Retrievable torque-through packer having high strength and reduc

Details Retrievable torque-through packer having high strength and reduc Retrievable torque-through packer having high strength and reduc

1996-02-26

1999-03-23

Bagnell, David J.

Wells

Packers or plugs

With expanding anchor

166182, E21B 2306

Patent

active

058846999

ABSTRACT:
A packer for use in subterranean wellbores provides efficient utilization of its cross-sectional area with mechanisms therein for anchoring, sealing, and torquing through the packer. In a preferred embodiment, a retrievable packer has a tubular mandrel, rubbers disposed on the mandrel, upper and lower compression members axially straddling the rubbers, a barrel-type casing slip, upper and lower wedges axially straddling the casing slip, a release mechanism, and a series of threaded load-distributing components which help to prevent collapse of the mandrel.

REFERENCES:
patent: 2647584 (1953-08-01), Baker et al.
patent: 3623552 (1971-11-01), Randerman, Jr.
patent: 4582135 (1986-04-01), Akkerman
patent: 4730835 (1988-03-01), Wilcox et al.
patent: 4834175 (1989-05-01), Ross et al.
patent: 5103902 (1992-04-01), Ross et al.
Versa-Trieve Packers.
Otis Products and Services, pp. 43-45.

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