Article
Engineering, Geological
Peihao Ouyang, Pingping Rao, Jian Wu, Jifei Cui, Sanjay Nimbalkar, Qingsheng Chen
Summary: This paper presents a computational analysis of the evolution of mechanical characteristics in natural rock formations under the combined action of high-voltage electro-pulse and fluid injection. The numerical solution based on a hydromechanical model utilizes an anisotropic damage model to capture tensile and shear damage. The simulations reveal that high-voltage electro-pulse can significantly enhance the effectiveness of rock-breaking in fluid injection, providing potential implications for optimizing rock-breaking strategies in geoengineering applications.
ROCK MECHANICS AND ROCK ENGINEERING
(2023)
Article
Energy & Fuels
Miao He, Qi Li, Xiaying Li
Summary: In this paper, a user-defined field was developed in the commercial finite element software ABAQUS to improve the hydromechanical coupling analysis of injection-induced fault activation. Verification was performed to demonstrate the capabilities and reliabilities of the user-defined field.
GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
(2022)
Article
Energy & Fuels
Xia Yan, Hai Sun, Zhaoqin Huang, Lijun Liu, Ping Wang, Qi Zhang, Jun Yao
Summary: This article presents a new hierarchical approach for simulating hydromechanical coupling in fractured shale gas reservoirs with multiple porosity scales. The method uses equivalent mesoscopic models and two-level homogenization to represent materials and fractures implicitly through an equivalent continuum model, while explicitly considering hydraulic fractures. Test and application of this hierarchical approach show its effectiveness in studying various factors affecting gas production.
Article
Computer Science, Interdisciplinary Applications
Zhan Yu, Jianfu Shao, Gilles Duveau, Minh-Ngoc Vu, Gilles Armand
Summary: This study focuses on numerical modeling of hydromechanical response and induced damage zones around an experimental gallery at the underground research laboratory in France, using a new phase-field method that considers two independent damage fields to describe both tensile and shear cracks. The method is extended to saturated porous media by incorporating the effect of fluid pressure, and is able to well describe the main features of hydromechanical responses and damage processes.
COMPUTERS AND GEOTECHNICS
(2021)
Article
Engineering, Biomedical
Bchara Sidnawi, Zhen Chen, Chandra Sehgal, Sridhar Santhanam, Qianhong Wu
Summary: The study introduces a physics-based mathematical model to describe mechanotransduction during flow-mediated dilation of the brachial artery. The model successfully predicts the artery's dilation and could potentially aid in detecting early stages of cardiovascular diseases.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Engineering, Geological
Elham Hosseinkhani, Ghassem Habibagahi, Ehsan Nikooee
Summary: Determining strain-dependent shear modulus and damping ratio is crucial when investigating soil response to cyclic loads. Experimental studies on the effect of saturation and suction on shear modulus are lacking, and micromechanical models for unsaturated soils are incomplete. This paper presents a numerical method that combines discrete element simulation and fluid pore network to capture cyclic behavior of unsaturated sands. The model is calibrated using static drained triaxial tests on dry and saturated sand samples and then used to simulate cyclic tests on unsaturated sands. The results show a linear relationship between plastic rolling coefficient and saturation, as well as varying shear modulus and damping ratio with shear strain amplitude and saturation.
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
(2023)
Article
Geochemistry & Geophysics
Keurfon Luu, Martin Schoenball, Curtis M. Oldenburg, Jonny Rutqvist
Summary: This study uses a coupled multiphase fluid flow and geomechanical simulator to model the fluid pressure and stress changes during CO2 injection, and investigates the impact of CO2 injection on faults in crystalline basement rock. The results show that considering poroelastic stress changes is crucial for accurately modeling the seismicity rate.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2022)
Review
Environmental Sciences
Yanlin Zhao, Qiang Liu, Hang Lin, Yixian Wang, Wenyu Tang, Jiao Liao, Yang Li, Xiaguang Wang
Summary: This paper systematically describes the current status of experimental and coupling theory research on hydromechanical coupling, introduces briefly the commonly used numerical simulation methods and their applications, and analyzes the hydromechanical coupling problems in mining engineering, water conservancy, slope engineering, tunneling engineering, and other fields. In terms of research, further enhancement of test studies on the triaxial shear permeability of rock material is needed, and a combination of macroscopic, fine, and microscopic methods should be adopted to study the hydraulic coupling problems of rock materials from different scales.
