..., and rebalance the wellbore pressure. Spontaneous Imbibition Preserved shale cores or crude oil-saturated cores are typically used ( Zhang et al. 2018 ). CT imaging is carried out during imbibition tests to examine fluid invasion into the core. Oil recovery and fluid penetration magnitude are compared...

... give important understanding for designing completion fluid treatments and flowback schedules for ULR. IFT reduction Upstream Oil & Gas experiment enhanced recovery aqueous solution surfactant wettability alteration CT number penetration magnitude unconventional liquid reservoir...

... in a formation in real time, which was expected to represent the penetration magnitude of different fracturing fluids with or without surfactant during and after fracturing treatments. The surfactants used in the experiments were anionic and nonionic in charge, respectively. A confining pressure of 1,000 psi...