Experimental Investigation of Seepage Mechanism on Oil-Water Two-Phase Displacement in Fractured Tight Reservoir

Table 1

Parameters of samples used in waterflooding tests.

Core	Length (cm)	Diameter (cm)	Permeability before hydraulic fracturing treatment (mD)	Permeability after hydraulic fracturing treatment (mD)	Porosity before hydraulic fracturing treatment (%)	Porosity after hydraulic fracturing treatment (%)
H1-5	4.25	2.52	0.29	0.67	10.34	10.44
H11	4.56	2.48	0.19	0.84	9.03	9.14
H13	4.30	2.54	0.12	0.95	9.012	9.20
H2-12	4.35	2.50	0.23	0.95	9.76	9.89