Characterization of Microscopic Pore Structures of Rock Salt through Mercury Injection and Nitrogen Absorption Tests

Table 6

Relationship of throat microgeometrical parameters with porosity and permeability.

Microgeometrical parameters	Maximum	Minimum	Correlation with porosity	Correlation with permeability
Skewness	1.08	0.39	= 0.831; = 0.382	= 0.008; = 0.136
Sorting coefficient	1.3449	0.3023	= 1.374; = 0.017	= 0.005; = 0.139
Variation coefficient	0.797	0.5006	= 3.462; = 0.166	= 0.501; = 0.663
Median pore throat radius; (μm)	1.115	0.0086	= 1.647; = 0.136	= 0.015; = 0.775
Median pressure; (MPa)	36.293	0.3871	= 3.552; = 0.739	= 0.028; = 0.400
Displacement pressure (MPa)	0.07176	0.0471	= 3.458; = 0.715	= 0.022; = 0.837
Maximum mercury saturation; (%)	96.04	71.43	= 5E − 10; = 0.722	= 9E − 16; = 0.540