E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 23/00 (2006.01) E21B 33/04 (2006.01) E21B 33/13 (2006.01) E21B 43/10 (2006.01)
Patent
CA 2055555
A hydraulic casing hanger and packoff installation tool includes a central tubular member with a drill pipe upper connection and an annular chamber at the lower end thereof with a pair of concentric axially movable pistons mounted therein. A plurality of fluid passages are positioned in the wall of the tubular member and extend from the piston annular chamber to the middle portion of the tubular member where it exits. The pistons have a lower tubular extension which carries releasable latching means which connects the tool to the packoff to be installed and transmits the axial force of the pistons to the packoff. A drill pipe stinger extends through the annular chamber with a releasable latching means mounted on an enlarged lower portion. The releasable latching means connects the tool to the casing hanger for lowering the casing and hanger into the well bore.
Cooper Cameron Corporation
Deeth Williams Wall Llp
LandOfFree
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