initial permeability/mm2 | rounds | permeability after plugging/mm2 | plugging rate/% |
1.16 | 1 | 0.08 | 93.5 |
2 | 0.04 | 96.4 | |
3 | 0.02 | 98.2 | |
2.27 | 1 | 0.18 | 92.1 |
2 | 0.10 | 95.5 | |
3 | 0.07 | 97.1 |