Through tubing gun hanger

Details Through tubing gun hanger Through tubing gun hanger

E - Fixed Constructions

21

B

E21B 43/116 (2006.01) E21B 23/00 (2006.01) E21B 23/01 (2006.01) E21B 43/119 (2006.01)

Patent

CA 2154935

A gun hanger for emplacement through a tubing string into a casing string, comprising an inner mandrel, a setting means slidably received on said mandrel, said setting means including a plurality of spaced apart, extendable slips mounted thereon such that operation of said setting means causes said slips to extend and engage the casing string, a slip release means slidably received on said mandrel such that operation of said slip release means causes said slips to retract and disengage from the casing string, said setting means and said release means having diameters less than the inside diameter of the tubing string when said slips are retracted, a centralizer mounted on and extending axially from the hanger, said centralizer comprising a stem and a plurality of evenly circumferentially spaced longitudinal bow springs flexibly mounted thereon, said bow springs being longitudinally spaced along said stem such that each spring longitudinally clears its preceding and succeeding springs when said springs are compressed.

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