Table 2 Basic parameters of coal Samples.

From: An experimental study of the effect of electric field enhancement on the adsorption characteristics of coalbed methane

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