Experimental investigation on stable displacement mechanism and oil recovery enhancement of oxygen-reduced air assisted gravity drainage

CHEN Xiaolong,LI Yiqiang,LIAO Guangzhi,ZHANG Chengming,XU Shanzhi,QI Huan,TANG Xiang

Table 1 Visualization experimental scheme.

Number Gas injection velocity/ (mL?min-1) Inclina- tion/ (°) Number Gas injection velocity/ (mL?min-1) Inclina- tion/ (°) 1 0.1 0 17 0.8 0 2 21 18 21 3 38 19 38 4 65 20 65 5 90 21 90 6 0.2 90 22 1.0 0 7 0.3 90 23 21 8 0.5 0 24 38 9 21 25 65 10 38 26 90 11 65 27 2.0 0 12 90 28 21 13 5.0 90 29 38 14 8.0 90 30 65 15 15.0 90 31 90 16 25.0 90 32 1.5 90