Method and apparatus for releasing a coiled tubing internal...

Details Method and apparatus for releasing a coiled tubing internal... Method and apparatus for releasing a coiled tubing internal...

E - Fixed Constructions

21

B

E21B 23/00 (2006.01) E21B 23/14 (2006.01)

Patent

CA 2711320

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 seat 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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