Inflatable well bore packer with pressure equalized rib cavity

Details Inflatable well bore packer with pressure equalized rib cavity Inflatable well bore packer with pressure equalized rib cavity

1984-03-09

1985-01-08

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 27, 277 30, 166120, 166187, F16J 1546, E21B 33127

Patent

active

044923830

ABSTRACT:
An inflatable packer which includes a tubular mandrel with an inflatable sleeve position about and connected to the mandrel by a pair of axially spaced apart collars. The ends of the sleeve are reinforced by reinforcing sheaths which include a plurality of axially extending overlapping expansible ribs which are contained in spaced apart cavities formed adjacent the ends of the sleeve. Ports are provided for allowing well bore fluid to communicate with the cavities to equalize the pressure around and between the ribs so that well bore pressure does not prevent the ribs from expanding.

REFERENCES:
patent: 2778432 (1957-01-01), Allen
patent: 3085628 (1963-04-01), Malone
patent: 3437142 (1969-04-01), Conover
patent: 3542127 (1970-11-01), Malone
patent: 3604732 (1971-09-01), Malone
patent: 3837947 (1974-09-01), Malone

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