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

Table 3

Permeability of coal fines intrusion at different flow velocities.

Coal fines size (mesh)	Flow velocity (mL/min)
	2	3	4	6	8	10
	Permeability (10^-3 μm^2)
80-120	95.34	82.45	57.58	68.40	49.15	59.15
120-160	3.73	3.00	3.70	4.17	5.92	6.23
160-200	2.07	5.18	3.95	7.67	8.32	9.57
200-300	6.09	14.62	11.71	10.50	5.88	7.90
300+	2.23	3.82	2.04	/	/	/