Study on the Synergistic Effects of Changqing Petroleum Sulfonate Complex System
摘要
In order to obtain Changqing petroleum sulfonate complex system of better performance and adapting to Changqing reservoir conditions, takes Changqing petroleum sulfonate as the main agent, the synergistic effect of petroleum sulfonate and different surfactants was investigated. The results show that Changqing sulfonate and C16ArSO3 anionic surfactants, 6501 non-ionic surfactants, C18N cationic surfactant, betaine amphoteric surfactant compound having synergistic effect and higher interfacial activity. Considering interfacial activity and anti-adsorption, Changqing petroleum sulfonate and 6501, Changqing Petroleum sulfonate and octadecyl sulfopropyl betaine is preferred complex system.