化工进展 ›› 2019, Vol. 38 ›› Issue (07): 214048992-214048998.DOI: 10.16085/j.issn.1000-6613.2018-2154

• 精细化工 • 上一篇    

磺基甜菜碱Gemini表面活性剂的合成与应用性能

穆瑞花1,赖小娟2,3(),王磊2,3,刘佩2,杨靖4   

  1. 1. 西安工程大学环境与化学工程学院,陕西西安710048
    2. 陕西科技大学 陕西省轻化工助剂重点实验室,陕西 西安 710021
    3. 陕西农产品加工技术研究院 陕西 西安 710021
    4. 西安工程大学城市规划与 市政工程学院陕西西安710048
  • 收稿日期:2018-11-01 出版日期:2019-07-05 发布日期:2019-07-05
  • 作者简介:穆瑞花(1982-),女,讲师,博士,研究方向为油田化学品。E-mail:<email>muruihua@xpu.edu.cn</email>。
  • 基金资助:
    国家自然科学基金(21573171);陕西省青年科技新星项目(2018KJXX-023);陕西省重点研发计划(2017GY-121),陕西省教育厅重点实验室项目(17JS012);西安市科技计划项目(2017068CG)

Synthesis and application properties of a sulfobetaine Gemini surfactant

Ruihua MU1,Xiaojuan LAI2,3(),Lei WANG2,3,Pei LIU2,Jing YANG4   

  1. 1. College of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an 710048, Shaanxi, China
    2. Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an 710021, Shaanxi, China
    3. Shaanxi Research Institute of Agricultural Products Processing Technology, Xi'an 710021, Shaanxi, China
    4. School of Urban Planning and Municipal Engineering, Xi'an Polytechnic University, Xi'an 710048, China
  • Received:2018-11-01 Online:2019-07-05 Published:2019-07-05

摘要:

为了改善储层的非均质性差异,有效提高碳酸盐储层的酸化解堵效果,以长链烷基二甲基叔胺、3-氯-2-羟基丙烷磺酸钠和1,4-二溴丁烷为原料,通过两步反应合成了一系列磺基甜菜碱双子表面活性剂(2C n -SGS,其中n为疏水链中碳原子数,n=12,14,16,18)自转向酸主剂。以2C16-SGS为例,采用FTIR对中间产物(C16-SGS)及2C16-SGS的结构进行表征。通过表面张力法测定2C n -SGS的表面活性,结果表明,2C n -SGS具有良好的表面活性,随着疏水链的增长,2C n -SGS的CMC和表面张力均减小,且胶束化能力增强。可用于黏弹性表面活性剂自转向酸酸化技术,具有良好的转向分流能力,优选配方为4% 2C16-SGS+20%盐酸+20%Ca2+,而且高黏胶束遇煤油等烃类能够自动破胶降黏,易返排对地层无伤害。

关键词: 双子表面活性剂, 磺基甜菜碱, 表面活性, 胶束化, 自转向酸

Abstract:

In order to change the heterogeneity difference, improve the acidizing and unplugging effect of carbonate reservoir, a series of sulfobetaine Gemini surfactants (2C n -SGS, Where n is the number of carbon atoms in the hydrophobic chain, n=12, 14, 16, 18) were synthesized by a two-step reaction using long chain alkyl dimethyl tertiary amine, 3-chloro-2-hydroxypropane sulfonic acid sodium and 1,4-dibromobutane as raw materials. Taking 2C16-SGS as an example, the structures of mid product (C16-SGS) and 2C16-SGS were characterized by FTIR. Surface activity of 2C n -SGS was analyzed by surface tension method. The results show that 2C n -SGS have good surface activity, and the CMC and surface tensions of 2C n -SGS decrease with the increase of hydrophobic chain, and the micellization ability is enhanced. It can be used in viscoelastic surfactant self-steering acidification technology, with good steering and shunting ability. The optimal formula is 4% 2C16-SGS+20% hydrochloric acid + 20% Ca2+. The high viscosity gel of acidizing system is easy to break when mixing with hydrocarbons such as kerosene. It is easy to backflow and has no damage to the formation.

Key words: Gemini surfactant, sulfobetaine, surface activity, micelleization, self-diverting acid

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