Study on Pore Structure of Shale Reservoir by Low Temperature Nitrogen Adsorption Method

Table 4

Distribution of the surface area and the pore volume of the shale samples based on IUPAC standards.

Sample number	Hole volume ratio (%)			Specific surface area ratio (%)
	<2 nm	2-50	>50 nm	<2 nm	2-50	>50 nm
L-24	0.03199	0.918454	0.049555	0.004392	0.938476	0.057132
L-27	0.039148	0.915203	0.045649	0.003931	0.938923	0.057146
L-29	0.040328	0.907993	0.051678	0.007343	0.935616	0.057041
L-35	0.037504	0.911537	0.050959	0.003452	0.939387	0.057161