Permanent thermal packer

Details Permanent thermal packer Permanent thermal packer

1981-07-29

1983-09-13

Novosad, Stephen J.

Wells

Packers or plugs

166285, 166303, 166 57, E21B 3312, E21B 3313

Patent

active

044036566

ABSTRACT:
A permanent thermal packer is disclosed for sealing the annulus between an injection tubing string and a well casing. The packer is thermal cement and is placed from within the injection tubing string to seal a substantial portion of the annulus above the injection zone. The packer provides a means for sealing the annulus above the injection zone thus permitting insulating material to be placed in the annulus above the packer with the expectation that it will not be damaged by well bore fluids.

REFERENCES:
patent: 3131767 (1964-05-01), Chancellor et al.
patent: 3208521 (1965-09-01), Holland et al.
patent: 3561531 (1971-02-01), Miller
patent: 3971441 (1976-07-01), Knowles et al.
patent: 4326586 (1982-04-01), Wilder
patent: 4333530 (1982-06-01), Armstrong

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