Retrievable plug

Details Retrievable plug Retrievable plug

1980-10-06

1984-02-21

Leppink, James A.

Wells

Packers or plugs

Controllable passage through packer

166135, 405203, E21B 3302, E02B 500

Patent

active

044324197

ABSTRACT:
A retrievable plug having an improved dog locking sleeve and having adjustable dog locking pins and pin sleeves retaining the dog locking sleeve within the packer mandrel.

REFERENCES:
patent: 2776015 (1957-01-01), Bielstein
patent: 3577737 (1971-05-01), Barleson
patent: 3943982 (1976-03-01), Lecordier
patent: 4142371 (1978-03-01), Mayfield et al.
patent: 4160612 (1979-07-01), Britton et al.
patent: 4178967 (1979-12-01), Streich
patent: 4185515 (1980-01-01), Streich
patent: 4215951 (1980-08-01), Knox

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