Article
Chemistry, Physical
Tianhong Zhao, Qiongqiong Guo, Wushan Sun, Sijia Li, Fan He, Xing Dai, Zheng Rao
Summary: A type of cation-nonionic gemini surfactants was prepared through quaternization reaction, and ACGE was proved to have better performance than AC1205, while AS37 showed the best performance due to the synergistic effect with SDS.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Radman Hosseinzadeh Semnani, Mahsa Baghban Salehi, Babak Mokhtarani, Ali Sharifi, Mojtaba Mirzaei, Vahid Taghikhani
Summary: This study investigates the performance of novel ionic liquids in a lab-scale Enhanced Oil Recovery (EOR) setup compatible with Iranian oil reservoir conditions. The results demonstrate the resistance of these ionic liquids to harsh reservoir conditions and their potential to improve oil field production efficiency.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Energy & Fuels
Ahmed Al-Ghamdi, Bashirul Haq, Dhafer Al-Shehri, Nasiru S. Muhammed, Mohamed Mahmoud
Summary: This study investigates the efficacy of green surfactants in sandstone reservoirs for chemical enhanced oil recovery. The results show that the RL formulation, consisting of rhamnolipid, alkyl polyglycoside (APG), and lecithin, performed the best in terms of phase behavior, interfacial tension, and core-flooding experiments, with a tertiary recovery of 24% and a total recovery of approximately 70%. These findings contribute to a better understanding of injection design and biosurfactant formulation selection for green enhanced oil recovery technology.
Article
Chemistry, Physical
Han Jia, Juan He, Qiuxia Wang, Yingbiao Xu, Lingyu Zhang, Haidong Jia, Lin Song, Yuanbo Wang, Qiuyu Xie, Hongyan Wu
Summary: In this study, reversible redox-responsive double-tailed ferrocenyl surfactants were fabricated to address the issues faced by traditional surfactants in enhanced oil recovery. The surfactants demonstrated superior interfacial activity that could be accurately switched by redox triggers. The experiments showed that these surfactants could emulsify kerosene in pore media and be recycled by the addition of Na2SO3.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Han Jia, Juan He, Qiuxia Wang, Yingbiao Xu, Lingyu Zhang, Haidong Jia, Lin Song, Yuanbo Wang, Qiuyu Xie, Hongyan Wu
Summary: In this study, a new redox-responsive double-tailed ferrocenyl surfactant was fabricated through dynamic supramolecular assembly, and its interfacial behavior and emulsifying performance were evaluated. The results showed that the interfacial activity of the surfactant could be accurately switched by redox triggers, indicating its potential in enhanced oil recovery and recycling.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Sivabalan Sakthivel
Summary: This study investigated the adsorptive behavior of imidazolium-based ionic liquids (ILs) on oil-wet carbonate reservoirs and evaluated their performance in oil recovery. The results showed that ILs improved oil flowability and increased oil recovery. In comparison to conventional surfactants, surfactants performed better in altering wettability and reducing interfacial tension.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Min Zhang, Wanli Kang, Hongbin Yang, Zhe Li, Xinxin Li, Bobo Zhou, Xin Kang, Menglan Li, Bauyrzhan Sarsenbekuly
Summary: This study investigates the application of erucic acid amidopropyl-betaine (EDAB) and sodium alkyl sulfate (SDS) in constructing worm-like micelle systems for enhanced oil recovery. The results demonstrate that under specific conditions, the EDAB/SDS system exhibits viscoelastic fluid behavior, forming longer linear worm-like micelles and larger network structures. The rheological properties of the EDAB/SDS system are influenced by pH, temperature, and salt concentration.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Rohit Kumar Saw, Deep Sinojiya, Prathibha Pillai, Shubham Prakash, Ajay Mandal
Summary: This study aims to investigate the synergistic effects of two nonionic surfactants (Tergitol 15-S-12 and PEG 600) on surface properties, including surface tension, interfacial tension (IFT), and wettability alteration, in chemically enhanced oil recovery (EOR). The optimum composition of the surfactant mixture, determined through surface tension measurement, showed a minimum surface tension value of 30.3 mN/m at a concentration of 225 ppm of Tergitol 15-S-12 and 1 wt % of PEG 600. The surfactant mixture exhibited an ultra-low IFT of 0.672 mN/m at optimum salinity. The wettability alteration study revealed a shift in rock wettability from oil-wet to water-wet region through contact angle observations and X-ray diffraction analysis.
