Article
Geosciences, Multidisciplinary
Mohammad Gholinezhadateni, Behzad Rostami
Summary: This study investigated the wettability alteration of the calcite surface using different aqueous phases and advanced surface analysis tools. The results showed significant effects of different aqueous phases on surface adsorption of carboxylic components, with the adsorption controlled by interactions of negative ions formed during carboxylic acid dissociation with positive salt ions in brine solvents.
NATURAL RESOURCES RESEARCH
(2021)
Article
Geochemistry & Geophysics
Ming Yue, Bingbing Li, Qiang Chen, Jidong Gao, Weiyao Zhu, Zhiyong Song
Summary: Spontaneous imbibition is considered an important method for enhanced oil recovery in unconventional reservoirs. This study experimentally investigated the variation characteristics of spontaneous imbibition at different pore scales and found a relationship between capillary diameter and imbibition recovery.
Article
Chemistry, Multidisciplinary
Ehsan Jafarbeigi, Yaser Ahmadi, Mohsen Mansouri, Shahab Ayatollahi
Summary: This study evaluates the performance of injecting ZnO-gamma Al2O3 nanoparticles in smart water (SMW) to enhance oil recovery. It investigates the effects of nanoparticles on contact angle, interfacial tension, and oil production using core flooding tests. The results showed that the introduction of ZnO-gamma Al2O3 nanoparticles reduced interfacial tension and improved oil recovery.
Article
Energy & Fuels
Lan Wang, Qianhui Zhao, Zhiping Li
Summary: With the increasing attention on greenhouse gas reduction, CO2 capture, utilization, and storage technology has rapidly developed. This research investigates the influence of CO2 injection on the properties of heavy oil in offshore reservoirs in eastern China through experiments and simulations, and defines the adaptability and oil displacement mechanism of CO2 flooding in the reservoirs.
Article
Energy & Fuels
Z. Zhang, Madhar Sahib Azad, J. J. Trivedi
Summary: This study addresses research gaps in understanding the dominant recovery mechanisms during surfactant flooding in unconventional, oil-wet reservoirs by investigating physico-chemical interactions and microfluidic studies using zwitterionic surfactant solutions. The observations show that significant IFT reduction and wettability alteration are both crucial for successful oil displacement in water-wet media during surfactant flooding in oil-wet formations.
Article
Energy & Fuels
Yajun Gao, Xiaoqing Xie, Shoulei Wang, Lihui Tang, Zhanli Geng, Junjian Li
Summary: In this study, constant injection rate core-flooding experiments were conducted on sandstone samples with different wettability. The impacts of wettability on pore-scale fluid distribution and remaining oil formation process were investigated. The results showed that wettability significantly influences the distribution and recovery of oil.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
F. Amrouche, M. J. Blunt, S. Iglauer, M. Short, T. Crosbie, E. Cordero, D. Xu
Summary: A hybrid technique using magnetic field and magnesium oxide nanoparticles has the potential to enhance oil production from oil-wet carbonate reservoirs. The addition of MgO nanoparticles to water increased the recovery factor of oil from rock samples. This cleaner alternative can improve oil extraction efficiency from existing reservoirs.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Energy & Fuels
Ya Yao, Mingzhen Wei, Baojun Bai
Summary: The study shows that surfactants can be effectively applied under various rock, oil, and water conditions, with anionic, cationic, and nonionic surfactants being widely used, where cationic surfactants have the highest application frequency. To achieve optimal performance, it is recommended to maintain surfactant concentration close to or above critical concentration, and consider blending different types of surfactants and the use of additives.
Article
Energy & Fuels
Ali Jalali, Ali Mohsenatabar Firozjaii, Seyed Reza Shadizadeh
Summary: This study uses a natural surfactant extracted from Cordia myxa leaf for surfactant flooding, and experimentally demonstrates that it can effectively reduce interfacial tension and improve wettability. Core flooding results show that the use of this surfactant can increase oil recovery and reduce residual oil saturation in porous media.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Energy & Fuels
Ziqiang Qin, Maziar Arshadi, Mohammad Piri
Summary: Recent advances in micro-CT technology have enabled studying multiphase flow in natural porous media at the pore scale. Experimental results in oil-wet carbonates showed that tertiary CWI and in situ CO2 exsolution can reduce remaining oil saturation left after water flooding. Furthermore, in situ contact angle measurements provided direct evidence of wettability reversal towards reduced oil wetness due to CWI.
Article
Energy & Fuels
Van Si Le, Keerti Vardhan Sharma, Alvinda Sri Hanamertani, Magda Ibrahim Youssif, Omar Elkhatib, Kaustubh Rane, Mohammad Piri, Amit Katiyar, Nagi Nagarajan
Summary: The performance of methane foam was evaluated through high-pressure and high-temperature experiments on oil-wet proppant packs. The study examined the effects of key factors such as surfactant concentration, foam quality, injection rate, salinity, operating pressure, and initial oil saturation on foam performance. Results showed that the presence of oil above a critical saturation hindered foam generation, while the steady-state pressure drops across the proppant packs were unaffected. The study also found that surfactant behavior varied based on their ionic nature and foam parameters.
Article
Materials Science, Multidisciplinary
Sandeep Rellegadla, Shikha Jain, Jitendra S. Sangwai, Meeta Lavania, Banwari Lal, Lisa Gieg, Aruliah Rajasekar, Achinta Bera, Akhil Agrawal
Summary: This study successfully altered the surface wettability by preparing VAG solution, which effectively enhanced the EOR potential.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Energy & Fuels
Fatemeh Ozar Asl, Ghasem Zargar, Abbas Khaksar Manshad, Stefan Iglauer, Alireza Keshavarz
Summary: This study investigates the synergistic effect of a synthesized nanocomposite and surfactant on enhanced oil recovery. Through various tests, it was found that the combination of surfactant and nanocomposite has a positive impact on each other and can improve oil recovery.
Article
Energy & Fuels
Zhengbin Wu, Liu Huiqing, Pengliang Cao, Rui Yang
Summary: This study used a three-dimensional physical model to investigate the efficiency of steam injection and steam/air injection in different reservoir rhythms. The results showed that the hybrid injection of steam and air could improve vertical sweep efficiency in thick heavy oil reservoirs, with varying effects in different types of reservoirs.
Article
Polymer Science
Agatha Densy dos Santos Francisco, Daniel Grasseschi, Regina Sandra Veiga Nascimento
Summary: The study synthesized TMC and TMC-C14 and evaluated their performance in altering rock wettability and promoting oil displacement through a series of experiments. The results showed that TMC performed better in changing wettability and promoting oil displacement.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)