发明名称 |
WELL TOOLS INCORPORATING VALVES OPERABLE BY LOW ELECTRICAL POWER INPUT |
摘要 |
Well tools including valves operable by low electrical input. One well tool includes a valve which controls fluid communication between pressure regions in a well, the valve including a rotatable member which is biased to rotate, and a brake or clutch which prevents rotation of the member. Another valve includes a barrier which separates reactants, with the valve being operable in response to the barrier being opened and the reactants thereby reacting with each other. Yet another valve includes a barrier which separates the pressure regions, and a control circuit which heats the barrier to a weakened state. Another valve includes a member displaceable between open and closed positions, a restraining device which resists displacement of the member, and a control device which degrades or deactivates the restraining device and thereby permits the member to displace between its open and closed positions, in response to receipt of a predetermined signal. |
申请公布号 |
US2012241143(A1) |
申请公布日期 |
2012.09.27 |
申请号 |
US201213489504 |
申请日期 |
2012.06.06 |
申请人 |
WRIGHT ADAM D.;FRIPP MICHAEL L.;FINK KEVIN D.;PERKINS DONALD;WILLIAMSON JIMMIE R.;KALMAN MARK D.;HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
WRIGHT ADAM D.;FRIPP MICHAEL L.;FINK KEVIN D.;PERKINS DONALD;WILLIAMSON JIMMIE R.;KALMAN MARK D. |
分类号 |
E21B34/16;E21B34/00;E21B34/06 |
主分类号 |
E21B34/16 |
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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