发明名称 |
Downhole valve assembly, actuation device for a downhole valve assembly and method of controlling fluid flow downhole |
摘要 |
A downhole valve assembly including a valve mounted in a tubular body, the valve moveable between an open and closed position. Movement is achieved by a fluid operated valve actuation mechanism located downhole of the valve having a fluid inlet port located uphole of the valve. A method of controlling fluid flow downhole is also described allowing the valve to be moved between the open and closed positions and between closed and open positions. |
申请公布号 |
EP2022933(A3) |
申请公布日期 |
2017.03.01 |
申请号 |
EP20080252522 |
申请日期 |
2008.07.24 |
申请人 |
Halliburton Manufacturing & Services Limited |
发明人 |
Burnett, William Stephen |
分类号 |
E21B34/10;E21B29/00;E21B34/00 |
主分类号 |
E21B34/10 |
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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