METHOD FOR DETERMINING RESIDUAL OIL SATURATION OF A GAS-SATURATED RESERVOIR

摘要

METHOD FOR DETERMINING RESIDUAL OIL SATURATION OF A GAS-SATURATED RESERVOIR A method for determining in situ residual oil saturation of a gas-saturated reservoir by injecting at least two non-reactive tracers into an injector well and analyzing the samples from a production well. The tracers have different partition coefficients and are chromatographically retarded to different extents during their passage through the formation.