Review
Biochemistry & Molecular Biology
Qilei Tong, Zhenzhong Fan, Qingwang Liu, Sanyuan Qiao, Li Cai, Yuanfeng Fu, Xuesong Zhang, Ao Sun
Summary: Nanofluid-enhanced oil recovery (EOR) technology involves dispersing nanoparticles within a fluid to enhance oil production. However, the practical implementation of this technology faces challenges in terms of economic viability, stability, and adaptability of nanomaterials. To overcome these challenges, simpler and more readily available materials with straightforward modification techniques can be used. This review categorizes commonly employed nanofluids, explores optimization techniques, and provides a comprehensive overview of the mechanisms and practical applications of nanofluid EOR technology.
Article
Chemistry, Multidisciplinary
Karol Zapata, Yuber Rodriguez, Sergio H. Lopera, Farid B. Cortes, Camilo A. Franco
Summary: This study developed a novel bio-nanofluid using Solanum torvum extracts and nanoparticles to enhance oil recovery in an environmentally friendly way. The addition of MgO nanoparticles improved the interfacial tension and capillary number, leading to increased oil recovery. The study highlights the potential of using Solanum torvum and nanomaterials for enhanced oil recovery.
Review
Energy & Fuels
Mohsen Mirzaie Yegane, Pouyan E. Boukany, Pacelli Zitha
Summary: Enhancing the recovery from existing oilfields is crucial due to increased energy demand. Polymer flooding, the most frequently used chemical enhanced oil recovery (cEOR) method, has gained growing interest in recent years. This is attributed to the improved properties of polymers at high-salinity and high-temperature conditions and an increased understanding of their transport mechanisms in porous media. Advanced water-soluble polymers and the viscoelastic behavior of polymers in porous media have shown promising results in cEOR applications.
Article
Energy & Fuels
Qingyuan Chen, Zhouxin Wang, Shusong Zhang, Nanjun Lai
Summary: Polymer-enhanced foam (AOS-DYG) flooding was adopted as an enhanced oil recovery (EOR) technology for the Bohai oilfield to improve foam stability. The addition of polymer increased the thickening ability, liquid film thickness, and gas-liquid interface adsorption layer strength, significantly improving foam stability. Core displacement test results confirmed the excellent mobility control ability of AOS-DYG foam in porous media.
Article
Energy & Fuels
Parviz Mehrabianfar, Hossein Bahraminejad, Abbas Khaksar Manshad
Summary: Surface-active agents, such as surfactants, play a crucial role in optimizing key parameters in chemical Enhanced Oil Recovery (EOR) processes. Natural surfactants offer advantages such as lower production costs, lower adsorption capacity, and environmental friendliness.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Mechanics
Tongjing Liu, Derong Xu, Wei Lian, Wanli Kang, Bauyrzhan Sarsenbekuly
Summary: This study proposes the use of micro-emulsification to reduce the viscosity of heavy oil for enhanced oil recovery. The optimal injection parameters were determined through experimental tests, and the displacement mechanism of the microemulsion was revealed. The results show that the micro-emulsification technology can significantly improve the oil recovery efficiency of heavy oil.
Article
Chemistry, Physical
Haizhuang Jiang, Wanli Kang, Xinxin Li, Liang Peng, Hongbin Yang, Zhe Li, Jiaqi Wang, Wenming Li, Zhendong Gao, Sarsenbek Turtabayev
Summary: A novel viscoelastic N-2 foam with ultra-low interfacial tension and alkali-free was developed and showed excellent foam performance and enhanced oil recovery (EOR) effect in Xinjiang Oilfield. The foam's volume, stability, and oil displacement efficiency were significantly better than conventional methods in the study.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Polymer Science
Mamdouh T. Ghannam, Mohamed Y. E. Selim, Abdulrazag Y. Zekri, Nabil Esmail
Summary: This study investigated the viscoelastic behavior of crude oil-Xanthan gum emulsions through Creep-recovery examinations. The experimental measurements and analysis showed that the linear viscoelastic range of the emulsions was up to 1 Pa, and the compliance decreased with higher concentrations.
