Bi-directional pressure assisted sealing packers

Details Bi-directional pressure assisted sealing packers Bi-directional pressure assisted sealing packers

1989-10-30

1990-05-15

Neuder, William P.

Wells

Packers or plugs

With expanding anchor

166182, 166195, E21B 2306

Patent

active

049249410

ABSTRACT:
Disclosed are packers for use with a gravel pack system in an oil or gas well. The packers are of both the releasable and non-releasable, or sump type. The packers are designed so that after they are set or actuated and they seal against the casing wall or the well bore, fluid pressure in either axial direction on the packer seal will increase the energizing force on the seals. This self-energizing feature is accomplished with selectively disposed and sized annular seals on telescoping members.

REFERENCES:
patent: 3584684 (1971-06-01), Anderson et al.
patent: 3749166 (1973-07-01), Young
patent: 4156460 (1979-05-01), Crowe
patent: 4437516 (1984-03-01), Cockrell
patent: 4693309 (1987-09-01), Caskey
patent: 4862957 (1989-09-01), Scranton

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