发明名称 |
Flow reversing apparatus and methods of use |
摘要 |
Apparatus and methods for selectively and safely reversing flow in coiled tubing used for wellbore cleanouts are disclosed. One apparatus includes a section of coiled tubing having a main flow channel, at least two flow-preventing valves in the section of coiled tubing, each adapted to close the main flow channel upon attempted flow reversal; and at least one actuator adapted to deter closing of the flow-preventing valves. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims.
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申请公布号 |
US2006278395(A1) |
申请公布日期 |
2006.12.14 |
申请号 |
US20050151605 |
申请日期 |
2005.06.13 |
申请人 |
KENISON MICHAEL H;GAY MICHAEL G;BUCHER ROBERT;AFROZ MAHMUDA |
发明人 |
KENISON MICHAEL H.;GAY MICHAEL G.;BUCHER ROBERT;AFROZ MAHMUDA |
分类号 |
E21B37/08 |
主分类号 |
E21B37/08 |
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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