Article
Engineering, Marine
Lei Jia, Yu Zhang, Deming Zhu, You Dong
Summary: This study investigates the effects of wave incident angles on coastal bridge superstructures by developing an advanced computational fluid dynamics (CFD) model. The study finds that wave forces can cause severe damage to bridge structures under extreme conditions. In addition, three surrogate models are established to predict wave forces in different directions.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Geological
Yue Ma, Jun Feng, Shangqi Ge, Kai Wang, Xiaohui Chen, Aizhong Ding
Summary: This paper develops a thermodynamics consistency constitutive model for the fully coupled hydromechanical behavior in double porosity formation using the nonequilibrium thermodynamics-based approach, the mixture coupling theory. The energy dispassion due to fluid flow in matrix pore and fracture is given through nonequilibrium thermodynamics, and the relationship between the solid and fluid is linked through the Helmholtz free energy. The dynamic evolution of stress, porosity change of the matrix pores, and fracture are derived with respect to mechanical strain, pore pressure, and fracture pressure to account for the flow-deformation interaction.
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2023)
Article
Multidisciplinary Sciences
Yixin Liu, Chuanhua Xu, Jiang Xu, Xuemin Zeng
Summary: The injection of fluids into fault gouges can disturb stress conditions and increase the risk of earthquakes. This study investigates the effect of water injection and shear deformation on the hydro-mechanical characteristics of fault gouges. The results show that injecting water significantly reduces the maximum shear strength, and the effect varies with the gouge fill material. Shear deformation increases the inhomogeneity of thickness distribution and leads to non-uniform distribution of injected water along the fault.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Geological
Chengzeng Yan, Hongwei Fan, Duruo Huang, Gang Wang
Summary: A novel two-dimensional mixed fracture-pore seepage model for fluid flow in fractured porous media is proposed based on the computational framework of FDEM, providing a simple and effective tool for solving this problem. The simulation results verify the correctness of the model, and a coupled hydromechanical model is also established.
Article
Engineering, Environmental
Tianjiao Yang, Patrick Selvadurai, Pengyu Wang, Shuhong Wang, Huan Liu
Summary: In this paper, the Barton-Bandis model is used to develop a theoretical estimate that considers hydro-mechanical coupling in fractures and shear dilation. The properties of sandstone from the Xinglong Tunnel are taken into consideration and the COMSOL (TM) software is used to implement the hydro-mechanical coupling model. The results obtained contribute to understanding the hydro-mechanical coupling characteristics in rough fractures with different inclination angles under 3D compressive and shear stress.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2022)
Article
Water Resources
R. Quevedo, D. Roehl, C. Romanel
Summary: This paper presents formulations for modeling the hydromechanical behavior in unsaturated soils using different coupling techniques. Numerical tests are carried out to evaluate the stability, accuracy, and performance of the proposed techniques. The results demonstrate that the techniques can properly simulate the hydromechanical behavior of unsaturated soils.
ADVANCES IN WATER RESOURCES
(2023)
Article
Computer Science, Interdisciplinary Applications
Fei Wang, Wei Li, Xinli Hu, Ziwei Cao, Yunfei Gao
Summary: The undrained shear test is crucial in understanding the deformation and failure mechanisms of rock and soil, but it has its limitations. This paper proposes a tailored numerical simulation approach to complement the test, and validates its effectiveness and accuracy through specific cases.
COMPUTERS AND GEOTECHNICS
(2023)
Review
Geosciences, Multidisciplinary
Ying Xiong, Zhengmeng Hou, Heping Xie, Jinzhou Zhao, Xiucheng Tan, Jiashun Luo
Summary: This article provides an overview of microbial-mediated CO2 methanation, which plays a key role in the production of renewable natural gas in renewable and zero-carbon energy systems. It focuses on the biogeochemical mechanism and potential applications for renewable energy conversion and storage, emphasizing the importance for China's carbon neutrality goals. The article discusses the use of subsurface CO2 utilization and renewable natural gas storage, as well as potential applications in power generation and CO2 emission reduction.
