Article
Construction & Building Technology
Qing Xiang Xiong, Liang-yu Tong, Zhidong Zhang, Caijun Shi, Qing-feng Liu
Summary: This research develops analytical models for describing the water sorption isotherm and permeability properties of cementitious mortars. The models incorporate a probabilistic method for pore size distribution and transformation models for pore radius. The influence of ions on water sorption and the evolution of pore structure are also investigated. The results demonstrate the significance of pore size distribution and relative humidity in determining the permeability of mortars.
CEMENT & CONCRETE COMPOSITES
(2023)
Review
Engineering, Geological
Xiaoyan Zhang, Qi Li, Mathias Simon, Guodong Zheng, Yongsheng Tan
Summary: Geological storage of acid gas plays a significant role in reducing atmospheric CO2 and H2S emissions and addressing public concerns. The impact of H2S content on the gas density, viscosity, interfacial properties, and wettability of acid gas/brine/rock systems is important in predicting the injection and migration of acid gas. Further experimental measurements are needed to understand the relationship between capillary number and relative permeability in acid gas/brine/rock systems.
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
(2022)
Article
Energy & Fuels
Abouzar Mirzaei-Paiaman, Mohsen Faramarzi-Palangar, Sofiane Djezzar, Shahin Kord
Summary: This paper introduces a new wettability index and tests other indices, finding that all indices predict the oil-wet character of tested rocks. There are correlations between different indices and variations in wettability indices with reservoir depth.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Petroleum
Zuhao Kou, Heng Wang, Vladimir Alvarado, Charles Nye, Davin A. Bagdonas, J. Fred McLaughlin, Scott Austin Quillinan
Summary: This research investigates the effects of fluid-rock reactions on changes in the porosity, permeability, and multiphase flow properties of deep saline aquifers for CO2 storage. Carbonic acid flooding experiments were performed on core samples from a potential CO2 storage site in northwest Wyoming. The results show that the interaction between carbonic acid and rocks leads to an increase in porosity and permeability, which has implications for accurate prediction and simulation of CO2 injection into deep saline aquifers.
Article
Water Resources
Ruichang Guo, Laura Dalton, Dustin Crandall, James McClure, Hongsheng Wang, Zhe Li, Cheng Chen
Summary: This study investigates the impact of pore-scale wettability heterogeneity on immiscible two-fluid displacement in porous media. The results show that heterogeneous wettability causes local redistribution of CO2 and water and has a more significant effect on relative permeability curves than on capillary pressure-water saturation curves.
ADVANCES IN WATER RESOURCES
(2022)
Article
Energy & Fuels
Sami Yahyaoui, Rezki Akkal, Mohammed Khodja, Toudert Ahmed Zaid
Summary: The water-oil relative permeability behavior of different plugs from the Hassi Messaoud reservoir in south Algeria has been studied to understand the fundamental processes of two-phase flow within rock samples. Factors such as wettability, overburden pressure, and rock characteristics have been assessed based on the relative permeability curves.
Article
Energy & Fuels
Abay Molla Kassa, Sarah E. Gasda, Kundan Kumar, Florin A. Radu
Summary: This study incorporates time-dependent wettability change into the relative permeability-saturation relation through modifying the existing relative permeability function, showing the importance of accurately predicting relative permeability in a dynamically altering porous medium.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Timur Ildarovich Yunusov, Lyutsia Faritovna Davletshina, Dmitriy Nikolaevich Klimov, Lyubov Abdulaevna Magadova, Mikhail Alexandrovich Silin
Summary: The mutual influence of surfactants and chelating agents on wettability alteration of hydrophobic carbonate rock during high-temperature well stimulation was explored. Anionic surfactants mixed with the chelating agent showed effective wettability alteration, while cationic and amphoteric surfactants exhibited better results. The dissolution capacity of the chelating agent was strongly dependent on wettability alteration, and there were no negative effects on the wettability of aged reservoir rock.
APPLIED SCIENCES-BASEL
(2023)
Article
Energy & Fuels
Andrew Fager, Guangyuan Sun, Rui Xu, Bernd Crouse, Gary Jerauld, Nathan Lane, Qiang Sheng
Summary: The accuracy of relative permeability and mobility data plays a crucial role in predicting production uncertainties in reservoir models. It is important to consider displacement test details such as capillary number, and perform tests representative of reservoir conditions. The study shows that capillary number has a significant impact on total mobility, exhibiting a plateau behavior at lower capillary numbers and increasing monotonically above a critical threshold.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
Hossein Fazeli, Veerle Vandeginste, Arash Rabbani, Masoud Babaei, Bagus Muljadi
Summary: This study investigates the impact of the pore-scale distribution of calcite on the structural alteration of shales using a pore-scale reactive transport model. The results indicate that calcite dissolution leads to permeability enhancement, with a more pronounced effect on shales with coarser calcite grains. Higher calcite content can result in higher pH values, higher permeabilities, and more barite precipitation in the domain, as shown by simulations.
Article
Energy & Fuels
Ning Wang, Fengpeng Lai, Yingkun Fu, Zhiping Li, Qi Wang
Summary: This study develops a fractal model for dynamic imbibition process in tight porous media by incorporating dynamic contact angle (DCA) at capillary and core scales. The model is validated with experimental data and it shows satisfactory fitting. Considering DCA improves the model's accuracy, while neglecting DCA results in overestimated imbibition rate and oil recovery. Sensitivity analysis reveals significant differences in imbibition recovery between models considering and not considering DCA under high contact angle, high interfacial tension, and low displacing pressure. This study highlights the importance of considering DCA in DI modeling for fracturing practices in tight reservoirs.
Article
Engineering, Chemical
Kiseok Kim, Patrick M. Kundzicz, Roman Y. Makhnenko
Summary: Geologic carbon storage (GCS) is gaining attention as an effective method to reduce CO2 emissions by injecting CO2 into brine-saturated reservoir formations. This study aims to characterize the chemical effect of CO2 injection on multiphase flow in water-saturated reservoir rock. The experiments were conducted on silica-rich Berea sandstone and calcite-rich Apulian and Indiana limestones. The results show changes in relative permeability, saturation, apparent contact angle, and surface roughness, indicating the significant influence of CO2 on flow properties, especially in limestones.
TRANSPORT IN POROUS MEDIA
(2023)
Article
Chemistry, Physical
Xiao Deng, Muhammad Shahzad Kamal, Shirish Patil, Syed Muhammad Shakil Hussain, Xianmin Zhou, Mohamed Mahmoud
Summary: The study found that cationic gemini surfactants with different molecular structures have varying effects on wettability alteration in carbonate reservoirs, with the surfactant containing one phenyl group showing the best performance. The wettability alteration performance of surfactants is also influenced by factors such as bromine ions, and for low permeability carbonate rocks, it is an important parameter.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Energy & Fuels
Scott Higgs, Ying Da Wang, Chenhao Sun, Jonathan Ennis-King, Samuel J. Jackson, Ryan T. Armstrong, Peyman Mostaghimi
Summary: Underground Hydrogen Storage (UHS) is a technology aimed at storing renewable energy and reducing energy market fluctuations. The study compares the properties of different gas-water systems and finds that nitrogen and methane can be suitable analogue gases for UHS projects, improving safety and economics.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Petroleum
Pal Andersen, Reidar Korsnes, Andre Olsen, Erik Bukkholm
Summary: The study introduces a methodology for determining reaction kinetics from coreflooding experiments, successfully achieving accurate determination of reaction kinetics and effective prediction of chemical interactions.