E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/43
E21B 33/128 (2006.01) E21B 23/06 (2006.01) E21B 33/1295 (2006.01)
Patent
CA 1165228
TITLE: HYDRAULICALLY SET WELL PACKER ABSTRACT OF THE INVENTION A double grip well bore packer which is run into a well casing on a tubular conduit string has actuator means responsive to applied fluid pressure to set slips and to force a packing into engagement with the casing, and the setting force is locked into the packing. The applied setting force results from relative axial movement between an inner body mandrel, a setting mandrel and a housing surrounding the lower end of the inner body mandrel to define a pressure chamber housing a releasing piston. A bottom member defines the lower end of the housing and provides a mounting for a removable plug which closes the tubing bore to permit build-up of tubing pressure to set the packer, including limited pressure induced upward movement of the inner mandrel body relative to the bottom member to facilitate the application of the setting forces.
381110
Baker International Corporation
Borden Ladner Gervais Llp
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