Review
Engineering, Geological
Lin Wu, Zhengmeng Hou, Zhifeng Luo, Ying Xiong, Nanlin Zhang, Jiashun Luo, Yanli Fang, Qianjun Chen, Xuning Wu
Summary: This paper reviews the numerical simulations of wellbore flow and heat transfer, fracture initiation and propagation, and proppant transport in SC-CO2 fracturing, including the numerical approaches and the obtained findings. The research shows that the variations of wellbore temperature and pressure are complex and strongly transient in SC-CO2 fracturing. Compared to hydraulic fracturing, SC-CO2 fracturing has a lower fracture initiation pressure and can form a more complex fracture network. The paper provides valuable insights for further research and promotes the practical application of SC-CO2 fracturing technology.
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
(2023)
Article
Geochemistry & Geophysics
Lei Xu, Liang Tang, Xiaolin Zhang, Zhengmeng Hou, Muhammad Haris, Jiashun Luo, Yuanliang Yang
Summary: This study investigates the behavior of arsenic in a mining ecosystem in China, specifically in the Wanniangou tailings pond and the downstream Rehe River. The pH range of the mine water affects the concentration of arsenic, and the chemical weathering of tailings contributes to abnormal levels of arsenic in the water. However, mechanisms such as sediment absorption, aquatic plant uptake, and manganese co-precipitation help in the ecological refixation of arsenic, making it possible for the safe use of mine water. The selection of a downstream location for the tailings pond creates a buffer zone for self-restoration, reducing the contamination probability and enabling the re-utilization of mining wastewater.
Article
Energy & Fuels
Zhengmeng Hou, Jiashun Luo, Yachen Xie, Lin Wu, Liangchao Huang, Ying Xiong
Summary: This paper proposes six priorities for China to achieve its dual carbon strategy, and analyzes the challenges and potential of conventional carbon utilization, carbon capture utilization, and carbon capture utilization storage. Based on the current development trend, CCCUS technology, namely biomethanation, is proposed as a solution for China's renewable energy utilization and storage, as well as the carbon circular economy.
Article
Engineering, Geological
Jianxing Liao, Hong Wang, Faisal Mehmood, Cao Cheng, Zhengmeng Hou
Summary: Hydraulic fracturing of hard rock in geothermal reservoir is studied using an anisotropic damage-permeability model based on continuum theory. The model considers plastic-hardening and damage-softening behaviors, and uses a cubic law to characterize damage enhanced permeability. The model is calibrated and validated using triaxial tests on granite, and successfully applied to cyclic fracturing tests at Aspo Hard Rock Laboratory.
Article
Energy & Fuels
Qianjun Chen, Zhengmeng Hou, Xuning Wu, Shengyou Zhang, Wei Sun, Yanli Fang, Lin Wu, Liangchao Huang, Tian Zhang
Summary: This paper introduces a two-step site selection concept for underground pumped hydroelectric energy storage (UPHES) in old coal mines. It includes a screening assessment and a comprehensive assessment to determine suitable locations. The study investigates potential in coal mines in Henan Province and estimates the volume and potential for UPHES. It also highlights the reduction in carbon dioxide emissions through the utilization of surplus wind and solar power.
Article
Energy & Fuels
Liangchao Huang, Zhengmeng Hou, Yanli Fang, Jianhua Liu, Tianle Shi
Summary: Carbon capture, utilization, and storage (CCUS) technology is crucial for achieving carbon neutrality and reducing greenhouse gases. This paper used the latent Dirichlet allocation (LDA) topic model to analyze the hot topics and content evolution in CCUS patents. It also predicted the maturity and development trends of key CCUS technologies using the logistic model to provide guidance for future CCUS technology development. The study found that CCUS technology patents are shifting towards application-level advancements and have seen growth in emerging fields such as computer science. Key CCUS technologies include hydride production, biological carbon sequestration, dynamic monitoring, geological utilization, geological storage, and CO2 mineralization. The development prospects for technologies like hydride production, biological carbon sequestration, and dynamic monitoring are promising, with potential applications in regenerating synthetic methane and biomass utilization.
Article
Energy & Fuels
Zhengmeng Hou, Liangchao Huang, Yachen Xie, Lin Wu, Yanli Fang, Qichen Wang, Yilin Guo
Summary: This study explores the potential of underground biomethanation to achieve carbon neutrality and promote carbon circular utilization by converting CO2 and hydrogen-rich industrial waste gas in depleted natural gas reservoirs (MECHIG). The study demonstrates that the MECHIG concept is economically viable. The fluctuation in natural gas prices has the biggest impact on the net present value (NPV), followed by facility site investment and methanation efficiency.
