E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/52
E21B 23/00 (2006.01) E21B 31/18 (2006.01)
Patent
CA 1163189
ABSTRACT A pulling tool for retrieving well tools from a well bore. The present invention allows the reach of the pulling tool to be easily varied. The pulling tool can also be assembled for emergency release by either upward or downward shearing forces. The weight of a well tool engaged by the pulling tool is fully supported by the housing of the pulling tool. A manual release feature is provided to release well tools from the pull- ing tool at the well surface without having to disassemble the pulling tool or shear any pins.
384896
Otis Engineering Corporation
Smart & Biggar
LandOfFree
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