复合驱油体系与大庆原油间界面张力的研究  

Interfacial tension between composite displacement system and Daqing crude oil.

作　　者：吴文祥[1] 张洪亮[1] 胡竞邦 高树棠 李华斌 

机构地区：[1]大庆石油学院,大庆石油管理局勘探开发研究院

出　　处：《油气采收率技术》1995年第1期1-7,共7页

摘　　要：本文讨论了石油磺酸盐Ｂ—１００体系和Ｎａ２ＣＯ３体系与大庆原油间的界面张力等值图；讨论了Ｂ－１００－Ｎａ２ＣＯ３体系、Ｂ－１００—Ｎａ２ＣＯ３—３３３０Ｓ体系与大庆原油间的界面张力等值图。研究了表面活性剂的类型和浓度、碱的类型和浓度及地层水矿化度等对复合体系界面张力的影响。通过以上这些研究，探讨了碱——表面活性剂二元复合体系及碱—表面活性剂——聚合物三元复合体系与大庆原油间形成超低界面张力的机理。研究结果在理论上为大庆油田开展三元复合驱提供了充实的实验依据。his paper discusses the isopleth map of interfacial tension among petroleum sulfonate B 100system,Na2CO3 system and Daqing crude oil and that among B 100 Na2CO3 system,B 100 NaCO3 3330S system and Daqing crude oil.The effects of the kinds and concentration of surfactants and alkalis and salinity of formation water on the interfacial tension of composite displacement system have been stressed. Through the above research work,the mechanisms of the formation of extra-low interfacial tension by alkaline- surfactant binary system,alkaline-surfactant- polymer ternary system and Daqing crude oil have been discussed.Theoretically,the results provide a full experiment basis for the implementation of ASP flooding in Daqing oil fields.

关 键 词：界面张力 大庆原油等值图 矿化度 复合驱油 驱油 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]