›› 2013, Vol. 34 ›› Issue (1): 1-1.

• 论文 •    

枝型油溶性降黏剂的合成及降黏机理

全红平,明显森,黄志宇,张太亮,鲁红升,崔荣华   

  1. (西南石油大学 化学化工学院,成都 610500)
  • 出版日期:2019-01-01 发布日期:1905-07-09

Synthesis and Mechanism of Dendritic OilSoluble Visbreaking Agent

QUAN Hongping, MING Xiansen, HUANG Zhiyu, ZHANG Tailiang, LU Hongsheng, CUI Ronghua   

  1. (College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China)
  • Online:2019-01-01 Published:1905-07-09

摘要: 针对目前油溶性稠油降黏剂存在使用条件受限和降黏效果差等问题,研制了一种枝型油溶性原油降黏剂。其降黏机理是:降黏剂中的极性基团可以和原油中的胶质沥青质形成氢键;降黏剂中含有的长链烷基也可以吸附一些胶质沥青质,有效地阻碍了胶质沥青质的堆积;而降黏剂所具有的枝型结构可以更进一步将胶质沥青质分散开来,达到降黏的目的。该降黏剂的降黏效果好于目前使用的油溶性降黏剂,对多种稠油均具有一定的降黏效果。

Abstract: In view of problems that the oil?soluble heavy oil visbreaking agent has limited conditions for application and low response for visbreaking, a new kind of dendritic oil?soluble heavy oil visbreaking agent was developed. Its visbreaking mechanism is that the polar group in the agent can form hydrogen bond by combining with colloidal asphaltene, and the long?chain alkyl group in it could adsorb a part of colloidal asphaltene, thus inhibiting the accumulation of colloidal asphaltene. In addition, the dendritic structure of this agent allows the colloidal asphaltene to be further dispersed for the purpose of visbreaking. Case study indicates that this agent is better than the oil?soluble visbreaking agent available at present and suitable for visbreaking of multiple heavy oils

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