Wear bushing retrieval tool

Details Wear bushing retrieval tool Wear bushing retrieval tool

1989-11-09

1991-02-26

Neuder, William P.

Wells

Above ground apparatus

With assembly or disassembly means

294 861, 294 8625, E21B 1712

Patent

active

049954580

ABSTRACT:
A tool for use in retrieving a wear bushing from a wellhead assembly comprising a generally annular body portion which can be located around a length of casing, means for supporting the body portion relative to a length of casing so that it can be lowered into a wellhead with said casing, latching means carried by body portion, said latching means being so shaped and arranged that it can engage a correspondingly shaped portion on said wear bushing, and means for actuating the latching means to move it into engagement with the wear bushing.

REFERENCES:
patent: 3247914 (1966-04-01), Slack
patent: 3473608 (1969-10-01), Castille
patent: 3645328 (1972-02-01), Greene, Jr.
patent: 3901546 (1975-08-01), Piazza et al.
patent: 4067388 (1982-12-01), Green
patent: 4340259 (1982-07-01), Green
patent: 4361353 (1982-11-01), Vinson
patent: 4625381 (1986-12-01), Gravouia, Jr. et al.
patent: 4838594 (1989-06-01), Bullard

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