MD膜驱剂和单季铵盐对界面Zeta电位的影响  

EFFECTS OF MOLECULAR DEPOSITION FILMING FLOODING AGENT AND MONO-QUATERNARIES ON INTERFACIAL ZETA POTENTIALS

作　　者：高芒来[1] 王建设[1] 

机构地区：[1]石油大学(北京)化工学院

出　　处：《西南石油学院学报》2004年第4期48-51,共4页Journal of Southwest Petroleum Institute

基　　金：重质油国家重点实验室开放课题 ( 2 0 0 3 -0 1)

摘　　要：MD膜驱油技术是一种新型提高原油采收率技术。为对比MD膜驱剂 (单分子双季铵盐 )和几种单季铵盐在界面作用中的差别 ,运用微电泳法分别考察了这些化合物与高岭土 /水和沥青质对二甲苯溶液 /水的界面作用。结果表明 ,Zeta电位能够反映出MD膜驱剂与单季铵盐在界面的静电作用及范德华力作用的差别。MD膜驱剂和单季铵盐与沥青质对二甲苯溶液 /水界面的作用比与高岭土 /水界面的作用大 ;范德华力在单季铵盐与沥青质对二甲苯溶液 /水界面作用中的比重比在单季铵盐与高岭土 /水界面作用中的比重大。MD膜驱剂和单季铵盐与两界面的作用大小顺序为 :MD膜驱剂 四丁基溴化铵 >四乙基溴化铵和四甲基溴化铵。MD膜驱剂与单季铵盐的不同主要在于其电荷量大 。Molecular deposition filming flooding(MDFF) is a novel oil recovery technique. To investigate the differences between molecular deposition filming flooding agent and mono-quaternaries in interfacial interactions, microelectrophoresis method was applied in studying the electrostatic behavior of kaolinite/water and aspaltene p-xylene solution/water interfacial action. Results show that the Zeta potential can reflect differences between molecular deposition filming flooding agent and mono-quaternaries in interfacial electrostatic interaction and Vander Waals force interaction. The interaction of quaternaries and asphaltene p-xylene solution/water interface is larger than that of quaternaries and kaolinite/water interface. The Vander Waals force plays more important role in interaction of quaternaries and asphaltene p-xylene solution/water interface than that of quaternaries and Kaolinte/water interface. The interfacial interaction has such a sequence as follows: MDFF agent>tetramethylammonium bromide>tetraethylammonium bromide>tetrabutylammonium bromide. MDFF agent differs from mono-quaternaries mainly because of its larger charge amount, while mono-quaternaries differ from each other because of the Vander Waals force between each species and interfaces.

关 键 词：MD膜驱剂 单季铵盐 界面作用 ZETA电位 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程] TE39