Wells – Processes – Distinct – separate injection and producing wells
Patent
1985-02-22
1987-07-07
Novosad, Stephen J.
Wells
Processes
Distinct, separate injection and producing wells
166274, E21B 4322
Patent
active
046780360
ABSTRACT:
A miscible flooding process for oil recovery employs a multiple contact miscible solvent such as carbon dioxide and an additive such as butane which lowers the minimum miscibility pressure of the oil/solvent system. The additive is injected in a slug with a solvent, preferably followed by a slug of water to improve sweep, after which solvent alone may be injected to extract residual additive and oil by miscible extraction. A number of slugs of solvent, either by itself or with the additive may be injected, with intervening slugs of water and finally, water injection may be made to termination.
REFERENCES:
patent: 2623596 (1952-12-01), Whorton et al.
patent: 2875832 (1959-03-01), Martin et al.
patent: 3249157 (1966-05-01), Brigham et al.
patent: 3262498 (1966-07-01), Connally, Jr. et al.
patent: 3497007 (1970-02-01), Williams et al.
patent: 3620304 (1971-11-01), Hearn et al.
patent: 3623552 (1971-11-01), Vairogs
patent: 3661208 (1972-05-01), Scott et al.
patent: 3687198 (1972-08-01), Hearn et al.
patent: 3811503 (1974-05-01), Burnett et al.
patent: 3823774 (1974-07-01), Chiu
patent: 3871451 (1975-03-01), Brown
patent: 3878892 (1975-04-01), Allen et al.
patent: 3892668 (1975-07-01), Chiu
patent: 4136738 (1979-01-01), Haynes, Jr. et al.
patent: 4299286 (1981-11-01), Alston
patent: 4372381 (1983-02-01), McMillen
patent: 4605066 (1986-08-01), Djabbarah
Hartman Kathy J.
Shu Winston R.
Gilman Michael G.
Malone Charles A.
McKillop Alexander J.
Mobil Oil Corporation
Neuder William P.
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