Method and apparatus for controlling the flow of well bore fluid

Details Method and apparatus for controlling the flow of well bore fluid Method and apparatus for controlling the flow of well bore fluid

1991-05-03

1993-02-23

Bagnell, David J.

Wells

Processes

Placing or shifting well part

166299, 166317, 166376, E21B 3312, E21B 2902

Patent

active

051881837

ABSTRACT:
An expendable plug is shown for use in a well bore tool for controlling the flow of well bore fluids from a production zone to the well surface. The plug is located within a tubular housing which is made up in a well tubing string having an internal bore with a predetermined minimum internal diameter. The plug initially closes off the internal bore of the tubing string at a selected location. An actuator is triggered by an appropriate signal to expend the plug of expendable material, and to remove the plug from the internal bore of the tubing string, whereby fluids in the surrounding earthen formation are allowed to flow up the tubing string to the well surface.

REFERENCES:
patent: 3095040 (1963-06-01), Bramlett
patent: 3357504 (1967-12-01), Calhoun
patent: 3980134 (1976-09-01), Amancharla
patent: 4220206 (1980-09-01), Van Winkle
patent: 4678037 (1987-07-01), Smith
patent: 4896722 (1990-01-01), Upchurch

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