Article
Energy & Fuels
Ahmed S. Adila, Emad W. Al-Shalabi, Waleed Alameri
Summary: This paper investigates the effect of hybrid surfactant-LSWI/EWI on oil recovery from carbonate cores under harsh conditions through a numerical 2D simulation model. The results show that the hybrid surfactant-EWI can alter wettability and achieve higher oil recovery compared to other techniques. The study emphasizes the importance of surfactant adsorption and concentration for the hybrid surfactant-EWI technique.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
Peyman Koreh, Mostafa Lashkarbolooki, Majid Peyravi, Mohsen Jahanshahi
Summary: This study investigated the performance of different types of surfactants on the surface activity, emulsion size, and surface charge of five oil samples. The effects of various parameters on the interfacial tension of crude oil/surfactant solutions were comprehensively analyzed. The results showed that the properties of the surfactants, crude oil type, and ionic strength influenced the interfacial tension, surface charge, and microemulsion size, but not in a straightforward manner. Among the surfactants considered, the cationic surfactant showed the lowest dependency on the crude oil type, while the non-ionic surfactant showed the highest dependency. CTAB cationic surfactant exhibited the most efficient performance with a microemulsion size of 102 nm and surface charge near the isoelectric point.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
Aref Nafisifar, Abbas Khaksar Manshad, Seyed Reza Shadizadeh
Summary: This research evaluated the EOR potential of a novel nanocomposite and a developed surfactant in the presence of various ions and studied the production enhancement mechanisms using a glass micromodel. It was found that the nanocomposite altered the wettability of an oil-wet carbonate surface to a water-wet one, improving the surfactant's wettability alteration ability. By injecting the desired solutions into the glass micromodel, the optimum concentrations and mechanisms of the nano-chemical EOR method were determined, and the performance of each solution in the porous medium was evaluated.
Article
Energy & Fuels
Bisweswar Ghosh, Alibi Kilybay, Nithin Chacko Thomas, Mohammed Haroun, Md Motiur Rahman, Hadi Belhaj
Summary: This article investigates the synergistic effect and inner mechanisms of dissolved CO2 and engineered water for oil recovery. The study reveals that the hybrid water has higher recovery efficiencies compared to engineered water and carbonated water. The wettability change and the dissolution and deposition of certain ions are identified as significant factors contributing to oil recovery.
Article
Polymer Science
Alexander L. Kwiatkowski, Vyacheslav S. Molchanov, Alexander I. Kuklin, Yuri M. Chesnokov, Olga E. Philippova
Summary: This study investigates the structural transformation of charged hybrid surfactant/polymer micelles induced by salt concentration. The results show that small salt concentration leads to the formation of beads-on-string aggregates on polymer chains, while the addition of KCl transforms these aggregates into rods. The presence of the polymer delays the transition from spheres to rods at higher salt concentrations. The rods formed in the hybrid system are shorter than those in the polymer-free surfactant solution, indicating the stabilization of the semi-spherical endcaps by the embedded polymer. The study also reveals the localization of the polymer within the aggregates.
Article
Chemistry, Physical
Behnaz Sami, Amin Azdarpour, Bizhan Honarvar, Moein Nabipour, Alireza Keshavarz
Summary: The use of green, eco-friendly, efficient, and sustainable surfactants for enhanced oil recovery (EOR) is crucial. A novel natural surfactant extracted from oat was found to be highly efficient and stable for EOR applications. Different salts were tested, and Na2CO3 showed the best compatibility and achieved the most significant reduction in interfacial tension (IFT). Core flooding tests demonstrated that using the natural surfactant with Na2CO3 as a tertiary recovery agent increased the oil recovery factor by 28.89%.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Energy & Fuels
Mariam Shakeel, Aida Samanova, Peyman Pourafshary, Muhammad Rehan Hashmet
Summary: Several studies have demonstrated the synergetic benefits of combining various chemical enhanced oil recovery (CEOR) methods with engineered waterflooding (EWF) in sandstones and carbonate formations. The hybrid EW-CEOR methods showed higher capillary desaturation tendency compared to conventional methods, with the EW-polymer flooding approach significantly reducing residual oil saturation. The results suggest that these hybrid techniques can be effectively implemented in carbonate formations with harsh reservoir conditions.
