Wells – With below and above ground modification – Eduction pump or plunger in well
Patent
1976-12-23
1978-01-03
Leppink, James A.
Wells
With below and above ground modification
Eduction pump or plunger in well
166 75R, E21B 4300
Patent
active
040661237
ABSTRACT:
This invention is a hydraulic pumping unit which uses a cyclone feed pump means to vary the speed of the above-ground pump, while still providing proper cleaning of the power fluid for the downhole pump. The ability to conveniently change the speed of the above-ground pump allows the speed of the pump to be reduced whenever well conditions make such a reduction appropriate, and this provides a very substantial reduction in the cost of power for the prime mover (typically an electric motor). In addition to the cyclone feed pump and a speed control means to vary the speed at which the prime mover drives the above-ground pump, this invention uses a flowback line connected from the cyclone overflow to the feed pump inlet.
REFERENCES:
patent: 2046769 (1936-07-01), Coberly
patent: 2119737 (1938-06-01), Coberly
patent: 3614761 (1971-10-01), Rehm
patent: 3709292 (1973-01-01), Palmour
patent: 3759324 (1973-09-01), Mecusker
patent: 3782463 (1974-01-01), Palmour
patent: 3802501 (1974-04-01), Mecusker
patent: 3982589 (1976-09-01), Wilson et al.
patent: 3982591 (1976-09-01), Hamrick et al.
patent: 3982592 (1976-09-01), Hamrick et al.
Jutus Marvin W.
Skinner David R.
Sowell Miles L.
Leppink James A.
McIlroy Arthur
Standard Oil Company (Indiana)
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