Differential Occurrence Characteristics and Influence Factors of Reservoir Movable Fluids in Tight Gas: A Case Study of Shan 1 Reservoir in Yanchang Area

Table 1

Mineral content of Shan 1 reservoir in Yanchang area.

Mineral content	Quartz (%)	Feldspar (%)	Volcanic cuttings (%)	Metamorphic cuttings (%)	Sedimentary cuttings (%)	Other (%)
Maximum value	93.91	18.00	34.00	20.00	35.00	25.00
Minimum value	45.00	0.00	0.00	2.00	0.00	0.00
Average value	75.80	2.31	7.01	11.11	1.30	2.47