文献类型：期刊文献

英文题名：Sacrificing Surfactants to Improve Oil Recovery: A Fluid Density Functional Theory Study

作者：Xu, Zheng[1,2];Cheng, Jin[1,2];Hu, Yuanlong[1,2,3];Wu, Yanghejia[1,2,4,5];Fan, Siyuan[1,2,4,5];Yu, Gaoxin[1,2,4,5];Wang, Yunwen[1,2,4,5];Lian, Cheng[1,2,3];Liu, Honglai[1,2,3]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Frontiers Sci Ctr Materiobiol & Dynam Chem, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[4]Shanghai Nanyang High Sch, Shanghai XuHui High Sch, Shanghai 200030, Peoples R China;[5]Shanghai 2 High Sch, Shanghai 200030, Peoples R China

年份：2024

卷号：40

期号：48

起止页码：25447

外文期刊名：LANGMUIR

收录：;EI(收录号：20244817425793);WOS:【SCI-EXPANDED(收录号:WOS:001359720200001)】；

基金：This work was sponsored by the National Key Research and Development Program of China (No. 2022YFA1503501), the National Natural Science Foundation of China (No. 22378112, 22278127), Shanghai Pilot Program for Basic Research (22TQ1400100-18), and 21C Innovation Laboratory, Contemporary Amperex Technology Ltd by project No. 21C-368 OP-202312.

语种：英文

外文关键词：Chemical injection (Enhanced recovery) - Crude oil - Density of liquids - Heavy oil production - Oil well flooding - Petroleum reservoir evaluation

摘要：In the chemically enhanced oil recovery (CEOR) processes, heavy components in crude oil, such as asphaltenes, adhere to reservoir rocks, significantly impeding crude oil extraction. Surfactants are frequently utilized to improve oil recovery due to their ability to reduce interfacial tension (IFT) and modify surface wettability. Nevertheless, indiscriminate surfactant usage may result in resource wastage and hinder the attainment of optimal recovery outcomes. Therefore, it is urgent to accurately and efficiently screen out optimal surfactants suitable for different oil fields. This work employs fluid density functional theory (FDFT) to investigate the competitive adsorption mechanism of surfactants and asphaltenes on rock interfaces. We examined the impact of surfactants on asphaltene adsorption and determined the optimal surfactant concentration and chain length for differing reservoir electrical properties and asphaltene compositions. Furthermore, a comprehensive assessment of surfactants was conducted, considering both performance and economic factors. The findings contribute to a deeper comprehension of the displacement effect of surfactants on asphaltenes and offer scientific screening solutions for surfactants in oil recovery processes.