E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/129 (2006.01) E21B 23/00 (2006.01) E21B 23/06 (2006.01)
Patent
CA 2066996
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.
Burns Timothy D. SR.
Caskey Kenneth D.
Haliburton Company
Swabey Ogilvy Renault
LandOfFree
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