Geological Feasibility of Underground Oil Storage in Jintan Salt Mine of China

Table 5

XRD analysis results of clay minerals in interlayers of Well M1#.

Number	Depth	Glimmerton	Kaolinite	Chlorite	Illite/smectite mixed layer
	(m)	(%)	(%)	(%)	(%)
XRD-37	891.0~893.0	80	0	10	10
XRD-38	891.0~893.0	74	0	6	20
XRD-39	891.0~893.0	71	0	7	22
XRD-47	955.0~956.0	75	0	10	15
XRD-49	967.0~968.5	72	0	8	20
XRD-51	970.0~971.5	85	3	7	5
XRD-52	973.5~976.0	68	0	12	20
XRD-53	973.5~976.0	75	0	6	19
Average		75.0	0.4	8.2	16.4