Cyclic huff-n-puff with immiscible injection and miscible produc

Details Cyclic huff-n-puff with immiscible injection and miscible produc Cyclic huff-n-puff with immiscible injection and miscible produc

1994-01-13

1995-01-17

Novosad, Stephen J.

Wells

Processes

Cyclic injection then production of a single well

166268, E21B 4318, E21B 4322, E21B 4325

Patent

active

053818636

ABSTRACT:
A method of recovering hydrocarbons from a reservoir under an active waterflood or water drive by injecting a recovery fluid comprising carbon dioxide or nitrogen under immiscible conditions, allowing the recovery fluid to soak, and producing the recovery fluid and formation fluids under conditionally miscible or miscible conditions after pressure has sufficiently increased in the wellbore area.

REFERENCES:
patent: 3480081 (1969-11-01), Felsenthal et al.
patent: 4217956 (1980-08-01), Goss et al.
patent: 4324291 (1982-04-01), Wong et al.
patent: 4390068 (1983-06-01), Patton et al.
patent: 4523642 (1985-06-01), Venkatesan
patent: 4605066 (1986-08-01), Djabbarah
patent: 4800957 (1989-01-01), Stevens, Jr. et al.
patent: 4819724 (1989-04-01), Bou-Mikael et al.
patent: 5065821 (1991-11-01), Huang et al.
patent: 5117907 (1992-06-01), Hsu

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