Invention Application
US20120145404A1 CONTROLLING FLOW BETWEEN A WELLBORE AND AN EARTH FORMATION 失效
控制井与地球形成之间的流动

CONTROLLING FLOW BETWEEN A WELLBORE AND AN EARTH FORMATION
Abstract:
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.
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