Jc. Melrose et al., COMPARISON OF DIFFERENT TECHNIQUES FOR OBTAINING CAPILLARY-PRESSURE DATA IN THE LOW-SATURATION REGION, SPE formation evaluation, 9(3), 1994, pp. 185-192
Capillary pressure data obtained by different methods in the low-satur
ation range are compared at the same values of the Leverett J function
. The paper shows that in this range, saturations obtained by the merc
ury-injection method are significantly lower than saturations obtained
by other standard methods.