Pore Structure Alteration Characteristics of Different Mineralogical Composition Shale during Shale-Fracturing Fluid Physical-Chemical Interactions

Table 3

Mineralogical compositions of the shale samples before and after slick water treatment (%).

Samples	State	Quartz	Calcite	Dolomite	Pyrite	Plagioclase	Clay minerals
YY	Raw	65	1	1	8	11	14
	Treated	66	0	1	6	11	16
GZ	Raw	15	8	60	10	3	4
	Treated	18	3	55	11	5	8