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山东大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (2): 89-94.doi: 10.6040/j.issn.1672-3961.0.2014.226

• 化学与环境 • 上一篇    

聚合物/表面活性剂驱模拟采出水的乳化稳定性

苗领, 李玉江, 李枫   

  1. 山东大学环境科学与工程学院, 山东 济南 250100
  • 收稿日期:2014-08-12 修回日期:2015-03-17 出版日期:2015-04-20 发布日期:2014-08-12
  • 通讯作者: 李玉江(1963-),男,山东章丘人,教授,博导,博士,主要研究方向为水污染控制理论,废水治理工程与资源化和环境材料.E-mail:yujiang@sdu.edu.cn E-mail:yujiang@sdu.edu.cn
  • 作者简介:苗领(1987-),男,河南商丘人,硕士研究生,主要研究方向为水污染防治理论与技术.E-mail:sdmiaoling@126.com*
  • 基金资助:
    国家自然科学基金资助项目(51178253);山东省自然科学基金资助项目(ZR2011EEM002)

Emulsion stability of simulated polymer/surfactant flooding produced water

MIAO Ling, LI Yujiang, LI Feng   

  1. School of Environmental Science and Engineering, Shandong University, Jinan 250100, Shandong, China
  • Received:2014-08-12 Revised:2015-03-17 Online:2015-04-20 Published:2014-08-12

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摘要： 以成分相对简单的轻质油(V(石油醚):V(苯)=9:1)作为模拟油取代成分复杂的原油配制模拟采出水,详细探究了驱油剂影响聚合物/表面活性剂二元复合驱采出水乳化稳定性的机理。采用超低界面张力仪、Zeta电位分析仪和界面流变仪对油水界面张力、油滴表面Zeta电位和油水界面流变进行测定,研究了部分水解聚丙烯酰胺(HPAM,聚合物)、石油磺酸盐(WPS,表面活性剂)和矿化度对模拟采出水油水分离性能的影响。研究结果表明:WPS能够降低油水界面张力,使模拟采出水更加稳定。HPAM能够增加模拟采出水体相黏度,但对其最终乳化稳定性影响较小。矿化度增加显著增强了模拟采出水乳化稳定性,从而为进一步加深对采出水乳化稳定性的研究提供借鉴。

关键词: 矿化度, 轻质油, 聚合物/表面活性剂驱, 乳化稳定性, 模拟采出水

Abstract: The mechanism of oil-displacing agent for the emulsion stability of polymer/surfactant produced water was studied in detail by preparing the simulated polymer/surfactant flooding produced water with light oil (V(petroleum ether):V(benzene)=9:1), which had a comparatively simple component instead of crude oil with complex component. The interfacial tension, Zeta potential of oil droplets and the rheology of oil-water interface were investigated by spinning drop inferface tensiometer, Zeta potential analyzer and surface rheology analyzer.The effects of WPS (petroleum sulfonate), HPAM (partially hydrolyzed polyacrylamide)and salinity on oil-water separation were studied. The results showed that WPS could reduce the interfacial tension and enhance the stability of produced water.With the concentration of HPAM increasing, the bulk phase viscosity increased, which had little effects on final emulsion stability. The increasing salinity could greatly enhance the stability of produced water, which could provide reference for the study of emulsion stability of produced water.

Key words: simulated produced water, light oil, emulsion stability, polymer/surfactant flooding, salinity

中图分类号: 

  • X703
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