Abstract
AbstractA laboratory surfactant‐polymer flooding experiment was performed to study the effect of emulsification on surfactant partitioning. The partition coefficient of petroleum sulfonates (KPS) after emulsification was significantly higher than that under static conditions. The partition coefficient of KPS gradually decreases with the increase of polymer concentration from 1000–3000 mg L−1, indicating that the increase of polymer concentration could protect KPS from the partition loss of emulsification. The lower the oil–water ratio, the higher the partition coefficient. The partition coefficient of KPS of resin and asphaltene was higher than that of crude oil. Alkanes, aromatics, and other polar components in crude oil have a significant influence on the partition of KPS.
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