An Experimental Study on Coal Fines Migration during Single Phase Water Flow

Table 4

Permeability of coal fines intrusion at different confining pressure.

Coal fines size (mesh)	Confining pressure (MPa)
	2	3	4	5	6
	Permeability (10^-3 μm^2)
80-120	270.49	139.80	102.83	64.14	82.45
120-160	29.21	17.80	11.62	4.24	3.00
160-200	78.25	21.49	2.94	4.84	5.21
200-300	20.91	24.69	21.60	26.59	15.05
300+	180.79	218.26	4.06	1.76	3.82