Article
Energy & Fuels
Meng Du, Weifeng Lyu, Zhengming Yang, Ninghong Jia, Jigang Zhang, Zhongkun Niu, Wen Li, Xinliang Chen, Lanlan Yao, Yilin Chang, Sirui Jiang, Qianhui Huang
Summary: An online physical simulation method using CT scanning and NMR was established to study the mechanism of enhanced shale oil recovery by air injection. The study analyzed the effects of air oxygen content, permeability, gas injection pressure, and fractures on the air flooding effect and shale oil production. The results show that injecting air into depleted shale reservoirs can greatly improve shale oil recovery, but the oil displacement efficiency and production degree of different pore throats vary with injection timing.
PETROLEUM EXPLORATION AND DEVELOPMENT
(2023)
Article
Chemistry, Applied
Kathryn E. Anderssen, Mathias Kranz, Shaheen Syed, Svein Kristian Stormo
Summary: This study investigates the use of diffusion tensor imaging (DTI) magnetic resonance imaging (MRI) as a quantitative method to describe the structure of muscle tissue in meat and seafood. The results show that DTI can effectively distinguish between different sample qualities and detect changes caused by freezing and thawing damage.
Article
Physics, Multidisciplinary
Daniel R. Haeupl, Daniel Weller, Robert Loew, Nicolas Y. Joly
Summary: This new type of compact and all-glass based vapour cell integrated with hollow-core photonic crystal fibers allows for faster and more uniform heating, leading to quicker filling of fibers. The all-glass design provides optical access along the fiber for live monitoring of rubidium atoms diffusion. The atomic density can be numerically retrieved using a five-level system of Bloch equations.
NEW JOURNAL OF PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Manuel I. Velasco, Agustin Iborra, Juan M. Giussi, Omar Azzaroni, Rodolfo H. Acosta
Summary: This study explores the use of a benchtop low-field single-sided NMR to determine the species distribution in complex aqueous-organic systems known as Winsor III. The results show that the salinity of the aqueous phase affects the species distribution in the bicontinuous system, and the methodology used provides information at both macroscopic and microscopic levels. Additionally, the study demonstrates the ability of single-sided NMR to determine the phases' dimensions and the species distribution in a polymer-based bicontinuous system.
Article
Engineering, Environmental
Runxi Wang, Sheng Bi, Zhaoli Guo, Guang Feng
Summary: In this study, molecular dynamics simulations were used to investigate the kinetics of alkane replacement using CO2 in micropores. It was found that the microstructure and diffusivity of n-decane in micropores varied with pore size. A diffusion model was proposed to analyze the replacement mechanisms under different pore sizes, highlighting the importance of micropores in CO2 enhanced oil recovery.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Runxi Wang, Sheng Bi, Zhaoli Guo, Guang Feng
Summary: The study revealed that the microstructures of n-decane in micropores undergo significant changes with pore size, leading to oscillations in density and diffusivity. By proposing a diffusion model and analyzing different replacement mechanisms under varying pore sizes, the importance of micropores in CO2 enhanced oil recovery was demonstrated.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
A. M. Panich, A. E. Aleksenskii, E. B. Yudina, A. Ya Vul
Summary: We report a novel approach to determine the spatially resolved nuclear spin-lattice relaxation times and NMR line widths in nanomaterials. We applied this approach to detonation nanodiamonds with manganese ions grafted onto their surface and observed the acceleration of nuclear spin-lattice relaxation and broadening of the resonance line. By using spin dephasing experiments, we were able to determine the contribution of paramagnetic Mn2+ ions to the relaxation time and line width of carbon spins at different depths from the diamond surface. Developed specifically for nanodiamonds, this approach can be applied to study distribution of relaxation rates and line broadening, and map magnetic interactions inside various nanoparticles, making it valuable in nanotechnologies.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Munawar Khalil, Alwy Fahmi, Noverra Mardhatillah Nizardo, Zulhelmi Amir, Badrul Mohamed Jan
Summary: The study successfully investigated the application of thermosensitive core-shell Fe3O4@PNIPAM nanogels in enhanced oil recovery. The nanogels exhibited high viscosity and low nanofluid mobility ratio at high temperatures, leading to efficient displacement front during EOR. Additional oil recovery of about 25.75% was achieved when the nanofluid was injected at a temperature of 45 degrees C, although a further increase in temperature could result in reduced oil recovery due to nanogel precipitation.
