Systematic investigation of the effects of mixed cationic/anionic surfactants on the interfacial tension of a water/model oil system and their application to enhance crude oil recovery

被引：85

作者：

Jia, Han ^{[1
]}

Leng, Xu ^{[1
]}

Hu, Mei ^{[2
]}

Song, Yilei ^{[1
]}

Wu, Hongyan ^{[1
]}

Lian, Peng ^{[1
]}

Liang, Yipu ^{[1
]}

Zhu, Yanguang ^{[1
]}

Liu, Jingping ^{[1
]}

Zhou, Hongtao ^{[1
]}

机构：

[1] China Univ Petr East China, Coll Petr Engn, Qingdao 266580, Peoples R China

[2] Shandong Inst Food & Drug Control, Jinan 250101, Shandong, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2017年 / 529卷

基金：

中国国家自然科学基金;

关键词：

Chemical enhanced oil recovery; Mixed surfactants; Interfacial tension; Core flooding tests; IONIC LIQUIDS; NONIONIC SURFACTANTS; PHASE-BEHAVIOR; WATER; MIXTURES; SULFONATE; MICELLIZATION; IMIDAZOLIUM; ADSORPTION; VESICLES;

D O I：

10.1016/j.colsurfa.2017.06.055

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A mixed cationic surface-active ionic liquid/anionic surfactant system consisting of N-dodecyl-N-methylpyrrolidinium bromide (L12) and sodium dodecyl sulfate (SDS) was used for chemical enhanced oil recovery (EOR). The mixed L12/SDS surfactant system could cause remarkable effects on the interfacial tension (IFT) between water and a model oil (toluene and n-decane, v:v = 1:1), and the strength of the effect depended on the L12/SDS molar ratio. The effects of temperature and salinity on the IFT were systematically investigated to verify the mechanism of the mixed surfactants at the interface. Moreover, the mixed L12/SDS surfactant system showed the desired ability to reduce the IFT of water/crude oil, greatly improving oil recovery with the assistance of a polymer in core flooding tests.

引用

页码：621 / 627

页数：7

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