公开(公告)号：US12049793B2

公开(公告)日：2024-07-30

申请号：US18048210

申请日：2022-10-20

申请人： Schlumberger Technology Corporation

发明人： Edward George Parkin ,  Christopher Rowe ,  Cecily Millwater

IPC分类号： E21B21/08 ,  E21B7/06 ,  E21B47/022 ,  E21B47/24

CPC分类号： E21B21/08 ,  E21B7/06 ,  E21B47/022 ,  E21B47/24

摘要： A pressure pulse generator and an RSS may change the pressure of a fluid flow through a BHA. If the dogleg at the BHA is less than a target dogleg, then the pressure pulse generator goes into pass-through mode to increase the pressure at the RSS and thereby increase a pad force of the RSS steering pads, increasing the severity of the dogleg. If a downhole tool is stuck, then the pressure pulse generator and the RSS are simultaneously actuated to unstick the downhole tool. The RSS is used to generate and transmit pressure pulses to a downhole tool.

公开(公告)号：US11913307B2

公开(公告)日：2024-02-27

申请号：US17639922

申请日：2020-09-02

申请人： Schlumberger Technology Corporation

发明人： Edward Richards ,  Christopher Rowe

IPC分类号： E21B34/10 ,  E21B23/04

CPC分类号： E21B34/10 ,  E21B23/04

摘要： A pressure control valve for a downhole drilling system includes a choke body and a restrictor body. The choke body is installed in the bore of a housing. A fluid flow flows through an orifice in the choke body. Changing a distance between the choke body and the restrictor body changes a pressure differential uphole of the pressure control valve.

公开(公告)号：US20220341287A1

公开(公告)日：2022-10-27

申请号：US17639922

申请日：2020-09-02

申请人： Schlumberger Technology Corporation

发明人： Edward Richards ,  Christopher Rowe

IPC分类号： E21B34/10 ,  E21B23/04

摘要： A pressure control valve for a downhole drilling system includes a choke body and a restrictor body. The choke body is installed in the bore of a housing. A fluid flow flows through an orifice in the choke body Changing a distance between the choke body and the restrictor body changes a pressure differential uphole of the pressure control valve.

公开(公告)号：US20230125784A1

公开(公告)日：2023-04-27

申请号：US18048210

申请日：2022-10-20

申请人： Schlumberger Technology Corporation

发明人： Edward George Parkin ,  Christopher Rowe ,  Cecily Millwater

IPC分类号： E21B47/18 ,  E21B7/06 ,  E21B47/022

摘要： A pressure pulse generator and an RSS may change the pressure of a fluid flow through a BHA. If the dogleg at the BHA is less than a target dogleg, then the pressure pulse generator goes into pass-through mode to increase the pressure at the RSS and thereby increase a pad force of the RSS steering pads, increasing the severity of the dogleg. If a downhole tool is stuck, then the pressure pulse generator and the RSS are simultaneously actuated to unstick the downhole tool. The RSS is used to generate and transmit pressure pulses to a downhole tool.