Impact of Differential Densification on the Pore Structure of Tight Gas Sandstone: Evidence from the Permian Shihezi and Shanxi Formations, Eastern Sulige Gas Field, Ordos Basin, China

Table 2

NMR parameters of the three typical reservoir sandstones.

Lithologic mode	Porosity (%)	Permeability (mD)	NMR date
			BVI		100% saturated	centrifuged
			(%)	(ms)	(ms)	(ms)
2	5.89	0.043	50.87	0.7	1.065	0.64
3	8.06	0.041	27.5	0.46	0.714	0.614
8	6.35	0.066	44.5	0.7	1.083	0.621