An experimental study on alkaline/surfactant/polymer flooding systems using nature mixed carboxylate
作者： Gan-Zuo Li , Jian-Hai Mu , Ying Li , Shi-Ling Yuan
DOI: 10.1016/S0927-7757(00)00578-1
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摘要: Abstract The orthogonal-test-design method was used to determine the optimal formula by phase behavior and transient interfacial tension (IFT) studies, respectively. results indicate major components are cheap, naturally mixed carboxylate SDC (0.5%), alkaline NaHCO 3 /Na 2 CO weight ratio of 1 (1.0%), HAPM (1000 mg dm −3 ). In coreflood experiment, their oil recovery will be increased a factor 25.2 26.8% original in place (OOIP).
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