Article
Mathematics, Applied
Fedor Bakharev, Aleksandr Enin, Konstantin Kalinin, Yulia Petrova, Nikita Rastegaev, Sergey Tikhomirov
Summary: The graded viscosity banks technology for polymer flooding is studied with different models of mixing zones behavior. The limiting polymer injection profile is derived rigorously for the transverse flow equilibrium model, the Koval model, and the Todd-Longstaff model based on the viscosity function. The potential increase in polymer quantity compared to the profile with a finite number of slugs is numerically estimated.
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
(2023)
Review
Energy & Fuels
Dmitriy Podoprigora, Roman Byazrov, Julia Sytnik
Summary: This article discusses the predominance of oil and gas as energy sources in most countries, and the use of chemically enhanced oil recovery methods through surfactant solution injections. It also examines the results of tests and field experiments of SP and ASP technologies in various countries.
Review
Energy & Fuels
Afeez Gbadamosi, Shirish Patil, Dhafer Al Shehri, Muhammad Shahzad Kamal, S. M. Shakil Hussain, Emad W. Al-Shalabi, Anas Mohammed Hassan
Summary: This article reviews the combination of low salinity waterflooding (LSWF) and chemical enhanced oil recovery (EOR) for improving oil production in reservoirs. Experimental and modeling results show that the combination of LSWF and chemical EOR is more efficient than individual EOR methods.
Article
Polymer Science
Jingting Huang, Liqiong Chen, Shuxuan Li, Jinghang Guo, Yuanyuan Li
Summary: In this study, the behavior of viscoelastic fluids in displacing oil in dead ends is investigated, and it is found that the elasticity of the fluid is a crucial factor affecting oil displacement efficiency.
Article
Polymer Science
Farhood Navaie, Ehsan Esmaeilnezhad, Hyoung-Jin Choi
Summary: Polymer flooding is an effective process for enhancing oil recovery, improving macroscopic sweep efficiency. By studying the behavior of two polymeric superpushers at different salinities and temperatures, it was found that an increase in temperature and concentration of monovalent ions, as well as the addition of divalent ions, adversely affected the polymers. Flopaam 3630S demonstrated better stability under harsh conditions and showed promising oil recovery rates in carbonate and sandstone core rocks, making it a suitable polymer agent for chemical flooding procedures in high-salinity oil reservoirs.
Article
Engineering, Chemical
Farzad Mokhtari, Siavash Riahi, Behzad Rostami
Summary: Combined low salinity water (LSW) and polymer (LSP) flooding is an effective method for enhancing oil recovery. The injection of LSW can alter the wettability and improve oil recovery in samples without clay particles. Secondary LSW injection can increase the oil recovery by 8% compared to secondary synthetic seawater (SSW) injection in oil-wet samples, and tertiary LSW injection or LSP flooding after secondary SSW injection can achieve even higher oil recovery in oil-wet samples.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Polymer Science
Cuong Mai Bui, Anh-Ngoc Tran Ho, Xuan Bao Nguyen
Summary: This study numerically investigates the flow behavior of polymers in a lid-driven cavity, inspired by the coating process, over a wide range of Oldroyd numbers (0 <= Od <= 50). The results show that the flow characteristics of polymers, such as velocity, viscosity, and vortex distributions, are significantly influenced by viscoplastic behaviors. Additionally, solid-like regions are observed in the flow patterns, and their size increases and tends to merge together as Od increases. The cavity width/aspect ratio and skewed angle also have significant impacts on the vortex structures and the formation of solid-like regions.
Article
Polymer Science
Ekaterina Vachagina, Nikolay Dushin, Elvira Kutuzova, Aidar Kadyirov
Summary: The study proposes a parametric method for analyzing viscoelastic fluid flows without additional assumptions. Experimental results show that compared to the Giesekus model, the eXtended Pom-Pom model can better predict experimental data.
