Well valve assembly method and apparatus

Details Well valve assembly method and apparatus Well valve assembly method and apparatus

1986-03-26

1988-11-15

Novosad, Stephen J.

Wells

Processes

Operating valve, closure, or changeable restrictor in a well

166186, E21B 3406

Patent

active

047842253

ABSTRACT:
A well valve assembly is disclosed for the control of well fluids that flow in the tubing and the annulus of a well. The well valve assembly consists of two parts, the first part being a housing that forms a portion of the well that has flow openings defined between the tubing and the annulus. The second portion of the well valve apparatus comprises a valve insert that may be lowered down through the well tubing and latched in a position adjacent the housing means. By proper selection and location of seals and flow passages on the valve insert well fluids in the tubing and the annulus may be controlled in a predetermined manner. Since valve inserts having different configurations may be interchanged within the same housing, the well valve assembly may interchangeably direct the flow of fluids within the well.

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patent: 4162705 (1979-07-01), Daigle
patent: 4248300 (1981-02-01), Braddick

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