发明名称 |
aparelho atuador de fundo de poço |
摘要 |
A downhole actuator apparatus that selectively maintains a pressure differential between two pressure regions in a well. The apparatus includes a body defining first and second chambers. A piston is slidably disposed in the body and is selectively moveable between first and second positions. A barrier is disposed in the body to selectively separate the first and second chambers. A fluid is disposed in the first chamber between the barrier and the piston. A control system that is at least partially disposed within the body is operable to generate an output signal responsive to receipt of a predetermined input signal. The output signal is operable to create a failure of the barrier such that at least a portion of the fluid flows from the first chamber to the second chamber and the piston moves from the first position to the second position. |
申请公布号 |
BR112012027395(A2) |
申请公布日期 |
2016.08.09 |
申请号 |
BR20121127395 |
申请日期 |
2011.04.14 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
ADAM WRIGHT;DONALD HERBERT PERKINS;MICHAEL LINLEY FRIPP;SCOTT LUKE MILLER |
分类号 |
E21B47/12;E21B23/00;G01V3/00 |
主分类号 |
E21B47/12 |
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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