Article
Chemistry, Multidisciplinary
Omid Tavakkoli, Hesam Kamyab, Radzuan Junin, Veeramuthu Ashokkumar, Ali Shariati, Abdeliazim Mustafa Mohamed
Summary: This study examines the synergistic effect of sodium dodecyl sulfate (SDS) as an anionic surfactant and aluminum oxide (Al2O3) nanoparticles on the efficiency of surfactant flooding. The results show that the presence of nanoparticles significantly enhances the reduction of interfacial tension between the aqueous phase and crude oil and decreases the adsorption density of SDS onto sandstone rock. The study also finds that there is an optimal concentration of Al2O3 nanoparticles that maximizes oil recovery.
Article
Energy & Fuels
Saman Khosravi Magham, Jagar A. Ali, Abbas Khaksar Manshad, Pshtiwan T. Jaf, Buya S. Hisqel
Summary: In this study, the extract of the Passiflora plant was used as a natural surfactant for enhanced oil recovery. The optimal critical micelle concentration (CMC) was found to be 4 wt%, which resulted in a minimum interfacial tension (IFT) of 13 mN/m and a contact angle (CA) of 55 degrees on the surface of the carbonate rock. The surfactant solution enabled an additional 7.5% original oil in place (OOIP) to be extracted from the rock plug.
Article
Energy & Fuels
Liu Xuefen, Kang Yili, Yan Lingling, Tian Jian, Li Jianfeng, You Lijun
Summary: This study investigates the effect of different surfactants on changing rock surface tension and interfacial tension, as well as their impact on enhanced oil recovery in tight oil reservoirs. The results show that fluoride FC-1 and GS surfactant have the potential to alter wettability and reduce interfacial tension. The study reveals that changing rock wettability is more favorable for oil recovery in tight sandstone oil reservoirs than reducing interfacial tension.
Article
Energy & Fuels
Mehran Mirzavandi, Jagar A. Ali, Abbas Khaksar Manshad, Barham Majeed, Barham Sabir Mahmood, Amir H. Mohammadi, Stefan Iglauer, Alireza Keshavarz
Summary: Nanomaterials, specifically silica-graphene quantum dots (Si-GQDs), have been synthesized and dispersed in water to form nanofluids. These nanofluids exhibit significant reduction in interfacial tension and wettability alteration, leading to enhanced oil recovery from carbonate reservoirs. The experimental results show that the nanofluids formulated with 1000 ppm Si-GQDs in distilled water enable an additional 14.4% oil recovery due to the reduction in interfacial tension and contact angle.
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
Geochemistry & Geophysics
Xiujun Wang
Summary: In this study, the laponite particles were modified using the interfacial reaction method with 3-glycidoxypropyltrimethoxysilane and octadecylamine, and their structure, morphology, and displacement performance were tested. The modified particles were characterized using elemental analysis, Fourier-transform infrared spectrometer, thermogravimetric analysis, and transmission electron microscopy, showing successful modification of the laponite particles. The study found that the modified particles, called LAS, could accumulate at the interface, reduce interfacial tension, and have a good emulsification effect. LAS could also change the wettability of rocks and extract oil at low concentration.
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
Energy & Fuels
Mehdi Zallaghi, Ali Reza Khaz'ali
Summary: The study investigates the efficiency of a mixture of cationic and nonionic surfactants combined with smart water for enhanced oil recovery in carbonate reservoirs. Through experiments and analysis, it demonstrates a strong synergy between low salinity water and surfactant for recovering oil from carbonate reservoirs, showing significant improvements in oil recovery.
Article
Energy & Fuels
Jefferson David Coutinho de Araujo, Gregory Vinicius Bezerra de Oliveira, Maria Clara de Meneses Lourenco, Francisco Moisees Freitas da Costa, Dennys Correia da Silva, Daniel Alberton Haas, Tereza Neuma de Castro Dantas, Marcos Allyson Felipe Rodrigues, Alcides de Oliveira Wanderley Neto
Summary: Fossil fuels, especially oil, currently dominate the global energy matrix. To meet the projected 30% increase in oil demand by 2040, it is necessary to improve oil recovery from reservoirs and exploration viability in mature fields. This study explores the synergy between steam and non-ionic surfactants to enhance oil extraction, and the results show that combining NP-100EO surfactant with steam achieves the highest oil recovery rate (64.88%). The proposed technique of steam injection and surfactant solution shows promise in revitalizing marginal fields and stimulating local and regional development.
