发明名称 |
REMOTELY OPERATED ISOLATION VALVE |
摘要 |
A method of operating an isolation valve can include continuously transmitting a signal to a detector section, and a control system operating an actuator in response to the detector section detecting cessation of the signal transmission. A well system can include an isolation valve which selectively permits and prevents fluid communication between sections of a wellbore, a remotely positioned signal transmitter, and the isolation valve including a control system which operates an actuator in response to detection of a signal by a detector section. Another well system can include an isolation valve interconnected in a tubular string, and the tubular string being cemented in a wellbore, with cement being disposed in an annulus formed radially between the isolation valve and the wellbore. |
申请公布号 |
WO2011119448(A2) |
申请公布日期 |
2011.09.29 |
申请号 |
WO2011US29116 |
申请日期 |
2011.03.19 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC.;GODFREY, CRAIG, W.;SKINNER, NEAL, G. |
发明人 |
GODFREY, CRAIG, W.;SKINNER, NEAL, G. |
分类号 |
E21B34/08;E21B21/10;E21B43/12 |
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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