Article
Engineering, Multidisciplinary
Pooja Jangir, Anushka Herale, Ratan Mohan, Paresh Chokshi
Summary: This study investigates the effects of incorporating polymer solutions on the viscous fingering patterns in flow displacement. The addition of polymers alters the viscosity contrast between fluids, leading to changes in fingering patterns. Furthermore, the shear-thinning behavior of the polymer promotes the longitudinal growth of fingers, while fluid elasticity inhibits finger growth and improves flow displacement efficiency.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2022)
Article
Mechanics
B. N. Nwani, C. Merhaben, I. D. Gates, A. M. Benneker
Summary: This study investigates the electrokinetic control of miscible viscous fingering (VF) using an externally applied electric field. Numerical simulations show that VF can be fully suppressed if an electric field with an absolute value above the critical field strength is applied. The direction of the electric field depends on the configuration, and the quantitative analysis supports the qualitative findings. The results have implications for applications such as oil recovery, pollution zone spreading, liquid chromatography, and soil remediation.
Article
Energy & Fuels
Lei Li, Xiaomei Zhou, Yuliang Su, Pufu Xiao, Zheng Chen, Jianyang Zheng
Summary: This study investigates the performance of supercritical CO2 miscible flooding in heterogeneous reservoirs. The CO2 gas channeling experiments were conducted on short cores with different permeability ratios and long cores with different fracture conductivities. The findings show that reservoir heterogeneity plays a crucial role in enhancing oil recovery. The permeability ratio and fracture conductivity have significant impacts on oil recovery and gas channeling. Higher permeability cores exhibit higher displacement efficiency but experience earlier gas breakthrough. In the presence of fractures, CO2 breakthrough occurs rapidly and as fracture conductivity increases, gas breakthrough time becomes shorter and gas channeling becomes more severe.
Article
Thermodynamics
Yanyong Wang, Xiaoguang Wang, Huyang Xu, Yanqing Wang, Chuanyin Jiang
Summary: This study numerically explores the mechanisms of geological factors in controlling the heat mining process by CO2 injection. The findings show that heat extraction using CO2 as working fluid can achieve a high mining rate, but the CO2 plume exhibits severe segregation effect. Increasing the horizontal correlation length and mean permeability can effectively promote the mining rate, while increasing permeability heterogeneity and anisotropy can cause a reversed trend of mining rate variation.
Article
Engineering, Chemical
Pooja Jangir, Ratan Mohan, Paresh Chokshi
Summary: A linear stability analysis was conducted to examine viscous fingering in a displacement process involving two non-Newtonian fluids. The study investigated the role of fluid rheology in the growth rate of fingering, focusing on the effects of yield stress and shear-thinning behavior. The research found that the nature of the fluid rheology and viscosity modification play important roles in the early growth of fingering.
TRANSPORT IN POROUS MEDIA
(2022)
Article
Mathematics, Applied
F. Bakharev, A. Enin, A. Groman, A. Kalyuzhnyuk, S. Matveenko, Yu. Petrova, I. Starkov, S. Tikhomirov
Summary: This paper investigates the linear growth of the mixing zone during polymer slug injection into a water reservoir in a pessimistic scenario. The velocities of key parameters characterizing the miscible displacement are studied numerically and analytically. Recommendations on specific analytical methods for estimating the growth rate of the mixing zone depending on the characteristics of the polymer are presented based on the comparison pattern between numerically obtained velocities and theoretical estimates.
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
(2022)
Article
Energy & Fuels
Eric Sonny Mathew, Moussa Tembely, Waleed AlAmeri, Emad W. Al-Shalabi, Abdul Ravoof Shaik
Summary: In this study, machine learning was used to quickly and accurately determine the critical parameters for multiphase flow in reservoirs through a large-scale training and testing process, optimizing the model to accurately predict relative permeability and capillary pressure curves. The ML model for interpreting coreflooding experiments is more flexible than some commercial codes, providing multiple options for determining the best solution.
