Mysteries behind the Low Salinity Water Injection Technique

Table 5

Endpoint relative permeability data analysis.

Oil viscosity	1.05	cP	Oil-water IFT	30	Dynes/cm
Composite core length	5.3	cm
Cross-sectional area	11.28	cm^2
Injection rate (main)	0.045	cc/min	𝐾𝑜@𝑆𝑤𝑖𝑟𝑟	1.54	mD
Absolute brine permeability	7.59	mD
Injection cycle	Water viscosity (cP)	Pressure drop (psi)	𝑘^∗𝑟𝑤	𝑆𝑜𝑟	𝑘^∗𝑟𝑜
First	0.26	7.20	0.025	0.329	0.203
Second 1 (LSWI effect)	0.246	7.00	0.024	0.267
Second 2 (trapping number effect)	0.246	18.90	0.089	0.163
Third	0.234	7.00	0.023	0.127
Fourth	0.233	7.20	0.022	0.127