Hydraulically set well packer

Details Hydraulically set well packer Hydraulically set well packer

1980-07-14

1982-01-19

Leppink, James A.

Wells

Packers or plugs

With expanding anchor

166182, E21B 33128

Patent

active

043111955

ABSTRACT:
A double grip well bore packer which is run into a well casing on a tubular conduit string has actuator means responsive to applied fluid pressure to set slips and to force a packing into engagement with the casing, and the setting force is locked into the packing. The applied setting force results from relative axial movement between an inner body mandrel, a setting mandrel and a housing surrounding the lower end of the inner body mandrel to define a pressure chamber housing a releasing piston. A bottom member defines the lower end of the housing and provides a mounting for a removable plug which closes the tubing bore to permit build-up of tubing pressure to set the packer, including limited pressure induced upward movement of the inner mandrel body relative to the bottom member to facilitate the application of the setting forces.

REFERENCES:
patent: 3112796 (1963-12-01), Myers
patent: 3142338 (1964-07-01), Brown
patent: 3282342 (1966-11-01), Mott
patent: 4216827 (1980-08-01), Crowe
patent: 4263968 (1981-04-01), Garner, Jr.
patent: 4285400 (1981-08-01), Mullins

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