Jet engine pump and downhole heater

Details Jet engine pump and downhole heater Jet engine pump and downhole heater

1981-05-18

1983-08-30

Novosad, Stephen J.

Wells

With heating, refrigerating or heat insulating means

Burner in well

166302, 166105, 417364, E21B 3602, E21B 4324

Patent

active

044011598

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:
patent: 2902270 (1959-09-01), Salomonsson et al.
patent: 3004603 (1958-03-01), Rogers et al.
patent: 3216498 (1965-11-01), Palm
patent: 3606999 (1971-09-01), Lawless

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