发明名称 |
TUBING PRESSURE OPERATED DOWNHOLE FLUID FLOW CONTROL SYSTEM |
摘要 |
A downhole flow control system utilizes a tubing pressure operated valve to selectively open and close fluid flow across the system. The tubing pressure operated valve includes a piston responsive to tubing pressure, and a valve element responsive to piston movement. The valve element can be moved rotationally, longitudinally, or both, in response to the piston movement. The valve is movable between a closed and at least one open position. The piston and valve elements can be releasably attachable, such as by a one-way ratchet. The valve element can be a rotating valve operable by a J-slot mechanism to rotate to multiple positions in response to movement of the piston element. |
申请公布号 |
EP2941526(A4) |
申请公布日期 |
2016.11.23 |
申请号 |
EP20130878973 |
申请日期 |
2013.03.21 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
PICKLE, BRAD;FRIPP, MICHAEL |
分类号 |
E21B34/14;E21B34/10;E21B43/14 |
主分类号 |
E21B34/14 |
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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