Complex Resistivity Dispersion Characteristics of Water-Bearing Coal Based on Double Cole-Cole Model

Table 1

Two coal samples water immersion weight and Sw.

Coal grade	Soaking time (h)	m (g)	m(d) (g)	m(s) (g)	m(d) − m(s) (g)	M − m(d) (g)	Sw (%)
Bituminous coal	0	303.2	303.2	315.4	12.2	0	0
	6	310.3				7.1	58
	12	312.5				9.3	76.5
	24	314.7				11.5	94.1
	36	314.8				11.6	95.2
	48	315				11.8	97.1
	60	315.2				12	98.3
	72	315.4				12.2	100
Anthracite	0	326	326	334.2	8.2	0	0
	6	329.5				3.5	42.1
	12	329.9				3.9	47.4
	24	330.7				4.7	57.9
	36	332.5				6.5	78.9
	48	333.8				7.8	94.7
	60	334				8	97.4
	72	334.2				8.2	100

Sw: coal samples’ water saturation.