Review
Energy & Fuels
Muhend Milad, Radzuan Junin, Akhmal Sidek, Abdulmohsin Imqam, Mohamed Tarhuni
Summary: In recent times, there has been a significant increase in global energy demand, leading to the depletion of conventional oil reservoirs. To meet this growing energy demand, there has been a focus on seeking alternative oil resources, particularly unconventional oil formations like shale oil reservoirs. While shale oil reservoirs have been successful, challenges remain such as rapidly declining oil flow rates and oil retention in pores.
Article
Astronomy & Astrophysics
Kiyoaki Christopher Omori, Tsutomu T. Takeuchi
Summary: By investigating the spatially resolved kinematics and stellar population properties of galaxies with a counter-rotating stellar core, researchers found distinct differences in kinematic and stellar population properties. These differences depend on the classification of the galaxies using spatially resolved emission line diagnostics.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Thermodynamics
Yujie Li, Cheng Zhai, Jizhao Xu, Yong Sun, Xu Yu
Summary: This study investigates the feasibility of enhanced coalbed methane (CBM) recovery through steam injection. Results show that steam injection can increase the internal temperature of coal samples and induce thermal cracking, facilitating gas desorption and migration. Furthermore, steam preferentially condenses in coal micropores and has the potential to displace methane. The study suggests that steam injection may not cause water blocking effects. These findings provide valuable insights for the field application of steam injection to enhance CBM production.
Article
Mechanics
Cheng Li, Ruichen He, Zilong He, S. Santosh Kumar, Steven A. Fredericks, Christopher J. Hogan, Jiarong Hong
Summary: The use of oil-in-water emulsion in spray applications suppresses the formation of small droplets while increasing droplet velocity, enhancing spray penetration in agricultural settings. Experimental results indicate that the application of oil-in-water emulsion leads to earlier breakup of spray sheets and larger resulting droplet sizes.
INTERNATIONAL JOURNAL OF MULTIPHASE FLOW
(2021)
Article
Engineering, Chemical
Yishan Liu, Xiaohu Dong, Zhangxin Chen, Yanan Hou, Qilan Luo, Shanshan Chen
Summary: The study combined core displacement tests and digital cores to investigate the pore-scale movability of tight oil, finding that remaining tight oil can be classified into block-like, flat-like, and film-like categories. Different displacement methods, such as water flooding, CH4 flooding, and CO2 flooding, were used to unlock these types of oil, with CO2 flooding proving more effective at unlocking film-like oil compared to CH4 flooding.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Energy & Fuels
Lang Dongjiang, Lun Zengmin, Lyu Chengyuan, Wang Haitao, Zhao Qingmin, Sheng Hang
Summary: Nuclear magnetic resonance experiments were used to study the factors affecting CO2 flooding of shale oil reservoir. Time, pressure, and temperature were found to have varying effects on the recovery of CO2 flooding in shale oil reservoir. The degree of fracture development was also found to impact the recovery of CO2 flooding in shale oil reservoir.
PETROLEUM EXPLORATION AND DEVELOPMENT
(2021)
Article
Engineering, Chemical
Fei Xu, Hanqiao Jiang, Ming Liu, Shuai Jiang, Yong Wang, Junjian Li
Summary: This study conducted porosity and permeability tests on Gulong shale cores and analyzed the fluid occurrence space characteristics and imbibition oil recovery. It was found that the permeability of the shale cores was related to the development of fractures. The T-1-T-2 maps of the shale cores showed that the shale mainly contained heavy oil, light oil, and clay-bound water, distributed in different regions. Saltwater mainly entered the minuscule inorganic pores and squeezed the larger-sized inorganic pores containing light oil, achieving enhanced oil recovery.
