METHOD OF EVALUATION OF OIL SATURATION OF ROCK Russian patent published in 2009 - IPC G01N23/83 

FIELD: mining.

SUBSTANCE: method consists in preparing of investigated sample form core of oil-water-bearing rock, in modeling reservoir condition in sample, in determination of intensiveness of Roentgen radiation at scanning of dry investigated sample of rock, in saturating it with model of reservoir water and in determination of intensiveness of Roentgen radiation at scanning of investigated sample at 100% water saturation, in evaluation of residual water saturation, in filtration of oil and agent, in scanning investigated sample of rock with Roentgen radiation, also when filtrating oil, gas is used as agent, further method consists in additional determination of intensiveness of Roentgen radiation at scanning sample of rock saturated with three phases, that is with residual water saturation, and with intermediate oil and gas saturation; after that oil saturation is evaluated from corresponding mathematic formula.

EFFECT: increased reliability and accuracy of evaluation of oil saturation of rock.

2 cl, 1 tbl, 2 dwg