Tool for closing a production column in a well

Details Tool for closing a production column in a well Tool for closing a production column in a well

1987-02-10

1988-03-01

Leppink, James A.

Wells

Valves, closures or changeable restrictors

Longitudinally movable operator

166162, 166386, E21B 3414

Patent

active

047279397

ABSTRACT:
The invention relates to a tool suitable for closing a production column (100) of a well when the tool is located in a connector of enlarged diameter (101). The tool is lowered on the end of a cable (76) and includes a tilting valve member (60) which is oblong in shape and which is oriented longitudinally to pass through the corresponding oblong orifice of a valve seat (69) fixed to the connector, and is then oriented transversely in order to co-operate with said seat in order to close the production column when a traction force (F) is applied to the cable (76).

REFERENCES:
patent: 4583592 (1986-04-01), Gazda
patent: 4678035 (1987-07-01), Goldschild

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