Synergistic effects of Janus graphene oxide and surfactants on the heavy oil/water interfacial tension and their application to enhance heavy oil recovery

被引：55
作者：
Jia, Han [1 ,2 ]
Huang, Pan [1 ,2 ]
Han, Yugui [3 ]
Wang, Qiuxia [3 ]
Wei, Xin [1 ,2 ]
Huang, Wenjian [1 ,2 ]
Dai, Jiajun [1 ,2 ]
Song, Jinyong [1 ,2 ]
Yan, Hui [4 ]
Liu, Dexin [1 ,2 ]
机构：
[1] China Univ Petr East China, Sch Petr Engn, Shandong Key Lab Oilfield Chem, Qingdao 266580, Peoples R China
[2] China Univ Petr East China, Minist Educ, Key Lab Unconvent Oil & Gas Dev, Qingdao 266580, Peoples R China
[3] CNOOC China Ltd, Tianjin Branch, Bohai Oilfield Res Inst, Tianjin 300459, Peoples R China
[4] Liaocheng Univ, Sch Pharm, Liaocheng 252000, Shandong, Peoples R China
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2020年 / 314卷
基金：
中国国家自然科学基金;
关键词：
Janus graphene oxide; Surfactant; Synergistic effect; Heavy oil; EOR; CRUDE-OIL; MOLECULAR-DYNAMICS; HIGH-PERFORMANCE; WATER; NANOPARTICLE; SYSTEM; TEMPERATURE; REDUCTION; EMULSIONS; BEHAVIOR;
D O I：
10.1016/j.molliq.2020.113791
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：
The interfacial activities of graphene oxide (GO) and two kinds of Janus graphene oxide (JGO150 and JGO400), i.e., GO with one side being modified by two different amount of dodecylamine, were evaluated in various oil/water systems. Based on the results of IFT measurement, JGO showed the greater interfacial activity than original GO, especially for JG0400 which greatly reduced the heavy oil/water IFT to 0.12 mN/m. Molecular dynamic simulations were employed to illustrate the interfacial interaction between GO/JGO and oil molecules. Furthermore, the interaction between three kinds of nano-sheet materials and three types of surfactants, including dodecyltrimethylammonium bromide (DTAB), sodium dodecyl sulfate (SDS), and Triton X-100 (TX-100), were systematically investigated in the heavy oil/water system. The JGO400/DTAB system exhibited excellent synergistic effects to dramatically decrease the heavy oil/water IFT to 8 x 10(-3) mN/m, which was responsible for its remarkable ability to improve heavy oil recovery (19.5%) in core flooding tests. (C) 2020 Elsevier B.V. All rights reserved.
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页数：9
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