Probing the archie's exponent under variable saturation conditions
The saturation exponent, n, is often assumed to be two in the absence of core data, but a variety of " values have been reported. This uncertainty in n may be due to pore geometrical and topological complexities, structural heterogeneities coupled with variations in wettability. As values of " are correlated to oil-in-place, good estimates of n are needed. Recently, an X-ray μ-CT imaging registration technique was developed where multiphase fluid saturations can be measured in-situ on a pore...[Show more]
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