Table 2 Basic parameters of coal Samples.
Coal Samples | Coal Seam Gas Pressure P/MPa | Initial Gas Release Rate /Δp | Coal Seam Permeability Coefficient λ/(m2/MPa2·d) | Borehole Flow Rate Attenuation Coefficient α/d− 1 |
|---|---|---|---|---|
#9 | 0.46–0.61 | 12.64 | 0.073 | 1.2668 |
#15 | 0.92 ~ 1.13 | 13.81 | 0.086 | 0.9234 |