Characteristics and EOR mechanisms of nanofluids permeation flooding for tight oil

DING Bin,XIONG Chunming,GENG Xiangfei,GUAN Baoshan,PAN Jingjun,XU Jianguo,DONG Jingfeng,ZHANG Chengming

Fig. 10. Contact angles between the mineralized water and nanofluids permeation flooding system of 0.1% concentration and water-wet and oil-wet SiO2 interfaces at the test temperature of 85 °C.