Optimized method for determining physical parameters of a sample subjected to centrifugation

A method for determining physical parameters relating to circulation of fluids through a porous geologic sample comprising:

• a) placing in a vessel the sample initially saturating with a first fluid;
• b) centrifuging the sample in presence of a second fluid at rotating speeds varying progressively in stages;
• c) measuring at each rotating speed an amount of the first and second fluid progressively displaced by the centrifugation and deducing thereof variation with respect to time a saturation curve for each rotating speed;
• d) determining by selecting adjustment parameters at each rotating speed a modeling saturation curve best fitting a measured portion of the saturation curve already measured and deducing therefrom an asymptotic saturation value;
• and
• e) at each rotating speed extending the measured portion of the saturation curve already measured vs. time until the symptotic saturation is stabilized so as to obtain stabilized asymptotic saturation values for all the rotation speeds and determining therefrom the physical parameters.