Article
Energy & Fuels
Tahany Mahmoud, Nadia A. Samak, M. M. Abdelhamid, A. A. Aboulrous, Jianmin Xing
Summary: The study focused on enhancing biosurfactant production using bacteria isolated from Egyptian crude oils, showing promising results in improving surfactin and trehalose productivity by optimizing carbon sources and cultivation strategies. The properties and effectiveness of the produced biosurfactants were demonstrated through various tests, indicating their potential for enhanced oil recovery.
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
Chemistry, Multidisciplinary
Omid Tavakkoli, Hesam Kamyab, Radzuan Junin, Veeramuthu Ashokkumar, Ali Shariati, Abdeliazim Mustafa Mohamed
Summary: This study investigates the synergistic effect of aluminum oxide nanoparticles on the efficiency of sodium dodecyl sulfate as an anionic surfactant in surfactant flooding. The results show that the nanoparticles significantly enhance the reduction of interfacial tension between the aqueous phase and crude oil, and reduce the adsorption density of the surfactant onto sandstone rock. Additionally, the addition of nanoparticles improves the oil recovery by approximately 15%.
Article
Biochemistry & Molecular Biology
Bennet Nii Tackie-Otoo, Mohammed Abdalla Ayoub Mohammed, Hazman Akmal Bin Mohd Zalghani, Anas M. Hassan, Pearl Isabellah Murungi, Grace Amabel Tabaaza
Summary: This study investigates the potential of a combination of 1-hexadecyl-3-methyl imidazolium bromide (C(16)mimBr) and monoethanolamine (ETA) as an alkali-surfactant (AS) formulation for enhanced oil recovery in carbonate reservoirs at high salinity, high-temperature conditions.
Review
Energy & Fuels
Wen Sun, Hui Pu, David Pierce, Julia Xiaojun Zhao
Summary: Nanotechnology is becoming increasingly important in the upstream sector of the oil and gas industry. SiO2-based nanoparticles have positive impacts on enhanced oil recovery but also face challenges, requiring further research.
Article
Chemistry, Physical
Lin Li, Jia Chen, Xiao Jin, Zizhao Wang, Yining Wu, Caili Dai
Summary: Surfactant flooding is an effective method for enhanced oil recovery, and developing novel surfactants with excellent water-solid interfacial wettability control capability can significantly improve oil recovery efficiency. The novel polyhydroxy anionic surfactants synthesized in this study showed superior performance in recovering residual oil adhered to oil-wet rocks, leading to an increase in oil recovery by 10.15%.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Energy & Fuels
Shuai Zhao, Hehua Wang, Xing Zhao, Chengdong Yuan, Qi Jiang, Mikhail A. Varfolomeev, Vladislav Sudakov
Summary: This study investigated the combustion characteristics of heavy oil under different permeability ranges through experiments and numerical simulations. The results were classified into four categories: no formation of consecutive combustion front below 180 mD, formation of consecutive combustion front with serious plugging effect between 180 and 250 mD, formation of stable combustion front with weak plugging effect between 250 and 500 mD, and formation of stable combustion front with negligible plugging effect above 500 mD. For heavy oil reservoirs with permeabilities lower than 250 mD, attention should be paid to the variations in combustion front temperature and displacement pressure difference during the initial period of combustion, and appropriate measures should be taken to increase heat release.
Article
Energy & Fuels
Alexis Tirado, Guillermo Felix, Mikhail A. Varfolomeev, Chengdong Yuan, Jorge Ancheyta
Summary: A kinetic model was developed to predict the distribution of SARA fractions during the catalytic aquathermolysis process. The model showed good agreement with experimental data and provided insights into the reaction mechanism and product selectivity. The results highlighted the importance of feed properties, operating conditions, and catalyst type in determining the reaction pathways and product distributions.
