Experimental Study on Water Sensitivity Difference Based on Oiliness of Porous Medium Rock

Table 1

Table for evaluation results of water sensitivity.

Block	Core number	Porosity (%)	Native permeability (mD)	Damage rate (%)	Water sensitivity degree	Critical value of salinity (mg/L)
ZD	ZD1	13.425	0.0888	60.37	Medium-slightly strong	7247.18
	ZD2	16.889	5.7823	61.76	Medium-slightly strong	7247.18
	ZD3	14.618	0.209	59.47	Medium-slightly strong	7247.18
HLM	H1	7.266	0.47	37.50	Medium-slightly weak	4831.45
	H2	3.12	0.4	35.71	Medium-slightly weak	4831.45