Wells – Processes – Placing or shifting well part
Patent
1992-11-03
1994-09-06
Dang, Hoang C.
Wells
Processes
Placing or shifting well part
166124, 166181, 166237, E21B 2300
Patent
active
053439546
ABSTRACT:
An apparatus and method of anchoring a work string to a packer set in a wellbore and releasing therefrom. The apparatus includes a stinger, a collet slidably disposed on the stinger and having a plurality of collet fingers adapted for engaging the packer, a shear ring member shearably attached to the stringer and adapted for holding the collet fingers into engagement with the packer. The packer may be normally released by applying torque to the work string such that the collet fingers are unthreaded from the packer. Torque is applied from the stinger to the collet fingers by a load ring attached to the stinger and having splines extending between the collet fingers so that torque may be applied to the collet without applying torque to the shear ring member. In the event that rotation is not possible, tension applied to the work string and the stinger will cause the shear ring member to be shearably released from the stinger so that the collet fingers may be pulled longitudinally and thereby disengaged from the packer. A method of use of the apparatus is also disclosed.
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Berscheidt Kevin T.
Bohlen J. Tad
Smith Donald R.
Dang Hoang C.
Halliburton Company
Kennedy Neal R.
Kent Robert A.
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