阴离子双子表面活性剂的油水界面张力  

Oil-water interfacial tension of anionic Gemini surfactant

作　　者：胡小冬[1,2] 熊玉娟[2] 刘霜[3] 曹洁[2] 

机构地区：[1]中国石油新疆油田公司勘探开发研究院,新疆克拉玛依834000 [2]长江大学石油工程学院,湖北荆州434023 [3]中国石化江汉油田分公司勘探开发研究院,湖北潜江433124

出　　处：《断块油气田》2012年第1期130-132,共3页Fault-Block Oil & Gas Field

基　　金：中国石油石油科技中青年创新基金项目"四次采油驱油剂的分子结构设计;合成与性能研究"(2010D-5006-0211)

摘　　要：测定了阴离子双子表面活性剂8-4—8和12-4-12与不同油相间的界面张力，考察了不同油相和矿化度变化对油水界面张力的影响。结果表明，阴离子双予表面活性剂与不同油相的油水界面张力达到平衡的时间都比较短．界面张力稳定性较好；8—4—8在煤油的油水界面活性最好，而12—4—12在稀油的油水界面活性比混合油的好。矿化度增加（0～180g／L）能有效降低阴离子双子表面活性剂的油水界面张力，说明阴离子双子表面活性剂8-4—8和12—4—12具有较好的耐盐性。The inteffacial tension between the anionic Gemini surfactants such as 8-4-8, 12-4-12 and the different oils is measured and the effect of different oil phase, temperature and salinity on the oil-water inteffaeial tension is investigated in this paper. The results show that the time to ,＇each the inteffaeial tension equilibrium for anionic Gemini surfactant with different oil phase is short and the dynamic inteffacial tension is stable. The inteffacial activity between the suffactant 8-4-8 and the kerosene is the best one in the three oil phases and the interfaeial activity between the suffactant 12-4-12 and the thin oil is better than that of the mix oil. The salinity increases （0 to 180 g,/l,） can effectively reduce the inteffaeial tension between the anion Gemini surfaetant and the thin oil. The anionic Gemini suffactants 8-4-8 and 12-4-12 all have good resistances to salt.

关 键 词：阴离子双子表面活性剂 油水界面张力 界面张力稳定性 油相 矿化度 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程] TE39