Well packer valve arrangement

Details Well packer valve arrangement Well packer valve arrangement

1984-06-21

1987-06-16

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 31, 166122, 166187, F16J 1546, E21B 3312

Patent

active

RE0324388

ABSTRACT:
A valve system for use in inflating packers mounted on mandrels. The valve system uses one or more valves to permit, through the use of seals, the flow of fluid from the interior of a tubular mandrel to the interior of the inflatable packer when pressure applied in the mandrel exceeds at least a minimum pressure. The differential pressure across reciprocating seals is minimized through exposure of one or both sides, directly or indirectly, to the external pressure of the mandrel and packer, the exposure including the use of a check valve to permit flow from the exterior of the mandrel.

REFERENCES:
patent: 3351349 (1967-11-01), Chenoweth
patent: 3373820 (1968-03-01), Robinson et al.
patent: 3427651 (1969-02-01), Billstein et al.
patent: 3437142 (1969-04-01), Conover
patent: 3503445 (1970-03-01), Cochrum et al.
patent: 3542127 (1970-11-01), Malone
patent: 3581816 (1971-06-01), Malone
patent: 3776308 (1973-12-01), Malone
patent: 3818922 (1974-06-01), Malone
patent: 4063427 (1977-12-01), Hoffman
patent: 4260164 (1981-04-01), Baker et al.

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