Article
Energy & Fuels
Davood Zivar, Peyman Pourafshary, Nikoo Moradpour
Summary: The study demonstrates that the low salinity surfactant (LSS) flooding method outperforms low salinity water (LSW) or surfactant flooding (SF) in reducing residual oil saturation (ROS). Experimental data shows a significant difference in ROS between LSS and SF within different ranges of capillary numbers.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2021)
Article
Energy & Fuels
Iman Nowrouzi, Amir H. Mohammadi, Abbas Khaksar Manshad
Summary: This research investigates the use of a natural polymer derived from Plantago ovata seeds as a method of enhanced oil recovery (EOR). The findings demonstrate that P. ovata mucilage (POM) can effectively enhance oil recovery when combined with smart water, showcasing its potential as a natural alternative for EOR processes.
Article
Engineering, Chemical
Fengqi Tan, Jianhua Qin, Xiaoguang Wang, Jianrong Lv, Chunmiao Ma, Wentao Liu, Chaoliang Zhang
Summary: The objective of this study is to investigate the oil displacement mechanism of different surfactant-polymer (SP) binary flooding systems in conglomerate reservoirs and determine the optimal scheme. Microfluidic models were used to reveal the oil-water flow behavior and displacement mechanism. The results showed that the echelon viscosity reducing (EVR) scheme had better oil displacement efficiency compared to the echelon viscosity increasing (EVI) and single constant viscosity (SCV) schemes. The EVR scheme enhanced oil recovery by forming high resistance areas in large-scale pore-throats and adjusting displacement path in small-scale pore-throats. A new model of SP binary flooding suitable for conglomerate reservoirs was established.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Abdolali Mosallanezhad, Azim Kalantariasl
Summary: Ion-engineered water flooding is gaining attention as an efficient EOR technique, especially in carbonate formations. The study developed a single-phase geochemical model to explore rock/fluid interactions, identifying calcite dissolution, dolomite precipitation, and sulfate adsorption as key factors in water displacement. Dissolved calcite and precipitated dolomite were found to be insignificant, highlighting the importance of surface complexation reactions in enhancing oil recovery.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Ruiqin Feng, Miaomiao Chen, Yun Fang, Ye Fan, Yongmei Xia
Summary: Quantitative comparisons of multiple complexes between nonionic water-soluble polymers and anionic surfactants are difficult due to the lack of comparable parameters. Sodium dodecyl sulfate (SDS), sodium dodecylbenzene sulfonate (SDBS), sodium dodecanoate (SD), and potassium lauryl phosphate (PLP) are used as typical anionic surfactants to form six complexes at different pH with polyvinylpyrrolidone (PVP). Various techniques including capillary electrophoresis (CE), tensiometry, conductometry, and isothermal titration calorimetry are employed to investigate these complexes. Five complexation parameters are proposed, and comprehensive comparisons of complexes based on these parameters are achieved. The results show that PVP-SDS complexes exhibit the highest stability and strength, while PVP-PLP complexes are the weakest due to the lowest surface charge density.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Environmental Sciences
Mamoun Fellah, Naouel Hezil, Kamel Guerfi, Ridha Djellabi, Alex Montagne, Alain Iost, Kirill Borodin, Aleksei Obrosov
Summary: The study found that anionic surfactant showed better adsorption on kaolinite compared to cationic surfactant; the adsorption kinetics fit the pseudo-second-order model well; BDDAB adsorption tended to follow Langmuir-Freundlich and Freundlich isotherm models, while SDS adsorption adhered only to the Langmuir-Freundlich model.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Analytical
Laure Wiest, Barbara Giroud, Azziz Assoumani, Francois Lestremau, Emmanuelle Vulliet
Summary: A multi-family analytical strategy for quantifying surfactants in surface waters was developed, optimized, and validated, with the method suitable for monitoring low concentrations of surfactants. Anionic, cationic, and non-ionic surfactants were detected in French river water samples, with median concentrations ranging from 24 ng/L to 4.6 μg/L.
