Tool for use in retrieving an essentially cylindrical object fro

Details Tool for use in retrieving an essentially cylindrical object fro Tool for use in retrieving an essentially cylindrical object fro

1996-12-26

1998-06-16

Schoeppel, Roger J.

Wells

Grapple and well anchored lifting means

166115, 1662426, 294 8615, E21B 3118

Patent

active

057656380

ABSTRACT:
There are disclosed two embodiments of a tool for use in retrieving a cylindrical object which is stuck within a well bore, or, in the event the object cannot be retrieved, releasing therefrom to permit recovery of the tool.

REFERENCES:
patent: 3872926 (1975-03-01), Vangils
patent: 4369977 (1983-01-01), Bishop et al.
patent: 5249625 (1993-10-01), Skipper et al.
pp. 203 and 204 from the Composite Catalog of Oilfield Equipment and Services; 42nd edition, 1996-97; vol. 1; catalog file A thru G; published by World Oil.

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