Article
Astronomy & Astrophysics
Ismael Delgado Gaspar, Thomas Buchert, Jan J. Ostrowski
Summary: We have developed a new nonlinear method to model structure formation in general relativity, based on a generalization of the relativistic Lagrangian perturbation schemes controlled by Szekeres and LTB exact solutions. This approach can be seen as the evolution of a deformation field on an inhomogeneous reference model, following locally Friedmann-like equations. In the special case of locally one-dimensional deformations, the model includes the entire Szekeres family of exact solutions. This formulation is similar to the Newtonian and relativistic Zel'dovich approximations, making it highly applicable in contexts where relativistic degrees of freedom are relevant. Numerical simulations have been performed to demonstrate the capabilities and accuracy of the model.
Article
Chemistry, Physical
Zsofia Vargane Arok, Szilard Saringer, Dora Takacs, Coline Bretz, Adam Juhasz, Istvan Szilagyi
Summary: The study investigates the structural and rheological properties of a partially hydrolyzed polyacrylamide (FLOPAAM 3630S) in a wide range of salinity relevant to existing oil reservoir conditions. It is found that macromolecular solutions are present at low polymer concentrations and/or elevated salt levels, while gelation occurs at high FLOPAAM 3630S doses at low salinity. The driving force behind this transformation is determined to be hydrophobic intermolecular interactions. These findings provide new insights for the design of efficient enhanced oil recovery processes in oil reservoirs with varying salt levels.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Energy & Fuels
Shiwei Li, Olivier Braun, Lionel Lauber, Thierry Leblanc, Xin Su, Yujun Feng
Summary: The study found that two newly-developed smart thermoviscosifying polymers performed better in high-temperature high-salinity oil reservoirs compared to the commonly used commercial EOR polymer, PT2500. These findings may offer an alternative for chemical EOR in hostile environments with high temperatures and high salinity.
Article
Energy & Fuels
Yeonkyeong Lee, Wonmo Sung, Jihoon Wang
Summary: Polymers play a crucial role in hybrid enhanced oil recovery (EOR) involving polymer and low-salinity water. The efficiency of the common polymer used in low-salinity polymer flooding (LSPF) can deteriorate in acidic carbonate reservoirs due to the sensitivity of the polymer to brine pH. This study investigated the polymer efficiency in an acidic carbonate reservoir experimentally and found that lowering salinity improves polymer stability, leading to less polymer adsorption, greater wettability alteration, and higher oil recovery.
Article
Chemistry, Multidisciplinary
Xiaoying Liu, Jingchun Wu, Jingang He, Yinglong Xuan, Hao Wu, Sian Chen, Yuan Yuan, Haixiang Zhang, Zhao Yang
Summary: Alkali/surfactant/polymer flooding is commonly used in oilfields to improve recovery, but it leads to damage, scaling, and corrosion. An environmentally friendly method is urgently needed. A new non-alkali ternary drive system with salt instead of alkali has been developed in the Daqing oilfield. The alkali-free ternary emulsion system shows synergistic effects and good oil-repelling performance. Multistage plug injection can improve the recovery rate.
Article
Chemistry, Physical
Rohit Kumar Saw, Anshuman Singh, Neetish Kumar Maurya, Ajay Mandal
Summary: Low salinity water flooding is cost-effective and environmentally friendly, and the addition of nanoparticles and polymers can significantly increase oil recovery. The viscosity of complex chemical slugs can be increased by adding nanoparticles to polymer solutions. Low salinity water requires a lower concentration of polymer to reach the target viscosity compared to high saline formation water. The addition of nanoparticles reduces interfacial tension and contact angle, leading to higher oil recovery in low salinity water. Injection of low salinity water-based complex fluid results in incremental recovery of OOIP compared to low salinity water and conventional formation water flooding.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Weiyao Zhu, Hua Li, Zhen Chen, Zhiyong Song
Summary: It has been confirmed that high salinity significantly reduces the oil recovery from polymer flooding due to the loss of polymer viscoelasticity. This study utilized micro-PIV technique and rheological experiments to investigate the pore-scale flow field of polyacrylamide (HPAM) under different salinities. The results showed that high salinity decreased the storage modulus and loss modulus of HPAM, leading to lower sweep efficiency and reduced oil recovery.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Multidisciplinary Sciences
Rouhi Farajzadeh, Siavash Kahrobaei, Ali Akbari Eftekhari, Rifaat A. Mjeni, Diederik Boersma, Johannes Bruining
Summary: A new method is proposed to evaluate the energy efficiency and CO2 intensity of polymer and surfactant enhanced oil recovery techniques. The study shows that injecting polymer can significantly reduce the CO2 intensity of waterflood projects, providing an effective solution to reducing carbon emissions in oil production.
