Method and fishing tool apparatus for recovering objects from we

Details Method and fishing tool apparatus for recovering objects from we Method and fishing tool apparatus for recovering objects from we

1982-08-12

1984-12-18

Marbert, James B.

Handling: hand and hoist-line implements

Grapple

Well type

E21B 3112

Patent

active

044887477

ABSTRACT:
This invention relates to fishing tools for first determining the orientation of an object before retrieving said object from a well, well bore, casing, and the like. It comprises a base with a plurality of electrode welding tips retractably attached thereto and displaced in pre-selected pattern. Signals are generated as the electrode tips come into contact with the object indicating the orientation of the object. Electrical welding current is then selectively applied to a desired electrode to attach to the object for retrieval.

REFERENCES:
patent: 2154654 (1939-04-01), Armentrout et al.
patent: 2218131 (1940-10-01), Gipson et al.
patent: 4397494 (1983-08-01), Carver

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