Automatic well pump skimmer level control

Details Automatic well pump skimmer level control Automatic well pump skimmer level control

1989-12-26

1991-09-17

Smith, Leonard E.

Pumps

Condition responsive control of pump drive motor

Responsive to accumulation of pumped liquid in receiver

417 40, 417 53, 166 53, 166385, 210104, F04B 4706

Patent

active

050490370

ABSTRACT:
A control system for an in-well pump for recovery of hydrocarbons which are lighter than water. Two electrical probes and a float switch are used to control the automatic raising and lowering of the pump within the well to always maintain its input within the hydrocarbon layer. The pump is also controlled so that it only operates when its input is within the hydrocarbons to assure that it does not pump water and that it is not operated in air.

REFERENCES:
patent: 3915225 (1975-10-01), Swink
patent: 4187912 (1980-02-01), Cramer
patent: 4273650 (1981-06-01), Solomon
patent: 4404093 (1983-09-01), Moyer
patent: 4466777 (1984-08-01), Kimberlin
patent: 4469170 (1984-09-01), Farmer, Jr.
patent: 4663037 (1987-05-01), Breslin
patent: 4718486 (1988-01-01), Black
patent: 4746423 (1988-05-01), Moyer
patent: 4928771 (1990-05-01), Vandevier

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