发明名称 |
Valve device and associated methods of selectively communicating between an interior and an exterior of a tubular string |
摘要 |
A valve device and associated methods of selectively communicating between an interior and an exterior of a tubular string. A valve device includes an openable and closable flowpath for selectively permitting and preventing flow between an interior and exterior of the valve device, and a lock assembly which prevents the flowpath from being opened greater than a predetermined number of times. A method of testing at least one annular seal in an annulus formed between a tubular string and a wellbore wall includes the steps of: sealingly engaging the annular seal to thereby prevent flow through the annulus across the annular seal; and applying a pressure differential across the annular seal to thereby test the annular seal, the pressure differential being applied via a valve device interconnected in the tubular string.
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申请公布号 |
US7909095(B2) |
申请公布日期 |
2011.03.22 |
申请号 |
US20080247115 |
申请日期 |
2008.10.07 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
RICHARDS WILLIAM M.;HENDERSON WILLIAM D. |
分类号 |
E21B47/10;E21B33/122;E21B34/06 |
主分类号 |
E21B47/10 |
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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