Method for determining residual oil saturation of a formation

Details Method for determining residual oil saturation of a formation Method for determining residual oil saturation of a formation

1976-07-26

1978-11-07

Dixon, Harold A.

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

G01V 500

Patent

active

041248007

ABSTRACT:
A method for determining the residual oil saturation of a formation by the following steps: (1) injecting radioactive water into the formation; (2) logging the gamma response of the formation; (3) chemically flooding the formation to remove substantially all of the residual oil; (4) injecting radioactive water into the formation; (5) logging the gamma response of the formation; and (6) determining the residual oil saturation from the difference in the two gamma logs.

REFERENCES:
patent: 2446588 (1948-08-01), Herzog et al.
patent: 3562523 (1971-02-01), Richardson
patent: 3631245 (1971-12-01), Jorden
patent: 3894584 (1975-07-01), Fertl

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