摘要
测定了OCS表面活性剂驱油体系与大庆原油间的动态界面张力。在大庆油田评价浓度范围内,考察了碱的类型与浓度、OCS浓度以及部分水解聚丙烯酰胺(HPAM)对动态界面张力的影响。结果表明,强碱(NaOH)体系比弱碱(Na2CO3)体系更容易形成超低界面张力(10-3mN/m),即体系达到超低界面张力的时间较短;高浓度碱体系比低浓度碱体系更容易形成超低界面张力;弱碱条件下,OCS表面活性剂浓度变化对动态界面张力有一定的影响;而强碱条件下则没有明显的影响;聚合物HPAM的引入使得不同体系达到超低界面张力的时间延长。
Dynamic interracial tensions were measured between OCS oil- displacement system and Daqing crude oil. The effects of type and concentration of alkali, concentration of OCS and HPAM on dynamic interracial tensions were examined in an evaluated concentration range of Daqingf Oilfield. The results showed that the ultra - low values of dynamic interfacial tension between NaOH/OCS oil - dis rapidly than those between Na2CO3/OCS oil- displacement placement system and Daqing crude oil could reach more system and Daqing crude oil. The influences of concentrations of NaOH and Na2CO3 on formation of the ultra - low interfacial tension were obviously greater than that of OCS. The addition of polymer HPAM postponed formation of the ultra - low interfacial tension between OCS oil - displacement system and Daqing crude oil.
出处
《精细石油化工进展》
CAS
2007年第4期1-3,7,共4页
Advances in Fine Petrochemicals
基金
中国石油天然气股份有限公司科技管理部资助项目(2003-2006)
关键词
OCS表面活性剂
驱油体系
动态界面张力
大庆原油
OCS surfactant, oil- displacement system, dynamic interfacial tension, Daqing crude oil
