石油学报 ›› 1994, Vol. 15 ›› Issue (4): 79-85.DOI: 10.7623/syxb199404011

• 油田开发 • 上一篇    下一篇

驱油体系/原油间的瞬时界面张力

徐桂英1, 李干佐1, 刘木辛1, 李方1, 毛宏志1, 张凌军2, 寿崇琦2   

  1. 1. 山东大学胶体与界面化学研究所;
    2. 山东建材学院
  • 收稿日期:1993-02-09 修回日期:1994-03-28 出版日期:1994-12-25 发布日期:2013-07-08
  • 作者简介:徐桂英,女,1949年8月生.1974年毕业于山东大学.现为山东大学副教授.通讯处:山东省济南市.邮政编码2501OO

TRANSIENT INTERFACIAL TENSIONS BETWEEN COMBINATION FLOODING SYSTEMS AND CRUDE OIL

Xu Guiying1, Li Ganzuo1, Liu Muxin1, Li Fang1, Mao Hongzhi1, Zhang Lingjun2, Shou Chongqi2   

  1. 1. Research Institute of Colloid and Interfafe Cheforstry, Shandong University;
    2. Department of Applied Chemistry, Shandong College of Building Material
  • Received:1993-02-09 Revised:1994-03-28 Online:1994-12-25 Published:2013-07-08

摘要: 考察了活性剂浓度、碱浓度和聚合物种类及浓度对复合驱油体系与原油间瞬时界面张力(γt)的影响.结果表明,在一定碱和盐浓度条件下,0.3%的石油磺酸盐存在即可使γt降至超低.室内模拟驱油试验结果表明,化学驱提高采收率27.5%.本研究对于三次采油具有一定指导意义.

关键词: 石油磺酸盐, [正丁醇], 聚丙烯酰胺, 界面张力, 三次采油

Abstract: Transient interfacial tension between mixed systems of petroleum suuonate(PS)/alka-line/polyacrylamide consisting of n-C4H9OH,NaCl and Shengli crude oil have been studied.Experimental results indicated that transient interfacial tension of mixed systems were ultra-low when the PS and Na2CO3 come up to a certain concentration,Synergistic effect betweenPS and petroleum acid soap have been observed.The oil recovery of a system with 0.3% PS,1.2% Na2CO3,0.09% polyacrylamide,1.0% n-C4H9OH and 0.6% NaCl in core is 27.5%.On the average,21.3cm3 oil was displaced with each gram of chemical agent.

Key words: petroleum sulfonate, [n-Butanol], polyacrylamide, interfacial tension, tertiary oil recovery