Coal Facies and Its Effects on Pore Characteristics of the Late Permian Longtan Coal, Western Guizhou, China

Figure 7

Mercury injection (ad) and withdrawal curves (de) of different coal facies. (a) Moist forest peat swamp facies of YV-1 well; (b) moist forest peat swamp facies of PQ-1 well; (c) shallow-water covered forest peat swamp facies of PQ-1 well; and (d) dry forest peat swamp facies of PQ-1 well.

(a)

(b)

(c)

(d)