Article
Geochemistry & Geophysics
Zhen Yin, Milana Ayzenberg, Colin MacBeth, Tao Feng, Romain Chassagne
INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION
(2015)
Article
Computer Science, Interdisciplinary Applications
Romain Chassagne, Dennis Obidegwu, Julien Dambrine, Colin MacBeth
COMPUTERS & GEOSCIENCES
(2016)
Review
Energy & Fuels
Zhen Yin, Colin MacBeth, Romain Chassagne, Oscar Vazquez
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2016)
Article
Energy & Fuels
Dennis Obidegwu, Romain Chassagne, Colin MacBeth
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2017)
Article
Water Resources
R. Hussain, J. Mitchell, P. S. Hammond, A. J. Sederman, M. L. Johns
ADVANCES IN WATER RESOURCES
(2013)
Article
Chemistry, Multidisciplinary
Carmine D'Agostino, Tatyana Kotionova, Jonathan Mitchell, Peter J. Miedziak, David W. Knight, Stuart H. Taylor, Graham J. Hutchings, Lynn F. Gladden, Mick D. Mantle
CHEMISTRY-A EUROPEAN JOURNAL
(2013)
Article
Energy & Fuels
J. Mitchell, J. Staniland, R. Chassagne, K. Mogensen, S. Frank, E. J. Fordham
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2013)
Review
Chemistry, Physical
J. Mitchell, L. F. Gladden, T. C. Chandrasekera, E. J. Fordham
PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY
(2014)
Article
Environmental Sciences
E. Essouayed, E. Verardo, A. Pryet, R. L. Chassagne, O. Atteia
JOURNAL OF CONTAMINANT HYDROLOGY
(2020)
Article
Computer Science, Interdisciplinary Applications
Romain Chassagne, Julien Dambrine, Niki Obiwulu
COMPUTERS & GEOSCIENCES
(2020)
Article
Geochemistry & Geophysics
Antony Hallam, Romain Chassagne, Claus Aranha, Yifan He
Summary: In this study, alternative measures of the misfit borrowed from image processing and meteorological history matching were tested for ASHM optimization, showing that two proposed alternatives to MSE were more stable and provided superior results.
JOURNAL OF GEOPHYSICS AND ENGINEERING
(2022)
Article
Computer Science, Interdisciplinary Applications
Antony Hallam, Debajoy Mukherjee, Romain Chassagne
Summary: Well logging is crucial for studies involving subsurface geology and depositional conditions, but incomplete measurements and missing data intervals are common. Machine learning offers a more generic and simpler approach for imputing missing data, and its application in multi-log imputation is explored in this study.
APPLIED COMPUTING AND GEOSCIENCES
(2022)
Article
Operations Research & Management Science
Yifan He, Claus Aranha, Antony Hallam, Romain Chassagne
Summary: Seismic History Matching (SHM) is a crucial problem in the field of geosciences, often solved using Multi-Objective Evolutionary Algorithms (MOEAs). However, SHM requires solutions that perform well on all objectives, rather than a trade-off. In this study, we propose a Differential Evolution algorithm using Lexicase Selection that pushes solutions to excel on all objectives. Comparative experiments with two MOEAs show that this method generates solutions closer to the ground truth.
OPERATIONS RESEARCH PERSPECTIVES
(2022)
Article
Operations Research & Management Science
Romain Chassagne, Claus Aranha
OPERATIONS RESEARCH PERSPECTIVES
(2020)
Proceedings Paper
Computer Science, Artificial Intelligence
Claus Aranha, Ryoji Tanabe, Romain Chassagne, Alex Fukunaga
2015 IEEE CONGRESS ON EVOLUTIONARY COMPUTATION (CEC)
(2015)