FLUID SUBSTITUTION Russian patent published in 2022 - IPC G01V1/28 G01V1/30 G01V1/50 G01V99/00 

FIELD: geophysics.

SUBSTANCE: method for the fluid substitution is claimed, according to which a set of initial data, a set of substituent data, and a petrophysical model are provided, while the set of initial data contains initial data of a geophysical parameter and initial data of fluid, and in which the set of substituent data contains substituent data of fluid. The method includes: use (3) of the model and the set of initial data for calculating the first calculated data of the geophysical parameter; use (5) of the model and the set of substituent data for calculating the second calculated data of the geophysical parameter; calculation (6) of a difference between the first calculated data of the geophysical parameter and the second calculated data of the geophysical parameter; and application (7) of the specified difference to initial data of the geophysical parameter to provide substituent data of the geophysical parameter.

EFFECT: increase in the accuracy and informativeness of obtained data.

25 cl, 2 dwg