Wettability of Tight Sandstone Reservoir and Its Impacts on the Oil Migration and Accumulation: A Case Study of Shahejie Formation in Dongying Depression, Bohai Bay Basin

• Published in: Energies (Basel) Vol. 15; no. 12; p. 4267
• Main Authors: Jia, Kunkun, Zeng, Jianhui, Wang, Xin, Li, Bo, Gao, Xiangcheng, Wang, Kangting
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.06.2022
• Subjects: Analysis; capillary force; Chemical properties; Contact angle; Crude oil; Environmental aspects; Experiments; Growth models; Hydrocarbons; Mechanical properties; Oil and gas exploration; Oil fields; oil migration and accumulation; Permeability; Physical properties; Porosity; Research methodology; Sandstone; tight sandstone; Viscosity; wettability; China; Bohai Bay

The migration and accumulation of oil in tight sandstone reservoirs are mainly controlled by capillary force. Due to the small pore radius and complex pore structure of tight sandstone reservoirs, the capillary force is very sensitive to wettability, so wettability significantly affects oil migratio...