Fluid flow control apparatus, shifting tool and method for oil a

Details Fluid flow control apparatus, shifting tool and method for oil a Fluid flow control apparatus, shifting tool and method for oil a

1991-02-11

1992-02-25

Novosad, Stephen J.

Wells

Processes

Operating valve, closure, or changeable restrictor in a well

166 50, 166312, 166178, 166332, 166384, 166386, E21B 414, E21B 3412, E21B 3414, E21B 3700

Patent

active

050904817

ABSTRACT:
A fluid flow control apparatus, shifting tool and method for oil and gas wells in which a sliding sleeve valve is connected in a string of well tubing in a wellbore casing. The sliding sleeve valve functions to selectively control fluid communication between the well tubing and the wellbore casing. A shifting tool is provided for opening and closing the sliding sleeve valve and is connected to reeled tubing for receiving a fluid. The shifting tool includes a nozzle for discharging the fluid into the well tubing during or after the valve shifting operation.

REFERENCES:
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patent: 3211232 (1965-10-01), Grimmer
patent: 4909325 (1990-03-01), Hopmann
patent: 4917191 (1990-04-01), Hopmann et al.
patent: 4928770 (1990-05-01), Murray
patent: 4928772 (1990-05-01), Hopmann
patent: 4940094 (1990-07-01), Lessi et al.
patent: 4967841 (1990-11-01), Murray
patent: 4991654 (1991-02-01), Brandell et al.

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