Analysis of Microscopic Flow Behavior and Main Controlling Factors of Water Huff-n-Puff in Tight Reservoirs under the Influence of Salinity
This study elucidates the microscopic mechanisms and main controlling factors of water huff-n-puff in tight reservoirs under salinity influence, revealing that low-salinity injection enhances oil recovery by synergistically leveraging pressure differential, capillary imbibition, and ion osmosis to mobilize residual oil from low-permeability zones.