Invasion fluid | Core. No | Core-flooding Experimental data | ||||
Invasion/% | Sw2/1 | Flowback/% | Qo/ (cc∙min−1) | Nca (×10−5) | ||
Water | Core A | 25.82 | 0.129 | 50 | 17.93 | 10.221 |
Core B | 32.47 | 0.193 | 40.63 | 12.83 | 7.472 | |
Core C | 46.39 | 0.303 | 34.78 | 11.25 | 6.744 | |
Surfactant | Core D | 26.30 | 0.152 | 42.31 | 15.70 | 188.15 |
Core E | 37.55 | 0.233 | 37.84 | 12.96 | 161.15 | |
Core F | 43.83 | 0.27 | 38.64 | 12.44 | 148.17 |