Permeability Classification | Throat radius (Normal distribution) | Absolute permeability of the matrix (mD) | Oil displacement efficiency of the matrix |
Type I (50 - 10 mD) | 0.1 - 20 μm, σ = 6, μ = 10 μm | 18.7 | 0.38 |
Type II (10 - 1 mD) | 0.1 - 20 μm, σ = 6, μ = 8 μm | 2.23 | 0.64 |