摘要
利用阴阳离子表面活性剂复配技术,在克拉玛依油田实际油水体系中获得了超低界面张力.通过添加非离子保护剂的第三组分,阴阳离子表面活性剂混合体系在克拉玛依油田回注水体系中的溶解度大大提高.确定了相关体系能够获得超低界面张力的表面活性剂的浓度和混合的比例范围,在克拉玛依油田的多个实际油水体系中获得了具有较大复配比例和较低表面活性剂浓度的实际配方,其中部分体系油水界面张力可接近10-4mN·m-1.同时,这类阴阳离子表面活性剂混合体系具有很好的抗吸附能力,在石英砂吸附72 h后体系依然呈现优良的超低界面张力.
Based on cationic and anionic surfactant mixed systems, ultra-low interfacial tension was achieved in the Karamay oil field systems. Upon the addition of a non-ionic third component, the solubility of the mixed cationic-anionic surfactant systems increased significantly. The mixed surfactant ratio and the concentration were determined by the application in the five areas of the Karamay oil field. The interfacial tension in some real systems was found to be around 10^-4 mN. m-1. These cationic and anionic surfactant mixed systems have a super-resistance adsorption capacity. The results show that after 72 h of quartz adsorption, these systems can still reduce the interfacial tension to an ultra-low level.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
2014年第4期693-698,共6页
Acta Physico-Chimica Sinica
基金
国家重点基础研究发展规划项目(973)(2013CB933800)
教育部博士点研究基金
新疆维吾尔自治区高技术研究发展计划项目(201215138)资助~~
关键词
阴阳离子表面活性剂
非离子保护剂
超低界面张力
提高采收率
抗吸附能力
Cationic and anionicsurfactant
Non-ionic protectant
Ultra-low interfacial tensionEnhanced oil recovery
Resistance adsorption capacity
