E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/49
E21B 23/04 (2006.01)
Patent
CA 1192129
LINER AND HYDRAULIC LINER HANGER SETTING ARRANGEMENT Abstract of the Disclosure A liner and a hydraulic liner hanger setting arrangement for setting the liner in a well bore casing includes a setting tool having a tubular mandrel connected in a pipe string to extend through the hydraulic setting arrangement with the liner forming an outer housing surround- ing the liner to form a longitudinally extending annular recess therebetween with one end of the recess exposed to the well bore. Longitudinally extending piston means are seal- ably engaged in the recess with the piston means having a cone shaped end. Slips are releasably secured to the liner and means are provided to retain and to lock the piston means against premature extraction into the recess. A port in the housing communicates fluid pessure from the mandrel to the housing recess to move said piston means in the recess and engage the cone shaped end thereof with said slips to urge them into engagement with the well bore casing and thus secure the liner in position. Upon lowering the setting tool after the slips engage the casing, seal means on the piston means span the housing port and prevent communication to the recess from the port when the piston is retracted back into the recess.
424124
Arnold Ronald D.
Baker Samuel F.
Riches Mckenzie & Herbert Llp
Texas Iron Works Inc.
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