Heavy duty logging and perforating cablehead for coiled tubing

Details Heavy duty logging and perforating cablehead for coiled tubing Heavy duty logging and perforating cablehead for coiled tubing

E - Fixed Constructions

21

B

E21B 23/14 (2006.01) E21B 17/02 (2006.01) E21B 17/06 (2006.01) E21B 17/20 (2006.01)

Patent

CA 2291562

A heavy-duty logging and perforating cablehead for coiled tubing. The cablehead includes an upper and lower housing which are shearably connected by shear pins. An actuating piston is slidably disposed in the housing. When the piston is in a running position, the piston holds a lug in locking engagement with the upper and lower housings such that the shear pins cannot be sheared. When the piston is moved to a releasing position, the lugs are released so that the upper and lower housings may be separated, thereby shearing the shear pins. Actuation of the piston is accomplished by pumping fluid down the coiled tubing and through a flow path in the cablehead and by applying pressure to the piston.

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