发明名称 PILOTING ACTUATOR VALVE FOR SUBTERRANEAN FLOW CONTROL
摘要 <p>A piloting actuator valve controls flow in a well. The piloting actuator valve is combined with a downhole completion and utilizes a pilot valve to control actuation of a main valve. A controllable actuator is coupled to the pilot valve and enables selective control over the pilot valve which, in turn, controls the state of the main valve.</p>
申请公布号 CA2517408(C) 申请公布日期 2010.01.26
申请号 CA20052517408 申请日期 2005.08.29
申请人 SCHLUMBERGER CANADA LIMITED 发明人 OCALAN, MURAT
分类号 E21B34/10;F16K31/42;H01F7/16 主分类号 E21B34/10
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