物理化学学报 >> 2005, Vol. 21 >> Issue (02): 161-165.doi: 10.3866/PKU.WHXB20050210

研究论文 上一篇    下一篇

重烷基苯磺酸盐的界面性质和驱油机理

张越;张高勇;王佩维;牛金平;关景财;谷惠先   

  1. 中国日用化学工业研究院 表面活性剂国家工程研究中心,山西太原　030001
  • 收稿日期:2004-06-18 修回日期:2004-09-08 发布日期:2005-02-15
  • 通讯作者: 张高勇 E-mail:zyyf@vip.sina.com

The Interface Behavior and Enhanced Oil Recovery Mechanism of Heavy Alkylbenzene Sulfonates

ZHANG Yue;ZHANG Gao-Yong;WANG Pei-Wei;NIU Jin-Ping;GUAN Jing-Cai;GU Hui-Xian   

  1. China Research Institute of Daily Chemical Industry, State Research Center of Surfactant Engineering, Taiyuan　030001
  • Received:2004-06-18 Revised:2004-09-08 Published:2005-02-15
  • Contact: ZHANG Gao-Yong E-mail:zyyf@vip.sina.com

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摘要： 重烷基苯磺酸盐是在三次采油中广泛采用的表面活性剂之一，但重烷基苯原料组成复杂导致最终磺化产物的驱油效果差异很大.实验通过柱层析的方法将重烷基苯分离成6个族组分，并对其中的二烷基苯、单烷基苯和二烷基茚萘满、烷基萘、多苯烷进行磺化，中和提纯后对各磺酸盐进行界面张力测定.通过对比不同矿化度下界面张力以及各组分复配后的界面张力，对原油等效烷烃数(EACN)以及各组分碳数最低值(nmin)测定，得出各组分之间协同效应的规律和复配机理，从而阐明了重烷基苯磺酸盐的驱油机理.通过研究十二烷基苯磺酸钠(LAS)与各组分之间的复配作用对上述规律和机理进行了进一步验证.

关键词: 重烷基苯磺酸盐, 等效烷烃数, 三次采油, 界面张力

Abstract: Heavy alkylbenzene sulfonates (HABS) have been applied in enhanced oil recovery(EOR) for many years, but the effect of oil flooding is quiet different as variety of HABS composition. In this study, HABS was separated into 6 group-types with column chromatography, and dialkylbenzene, polyphenylalkane, monoalkylbenzene, alkylnaphthalene were sulfonated and purified. The interfacial tension (IFT) and the synergistic effect between these components were studied，and the mechanism and rules of the synergistic effect between HABS components were obtained from the EACN value of oil and the nmin values of HABS components. Moreover, the rules were further confirmed by the synergistic effect between LAS and the HABS components.

Key words: Heavy alkylbenzene sulfonates(HAS), Equivalent alkane carbon number(EACN), Enhanced oil recovery, Interfacial tension