Control apparatus for oil well production string closing tool

Details Control apparatus for oil well production string closing tool Control apparatus for oil well production string closing tool

1982-07-06

1985-11-19

Novosad, Stephen J.

Wells

Valves, closures or changeable restrictors

Longitudinally movable operator

166316, 175106, E21B 3414

Patent

active

045535990

ABSTRACT:
This invention relates to equipment which is installed in oil wells and more particularly to a tool control apparatus for a tool placed in the production string of a well.
This apparatus is lowered into the well at the end of a cable (116). It comprises a first mechanism (134-148-152-154) for transforming a longitudinal reciprocating movement into an alternating rotary movement, the longitudinal movement being obtained by pulling on the cable (116), and a second mechanism (156) forming part of the first, for transforming the alternating rotary movement into a one-directional rotary movement.
The invention also relates to an apparatus for closing the production string of a well, characterized in that it includes the closing apparatus or plug involved.
Application to oil well production tests.

REFERENCES:
patent: Re24304 (1957-04-01), Boynton
patent: 2002386 (1935-05-01), Bannister
patent: 2167019 (1939-07-01), Yost
patent: 2373647 (1945-04-01), Boynton
patent: 2373648 (1945-04-01), Boynton
patent: 2907391 (1959-10-01), Kinley
patent: 2922479 (1960-06-01), Kinley
patent: 3618177 (1971-11-01), Wood
patent: 3831677 (1974-08-01), Mullins
patent: 4015662 (1977-04-01), Cochran
patent: 4159643 (1979-07-01), Watkins
patent: 4209070 (1980-06-01), Sudnishnikov

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