Well packer

Details Well packer Well packer

1983-12-01

1985-06-25

Novosad, Stephen J.

Wells

Packers or plugs

With expanding anchor

166140, 166217, E21B 33129

Patent

active

045248257

ABSTRACT:
The packer of the present invention includes mandrel means having first ratchet means and lug means disposed thereon, second ratchet means and drag spring means associated with tubular housing means surrounding said mandrel means, said housing means including slot means on the interior thereof, radially expandable slip means disposed about said mandrel means, a compressible packer element disposed about the lower end of said mandrel means, and packer element compression means associated with said mandrel means and said housing means.

REFERENCES:
patent: 2389985 (1945-11-01), Justice et al.
patent: 3244233 (1966-04-01), Villalon, Jr.
patent: 3279542 (1966-10-01), Brown
patent: 3330357 (1967-07-01), Elliston
patent: 3507327 (1970-04-01), Chenoweth
patent: 3584684 (1971-06-01), Anderson et al.
patent: 3744563 (1973-07-01), McGill
patent: 3749166 (1973-07-01), Young
patent: 4078606 (1978-03-01), Montgomery
patent: 4176715 (1979-12-01), Bigelow et al.
patent: 4427063 (1984-01-01), Skinner

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