SPE RESERVOIR EVALUATION & ENGINEERING
(2021)
Article
Mechanics
Timan Lei, Kai H. Luo
Summary: The study reveals that dissolution reaction can delay the onset of fingering and affect fingering propagation and intensity, demonstrating the complex interplay between dissolution, diffusion, and viscosity contrast during miscible displacement in porous media. Increasing Peclet number and viscosity ratio destabilize fingering, while increasing Damkohler number can first suppress and then intensify fingering. The findings provide insights into displacement stability during geological CO2 sequestration, aiding in evaluating storage efficiency and safety.
Article
Energy & Fuels
Wenzhe Yang, Yunsheng Chang, Jindian Cheng, Zhiguo Wang, Xingbo Li, Pengfei Lv, Baoliang Zhang, Lei Wang, Bin Liu, Yongchen Song
Summary: This study investigates the permeability and heterogeneity in CO2-EOR processes using magnetic resonance imaging, revealing that heterogeneity has a significant impact on parameters like mixing zone length and velocity during miscible displacement, indicating that heterogeneity is more important than permeability in determining flow characteristics. The Lattice-Boltzmann method is also employed for local pore-space simulation, showing stable fronts in local space and suggesting that more attention should be focused on heterogeneity rather than permeability for future research.
Article
Mechanics
Qingwang Yuan, Bowen Ling, Saman A. Aryana
Summary: This article investigates the influence of non-negligible dead-end pores and a limited mass transfer rate between two pore types on fingering dynamics. A new stabilizing mechanism is identified, and a scaling analysis and analysis of interfacial lengths accurately predict the boundaries of the flow regimes.
Article
Environmental Sciences
Qingwang Yuan, Zhiwei Ma, Jinjie Wang, Xiang Zhou
Summary: Improving the understanding of mechanisms involved in low miscible displacement efficiency is crucial for various subsurface applications. The study found that viscous fingering instabilities significantly impact the flow dynamics in a fixed reference frame, leading to unstable distribution of NAPLs in dead-end pores and affecting the cleanup efficiency.
WATER RESOURCES RESEARCH
(2021)
Article
Thermodynamics
Kunpeng Xue, Yu Liu, Tao Yu, Lei Yang, Jiafei Zhao, Yongchen Song
Summary: An accurate description of reservoir characteristics is crucial for the precise prediction of gas production from natural gas hydrate deposits. Previous studies assumed homogeneous permeability in large-scale NGH production cases, but this work established a multi-layered heterogeneous-permeability reservoir model and analyzed gas production behavior using the TOUGH + HY-DRATE simulator. It was found that scatter distribution of hydrate and free gas occurs in this reservoir model, and reservoirs with heterogeneous permeability perform better than homogeneous ones.
Article
Green & Sustainable Science & Technology
E. Anto-Darkwah, S. M. Benson, A. Rabinovich
Summary: The study introduces an improved method for estimating sub-core properties of reservoir rocks, which is shown to be more efficient and less prone to numerical errors. Validation of the method is demonstrated in a CO2-water drainage coreflood experiment, with significantly faster computation speed compared to traditional methods.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)
Article
Mechanics
Yuka F. Deki, Yuichiro Nagatsu, Manoranjan Mishra, Ryuta X. Suzuki
Summary: Viscous fingering or Saffman-Taylor instability occurs when a more mobile fluid displaces a less mobile one in porous media, creating finger-like patterns. The effective interfacial tension (EIT) acts like capillary force at the miscible interface. Numerical studies have shown that fingers are wider with EIT. However, a recent experiment on a miscible system with EIT observed finger widening with increasing flow rate, which is not observed in other systems. This study numerically investigates the effect of injection flow rates on miscible viscous fingering with and without EIT, and explains the mechanism using a one-dimensional analysis of concentration and EIT profiles.