Review
Energy & Fuels
Sarkar Muheedin Hama, Abbas Khaksar Manshad, Jagar A. Ali
Summary: Injecting surfactants through cEOR has attracted significant attention in improving oil recovery by altering fluid/rock and/or fluid/fluid interaction. The reduction in interfacial tension (IFT) by adsorption of surfactants on the oil/water interface plays a crucial role in mobilizing trapped oil in porous media. However, the toxicity, high cost, and environmental issues associated with chemical surfactants have led to the search for natural alternatives. This study provides a comprehensive overview of natural surfactant types and their performance in EOR, including the impact of fabrication methods, nanoparticle addition, and salinity. It was found that natural surfactants synthesized from seed oil showed superior performance compared to those extracted from other plant parts, achieving IFT reduction of up to 98% and improving ultimate oil recovery by 2-40% of the original oil in place (OOIP).
Article
Chemistry, Multidisciplinary
Himanshu Kesarwani, Ajay Mandal, Shivanjali Sharma
Summary: This study focuses on the use of fatty acid methyl sulfonated products derived from Flaxseed oil for enhanced oil recovery. Characterization tests showed that the Flaxseed surfactant had a low critical micelle concentration, reduced interfacial tension, and exhibited desirable rheological properties. Sand pack flooding tests demonstrated that the use of Flaxseed surfactant significantly increased the oil recovery rate.
Article
Engineering, Chemical
Zhen Wen, Peiwen Xiao, Pingmei Wang, Xue Han, Jule Ma, Shuangliang Zhao
Summary: This study systematically explores the influence of alkylbenzene sulfonate Gemini surfactants on the interfacial properties of dodecane/water systems using a dissipative particle dynamics simulation. It is found that increasing the hydrophobic chain length and spacer length can decrease the critical micelle concentration, induce nano-mixing phenomenon, and transform the system from a lamellar interface state to a micelle state.
CHEMICAL ENGINEERING SCIENCE
(2022)
Review
Chemistry, Physical
Dennis Yaw Atta, Berihun Mamo Negash, Nurudeen Yekeen, Azeb Demisi Habte
Summary: Natural surfactants as EOR agents show great potential with good performance and environmental friendly properties. Compared to conventional surfactants, they are cheaper and biodegradable.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Review
Energy & Fuels
Talha Majeed, Muhammad Shahzad Kamal, Xianmin Zhou, Theis Solling
Summary: The application of foam in the upstream petroleum industry has attracted attention, with stability being crucial for success, and nanoparticles playing a significant role in stabilizing the foam.
Article
Chemistry, Multidisciplinary
Yanfeng He, Kaili Liao, Jinmei Bai, Lipei Fu, Qianli Ma, Xiang Zhang, Zhangkun Ren, Weiyang Wang
Summary: The study explores the surfactant/nanoparticle flooding system based on CDEA and nano-SiO2, which effectively reduces oil-water interfacial tension, maintains system stability, and increases oil recovery rate.
Article
Chemistry, Multidisciplinary
Shuyan Chen, Xueliang Li, Qin Lei, Yuhua Han, Xunping Zhou, Jianan Zhang
Summary: The study focused on synthesizing lignin carboxyl betaine zwitterionic surfactants (LCBS) from alkali lignin through a three-step reaction. The synthesized LCBS were characterized and their physicochemical properties were evaluated for enhanced oil recovery (EOR). Results showed that the LCBS surfactants exhibited high surface activity, emulsifying performance, temperature resistance, and salt resistance. Low interfacial tension (IFT) values were achieved with the addition of weak alkali, suggesting the effectiveness of LCBS surfactants in extracting crude oil containing heavy components.