Ball type shut in tool

Details Ball type shut in tool Ball type shut in tool

1983-04-22

1984-09-11

Leppink, James A.

Wells

Valves, closures or changeable restrictors

Longitudinally movable operator

166334, E21B 3412

Patent

active

044704658

ABSTRACT:
A ball valve type shut in tool having utility in gravel packing operations. The tool comprises a tubular housing having a mechanically actuated valve ball disposed therein. The ball is locked in an open or closed mode by the force of a ring spring expanding into two longitudinally spaced annular recesses in the housing. The ball is moved between an open and a closed mode by an operating sleeve comprising spring fingers which is disposed at the end of a wash pipe or production string. Insertion of the operating sleeve into the tool opens the ball; withdrawal of the operating sleeve from the tool closes the ball.

REFERENCES:
patent: 3356140 (1967-12-01), Young
patent: 4051899 (1977-10-01), Fredd
patent: 4344602 (1982-08-01), Arendt
patent: 4372391 (1983-02-01), Barrington et al.

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