聚醚型原油破乳剂结构与破乳性能关系的研究  

Research on the relationship between structure and demulsification property of polyether crude oil demulsifier

作　　者：蔡奇峰[1] 周继柱 付增华 冷传志 时武龙 王国瑞 

机构地区：[1]中国石油化工股份有限公司西北油田分公司塔河油田采油一厂联合站,新疆轮台841600 [2]新疆天普石油天然气工程技术有限公司,新疆轮台841000

出　　处：《应用化工》2013年第1期68-71,共4页Applied Chemical Industry

摘　　要：以直链和支链结构的醇类、胺类以及稠环树脂为起始剂,通过烷氧基化反应合成了一系列嵌段聚醚型破乳剂。针对新疆塔河油田原油,讨论了聚醚破乳剂的起始剂类型、支化结构、起始剂含量、环氧乙烷与环氧丙烷质量比值[m(EO)/m(PO)]以及嵌段结构和方式对其脱水效果的影响。结果表明,针对新疆塔河油田原油,合成的多分枝型聚醚破乳剂脱水效果较好;聚醚破乳剂的起始剂质量比在0.3%～1.5%,HLB值在9.5～11.5,破乳脱水效果较好;末端为PEO嵌段的二嵌段聚醚破乳剂脱水速率快,脱水率最高;多嵌段结构聚醚破乳剂脱水速度较慢,但分离出的水色清,污水含油率低。With stearyl alcohol, propylene glycol, tetraethylenepentamine, polyethylene polyamine, phenolic resin and phenol-amine resin as the initiator respectively, a series of polyether demulsifiers were synthe- sized. The initiator, branch degree, the ratio of m（EO）/m（ PO）, the relationship between block structure and dehydration of the demulsifiers were investigated. The results showed that Tahe oilfield in Xinjiang, synthesis of multi-branched polyether demulsifier has higher dehydration rate;the polyether demulsifier with 0.3% - 1.5% phenolic resin and when the ratio of HLB of polyether demulsifier is in the range of 9.5 - 11.5,it shows good demulsification property; the polyether demulsifiers with two blocks and end of PEO block show fast dehydration speed, high dehydration rate; the polyether demulsifiers with more blocks shows slower dehydration speed and low oil content of waste water.

关 键 词：破乳剂 聚醚 结构 破乳性能 起始剂 

分 类 号：TE39[石油与天然气工程—油气田开发工程] TE868