Retrievable packer

Details Retrievable packer Retrievable packer

1991-01-11

1993-12-28

Britts, Ramon S.

Wells

Packers or plugs

With expanding anchor

166134, 166138, E21B 33129

Patent

active

052731090

ABSTRACT:
The apparatus of the present invention is a retrievable packer which provides for release between a mandrel and a packing element support structure by virtue of a rotational movement The apparatus is configured so that the packer can be set by letting up on a tubing string or, in some applications where sufficient weight is unavailable, by pulling up on the tubing string. The slips feature a locking mechanism to secure the packing element against the wellbore W. A release mechanism is provided to defeat the lock mechanism and to act upon the slips to draw them inwardly so the apparatus can be removed from the wellbore W.

REFERENCES:
patent: 3507327 (1970-04-01), Chenoweth
patent: 3603388 (1971-09-01), Current et al.
patent: 3747674 (1973-07-01), Murray
patent: 4307781 (1981-12-01), Preston et al.
patent: 4518037 (1985-05-01), Youngblood et al.
patent: 4593765 (1986-06-01), Greenle
patent: 4610300 (1986-09-01), Mullins et al.
patent: 4664188 (1987-05-01), Zunkel et al.
patent: 4750564 (1988-06-01), Pettigrew et al.
patent: 4778008 (1918-10-01), Gonzalez et al.
patent: 4830103 (1989-05-01), Blackwell et al.

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