Analysis of Gas Content and Permeability Change Pattern of a Coal Reservoir in the Tectonic Positions Based on a THM Coupled Model

Figure 11

Variation of gas content and permeability of coal reservoirs near different tectonic positions: (a) variation of coalbed gas content near the B1 anticline and F10 normal fault; (b) variation of coalbed gas content near the F11 normal fault; (c) variation of permeability of the coal reservoir near the B1 anticline and F10 normal fault; (d) change in permeability of the coal reservoir near the F11 normal fault.

(a)

(b)

(c)

(d)