E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/65
E21B 33/126 (2006.01) E21B 33/127 (2006.01)
Patent
CA 1126650
Abstract The inflatable bladder means of the inflatable packer of the present invention includes an integral support means for bridging an annular space between the packer and a well casing, to increase the ability of the inflatable packer to withstand differential pressures within said annular space. The integral support means includes a plurality of reinforcing layers with each of said layers having a first end securely fastened to an annular anchor shoe means and a free second terminating between the anchor shoe means and a sliding shoe means. The integral support means further includes a second plurality of reinforcing layers which are radially alternated with the reinforcing layers of the first plurality. Each of the reinforcing layers of the second plurality includes a first free end terminating adjacent the anchor shoe means and a second free end terminating between the anchor shoe means and the sliding shoe means. The free second ends of successively radi- ally outwardly located reinforcing layers of said first and second pluralities of reinforcing layers are terminated at points succes- sively axially more distant from said anchor shoe means. A second similarly constructed reinforcing element is provided in the other end of the inflatable bladder means adjacent the sliding shoe means.
342217
Baker Eugene E.
Streich Steven G.
Company Halliburton
Kirby Eades Gale Baker
LandOfFree
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