JOURNAL OF FLUID MECHANICS
(2023)
Article
Energy & Fuels
Liang Xue, Hu Han, Mengnan Zhang, Honghai Fan
Summary: This study addresses the issue of displacement efficiency in horizontal wells through the reestablishment of a cement model and proposes measures to improve efficiency. The accuracy and practicality of the method were confirmed through comparison with previous research, and the effects of isolator parameters on displacement efficiency were investigated.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Review
Energy & Fuels
Brigitte Doligez, Mickaele Le Ravalec, Sarah Bouquet, Mathilde Adelinet
BULLETIN OF CANADIAN PETROLEUM GEOLOGY
(2015)
Article
Energy & Fuels
M. Adelinet, C. Dorbath, M. Calo, L. Dorbath, M. Le Ravalec
OIL & GAS SCIENCE AND TECHNOLOGY-REVUE D IFP ENERGIES NOUVELLES
(2016)
Article
Geochemistry & Geophysics
Mathilde Adelinet, Mickaele Le Ravalec
Interpretation-A Journal of Subsurface Characterization
(2015)
Article
Computer Science, Interdisciplinary Applications
Arthur Thenon, Veronique Gervais, Mickaele Le Ravalec
COMPUTATIONAL GEOSCIENCES
(2016)
Article
Energy & Fuels
Christophe Preux, Mickaele Le Ravalec, Guillaume Enchery
OIL & GAS SCIENCE AND TECHNOLOGY-REVUE D IFP ENERGIES NOUVELLES
(2016)
Article
Engineering, Environmental
Caroline Gardet, Mickaele Le Ravalec, Erwan Gloaguen
STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
(2016)
Article
Geochemistry & Geophysics
Martin Blouin, Mickaele Le Ravalec, Erwan Gloaguen, Mathilde Adelinet
Article
Computer Science, Interdisciplinary Applications
Leila Heidari, Veronique Gervais, Mickaele Le Ravalec, Hans Wackernagel
COMPUTERS & GEOSCIENCES
(2013)
Article
Engineering, Civil
Mickaele Le Ravalec, Emmanuel Mouche
JOURNAL OF HYDROLOGY
(2012)
Article
Geosciences, Multidisciplinary
Caroline Gardet, Mickaele Le Ravalec, Erwan Gloaguen
MATHEMATICAL GEOSCIENCES
(2014)
Article
Geosciences, Multidisciplinary
Leandro Passos de Figueiredo, Dario Grana, Mickaele Le Ravalec
MATHEMATICAL GEOSCIENCES
(2020)
Article
Computer Science, Interdisciplinary Applications
A. Thenon, V. Gervais, M. Le Ravalec
Summary: Numerical models of geological reservoirs are crucial for production forecasting and development planning. Machine learning techniques, such as the multi-fidelity approach rooted in cokriging, can provide accurate estimations of fluid flow simulator outputs. Identifying models constrained to production data can be challenging and time-consuming, but these approaches offer potential benefits in terms of simulation time required to train reliable predictors.
COMPUTATIONAL GEOSCIENCES
(2022)
Article
Ecology
Mickaele Le Ravalec, Alexandre Rambaud, Veronique Blum
Summary: This research examines corporate climate performance and communication requirements using Luhmann's system theory. The analysis suggests that the economic system is unable to fully capture environmental messages and proposes the establishment of a new sustainability-focused system. The suggestion is to consider corporate climate performance as an indicator of how far a firm is from a targeted trajectory for keeping global warming below a threshold.
ECOLOGICAL ECONOMICS
(2022)
Article
Energy & Fuels
Maria Fernanda Leon Carrera, Mickael Barbier, Mickaele Le Ravalec
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2018)
Article
Computer Science, Interdisciplinary Applications
Veronique Gervais, Mickaele Le Ravalec
COMPUTATIONAL GEOSCIENCES
(2018)