Experiments on imbibition mechanisms of fractured reservoirs by microfluidic chips

YU Fuwei,GAO Zhendong,ZHU Wenhao,WANG Chuan,LIU Fan,XU Fei,JIANG Hanqiao,LI Junjian

Table 1 Design of the experimental scheme.

No. Fluid Side length of model/mm Boundary condition Wettability Place state Research factor A-1 Water 1.2 AFO Water-wet Vertically Wettability A-2 1.2 AFO Oil-wet Vertically A-3 3.6 AFO Water-wet Horizontally Gravity A-4 3.6 AFO Water-wet Vertically A-5 8.4 AFO Water-wet Vertically Size A-6 1.2 TEO Water-wet Vertically Boundary condition A-7 1.2 OEO Water-wet Vertically B-1 Wettability alteration solution 1.2 AFO Oil-wet Vertically Wettability B-2 1.2 AFO Water-wet Vertically B-3 3.6 AFO Oil-wet Horizontally Gravity B-4 3.6 AFO Oil-wet Vertically B-5 8.4 AFO Oil-wet Vertically Size B-6 1.2 TEO Oil-wet Vertically Boundary condition B-7 1.2 OEO Oil-wet Vertically C-1 Winsor III Type surfactant solution 1.2 AFO Oil-wet Vertically Wettability C-2 1.2 AFO Water-wet Vertically C-3 3.6 AFO Oil-wet Horizontally Gravity C-4 3.6 AFO Oil-wet Vertically C-5 8.4 AFO Oil-wet Vertically Size C-6 1.2 TEO Oil-wet Vertically Boundary condition C-7 1.2 OEO Oil-wet Vertically