Wells – Processes – Producing the well
Patent
1984-05-23
1986-05-20
Novosad, Stephen J.
Wells
Processes
Producing the well
166 68, 166374, 417137, E21B 4312, E21B 4318
Patent
active
045894949
ABSTRACT:
A method of controlling the removal of flowable material from a well using a pump in the well which includes a housing having at least one aperture leading to an interior chamber within the housing so that flowable material from the well can enter the chamber and a pressure responsive valve for opening and closing the aperture. Gas is supplied under pressure through a conduit to the pump to close the valve to terminate entry of the flowable material into the chamber and to force the flowable material out of the pump. The flow of gas under pressure is then terminated, and gas from the conduit is vented. The venting is carried out during the time that the gas under pressure is supplied through the conduit to the pump and following the termination of the flow of gas to the pump to bleed gas under pressure from the conduit and the pump so that flowable material from the well can again enter the chamber.
REFERENCES:
patent: 868487 (1907-10-01), Rosengarten
patent: 964693 (1910-07-01), Richardson
patent: 997661 (1911-07-01), Ellison
patent: 1616017 (1927-02-01), Williams
patent: 4527633 (1985-07-01), McLaughlin et al.
Getty Synthetic Fuels, Inc.
Novosad Stephen J.
Peterson Gordon L.
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