Dual seal packer for corrosive environments

Details Dual seal packer for corrosive environments Dual seal packer for corrosive environments

1987-08-26

1990-02-27

Neuder, William P.

Wells

Processes

Placing or shifting well part

166134, E21B 33129

Patent

active

049037773

ABSTRACT:
A dual seal packer is shown having a central mandrel which carries upper and lower seal assemblies which straddle an outer cage assembly. Rocker type slips are carried in the cage assembly and are set by a single expander ring. Special support surfaces on the slips cooperate with mating support surfaces on the cage assembly to provide support for the slips under tensive and compressive loading. The slips and upper and lower seal assemblies are set in a single step operation by rotating the mandrel to the right while holding tension on the well string from the surface.

REFERENCES:
patent: 1853474 (1932-04-01), Tucker
patent: 2764243 (1956-09-01), Page
patent: 2765852 (1956-10-01), Brown
patent: 2822874 (1958-02-01), Brown
patent: 3695352 (1972-10-01), McGill
patent: 3749166 (1973-07-01), Young
patent: 4149594 (1979-04-01), Evans
patent: 4427063 (1984-01-01), Skinner
patent: 4548264 (1985-10-01), Manderscheid
patent: 4627491 (1986-12-01), Zunkel

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