E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 31/12 (2006.01) E21B 23/00 (2006.01) E21B 23/04 (2006.01) E21B 43/10 (2006.01)
Patent
CA 2167857
A running tool particularly useful for running liners on coiled tubing is disclosed. A torque-transmitting outer sleeve is employed which initially traps the collets. The collets are engaged to the liner by relative mechanical movement and thereafter lock in a secured position to the liner, regardless of whether the liner is placed in tension or compression by the running tool. Release is accomplished by letting down weight on the running tool, coupled with hydraulic pressure to shear a pin securing the collet mechanism. Upon such a hydraulic release with the pin sheared, the outer torque sleeve shifts downwardly to prevent relatching. Torque is transmitted through the outer torque sleeved and not through the latching collets.
Baker Hughes Incorporated
Sim & Mcburney
LandOfFree
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