Integration of NMR and NMRC in the Investigation of the Pore Size Distribution of Tight Sandstone Reservoirs: A Case Study in the Upper Paleozoic of Dongpu Depression

Table 1

Sample number and mineral composition of sandstone samples.

Sample ID	Well ID	Depth (m)	Whole rock X-ray diffraction analysis
			Quartz (%)	Feldspar (%)	Calcite (%)	Siderite (%)	Halite (%)	Pyrite (%)	Clay (%)
1	Q2	3460.60	78.7	17.8	0.0	0.0	0.0	0.6	2.9
2	Q3	3583.88	67.7	23.8	1.4	0.0	0.0	1.3	5.8
3	Q2	3584.62	66.8	24.6	0.6	0.0	0.0	1.1	6.9
4	Q2	3585.61	68.4	27.1	0.0	0.0	0.0	0.0	4.5
5	Q3	3586.16	64.1	29.1	0.7	0	0	0.8	5.3
6	Q3	4112.9	68.8	7.2	0.8	0.0	0.0	0.0	11.6
7	Q3	4113.69	62.8	11.1	0.4	2.8	1.2	0.0	21.7
8	Q3	3586.5	63.8	34.8	0	0	0	0	1.4
9	Q3	4059.35	68.8	6.7	1.6	4.7	0.0	0.0	18.2
10	Q3	4112.45	70.5	8.2	0.0	0.0	0.8	0.0	20.5
11	Q3	4059.48	68.5	6.4	1.1	4.8	0.0	0.0	19.2
12	Q2	4053.26	65.2	6.1	1.0	0.9	0.0	0.0	26.8