Article
Engineering, Chemical
Alexis Tirado, Guillermo Felix, Mikhail A. Varfolomeev, Chengdong Yuan, Jorge Ancheyta
Summary: An analysis was conducted on the reaction pathways in the hydrocracking of vacuum gas oil (VGO) using parallel and in-series reaction schemes. Kinetic parameters were estimated based on experimental data and diverse crucial factors using a Ni-Mo-F3.6/ASA-Al2O3 catalyst in a temperature range of 380-410 degrees C and 10 mPa. The results showed that the kinetic model based on parallel reaction pathways had a better fit compared to the literature. Sensitivity analysis, parity plot, and residual analysis were performed to ensure the suitability of the kinetic parameters. Each kinetic model presented a good fit with the experimental data, with average absolute error below 5%.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Energy & Fuels
Alexis Tirado, Guillermo Felix, Ameen A. Al-Muntaser, Mohamed Said Chemam, Chengdong Yuan, Mikhail A. Varfolomeev, Jorge Ancheyta
Summary: Despite significant efforts to understand the reaction mechanism of asphaltenes during aquathermolysis reaction, knowledge about their molecular structures and reaction pathways remains limited. This work extensively reviews and discusses experimental results from different samples of asphaltenes during aquathermolysis reaction to obtain information on their elemental composition, functional groups, and average structural parameters. The findings provide theoretical support for future research on the aquathermolysis of heavy crude oils with various catalysts and highlight the impact of operating conditions, catalyst type, and asphaltene structure on the changes in asphaltenes.
Article
Engineering, Chemical
Alexis Tirado, Guillermo Felix, Muneer A. Suwaid, Ameen A. Al-Muntaser, Dmitry A. Antonenko, Igor S. Afanasiev, Mikhail A. Varfolomeev, Chengdong Yuan, Jorge Ancheyta
Summary: Oil-soluble catalysts have been found to improve the flow properties of heavy crude oil during steam injection processes. In order to better understand the effects and reaction mechanisms of these catalysts, further studies using complex kinetic models are needed. This study investigated the catalytic effect of copper oleate on aquathermolysis of heavy crude oil, and developed a kinetic model to predict the yield of different fractions and gases. The results showed that copper oleate reduces polyaddition reactions of heavy fractions and favors the production of lighter compounds.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Thermodynamics
Shuai Zhao, Wanfen Pu, Qi Jiang, Chengdong Yuan, Mikhail A. Varfolomeev, Vladislav Sudakov
Summary: This study explores the application of in-situ combustion technique in ultra-deep high-temperature heavy oil reservoirs. Experimental and simulation analysis identified key factors influencing the establishment and propagation of combustion front. It is recommended to introduce oxidation catalysts after 6 years of air injection to enhance combustion reactions.
Article
Energy & Fuels
Emil R. Saifullin, Sergei A. Nazarychev, Dmitrii A. Zharkov, Aleksei O. Malahov, Mikhail A. Varfolomeev, Chengdong Yuan, Shinar Zhanbossynova, Maiia V. Zvada, Pavel N. Belovus
Summary: Gas breakthrough is a common issue in gas-and-oil fields development. Chemical gas-blocking agents have gained interest due to their adjustable properties. In this study, three hydrolyzed polyacrylamide-based gas-blocking agents were compared for their blocking ability and selectivity, with foam-gel showing the best performance.
Article
Energy & Fuels
Shuai Zhao, Wanfen Pu, Hao Gao, Ruofan Wang, Mikhail A. Varfolomeev, Qi Jiang, Chengdong Yuan
Summary: A thermogravimetric study was conducted to investigate the isothermal low-temperature oxidation (LTO) characteristics of heavy crude oil and its oxidized oils. The study determined the appropriate reaction orders and activation energies for the different oil samples, and found that the oils oxidized at higher temperatures had higher residual mass after thermal degradation. The developed isothermal kinetics was shown to be a useful tool for predicting the LTO behavior of heavy oils.
Article
Energy & Fuels
Wenlian Xiao, Jitian Ren, Wanfen Pu, Chengdong Yuan, Lingwei Meng, Lingli Zheng, Hui Zhao, Qianrui Cheng
Summary: Foam-assisted deoxidized-air flooding is a promising technique for improving oil recovery in low-permeability oil reservoirs. This study conducted laboratory experiments and field pilot analysis in a low-permeability oil reservoir in China to investigate the displacement mechanism of foam-assisted deoxidized-air flooding. The results showed that the gas-liquid ratio had different effects on oil recovery at different water cut stages, and the differences in oil recovery were linked to changes in the displacement mechanism.
