Table 3. Petrophysical Properties of Sandstone Samples.

	sample composition
core lithology	K∞ distribution range/mD	quantity/piece	porosity/%	Klinkenberg permeability/mD
intersalt shale	>1.0	3	5.804–6.836	1.651–7.6104
	0.1–1.0	1	6.225	0.105
	0.01–0.1	3	4.514–8.995	0.033–0.068
continental shale	0.1–1.0	3	6.245–7.724	0.154–0.369
	0.01–0.1	3	5.323–7.485	0.015–0.056
marine shale	>1.0	1	3.533	1.016
	0.1–1.0	1	3.951	0.359
	<0.01	1	3.381	0.004