Influence of Migration and Plugging of Nanoparticles on Coal Permeability in Coal Reservoirs

Table 2

Clay mineral analysis.

Serial number	Sample name	Relative content of clay minerals (%)					Mixed layer ratio (%S)
		S	I/S	I	K	C	I/S
1	D-1	—	67	13	14	6	25
2	D-2	—	36	8	41	15	30
3	D-3	—	24	5	55	16	20
4	D-4	—	14	6	50	30	75
5	D-5	—	12	9	69	10	50