Stuck well pipe apparatus

Measuring and testing – Borehole or drilling – Downhole test

Patent

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Details

166178, E21B 4700

Patent

active

039941639

ABSTRACT:
A new and improved wire line operated well tool apparatus and method for sensing and testing conditions in a well, such as stuck drill pipe, and for performing certain operations in the well, such as backing off, or loosening, the stuck pipe.

REFERENCES:
patent: 2745345 (1956-05-01), Sweetman
patent: 3491830 (1970-01-01), Sweetman

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