公开(公告)号：US11274522B2

公开(公告)日：2022-03-15

申请号：US16707746

申请日：2019-12-09

Applicant: Schlumberger Technology Corporation

Inventor： Chao Wang ,  Julien Bost ,  Vincent Nicolas ,  Abbigail Ullrich ,  Quangen Du

IPC: E21B34/10 ,  E21B47/06 ,  E21B47/12 ,  E21B49/08 ,  E21B33/124 ,  E21B43/116

Abstract: An apparatus and method for using a pressure-powered tool to perform a downhole operation in a well determine the operating condition of the tool based on indications of pressure in a region associated with the tool. If the pressure indications are indicative of an undesired operating condition, corrective action is taken, such as mechanically shifting the tool or rupturing the rupture disc of an electric rupture disc (ERD) system to shift the tool to a desired operating condition.

公开(公告)号：US11067106B2

公开(公告)日：2021-07-20

申请号：US15989238

申请日：2018-05-25

Applicant: Schlumberger Technology Corporation

Inventor： Chao Wang ,  Julien Bost ,  Abbigail Ullrich

IPC: F15B20/00 ,  E21B34/10 ,  E21B33/12

Abstract: A system and method for providing redundancy in hydraulic circuits in multi-cycle hydraulic tools is described. The problems of dysfunctional hydraulic tool due to the failure of electromechanical actuators are addressed by providing redundant actuators and associated circuitry design.

公开(公告)号：US20180051535A1

公开(公告)日：2018-02-22

申请号：US15242063

申请日：2016-08-19

Applicant: Schlumberger Technology Corporation

Inventor： Chao Wang ,  Julien Bost ,  Vincent Nicolas ,  Abbigail Ullrich ,  Quangen Du

IPC: E21B34/10 ,  E21B49/08 ,  E21B47/06 ,  E21B33/124 ,  E21B43/116 ,  E21B47/12

CPC classification number: E21B34/10 ,  E21B33/124 ,  E21B43/116 ,  E21B47/06 ,  E21B47/12 ,  E21B49/08 ,  E21B2034/002 ,  E21B2034/007

Abstract: An apparatus and method for using a pressure-powered tool to perform a downhole operation in a well determine the operating condition of the tool based on indications of pressure in a region associated with the tool. If the pressure indications are indicative of an undesired operating condition, corrective action is taken, such as mechanically shifting the tool or rupturing the rupture disc of an electric rupture disc (ERD) system to shift the tool to a desired operating condition.