RUNNING TOOL

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 movemen t and thereafter lock in a secured position to the liner, regardl...

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Bibliographic Details
Main Author SMITH, SIDNEY K., JR
Format Patent
LanguageEnglish
French
Published 28.03.2006
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary: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 movemen t and thereafter lock in a secured position to the liner, regardless of whether th e liner is placed in tension or compression by the running tool. Release is accomplishe d 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.
Bibliography:Application Number: CA19962167857