稠油－碱水体系界面电性质研究  

INTERFACIAL ELECTROKINETIC STUDY OF VISCOUS CRUDE OIL ALKALINE SYSTEMS

作　　者：王小妹[1] 曾昭槐[1] 陈汝熙[1] 方红波 

机构地区：[1]中山大学化学与化学工程学院化学系

出　　处：《油田化学》1996年第2期149-152,共4页Oilfield Chemistry

摘　　要：通过波长６００ｎｍ处透光率的测定研究了３种稠油在ＮａＯＨ水溶液中的乳化性能，测定了乳状液的ζ电位。透光率极小值和ζ电位极大值在同一碱浓度下出现。酸值较大的原油有较小的透光率和较大的ζ电位。在碱水中加入适量ＮａＣｌ可降低油水乳化所需的碱浓度，拓宽碱浓度范围。确定了ＮａＯＨ作为３种稠油驱替碱剂的最佳浓度和最佳含盐量。The emulsification of three viscous crude oil samples (2 from Karamay, Xinjiang, and 1 from Gudong, Shengli) in aqueous NaOH solutions is studied through measuring optical transmittance T at 600 nm and the interficial electrokinetic behavior of the emulsions - ζ potential. For these systems T and ζ potential values versus NaOH concentrations curves go through a minimum or a maximum, both extemes locating at the same NaOH concentration. Lower T and higher ζ potential values are observed for the crude of higher acid value. With NaCl in proper concentrations the NaOH concentration is lowered and its range is broadened for enhanced emulsification to occur. The optimum NaOH concentration ranges and the optimum salt requirements for these crude NaOH systems are determined.

关 键 词：稠油 碱水溶液 乳化 最佳碱浓度 碱水驱油 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]