Method of retrieving a downhole tool utilizing non-rotational wo

Details Method of retrieving a downhole tool utilizing non-rotational wo Method of retrieving a downhole tool utilizing non-rotational wo

1993-02-04

1994-05-10

Melius, Terry Lee

Wells

Processes

Freeing stuck object, grappling or fishing in well

166 98, 166240, 166377, E21B 2300

Patent

active

053100018

ABSTRACT:
An apparatus for retrieving downhole devices is disclosed. The apparatus of the present invention includes a retrieving device that can be run on non-conventional workstrings such as coiled tubing, wireline, or electric line. The apparatus comprises a power mandrel, an inner sleeve mandrel slidably disposed within the power mandrel, and an overshot means. Means are provided to translate longitudinal movement of the power mandrel into rotational movement of the inner mandrel.

REFERENCES:
patent: 3244233 (1966-04-01), Villalon, Jr.
patent: 3638988 (1972-02-01), Brown
patent: 3697114 (1972-10-01), Chatard et al.
patent: 3863974 (1975-02-01), Dinning
patent: 4545431 (1985-10-01), Fore
patent: 4648446 (1987-03-01), Fore et al.
patent: 4693309 (1987-09-01), Caskey

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