Volume 40 Issue 1
Jan.  2012
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Lan Qiang, Li Gongrang, Zhang Jinghui, Zhang Hong, He Xinggui, Liu Baofeng. Preparation of Paraffin Nano-Emulsion with Low-Energy Emulsification[J]. Petroleum Drilling Techniques, 2012, 40(1): 58-63. DOI: 10.3969/j.issn.1001-0890.2012.01.012
Citation: Lan Qiang, Li Gongrang, Zhang Jinghui, Zhang Hong, He Xinggui, Liu Baofeng. Preparation of Paraffin Nano-Emulsion with Low-Energy Emulsification[J]. Petroleum Drilling Techniques, 2012, 40(1): 58-63. DOI: 10.3969/j.issn.1001-0890.2012.01.012
shu

Preparation of Paraffin Nano-Emulsion with Low-Energy Emulsification

  • 1.

    Drilling Technology Research Institute of Shengli Petroleum Administration, Dongying, Shandong, 257017, China;

  • 2.

    College of Chemical Engineering, China University of Petroleum(Huadong), Qingdao, Shandong, 266555, China

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  • Received Date: February 04, 2010
  • Revised Date: December 06, 2011
    Graphical Abstract
    • Abstract
  • The size distribution of current industrial production of nano-emulsion is very wide,this product consumes high energy and the emulsification is not much sufficient,and its stability is very poor.The study of paraffin nano-emulsion with low-energy emulsification is more important from the viewpoints of energy saving and good stability.This paper studied the preparation process and properties of paraffin nano-emulsions,and some influencing factors of emulsification,such as surfactant’s HLB values and types,surfactant dosages,emulsification temperature,ration of water and oil mixture,and inorganic salt concentration etc.according to the results of influencing factor of nano-emulsion preparation,taking into account the low energy emulsification feature and cost saving,the best emulsifiers had been optimized as the mixture of two kinds of non-ionic surfactants A1 and A2,the best emulsification conditions as white oil∶paraffin∶surfactants mixture=2∶2∶1∶5,emulsification temperature 75℃,and emulsification period 30min,the optimized emulsification method was recommended.The performance evaluation results of paraffin nano-emulsion with low-energy emulsification showed that,the paraffin nano-emulsion had good performance,such as preferable inhibition,outstanding lubrication,favorable reservoir protection,and little effect on the apparent property of drilling fluids.
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