A Synergy between Controlled Salinity Brine and Biosurfactant Flooding for Improved Oil Recovery: An Experimental Investigation Based on Zeta Potential and Interfacial Tension Measurements

Figure 9

Correlation between continuous secondary recovery and (a) zeta potential; (b) correlation between recovery and IFT during FMB (circle), CSB (square), CSBS-G (rhombus), and CSBS-R (triangle) flooding. (c) Relationship between interfacial tension and zeta potential during FMB (circle), CSB (square), CSB-R (triangle), and CSB-G (rhombus) applications.

(a)

(b)

(c)