Wells – With eduction pump or plunger – Having sediment trap or deflector
Patent
1983-08-26
1985-03-05
Novosad, Stephen J.
Wells
With eduction pump or plunger
Having sediment trap or deflector
166 59, 166 62, 417364, E21B 4300, E21B 3602
Patent
active
045025355
ABSTRACT:
A pumping system (10) is disclosed for pumping a fluid (14) from within a borehole (12) to the surface. A combustion engine (18) is employed to drive a pump comprising a pump barrel (28) and an auger pump shaft (32). The pumped fluid is carried from the borehole in a fluid return tubing string (42) having a standing valve (44) therein to prevent backflow into the borehole. A fuel-air mixture is provided to the combustion engine (18) through a fuel-air tubing string (22). A byproduct of the combustion of the fuel-air mixture is heat. The combusted mixture is exhausted from the combustion engine (18) through an engine exhaust tubing string (60). The engine exhaust tubing string includes a heating coil portion (64) forming a heat exchanger to transfer heat from the combusted fuel-air mixture to the fluid (14) adjacent the inlet of the pump to reduce the viscosity of the fluid to enhance the efficiency of the pumping system.
REFERENCES:
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patent: 2849958 (1958-09-01), Mitchell
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patent: 4285401 (1981-08-01), Erickson
Howison Gregory M.
Medlock Nina L.
Mills Jerry W.
Novosad Stephen J.
Starinsky Michael
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