公开(公告)号：US20130180711A1

公开(公告)日：2013-07-18

申请号：US13739033

申请日：2013-01-11

申请人： BP CORPORATION NORTH AMERICA INC.

发明人： Mark Francis Barrilleaux

IPC分类号： E21B34/08

CPC分类号： E21B34/08 ,  E21B34/06 ,  E21B47/06

摘要： Methods and systems for operating a valve control system to control a valve in a wellbore include identifying a differential pressure arrangement of a plurality of differential pressure arrangements for actuating the valve to a desired state based on a differential pressure of at least two pressure sources of the wellbore and a present state of the valve. Once identified, the differential pressure arrangement of the at least two pressure sources are utilized to initiate actuation of the valve from the present state to the desired state.

摘要翻译： 用于操作阀控制系统以控制井眼中的阀的方法和系统包括识别用于将阀致动到期望状态的多个差压装置的压差布置，基于至少两个压力源的压差 井筒和阀门的现状。 一旦被识别，使用至少两个压力源的差压装置来启动阀从当前状态到期望状态。

公开(公告)号：US20180106140A1

公开(公告)日：2018-04-19

申请号：US15567321

申请日：2016-04-15

申请人： BP Corporation North America Inc.

发明人： Mark Francis Barrilleaux ,  David Foti ,  John D. Henderson ,  Jerry Henkener ,  Jerome Leonard ,  Kyle Robinson ,  Mark Waldron

IPC分类号： E21B47/00 ,  E21B43/10 ,  E21B47/01

CPC分类号： E21B47/0001 ,  E21B43/101 ,  E21B47/0006 ,  E21B47/011

摘要： A system includes a tubular member (60) including a radially outer surface (60c) and a sensor assembly (128). The sensor assembly includes a strain sensor coupled to the radially outer surface. In addition, the sensor assembly includes a first coating having (134) a first hardness and a first tensile strength. The first coating encases the strain sensor (131,130) and at least part (64) of the outer surface. Further, the sensor assembly includes a second coating (136) having a second hardness that is greater than the first hardness and a second tensile strength that is greater than the first tensile strength. The second coating encases the first coating and at least another part (68) of the radially outer surface.