Anchor for use in a well

Details Anchor for use in a well Anchor for use in a well

1982-08-16

1984-04-10

Purser, Ernest R.

Wells

Packers or plugs

With expanding anchor

166140, 166216, 166217, 166206, E21B 33129, E21B 3312, E21B 2300, E21B 33128

Patent

active

044415532

ABSTRACT:
A packer utilizing a C-slip in which, during release of the packer, the upper expander pulls the C-slip off of the lower expander. If a packer is stuck in the well, the upper expander is keyed to the slip to prevent rotation of the upper expander during milling.

REFERENCES:
patent: 2261564 (1941-11-01), Robichaux
patent: 2373880 (1945-04-01), Driscoll
patent: 3279542 (1966-10-01), Brown
patent: 4176715 (1979-12-01), Bigelow

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