

IPC: E21B34/08 ,  E21B34/12

Abstract: A downhole tool includes an upper flow tube connected to a lower flow tube, an upper flapper sub-assembly including an upper flapper, and a lower flapper sub-assembly including a lower flapper. The upper and lower flapper sub-assemblies are installed with respect to the upper and lower flow tubes in an “O” configuration such that the upper and lower flapper sub-assemblies are in a closed position. The upper and lower flapper sub-assemblies are capable of being independently actuated. The upper and lower flow tubes remain stationary when the upper flapper sub-assembly or the lower flapper sub-assembly is actuated from the closed position to an open position.