Experimental Study on the Distribution of Retained Fracturing Fluids and Its Effect on the Permeability and Wettability in Tight Oil Reservoirs

Table 2

Basic parameters of the experimental core.

No.	Length (cm)	Diameter (cm)	Weight (g)	Porosity (%)	Permeability (mD)
E-1	4.486	2.517	59.144	7.21	0.564
E-2	4.064	2.525	51.726	6.35	0.535
E-3	4.128	2.536	53.733	3.97	0.278
E-4	4.825	2.528	62.860	6.85	0.494
E-5	4.503	2.509	55.655	4.67	0.389