Packer assembly and means for activating same only in smaller di

Details Packer assembly and means for activating same only in smaller di Packer assembly and means for activating same only in smaller di

1989-04-28

1990-08-21

Kisliuk, Bruce M.

Wells

Processes

Placing or shifting well part

166387, 166240, 166118, 166134, E21B 2306, E21B 33128

Patent

active

049497928

ABSTRACT:
A packer assembly is provided for use in a subterranean well and settable only by longitudinal manipulation of a tubular workstring. The assembly has an outer housing and a seal assembly with anchoring slips carried by the housing in retracted position and movable to expanded position along the wall of a casing or the like. A longitudinally extending central mandrel telescopes within the housing. Orienting and setting pins are provided for initial receipt within orienting and setting slots with the setting pins being moved to the orienting slot to permit setting of the packer. The seal assembly and anchoring slips are maintained in retracted position and are responsive to a variation in internal diameter between a first and second tubular conduit to thereafter permit the manipulating device to move the seal assembly and the anchoring slips to expanded position within only the second tubular conduit which has a diameter less than that of the first tubular conduit.

REFERENCES:
patent: 2906347 (1959-09-01), Baker
patent: 3115189 (1963-12-01), Althouse, Jr. et al.
patent: 3412790 (1968-11-01), Brown
patent: 3502144 (1970-03-01), Young
patent: 3603388 (1971-09-01), Current et al.
patent: 3746090 (1973-07-01), Read et al.
patent: 4106565 (1978-08-01), Braddick
patent: 4537251 (1985-08-01), Braddick
patent: 4545431 (1985-10-01), Fore

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