SCIENTIFIC REPORTS
(2021)
Review
Energy & Fuels
Seyed Hasan Hajiabadi, Pavel Bedrikovetsky, Sara Borazjani, Hassan Mahani
Summary: Deep saline aquifers are favorable geological sites for carbon geosequestration, but the focus on CO2 injectivity has been lacking in previous research. The present study aims to identify gaps and challenges in this area, such as controversies in analytical models and neglect of certain factors like thermo-poro-elastic effects. Regular wellbore injectivity monitoring and surveillance are deemed necessary for successful CO2 geosequestration in saline aquifers.
Article
Energy & Fuels
Mohammadreza Amirmoshiri, Xinglin Wang, Chutian Bai, Raj Deo Tewari, Sheena Xina Xie, Ridhwan Zhafri Kamarul Bahrim, Philip M. Singer, Rouhi Farajzadeh, Sibani Lisa Biswal, George J. Hirasaki
Summary: The experimental study demonstrates the significant influence of surface wettability on transient foam generation in the presence of bulk oil saturation. The final steady-state foam strength becomes comparable to the water-wet and oil-free case once the residual oil saturation is adequately reduced.
Article
Water Resources
Leila Hashemi, Wuis Glerum, Rouhi Farajzadeh, Hadi Hajibeygi
Summary: Accurate quantification of hydrogen transport characteristics in subsurface porous formations is crucial for underground hydrogen storage. This study characterizes the contact angles of hydrogen in contact with brine and sandstones, providing important data for research in this field.
ADVANCES IN WATER RESOURCES
(2021)
Article
Engineering, Civil
S. Borazjani, N. Hemmati, A. Behr, L. Genolet, H. Mahani, A. Zeinijahromi, P. Bedrikovetsky
Summary: A novel method for simultaneous determination of relative phase permeability and capillary pressure from coreflood Steady-State Test has been proposed in this study, utilizing both steady-state and transient data. The stability of the algorithm has been checked and validated using laboratory data from gas-water systems.
JOURNAL OF HYDROLOGY
(2021)
Article
Energy & Fuels
Shuyan Yang, Nassim Hemmati, Thomas Russell, Abbas Zeinijahromi, Sara Borazjani, Aron Behr, Luis Genolet, Pavel Bedrikovetsky
Summary: This study focuses on analyzing the three-dimensional effects in short cores during steady-state tests for relative permeability and capillary pressure. It was found that although 3D flow effects influenced the measurement data, the agreement between K-r and P-c obtained from 3D and 1D models was close, with the Spiral distributor showing lower 3D flow effects and more accurate determination of relative permeability and capillary pressure from SSTT tests.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
S. Borazjani, N. Hemmati, A. Behr, L. Genolet, H. Mahani, A. Zeinijahromi, P. Bedrikovetsky
Summary: This study aims to determine relative permeability and capillary pressure from steady-state coreflood tests, using an inverse algorithm based on transient data and type curves. Extensive sensitivity analysis confirms the stability of the obtained results, and validation with measured saturation profiles supports the effectiveness of the method.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Water Resources
Leila Hashemi, Maartje Boon, Wuis Glerum, Rouhi Farajzadeh, Hadi Hajibeygi
Summary: This study characterizes the wettability of hydrogen and methane, as well as their mixtures, in subsurface reservoirs. The findings show that the wettability behavior of hydrogen and methane is similar, and their mixtures exhibit similar behavior to pure gas systems. The study also validates that under similar conditions, the contact angles of hydrogen and methane bubbles and their mixtures are comparable. This has implications for large-scale subsurface storage systems where buoyancy and capillary forces are the main factors affecting wettability.