Article
Mining & Mineral Processing
Yachen Xie, Xuning Wu, Zhengmeng Hou, Zaoyuan Li, Jiashun Luo, Christian Truitt Lueddeke, Liangchao Huang, Lin Wu, Jianxing Liao
Summary: The global energy transition necessitates international exchange of experiences for mutual learning. Germany's success in its initial phase of energy transition can be attributed to its adoption of smart energy technology and implementation of electricity futures and spot marketization. China's distinct approach is needed due to its significantly higher annual electricity consumption, and we recommend a clean energy system based on smart sector coupling (ENSYSCO) to achieve sustainable energy. However, renewable energy storage remains a significant challenge, and we propose four large-scale underground energy storage methods based on ENSYSCO to address this challenge while considering China's national conditions. These proposals have led to pilot projects for large-scale underground energy storage in China, which we believe is necessary for achieving carbon neutrality and efficient grid integration of renewable energy within the ENSYSCO framework.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
Yilin Guo, Zhengmeng Hou, Yanli Fang, Qichen Wang, Liangchao Huang, Jiashun Luo, Tianle Shi, Wei Sun
Summary: In a study focusing on Henan Province, China, the researchers used the STIRPAT model and scenario analysis to forecast carbon emission trajectories across key industries. The findings suggest that different industries have varying timelines for reaching their carbon peak, with only the electricity sector showing potential for zero emissions by 2060 under extreme circumstances.
Article
Thermodynamics
Lin Wu, Zhengmeng Hou, Zhifeng Luo, Liangchao Huang, Ying Xiong, Faisal Mehmood, Jianhua Liu, Wei Sun, Yachen Xie
Summary: Underground biomethanation has great potential for carbon dioxide utilization and sequestration, renewable natural gas production, and large-scale energy storage. A biogeochemical model considering reservoir environment factors has been developed and validated. The study reveals the effects of reservoir parameters and injection parameters on biomethanation efficiency, and suggests utilizing geothermal energy and pre-injecting highly active methanogens to improve efficiency.
Article
Engineering, Geological
Lin Wu, Zhengmeng Hou, Yachen Xie, Zhifeng Luo, Ying Xiong, Long Cheng, Xuning Wu, Qianjun Chen, Liangchao Huang
Summary: In this study, an enhanced thermal-hydraulic-mechanical-chemical (THMC) simulator called CMPSF is presented to analyze the initiation and propagation of supercritical carbon dioxide (scCO2) fracturing in calcite-rich shale. The simulation results show that calcite content and injection temperature affect fracture initiation pressure and rock damage ratio. Calcite dissolution has a minor impact on fracture initiation and propagation at the early stage of scCO2 fracturing.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2023)
Article
Thermodynamics
Jianxing Liao, Ke Hu, Faisal Mehmood, Bin Xu, Yuhang Teng, Hong Wang, Zhengmeng Hou, Yachen Xie
Summary: In this study, a new THM coupled approach based on embedded discrete fracture networks (DFNs) is proposed for simulating the long-term performance of CO2-EGS. The feasibility of the approach is verified through comparison with analytical solution and other methods. The simulation results show the importance of incorporating the THM coupling effect in high temperature reservoirs, as the thermal stress enhances the fracture width and decreases the injection pressure.
Review
Energy & Fuels
Zheng-Meng Hou, Ying Xiong, Jia-Shun Luo, Yan-Li Fang, Muhammad Haris, Qian-Jun Chen, Ye Yue, Lin Wu, Qi-Chen Wang, Liang-Chao Huang, Yi-Lin Guo, Ya-Chen Xie
Summary: Carbon neutrality (or climate neutrality) has become a global consensus and international experience exchange is crucial. Each country should develop a carbon-neutral plan based on its national conditions. This paper provides a comprehensive review of key technologies for reducing carbon emissions and highlights the challenges and opportunities of carbon neutrality in China.
Article
Energy & Fuels
Jianxiong Yang, Jianfeng Liu, Haoyong Huang, Xiangchao Shi, Zhengmeng Hou, Guanlong Guo
Summary: A thermo-hydro-mechanical (THM) model that considers coupled behavior of fractures is developed to investigate gas migration behavior through saturated rocks. The equivalent model improves the calculation accuracy compared to the model without considering fracture behavior, and proves the significance of fractures.
GAS SCIENCE AND ENGINEERING
(2023)
