Touhami Y, Hornof V, Neale GH. 1998. Dynamic interfacial tension behavior of acidified oil/surfactant-enhanced alkaline systems 1. Experimental studies. Elsevier Science Colloid Surf 132:61-74.
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Dynamic interfacial tension behavior of acidified oil/surfactant-enhanced alkaline systems 1. Experimental studies
Youssef Touhami, Vladimir Hornof, Graham H. Neale. Colloids Surfaces A: Physicochem. Eng. Aspects 132 (1998) 61-74Colloid and survaces.pdf -
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It has been found that there exists an optimum concentration with respect to both alkali and added surfactant, at which the interfacial tension is the lowest. dependent on acid concentration.
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Capillary forces cause a large quantities of oil to be left behind in well-swept zones of water-flooded oil reservoirs: interfacial tension between the oil and the aqueous phase resists externally applied viscous forces. Lowering the interfacial tension helps recover additional oil by reducing the capillary forces.