ADVANCES IN WATER RESOURCES
(2022)
Article
Water Resources
Willemijn van Rooijen, Leila Hashemi, Maartje Boon, Rouhi Farajzadeh, Hadi Hajibeygi
Summary: This paper reports experimental measurements of advancing and receding contact angles for H-2/water system in microfluidic chip with different channel widths. Results show that contact angles decrease with increasing channel widths and N-2/water and CO2/water systems exhibit similar characteristics as H-2/water system.
ADVANCES IN WATER RESOURCES
(2022)
Article
Energy & Fuels
M. Battashi, R. Farajzadeh, A. Bimani, M. Al Abri, R. Mjeni, V. Karpan, A. Fadili, J. van Wunnik
Summary: This paper introduces new mechanisms for oil recovery in heavy oil reservoirs with strong bottom aquifers using polymer injection. The cyclic injection strategy and intentional well shut-in improve polymer utilization and reduce polymer loss, leading to a favorable economic outcome.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Chemical
Sian A. Jones, Siavash Kahrobaei, Niels van Wageningen, Rouhi Farajzadeh
Summary: The behavior of CO2 foam flowing through high-permeability Indiana Limestone has been studied, and the relationship between foam behavior and surfactant concentration has been investigated. A comparison between the foaming behaviors of CO2 and N-2 was also made.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Rouhi Farajzadeh, Bartholomeus Petrus Lomans, Hadi Hajibeygi, Johannes Bruining
Summary: This paper presents an assessment of the life-cycle exergetic efficiency and CO2 footprint of the underground biomethanation process. It is found that the underground biomethanation process does not outperform the direct storage and utilization of green H-2. Moreover, the energy produced from the underground biomethanation process has the largest CO2 intensity among the studied options.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
R. Farajzadeh, G. Glasbergen, V. Karpan, R. Mjeni, D. M. Boersma, A. A. Eftekhari, A. Casquera Garcia, J. Bruining
Summary: This paper describes how improved oil recovery techniques can reduce the CO2 intensity of oil production by efficient use of injectants. The study shows that the CO2 emissions associated with the injection of chemicals can be significantly reduced by reducing the water cut and improving the utilization factor. Implementing enhanced oil recovery methods earlier can also extend the lifetime of mature fields. CO2 enhanced oil recovery using captured CO2 from gas power plants can greatly reduce overall CO2 emissions of oil.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Energy & Fuels
Kenta Yamada, Bruno Ramon Batista Fernandes, Atharva Kalamkar, Jonghyeon Jeon, Mojdeh Delshad, Rouhi Farajzadeh, Kamy Sepehrnoori
Summary: This study proposes a novel approach using machine learning for assessing the risk of CO2 hydrate formation during injection into depleted gas reservoirs. The developed machine learning models show efficient performance in predicting hydrate-forming events.
Article
Engineering, Chemical
Sian A. . Jones, Siavash Kahrobaei, Niels van Wageningen, Rouhi Farajzadeh
Summary: An understanding of how CO2 foam flows through a reservoir rock is beneficial for subsurface applications such as enhanced oil recovery and CO2 storage. This study investigates the behavior of supercritical CO2 foams flowing through a high-permeability Indiana Limestone by conducting core flood experiments. The foaming behavior and concentration response of two surfactants, a betaine and a sultaine, were studied and compared with N2. The results show that CO2 exhibits better foaming behavior at high foam qualities, while N2 generates stronger foam at low foam qualities.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
