Determining residual oil saturation following flooding

Details Determining residual oil saturation following flooding Determining residual oil saturation following flooding

1977-06-23

1978-07-25

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

73152, E21B 4900

Patent

active

041023960

ABSTRACT:
A method for determining the fluid saturation, for example the hydrocarbon saturation, the residual oil saturation or water saturation, of a reservoir following a secondary recovery operation wherein there is injected into the reservoir via a well first hydrocarbons and then a secondary recovery medium to return the portion of the reservoir in the immediate vicinity of the well to the same fluid saturation as exists in the bulk of the reservoir. The reservoir is then logged with a logging instrument to determine the hydrocarbon saturation, gas saturation, residual oil and/or water saturation.

REFERENCES:
patent: RE28963 (1976-09-01), Fertl
patent: 3282095 (1966-11-01), Owens
patent: 3333631 (1967-08-01), Heller
patent: 3562523 (1971-02-01), Richardson et al.
patent: 3631245 (1971-12-01), Jorden, Jr.
patent: 3757575 (1973-09-01), Murphy et al.
patent: 3783683 (1974-01-01), Murphy et al.
patent: 3817328 (1974-06-01), Neuman
patent: 3894584 (1975-07-01), Fertl

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