Figure 6

(a) Compressive strain and injected pressure effect on the methane uptake of (a) Wender, (b) Hatcher, and (c) Wiser coal. (d) The variation of pore size with the rising of compressive strain.

(a) Compressive strain and injected pressure effect on the methane uptake of (a) Wender, (b) Hatcher, and (c) Wiser coal. (d) The variation of pore size with the rising of compressive strain.