Method of and apparatus for removing stuck well pipe

Details Method of and apparatus for removing stuck well pipe Method of and apparatus for removing stuck well pipe

1985-09-03

1987-04-21

Leppink, James A.

Wells

Processes

Freeing stuck object, grappling or fishing in well

166 98, 166178, 175293, 173 91, 294 8623, E21B 31113

Patent

active

046589015

ABSTRACT:
Stuck well pipe is removed from a well bore by applying an upward pull to the stuck pipe while applying an upward jarring action to the pipe by an air hammer which applies rapid blows to a linkage mechanism connected to the pipe.

REFERENCES:
patent: 3650335 (1972-03-01), Lee et al.
patent: 3651873 (1972-03-01), Uebel et al.
patent: 4473123 (1984-09-01), Ranft et al.

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