Enhanced petroleum fluid recovery process in an underground rese

Details Enhanced petroleum fluid recovery process in an underground rese Enhanced petroleum fluid recovery process in an underground rese

1998-06-17

2000-08-22

Suchfield, George

Wells

Processes

Distinct, separate injection and producing wells

166401, 166402, 166403, E21B 4322

Patent

active

061056723

ABSTRACT:
Enhanced (WAG type) oil recovery process in an underground reservoir uses forced injection, through one or more wells, alternately of fluid slugs and gas slugs, and recovery, through one or more production wells, of petroleum fluids displaced by the wetting fluid and the gas injected. The process includes dissolving a pressurized gas in the liquid of certain slugs and, after injection, relieving the pressure prevailing in the reservoir so as to generate gas bubbles by nucleation in the smallest pores, which has the effect of driving the oil away from the less permeable zones into the more permeable zones (with large pores or with fractures) where the oil is swept by the gas slugs injected later on. Implementation of the process considerably increases the oil recovery ratio that is usually reached with WAG type processes.

REFERENCES:
patent: 3032101 (1962-05-01), Woertz et al.
patent: 3342256 (1967-09-01), Bernard et al.
patent: 3529668 (1970-09-01), Bernard
patent: 3580335 (1971-05-01), Allen et al.
patent: 3599717 (1971-08-01), McMillen
patent: 3800874 (1974-04-01), Kern
patent: 3893511 (1975-07-01), Root
patent: 4224992 (1980-09-01), Comberiati et al.
patent: 4601337 (1986-07-01), Lau et al.
patent: 4683948 (1987-08-01), Fleming
patent: 4856589 (1989-08-01), Kuhlman et al.
patent: 5758727 (1998-06-01), Moulu et al.
Perez et al "Carbonated Water Imbibition Flooding: An Enhanced Oil Recovery Process for Fractured Reservoirs", SPE/DOE 8th Symposium on Enhanced Oil Recovery, Apr. 22-24, 1998, Tulsa, Oklahoma, USA, pp. 79-90, XP002057954.

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