西南石油大学学报(自然科学版) ›› 2013, Vol. 35 ›› Issue (1): 155-159.

• 油气化学工程与化工 • 上一篇    下一篇

聚–表二元驱油体系性能对比研究

靖波1,2,张健1,2,吕鑫1,2,姜维东1,2,冯国智1,2   

  1. 1.“海洋石油高效开发”国家重点实验室,北京东城100027; 2. 中海油研究总院,北京东城100027
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2013-02-01 发布日期:2013-02-01

Comparative Study For The Properties Of Different Surfactant/PolymerBinary Flooding Systems

Jing bo1,2, Zhang Jian1,2, Lü Xin1,2, Jiang Weidong1,2, Feng Guozhi1,2   

  1. 1. State Key Lab of Offshore Oil Exploitation,Dongcheng,Beijing 100027,China2. Research Institute,CNOOC,Chaoyang,Beijing 100027,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-02-01 Published:2013-02-01

摘要: 基于不同分子结构,探讨了表面活性剂分子与聚合物分子、高价金属离子的相互作用机理,认为与钙离子结合
能力排序为:十二烷基硫酸钠> 部分水解聚丙烯酰胺> 十二烷基苯磺酸钠,从而导致聚–表二元复配体系黏度的差异。同
时,驱油体系驱油实验的结果表明,驱油效率主要受到体系黏度、油水界面张力的影响,但驱油体系性能相近的情况下,
具有更大分子截面积的表面活性剂,在驱替过程中,会表现出较好的界面张力保持能力,得到相对较高的驱油效率。

关键词: 部分水解聚丙烯酰胺, 表面活性剂, 二元驱, 黏度, 界面张力, 驱油效率

Abstract: Based on the different molecular structures,interaction mechanisms of surfactant interaction with polymer and
high-valent metal ions were discussed. The bonding ability of calcium ions ranks as SDS > HPAM >SDBS,which results in
the different viscosities of surfactant/polymer binary systems. Experiments show that oil displacement efficiency was mainly
influenced by their viscosity and interfacial tension. However,for similar property systems,the surfactant with bigger molecular
surface cross-sectional area is more helpful to enhance oil displacement efficiency. To some extent,such surfactant would
maintain original interfacial tension while flooding.

Key words: partially hydrolyzed polyacrylamide, surfactant, binary flooding system, viscosity, interfacial tension, oil displacementefficiency