辽河油田老化稠油破乳剂的合成与评价  

Synthesis and evaluation of demulsifiers for aged heavy oil in Liaohe Oilfield

作　　者：王瑞[1,2] 唐晓东[1,2] 汪芳[2] 卿大咏[2] 苏旭[2] 

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500 [2]西南石油大学化学化工学院,四川成都610500

出　　处：《断块油气田》2011年第3期400-402,共3页Fault-Block Oil & Gas Field

基　　金：中国石油天然气集团公司中青年创新基金项目"空气缓和催化氧化裂解稠油油层就地生成烟道气高效采油技术基础研究"(06Z1015)资助

摘　　要：针对辽河油田老化稠油成分复杂、含水率高、脱水困难等特点,研制了油溶性破乳剂SYR-1和水溶性破乳剂SSR-1,并考察了2种单体破乳剂和复配破乳剂对辽河油田老化稠油破乳脱水的效果。研究结果表明:单体油溶性破乳剂SYR-1的破乳效果优于水溶性破乳剂SSR-1,老化稠油脱水率可达81.3%;复配破乳剂破乳效果优于单体破乳剂,脱水率分别提高9.5%和33.8%。选定2种破乳剂进行正交实验,得到破乳脱水优化条件为:破乳温度80℃,破乳剂加量1.0 g·L-1,复配比例3∶1,破乳48 h后脱水率可达97.5%。Aiming at the characteristics of the complex components,the high water cut and the dewatering difficulty of the aged heavy oil in Liaohe Oilfield,the oil-soluble demulsifier SYR-1 and the water-soluble demulsifier SSR-1 are synthesized in this paper and the demulsification effect of the single agent demulisifiers and the two mixed agents demulisifiers on the aged heavy oil are investigated.Experimental data are presented to show that the demulsification effect of SYR-1 is better than that of SSR-1 and the dehydration rate can reach 81.3%.The demulsification effect of the mixed agents demulisifiers is better than that of single agent demulisifier and the dehydration rate increases 9.5% and 33.8%.The orthogonal experiment of the two demulsififiers are conducted in order to determine the optimum condition of demulsification,which shows that the temperature of demulsification is 80 ℃,the demulisifier concentration is 1.0 g/L,the ratio of mixture is 3：1 and the dehydration rate can reach 97.5% after the demulsification for 48 h.

关 键 词：老化稠油 破乳 油溶性破乳剂 水溶性破乳剂 合成 辽河油田 

分 类 号：TE624[石油与天然气工程—油气加工工程]