Article
Energy & Fuels
Chen Wang, Guanjun Qiu, Xueli Long, Tao Wang, Xing Zhang, Lidong Liang, Jianguang Bai, Zhigang Li, Liewei Qiu, Xiaowu Yang, Kang Zhang
Summary: Hooked gemini viscoelastic surfactant (HGVES) outperformed gemini viscoelastic surfactant (GVES) in terms of fracturing performance, with lower critical micelle concentrations and better viscoelastic behavior. The support suspension performance decreased with temperature, and HGVES showed no residue in all gel-breaking solutions, indicating its potential for enhanced oil recovery.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Chemistry, Physical
Mingwei Zhao, Xu Guo, Yining Wu, Caili Dai, Mingwei Gao, Ruoqin Yan, Yunlong Cheng, Yang Li, Xuguang Song, Xiangyu Wang, Zhixue Chen
Summary: A novel VES fracturing-flooding system composed of amphoteric and cationic surfactants shows excellent viscoelastic properties, shear resistance, and drag reduction rate. The system exhibits good anti-swelling properties, minimal formation damage, and dual effects of fracturing and flooding in enhancing oil recovery.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Review
Chemistry, Multidisciplinary
Yi Pan, Changqing Zhang, Shuangchun Yang, Yapeng Liu, Abbas Muhammad
Summary: This study provides a summary of the research progress and prospects of silica-based polymer nanofluids (NFs) in enhanced oil recovery (EOR). It includes the synthesis methods, effects, and mechanisms of silica-based polymer NFs. The study also discusses the mechanical properties, molecular dynamics simulation, and reservoir simulation of silica-based polymer NFs, as well as auxiliary technologies and future research directions. The results of this study will contribute to a better understanding of the mechanism and research progress of silica-based polymer NFs in EOR.
NANOTECHNOLOGY REVIEWS
(2023)
Article
Engineering, Environmental
Farnam Razzaghi-Koolaee, Parviz Mehrabianfar, Bahram Soltani Soulgani, Ali Esfandiarian
Summary: This research investigates the potential of a biodegradable surfactant derived from Acanthophyllum Plant Root Extract (APRE) for enhanced oil recovery in carbonate reservoirs. Various tests were conducted to evaluate the EOR potential, including interfacial tension measurement, wettability alteration assessment, emulsion stability, compatibility, and surfactant flooding. The results show that the APRE surfactant has the potential to improve oil recovery in carbonate reservoirs.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Polymer Science
Bashirul Haq
Summary: Green enhanced oil recovery (GEOR) is an environmentally friendly technique that improves oil recovery efficiency by injecting specific green fluids to increase residual oil production. Studies have shown that certain green SP formulations can significantly enhance residual oil production in carbonate cores, such as a mixture of APG, XG, and butanone.
Article
Energy & Fuels
Subhash Ayirala, Abdulkareem AlSofi, Zuhair AlYousef, Jinxun Wang, Moataz Abu Alsaud, Ali AlYousef
Summary: By synergizing the composition of injection water through SmartWater technology, enhanced oil recovery (EOR) methods can be optimized to achieve higher oil recoveries and reduce the volume requirements of chemicals and gas. This study demonstrates the significant benefits of different SmartWater-based synergistic EOR technologies, which can have practical implications for more efficient and economical EOR projects in the field.
Article
Chemistry, Multidisciplinary
Junqi Wang, Feng Gu, Weiwei Han, Lipei Fu, Sanbao Dong, Ziran Zhang, Zhangkun Ren, Kaili Liao
Summary: In this study, cardanol polyoxyethylene ether (CPE) was synthesized from natural biomass cardanol, and its properties in terms of surface/interface, salt and temperature resistance, wettability, emulsification, and oil displacement were experimentally studied. The results showed that CPE exhibited good interfacial activity and tolerance to temperature and salt, reducing the oil-water interfacial tension to 10(-1) mN/m. The emulsion formed by CPE was stable, with smaller droplet size at higher CPE dosage. The stabilized emulsion by CPE effectively enhanced oil recovery by 11.8%, indicating its potential application in the field of enhanced oil recovery (EOR).
Article
Chemistry, Physical
Ruizhi Hu, Shanfa Tang, Musa Mpelwa, Lijun Jin, Zhaowen Jiang, Shuyun Feng, Yahui Zheng
Summary: In this study, the viscosity and viscoelasticity of Gemini surfactant solutions with different molecular structures were measured and the micelle structure formed by self-assembly in the solution was observed. The effect of the molecular structure of anionic Gemini surfactants on the rheological properties of the solution was systematically studied. It was found that the carboxylate Gemini surfactants with long hydrophobic carbon chains and a moderate spacer group had better rheological properties in aqueous solution. The change in the molecular structure of the Gemini surfactant led to changes in the micelle microstructure and ultimately affected the solution's rheological properties.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2022)