CONTROLLING FLOW BETWEEN A WELLBORE AND AN EARTH FORMATION
摘要
A valve for controlling flow in a subterranean well can include a working fluid and a closure member which rotates in response to phase change in the working fluid. A well system can include a valve which controls flow between a wellbore and a tubular string, with the valve including a working fluid and a closure member which rotates in response to phase change in the working fluid. Rotation of the closure member can displace a seat relative to a plug of a check valve.
申请公布号
CA2819711(C)
申请公布日期
2016.05.24
申请号
CA20112819711
申请日期
2011.12.07
申请人
HALLIBURTON ENERGY SERVICES, INC.
发明人
SCHULTZ, ROGER L.;PIPKIN, ROBERT L.;CAVENDER, TRAVIS W.