Hydraulic set high temperature isolation packer

Details Hydraulic set high temperature isolation packer Hydraulic set high temperature isolation packer

1982-05-06

1984-03-27

Smith, Robert T.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277116, 166278, E21B 4304

Patent

active

044389337

ABSTRACT:
The invention comprises a packer design for use in high temperature well bores. The packer is set by pressuring the well fluid through a tubing string, which moves a piston and shoe assembly on the packer mandrel, compressing a non-elastomeric high temperature packer element. The piston and shoe assembly combination is maintained in position after pressure is decreased, and the packer element is maintained in a compressed state by belleville springs which compensate for the lack of resiliency of the non-elastomeric packer element.

REFERENCES:
patent: 2138569 (1938-11-01), Brown
patent: 2695068 (1954-11-01), Baker et al.
patent: 4273190 (1981-06-01), Baker et al.

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