共 50 条
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:84
|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
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.
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页码:621 / 627
页数:7
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