Article
Energy & Fuels
Alexander V. Bolotov, Chengdong Yuan, Mikhail A. Varfolomeev, Usman H. Taura, Yahya M. Al-Wahaibi, Ilgiz F. Minkhanov, Vadim K. Derevyanko, Saif Al-Bahry, Sanket Joshi, Aidar R. Tazeev, Rail I. Kadyrov, Dmitrii A. Emelianov, Wanfen Pu, Ahmed Naabi, Majid Hasani, Rashid Said Al Busaidi
Summary: The idea of in-situ combustion (ISC) for oil shale development and conversion has been proposed recently. This work provides experimental evidence of the successful establishment and propagation of combustion front in fractured, low-permeability oil shale.
Article
Engineering, Chemical
Alexis Tirado, Guillermo Felix, Ameen A. Al-Muntaser, Chengdong Yuan, Mikhail A. Varfolomeev, Jorge Ancheyta
Summary: Steam-based technologies, particularly catalytic aquathermolysis, show great promise for increasing the recovery factor of heavy crude oil. This process requires proper experimentation to evaluate operational conditions, catalyst performance, and reaction kinetics. This study provides a comprehensive review of experimental results on diverse upgraded oil samples, discussing the effects of various reaction parameters and highlighting behaviors in gas production and viscosity reduction for future research and development. The reactivity of chemical compounds involved plays a significant role in crude oil upgrading, necessitating detailed analysis for experimental development and scale-up.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Energy & Fuels
Liangliang Wang, Tengfei Wang, Yao Zhang, Xiaoqiang Peng, Wei Song, Jinshun Yang, Chengdong Yuan
Summary: The thermo-oxidative characteristics and kinetics of HQ heavy oil were studied using TG-DSC-FTIR-MS technique. The oxidation reactions of HQ heavy oil were divided into low temperature oxidation, fuel deposition, and high temperature combustion stages. The reaction mechanisms were analyzed using FTIR and MS analysis. The obtained data provide important references for understanding crude oil oxidation mechanism and simulating ISC processes accurately.
Article
Energy & Fuels
Tengfei Wang, Liangliang Wang, Xingbang Meng, Yi Chen, Wei Song, Chengdong Yuan
Summary: CO2 miscible flooding is a viable method for enhancing oil recovery, especially in low-permeability reservoirs. This study investigates the sensitivity of key parameters and the dominant EOR mechanism of CO2 miscible flooding through physical simulation experiments and characterization techniques. The results provide insights into the application and optimization of CO2 miscible flooding for different reservoir conditions.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Zhongfu Cheng, Tengfei Wang, Zongxian Bai, Liangliang Wang, Chengdong Yuan, Zhenhui Zhao, Wei Song
Summary: A precise oxidation reaction model is crucial for reliable numerical simulation and prediction of air injection-based enhanced oil recovery (EOR). This study creatively proposes improved numerical models for low temperature oxidation (LTO), middle temperature oxidation (MTO), and high temperature oxidation (HTO), based on a review of the classical oxidation reaction model and the geological characteristics of a low permeability reservoir. The effects of reservoir temperature, permeability, air flow rate, and bottom hole pressure on EOR are determined using a 3D reservoir simulation model. The results show that the LTO and FTO models have higher oil production rates and cumulative oil production compared to N2 flooding, and the FTO model better reflects the production performance during air flooding of low permeability oil reservoir. Artificially preheating the oil reservoir and adjusting air injection rate and pressure can promote thorough contact between oil and air, improving oil recovery while ensuring the safety of field application of air flooding technique.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Liangliang Wang, Tengfei Wang, Zongxian Bai, Chengdong Yuan, Wei Song, Yi Chen, Jiexiang Wang
Summary: This study investigated the oxidation heat effect and combustion activity of light and heavy crude oils, as well as the physical properties of their oxidized oils. The results showed that light oil mainly undergoes distillation and volatilization, while heavy oil experiences both low temperature oxidation and fuel deposition. The oxidation reactions can improve the quality of heavy crude oil, leading to changes in vibration peaks and molecular composition.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
