JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2010, Vol. 40 ›› Issue (4): 117-120.

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MA Bao-dong1, GAO Bao-yu2*, LU Lei3, ZHANG Yong-qiang2   

  1. 1. Geological Scientific Research Institute,  Shengli Oil Field Branch, China Petrochemical Co. Ltd., Dongying 257015,  China；
    2. School of Environmental Science and Engineering, Shandong University, Jinan 250100,  China;
    3. College of Chemistry & Chemical Engineering,  China University of Petroleum(East China), Qingdao 266555,  China
  • Received:2009-10-09 Online:2010-08-16 Published:2009-10-09

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Abstract:

A new characterization method of oil-water emulsion dynamic characteristics was studied by measuring the size of oil droplets, and the grain size variations of different simulated emulsions were measured. The dynamic characteristics of the oilwater emulsion formed by sodium dodecylbenzene sulfonate(SDBS), nonyl phenol polyethenoxy ether(NP-10) and alkyl ethoxylation sodium sulfate(AES) were compared. The effect of polymer and ethanol in the formation of the oilwater emulsion was studied, and the emulsification mechanism was preliminarily discussed. The results showed that this method could not only reflect the emulsifying speed of the oil-water emulsion, but also suggest the variation regularity of the droplets sizes in the oil-water emulsion. This study will play an important role on the study of the oil-water emulsion forming process and stabilization in practice.

Key words:  polymer/surfactant flooding, oil-water emulsion, dynamic characteristics

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