Experimental Study on Seepage Characteristics of Jurassic Weakly Cemented Sandstone under Water-Rock Interaction

Table 2

X-ray diffraction quantitative analysis for whole sandstone.

Sample	Mineral content (%)
	Quartz	Potash feldspar	Albite	Clay mineral (kaolinite; illite)
YP-2	38.1	21.0	24.4	14.1 (97; 3)
YP-3	61.8	14.4	7.2	15.6 (90; 10)
YP-6	51.0	9.8	20.1	16.8 (91; 9)
YP-9	44.2	21.5	16.1	16.8 (94; 6)
YP-21	53.2	17.8	17.0	15.5 (94; 6)