Method and apparatus for conducting wireline operations in a bor

Details Method and apparatus for conducting wireline operations in a bor Method and apparatus for conducting wireline operations in a bor

1983-01-24

1984-12-04

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

166 55, 166 65R, 166297, 166383, E21B 2308, E21B 4311, E21B 4700

Patent

active

044858701

ABSTRACT:
For conducting wireline operations in a deviated borehole, a dual or two-stage locomotive pulls a wireline cable through both the entire length of a drill string and the entire length of a stinger therein to dock with a tool at the bottom of the stinger. The inner or second-stage locomotive then pulls the stinger out into the borehole by pushing on the bottom end of the stinger to prevent buckling the stinger. The stinger and drill stem can be assembled to virtually any length, without requiring pre-wiring. The risk of buckling upon retracting the stinger back into the drill pipe, by pulling on the cable, is reduced by the use of the special configuration provided by the present invention.

REFERENCES:
patent: 3467196 (1969-09-01), Kingman
patent: 3727693 (1973-04-01), Tausch et al.
patent: 3957119 (1976-05-01), Yonker
patent: 4349072 (1982-09-01), Escaron et al.

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