Method and apparatus for releasing a coiled tubing internal conduit from a bottom hole assembly |
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| 申请号 | EP10171253.7 | 申请日 | 2010-07-29 | 公开(公告)号 | EP2295706A3 | 公开(公告)日 | 2014-06-25 |
| 申请人 | BJ Services Company LLC; | 发明人 | Sach, Manfred; | ||||
| 摘要 | A method and apparatus for releasing a coiled tubing internal line from a bottom hole assembly. The internal line may not have strength sufficient to permit the application of a tension force at the surface to disconnect the internal line from the bottom hole assembly. The bottom hole assembly may include a ball scat adapted to retain a ball permitting the application of a pressure differential above and below the ball seat. An anchor assembly connected to the internal line may be adapted to disconnect from the bottom hole assembly upon the application of predetermined pressure differential. A predetermined pressure differential may be used to shear a portion of the internal line releasing an upper portion of the internal line from the bottom hole assembly. | ||||||
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| 说明书全文 | |||||||
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