发明名称 |
SUBTERRANEAN WELL VALVE ACTIVATED WITH DIFFERENTIAL PRESSURE |
摘要 |
<p>A method of actuating a valve in a well can include storing energy as a result of a differential pressure across a closed closure device of the valve, and releasing at least a portion of the stored energy while opening the closure device. A valve for use in a well can include a closure device, a biasing device, and an actuator which stores energy in the biasing device in response to a pressure differential across the closure device. A well system can include a tubular string, and a valve which controls fluid flow through the tubular string. The valve may include a closure device and an actuator which actuates the valve at least partially in response to a pressure differential across the closure device.</p> |
申请公布号 |
EP2553215(A1) |
申请公布日期 |
2013.02.06 |
申请号 |
EP20110766345 |
申请日期 |
2011.03.12 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
VICK, JR., JAMES, D.;WILLIAMSON, JR., JIMMIE, R. |
分类号 |
E21B34/08;E21B21/10;E21B43/12;F16K17/02 |
主分类号 |
E21B34/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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