Valve assembly for an inflatable packer system

Details Valve assembly for an inflatable packer system Valve assembly for an inflatable packer system

1980-02-11

1982-06-01

Leppink, James A.

Wells

Valves, closures or changeable restrictors

Fluid operated

251325, E21B 3410

Patent

active

043322980

ABSTRACT:
A valve assembly for use in an inflatable packer system comprising an outer valve member, an inner valve member adapted to move axially relative to said outer valve member when weight is set down on and lifted from the system, and a shifting sleeve which is pumped down by inflation fluid with respect to both said inner and outer valve members to establish an inflation fluid passageway.

REFERENCES:
patent: 3381756 (1968-05-01), Reagan
patent: 3439740 (1969-04-01), Conover

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