Fluid carrier recovery system and method

Details Fluid carrier recovery system and method Fluid carrier recovery system and method

1976-06-18

1977-07-05

Novosad, Stephen

Wells

Processes

Separating material entering well

166305R, 166 67, E21B 4312, E21B 4322, E21B 3900

Patent

active

040334120

ABSTRACT:
This disclosure relates to a fluid carrier recovery system for recovering oil and like liquid deposits from an underground source wherein the oil is deposited in an unpumpable form and wherein the oil is recovered by directing into the oil deposit a carrier which will fill a large volume of the oil deposit and which will flow upwardly through a flow passage in the earth to a location adjacent or above the surface of the earth, followed by the introduction into the lower part of such volume of a solvent for the oil, the solvent having a lesser specific gravity than the carrier and being operative on the oil to form oil-solvent droplets which float in the carrier and flow to the top of the flow passage for recovery. The carrier is preferably water and the solvent may be an inexpensive mineral spirit immiscible with water.

REFERENCES:
patent: 2882973 (1959-04-01), Doscher et al.
patent: 3057404 (1962-10-01), Bergstrom
patent: 3157231 (1964-11-01), Darley
patent: 3730270 (1973-05-01), Allred
patent: 3779602 (1973-12-01), Beard et al.
patent: 3811506 (1974-05-01), Carlin
patent: 3894769 (1975-07-01), Tham et al.
patent: 3913672 (1975-10-01), Allen et al.
patent: 3978926 (1976-09-01), Allen

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