油/水界面张力快速测定方法的研究及应用  

Research and Application of Fast Method to Determine Interfacial Tension of Oil/Water

作　　者：李岩 赵佳丽 张晨 谢春 罗婷 周少雄 

机构地区：[1]新疆科力新技术发展有限公司,新疆克拉玛依834000

出　　处：《油田化学》2012年第2期247-250,共4页Oilfield Chemistry

摘　　要：为了简便、快速、可靠地测定表面活性剂对原油/水界面张力的影响,室内根据滴体积法原理建立了一套快速测定油/水界面张力的装置,并对该装置测定结果的影响因素、平行性及可靠性进行了检验。结果表明,滴落速度对测定结果的影响较大,滴落速度应≥5秒/滴。该方法平行性较好,相对误差小于2%,苯/水体系测定误差小于1%,可以用于测定油/水体系界面张力。室内用该方法考察了生物表面活性剂、鼠李糖脂工业品、化学防蜡剂加量对原油/水界面张力的影响,得到3种药剂的最佳加药量分别为5%、4%、4%,相同加量下的药剂界面活性顺序为:化学防蜡剂>生物表面活性剂>鼠李糖脂工业品。In order to simple, rapid and reliable determine the effect of surfaetants on the oil/water interracial tension, a set of apparatus which could rapidly determine interfaeial tension of oil/water was built according to the rule of drop volume method. Influential faetor, parallelization and reliability of determination results were examined. Experiment results showed that dripping speed had a big impaet on the result of determination, which should be greater than or equal to five seeonds each drop. Parallelization of the way was good, and the relative error was less than 2%. The determination error of benzene/water system was less than 1%, which indicated that this method could be used to determine the interfaeial tension of the oil/water system. The effects of biological surfactant, rhamnoilpid industrial and chemical paraffin inhibitor on interracial tension of erude oil/water were investigated by the way. The optimal dosage of three inhibitors were of 5% ,4% ,4%, respectively. Three drugs were arranged according to their influence on interfacial tension at the same dosage in following order： chemical paraffin inhibitor 〉 biologieal surfaetant 〉 rhamnoilpid industrial.

关 键 词：界面张力 滴体积法 原油/水 防蜡剂 陆梁油田 

分 类 号：O655.2[理学—分析化学]