Invasion fluid | Chip-flooding Experimental data | ||||
Invasion/% | Sw2/1 | Flowback/% | Qo/ (μl∙min−1) | Nca (×10−5) | |
Water | 12.14 | 0.004 | 96.97 | 2.949 | 2.855 |
16.65 | 0.031 | 81.43 | 3.255 | 3.151 | |
20.45 | 0.007 | 97.71 | 4.366 | 4.226 | |
39.65 | 0.141 | 64.40 | 1.801 | 1.743 | |
45.11 | 0.353 | 21.66 | 0.000 | 0.000 | |
Surfactant | 11.61 | 0.023 | 80.00 | 2.468 | 48.97 |
17.21 | 0.040 | 76.84 | 2.800 | 55.56 | |
42.46 | 0.158 | 62.72 | 2.186 | 43.37 | |
48.61 | 0.196 | 59.68 | 1.260 | 25.00 |