1. n. [Enhanced Oil Recovery]
Values of interfacial tension (IFT) less than about 10–2 mN/m. Mixed surfactant systems, as used in enhanced oil recovery, adsorb at the oil/water interface and can be designed to generate an interface that is flexible and that has an ultralow IFT. Ultralow IFT implies
Micellar-polymer and alkaline-surfactant-polymer flooding are techniques used to achieve ultralow IFT.
See: alkaline-surfactant-polymer flooding, interfacial tension, micellar-polymer flooding