Piston actuated high temperature well packer

Details Piston actuated high temperature well packer Piston actuated high temperature well packer

1984-03-08

1985-07-30

Leppink, James A.

Wells

Packers or plugs

With expanding anchor

92246, E21B 33128

Patent

active

045315817

ABSTRACT:
A well packer for use in a well bore having initially retracted packing seal and slip means which are actuated by hydraulic pistons, the improvement in various seals which allow the packer to be used in high temperature environments. The pistons are ring shaped with cup-shaped sealing surfaces extending towards a hydraulic supply port for sealing by hydraulic fluid. Spacers are provided between the pistons for preventing damage to the piston seals. First and second abutments are provided adjacent one end of the seal packer with a metal seal ring between the abutments and coacting wedge surfaces are provided on the metal seal and each of the abutments for sealing against both abutments and wedging the seal inward for sealing. Metal static seals are provided in the packer which are compressed by threads for providing high temperature seals.

REFERENCES:
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patent: 2121002 (1938-06-01), Baker
patent: 2815080 (1957-12-01), Long
patent: 2862775 (1958-12-01), Kupiec
patent: 3049370 (1962-08-01), Bertrand
patent: 3603388 (1971-09-01), Current et al.
patent: 3994208 (1976-11-01), Boyer
patent: 4059150 (1977-11-01), Manderscheid
patent: 4127168 (1978-11-01), Hanson et al.
patent: 4363465 (1982-12-01), Morrill
patent: 4385664 (1983-05-01), Hutchison
patent: 4433726 (1984-02-01), Preston, Jr. et al.

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