Slip mechanism for a well tool

Details Slip mechanism for a well tool Slip mechanism for a well tool

1991-01-14

1992-04-07

Melius, Terry Lee

Wells

Expansible anchor or casing

Expansible means translated by wedge or cam

166134, E21B 33129

Patent

active

051018977

ABSTRACT:
A slip mechanism for anchoring a well tool in a well conduit. A first cylindrical wedge member having on its outer surface a plurality of circumferentially extending grooves, preferably forming a helix in which the grooves include an outwardly tapered side. A second cylindrical shaped slip member having a plurality of slips is positioned outside of the first member and includes a plurality of teeth on its outer surface and includes ridges mating with and coacting with the grooves on the first member. The ridges include a tapered side coacting with the tapered sides of said first member for providing radial displacement of the slip when the wedge member and slip member are moved axially to each other.

REFERENCES:
patent: 2155380 (1939-04-01), Bean
patent: 2805723 (1957-09-01), Young
patent: 2880806 (1959-04-01), Davis
patent: 3530934 (1970-09-01), Kisling, III
patent: 4498534 (1985-02-01), Lindsey, Jr.
patent: 4582134 (1986-04-01), Gano et al.
patent: 4791987 (1988-12-01), Cassity et al.
patent: 4949786 (1990-08-01), Eckert et al.

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