Wells – Processes – Distinct – separate injection and producing wells
Patent
1985-06-03
1985-12-10
Suchfield, George A.
Wells
Processes
Distinct, separate injection and producing wells
166273, E21B 4322
Patent
active
045573301
ABSTRACT:
A method for displacing hydrocarbons from a hydrocarbon-bearing subterranean reservoir by injecting a displacing fluid comprising a primary fluid such as carbon dioxide or rich gas, and an additive such as nitrogen, methane, flue gas, propane, butane, LPG, hydrogen sulfide, carbon monoxide, and mixtures thereof, said additive having a concentration sufficient to adjust the phase equilibrium of mixtures of the displacing fluid with reservoir hydrocarbons. The additive adjusts the phase equilibrium so that utilization of the displacing fluid is more efficient.
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patent: 3231018 (1966-01-01), Handy
patent: 3623552 (1971-11-01), Vairogs
patent: 3811501 (1974-05-01), Burnett et al.
patent: 3811503 (1974-05-01), Burnett et al.
patent: 3885628 (1975-05-01), Reed et al.
Henry et al., "Multiple Phase Generation During CO.sub.2 Flooding", paper No. SPE 8812, 1980.
Fussell Delbert D.
Yellig, Jr. William F.
Cochran Robert R.
Standard Oil Company
Suchfield George A.
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