Slip and slip assembly for well tools

Details Slip and slip assembly for well tools Slip and slip assembly for well tools

1985-05-28

1987-10-27

Novosad, Stephen J.

Wells

Expansible anchor or casing

With wedge or cam and friction drag

285144, E21B 2300

Patent

active

047023139

ABSTRACT:
An improved slip and slip assembly for use with well tools such as anchors. The slip assemblies include a plurality of slips having ends formed by segments of circles, having a concave outer surface including teeth arranged to hold in both the upwardly and outwardly directions, and concave expander surfaces arranged to mate with the tapered surfaces of expanders on a well tool to move the slips into engagement with the well bore wall. The slips are held in the assembled relationship by a plurality of garter springs that extend through arcuate holes that extend through the sidewalls of the slips.

REFERENCES:
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patent: 3749167 (1973-07-01), Young
patent: 4189001 (1980-02-01), Greenlee
patent: 4296806 (1981-10-01), Taylor et al.
patent: 4336841 (1982-06-01), Garner, Jr.
patent: 4359090 (1982-11-01), Luke

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