Wells – Processes – Specific pattern of plural wells
Patent
1980-09-09
1982-05-25
Novosad, Stephen J.
Wells
Processes
Specific pattern of plural wells
166266, 166264, 166270, 166272, 166273, 166274, 166300, 166302, 166303, E21B 4324, E21B 4330, E21B 4340
Patent
active
043312020
ABSTRACT:
A method of heating a hydrocarbon material contained in a recovery zone in an underground hydrocarbon material-bearing formation to reduce the viscosity thereof for facilitating recovery of the hydrocarbon material, in which a gaseous penetration medium comprising a gaseous working fluid and a carrier gas, is fed into the formation at a penetration pressure sufficient for penetration of the recovery zone, the working fluid being a water soluble gas which generates heat of solution upon absorption in an aqueous medium, and in which the partial pressure of the working fluid in relation to the penetration pressure and the temperature prevailing in the recovery zone is controlled to inhibit working fluid condensation but to provide for absorption of working fluid by water present in the formation to release heat for heating the hydrocarbon material in the recovery zone.
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Novosad Stephen J.
Suchfield George A.
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