Selecting an optimal surfactant for use in EOR : an experimental study
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The objective of this thesis is to choose an optimum surfactant for enhanced oil recovery (EOR) in carbonate formations by studying the phase behavior, interfacial tension (IFT) and wettability alteration. The cost of surfactant is critical; thus, I have focused on low-cost commercial surfactants. An estimated cost of a typical one percent surfactant solution in one barrel of injected water is $8.75. Thus, when a project involves injecting 100,000 barrels per day of one percent surfactant solution, the daily cost of surfactant is $875,000. Thus, in one year, the surfactant cost is about ...