发明名称 STRAIGHT-BORE BACK PRESSURE VALVE
摘要 A system in some embodiments includes a back pressure valve. The back pressure valve includes a body, a plunger disposed internal to the body, and a friction member disposed about the exterior of the body. The friction member is configured to expand radially to contact an internal surface of a bore. In some embodiments, a method includes disposing a back pressure valve into a straight bore and expanding a friction member of the back pressure valve radially into contact with an internal surface of the straight bore.
申请公布号 US2014182863(A1) 申请公布日期 2014.07.03
申请号 US201314144478 申请日期 2013.12.30
申请人 Cameron International Corporation 发明人 Nguyen Dennis P.;Contreras Maria R.
分类号 E21B34/02 主分类号 E21B34/02
代理机构 代理人
主权项 1. A system, comprising: a back pressure valve running tool, comprising: a stem configured to engage a back pressure valve plunger of a back pressure valve;a protrusion configured to engage a lock ring of the back pressure valve; anda hydraulic port configured to provide a fluid path to a complementary hydraulic port of the back pressure valve.
地址 Houston TX US