Research Article
Simulation Analysis on Water’s Micro Seepage Laws under Different Pressure Gradients Using Computed Tomography Method
Table 4
Coal’s permeability and non-Darcy coefficients after fitting.
| Coal region | Effective porosity | Correlation coefficient | Fitted value of A | Fitted value of B | Permeability (k/10−4mD) | Non-Darcy coefficient (β/m−1) |
| P1 | 18.15% | 0.99967 | 3.64826 | 0.94244 | 2.30 | 942 | P2 | 15.26% | 0.9995 | 3.44116 | 0.80657 | 2.44 | 807 | P3 | 14.57% | 0.99912 | 3.40512 | 0.65068 | 2.46 | 651 | P4 | 20.43% | 0.99926 | 3.35691 | 0.44063 | 2.50 | 441 |
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