Simultaneous evaluation of capillary pressure and wettability alteration based on the USBM and imbibition tests on carbonate minerals

Wettability alteration would play a significant role in the hydrocarbon displacement as it can improve oil recovery factor both conventional and unconventional reservoirs. Therefore, accurate prediction of this parameter be importance sweep efficiencies. In paper, we aimed to experimentally investigate wettability changes presence nonionic natural surfactant (Cedar) for different carbonate mineral samples. To do this, Imbibition USBM tests were taken into consideration predict capillary pressure how affects production rate. It is observed that Cedar had profound impact on calcite dolomite Due composition rock minerals, has good effect core sample (calcite dolomite), whereas cores more than cores. This change corresponding oil-wet neutral-wet or slightly water-wet samples become water-wet. addition, most Sor decreasing occurs particularly D1 (14%). Moreover, reservoir less