Numerical Simulation Study of Pore-Throat Evolution of Upper Paleozoic in Ordos Basin, China

Table 2

Different cement in quartz sandstone and lithic quartz sandstone.

Area/formation	Lithology	Sample number	Total amount	Silica	Kaolinite	Hydromica	Calcite
He 8 Member in Sulige area	Quartz sandstone	780	13.6	4.7	3.4	2.8	2.7
	Lithic quartz sandstone	2010	12.5	2.4	2.1	5.9	2.1
Shan 2 Member in Yulin area	Quartz sandstone	376	13.6	6.9	3.0	1.5	2.2
	Lithic quartz sandstone	212	13.5	6.1	3.5	1.7	2.2