Liquid purification or separation – Flow – fluid pressure or material level – responsive – Diverse sensing means
Patent
1986-08-18
1988-08-02
Fisher, Richard V.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Diverse sensing means
210117, 210121, 210136, 2102423, 210923, 417118, 417138, 166265, B01D 1702, F04F 300, E21B 4338
Patent
active
047612258
ABSTRACT:
An apparatus for controlling the removal of liquid hydrocarbons from ground water in perforated well casings consists of a plurality of pump chambers and a control system which is powered by compressed air. The pump chambers are positioned above a liquid hydrocarbon recovery device which is positioned in the well casing at the oil/water interface. The pump chambers are evacuated, causing the ground water and the liquid hydrocarbons to be drawn into separate chambers through respective check valves. The pump chambers are then pressurized with air to push out the water and liquid hydrocarbons through check valves in the chamber discharge conduits, thereby removing the fluids from the well casing.
REFERENCES:
patent: 4181470 (1980-01-01), Gillett
patent: 4273650 (1981-06-01), Soloman
patent: 4307525 (1981-12-01), Maloblocki
patent: 4431534 (1984-02-01), Gordon
patent: 4469170 (1984-09-01), Farmer, Jr.
patent: 4527633 (1985-07-01), McLaughlin et al.
patent: 4625807 (1986-12-01), Harlow
Fisher Richard V.
Jordan Richard D.
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