Experimental Study on Gas–Water Relative Permeability Characteristics of Tight Sandstone Reservoir in Ordos Basin

Table 1

Basic data of core used in gas–water permeability experiment.

Core number	Length/cm	Diameter/cm	Porosity/%	Perm-plug method/(10^-3μm^2)	Dry weight/g	Wet weight/g	Saturated water/mL	Contact angle/°
1	4.240	2.540	17.710	1.896	47.920	51.504	3.497	45.05
2	4.058	2.540	13.629	1.024	52.140	54.664	2.462	49.38
3	4.324	2.530	9.473	0.703	52.717	54.463	1.899	37.65
4	4.549	2.533	15.970	0.516	53.614	56.784	3.093	50.36
5	3.380	2.540	8.140	0.360	42.911	44.116	1.176	32.15
6	3.658	2.536	5.132	0.194	47.300	48.112	0.792	40.56
7	3.681	2.540	3.030	0.130	48.262	48.758	0.484	38.21
8	4.424	2.540	6.240	0.090	57.503	58.557	1.028	36.77