Downhole anchor

Details Downhole anchor Downhole anchor

1999-03-09

2000-12-05

Dang, Hoang

Wells

Expansible anchor or casing

With wedge or cam and friction drag

166243, E21B 2301

Patent

active

061553468

ABSTRACT:
A downhole anchor for preventing rotational movement of a member within a well has a central tubular member, a slip housing and a drag assembly disposed about the tubular member. The slip housing carries at least two slip members, each slip member being mounted in a slot for slide-in positioning. This slip mounting feature facilitates assembly and refurbishment of the anchor. The slips are inwardly biased toward the tubular member by a spring acting between the slip members and the tubular member. The positioning of the spring in this way also facilitates assembly and refurbishment of the anchor and reduces stress damage to the slip housing.

REFERENCES:
patent: 3322006 (1967-05-01), Brown
patent: 3380528 (1968-04-01), Timmons
patent: 5350013 (1994-09-01), Jani et al.
patent: 5771970 (1998-06-01), Jani
patent: 6062309 (2000-05-01), Gosse

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