Inflatable well packer

Details Inflatable well packer Inflatable well packer

1986-07-29

1988-09-06

Massie, Jerome

Wells

Packers or plugs

Expanded by confined fluid from central chamber, pump or...

277 34, E21B 33127

Patent

active

047685905

ABSTRACT:
An inflatable packer for sealing across downhole conduits comprises a pair of rigid tubular packer heads coaxially interconnected by an inflatable tubular packer body. A bladder in the form of an elongate, flexible elastomeric sleeve includes a central section lining the packer body and having an outer diameter which, in a relaxed state of the bladder, is less than the deflated inner diameter of the packer body. The central section of the bladder is folded upon itself within the packer body in its deflated configuration. An inner reinforcing layer of the packer body is exposed in an annular area between the ends of the packer body.

REFERENCES:
patent: 2778432 (1957-01-01), Allen
patent: 3050118 (1962-08-01), Elkins
patent: 3529667 (1970-09-01), Malone
patent: 3542127 (1970-11-01), Malone
patent: 4349204 (1982-09-01), Malone
patent: 4406461 (1983-09-01), McGill
patent: 4424861 (1984-01-01), Carter, Jr. et al.

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