Article
Chemistry, Physical
Zhihu Yan, Yanju Wu, Min Zhao, Li Yu, Shibo Zhang
Summary: Gemini surfactants with different hydrophobic tails and spacer groups were designed and synthesized in this study. The structures were verified by 1H NMR spectrum and mass spectrometry. The research discussed the modulation of micellar thermodynamics and surface activity by the molecular structure, and demonstrated the cost-effective evaluation of surface activity using the molecular polarity index (MPI).
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Energy & Fuels
Leila Karabayanova, Aizada Ganiyeva, Peyman Pourafshary, Muhammad Rehan Hashmet
Summary: The high efficiency of Low Salinity Water (LSW) injection in carbonates, leading to better oil displacement, has been confirmed by various studies. The combination of LSW injection with other Enhanced Oil Recovery (EOR) techniques, such as Low Salinity Hot Water (LSHW) injection, shows promising results for heavy oil carbonate formations. This study experimentally evaluated the performance of LSW and hybrid LSHW injection for heavy oil carbonate cores. The results showed that hybrid LSHW flooding significantly increased oil recovery compared to standalone LSW and EW flooding, due to the active mechanisms of wettability alteration and viscosity reduction.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
Adilet Aliyev, Davood Zivar, Peyman Pourafshary
Summary: This study compares the interwell connectivity values estimated by tracer tests and the capacitance-resistance model (CRM) for synthetic and real fields, demonstrating that CRM can simulate waterflooding processes and accurately estimate production. CRM is recommended as a low-cost and quick tool for approximate estimation of interwell connectivity.
Article
Energy & Fuels
Mariam Shakeel, Aida Samanova, Peyman Pourafshary, Muhammad Rehan Hashmet
Summary: The study aims to optimize the performance of engineered water surfactant flooding (EWSF) by designing a negative salinity gradient. By adjusting the brine salinity and creating a negative salinity gradient, a higher incremental oil recovery can be achieved during the surfactant flooding process.
Review
Energy & Fuels
Marzhan Karimova, Razieh Kashiri, Peyman Pourafshary, Randy Hazlett
Summary: Fluid flow in naturally fractured reservoirs is complex and heterogeneous, and understanding fracture-matrix interactions is crucial. Fluid movement between fractures and matrix occurs through spontaneous imbibition, which can be affected by wettability. Low-salinity water injection is considered as an effective enhanced oil recovery approach for fractured and non-water-wet carbonate rocks. This review summarizes experimental and numerical studies on the imbibition process and highlights the need for further research on wettability alteration and simulation models for co/countercurrent flows in naturally fractured reservoirs.
Article
Chemistry, Physical
Rizwan Muneer, Peyman Pourafshary, Muhammad Rehan Hashmet
Summary: This study presents a new integrated model that incorporates electrostatic, gravitational, and hydrodynamic forces to accurately predict fines migration. Experimental validation demonstrated the accuracy of the model.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Rizwan Muneer, Muhammad Rehan Hashmet, Peyman Pourafshary, Mariam Shakeel
Summary: Nanoparticles have significant importance in modern science due to their unique characteristics and diverse applications. A research proposes the use of machine learning techniques to simulate the zeta potential of silica nanofluids and colloidal systems. The developed artificial neural network (ANN) model achieved an accuracy of over 97% in zeta potential predictions and proved to be more accurate and faster than conventional methods. This research provides a highly accurate and rapid prediction method with broad applications across different fields.
