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 3

Microscopic pore structure parameters from X-CT analysis of reservoir sandstones.

Lithologic mode	Porosity (%)	Permeability (mD)	Number of pore	Number of throat	Number of connected pores	Effective pore connectivity rate (%)	Average throat pore coordination number	Average pore volumes (μm^3)	Average pore radius (μm)	Average pore throat radius (μm)
2	5.01	0.06	9084	19536	2743	30.2	4.17	7659.21	9.78	5.7
3	16.5	0.14	3983	7742	1613	40.5	3.66	25928.5	13.2	7.6
8	7.78	0.04	40528	16162	6811	16.81	0.8	2245	6.3	4.53