Table 10 Knudsen numbers and permeabilities due to different gas transport phenomena of the Eagle Ford shale.
Pore Pressure (MPa) | Knudsen Number | Permeability of Gas Slippage (nD) | Permeability of Knudsen Diffusion (nD) | Permeability of Surface Diffusion (nD) | Apparent Permeability (nD) |
|---|---|---|---|---|---|
5.06 | 0.4279 | 323.0326 | 9.8923 | 232.8697 | 565.7946 |
6.05 | 0.3592 | 277.6226 | 7.2227 | 198.9411 | 483.7864 |
7.03 | 0.3101 | 245.5701 | 5.5460 | 175.8046 | 426.9207 |
8.04 | 0.2719 | 220.9662 | 4.3835 | 158.5151 | 383.8648 |
9.03 | 0.2427 | 202.3524 | 3.5813 | 145.8241 | 351.7578 |
10.03 | 0.2190 | 187.4072 | 2.9876 | 135.9238 | 326.3186 |
11.02 | 0.1997 | 175.3785 | 2.5437 | 128.1873 | 306.1096 |
12.01 | 0.1836 | 165.4312 | 2.1996 | 121.9219 | 289.5528 |