Article
Engineering, Multidisciplinary
Ali Lesan, Reza Shams, Peyman Pourafshary, Abbas Bahrodi, Hosna Rastkerdar
Summary: A pressure maintenance strategy is crucial for reservoir management, especially in single-phase oil reservoirs. Water injection is a common method to prevent pressure decline, and analytical and semi-analytical methods are used to analyze reservoir response and pressure alteration. The Static Capacitance-Resistance Model (SCRM) has been applied to estimate water injection in reservoirs with charging aquifers and to investigate water injection performance in the aquifer zone.
RESULTS IN ENGINEERING
(2023)
Article
Energy & Fuels
Laila Maratbekkyzy, Mariam Shakeel, Peyman Pourafshary, Darya Musharova
Summary: Polymer flooding is an effective method for improving oil recovery from reservoirs, especially those with heterogeneous formations and viscous crude oils. This study focuses on controlling polymer adsorption using silica nanoparticles and alkali, and it demonstrates that both silica nanoparticles and alkali can effectively reduce polymer adsorption. The results show that polymer-nanoparticle flooding can achieve a higher recovery factor compared to standalone polymer flooding, with 5% incremental recovery of the remaining oil.
Article
Energy & Fuels
Razieh Kashiri, Arman Garapov, Peyman Pourafshary
Summary: This study investigated the influence of pH on wettability alteration and oil recovery in carbonate-fractured porous media through imbibition at high temperatures. The test results demonstrated that the ultimate recovery factor remained consistent regardless of the pH levels, but the oil recovery rate varied significantly. The analysis indicated that calcite dissolution and the alkali effect were the primary mechanisms at different pH values.
Article
Energy & Fuels
Sabber Khandoozi, Peyman Pourafshary, Saule Aidarova, Altynay Sharipova
Summary: Foam flooding is a popular method for improving oil recovery in reservoirs with varying heterogeneity levels. Surfactant-assisted foam flooding (SF) is commonly used but has limitations in high-pressure, high-temperature, and high-salinity reservoirs. Researchers have proposed nanoparticles-assisted foam flooding (NAF) as a new approach to overcome these limitations. This study investigated the performance of SF and NAF in controlling gas mobility in reservoirs with different levels of heterogeneity. The results showed that both SF and NAF improved recovery factors, with NAF showing greater potential due to decreased gas mobility and saturation in the top layers.
Article
Chemistry, Physical
Nurzhan Askar, Rizwan Muneer, Peyman Pourafshary
Summary: This study investigates the influence of phase distribution and rock wettability on the critical salt concentration (CSC) for fines migration in sandstone oil reservoirs. The results show that a weak water-wet system results in a higher CSC value compared to a strong water-wet system due to fine particles being contained within a thin water film. These findings provide valuable insights for the design of production and enhanced oil recovery strategies in sandstone reservoirs.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Energy & Fuels
Yaser Ahmadi, Mohsen Mansouri, Peyman Pourafshary
Summary: Developing new ZnO-TiO2/ZSM-5 nanocomposites (ZTZ) and comparing them to standalone ZSM-5 zeolite, this study investigates the improvements in fluid/rock interactions. Various methods including XRD, SEM, EDX, and BET were used to analyze the morphology of the nanocomposites. Results showed that ZTZ exhibited better stability conditions and altered capillary forces more effectively compared to standalone nanoparticles. Oil displacement tests revealed that ZTZ achieved accelerated production and 9% higher recovery compared to ZSM-5 flooding, making it a promising nanocomposite for EOR in sandstone formations.
PETROLEUM SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Fariza Amankeldi, Miras Issakhov, Peyman Pourafshary, Zhanar Ospanova, Maratbek Gabdullin, Reinhard Miller
Summary: This paper explores the potential of aggregates of surfactant and SiO2 nanoparticles as foam stabilizers for practical applications. It examines the effects of different chain lengths and concentrations of the cationic surfactant C(n)TAB on the performance of C(n)TAB-SiO2 nanofluids to understand their ability to stabilize foam. The results demonstrate improved foam stability in the presence of SiO2 nanoparticles, offering insights into foam stabilization and its potential in various industrial applications such as enhanced oil recovery and foam-based separation processes.
COLLOIDS AND INTERFACES
(2023)
