Well packer with releasable head and method of releasing

Details Well packer with releasable head and method of releasing Well packer with releasable head and method of releasing

1986-07-25

1987-08-25

Novosad, Stephen J.

Wells

Processes

Placing or shifting well part

166120, 166123, 166376, E21B 2900, E21B 33129

Patent

active

046886419

ABSTRACT:
A well packer adapted to be set in a well conduit and includes a mandrel, a packing seal surrounding the mandrel and slips positioned above the packing seal against an abutment. The abutment is connected to a latching head and to the mandrel. A connection is positioned adjacent the lower end of the latching head which can be broken for releasing the latching head and preferably the abutment from the mandrel for allowing the milling out of the packer without the necessity of milling the latching head. The packer is released by an upward jar on the latching head for retrieving the latching head in some embodiments and by chemical cutting in another embodiment. The packer slips are then milled out for releasing the packer for upward movement.

REFERENCES:
patent: 3631925 (1974-01-01), Nutter
patent: 4307781 (1981-12-01), Preston, Jr. et al.
patent: 4572290 (1986-02-01), Clifton

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