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Experimental investigation on stable displacement mechanism and oil recovery enhancement of oxygen-reduced air assisted gravity drainage
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CHEN Xiaolong,LI Yiqiang,LIAO Guangzhi,ZHANG Chengming,XU Shanzhi,QI Huan,TANG Xiang
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Table 4 Long core displacement experiment schemes.
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| Number | Permeability/
10-3 μm2 | Porosity/
% | Oxygen content/% | Gas injection velocity/
(mL?min-1) | | ① | 197.8 | 23.1 | 15 | 0.01 | | ② | 203.6 | 25.5 | 0.10 | | ③ | 199.3 | 23.1 | 0.20 | | ④ | 200.1 | 25.1 | 0.03 | | ⑤ | 200.5 | 24.6 | 15 | 0.05 | | ⑥ | 195.3 | 26.6 | 0 | | ⑦ | 199.6 | 26.2 | 5 | | ⑧ | 208.5 | 26.5 | 10 | | ⑨ | 210.6 | 24.8 | 22 |
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