Article
Thermodynamics
Yuwei Li, Jizhou Tang, Jun Zhang, Wanchun Zhao, Bo Liu, Yishan Pan
Summary: In this paper, a thermo-hydro-mechanical coupling model is established to study the influence of formation horizontal stress difference, approaching angle, and fracturing fluid injection temperature on CO2 fracturing. The results show that compared with hydraulic fracturing, CO2 fracturing can significantly reduce the fracture initiation pressure and time, and obtain a more complex fracture morphology. The approaching angle is linearly related to the initiation pressure and initiation time of opening new fractures.
Article
Green & Sustainable Science & Technology
Guofeng Song, Xianzhi Song, Fuqiang Xu, Gensheng Li, Yu Shi, Jiayan Ji
Summary: This research aims to quantify the contributions of mechanical and chemical behaviors to reservoir feature variation during geothermal production, and a fully coupled THMC model is developed. The findings show that the mechanical effect plays a major role near the injection well and in a short term, while the chemical effect is dominated far from the injection well.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Computer Science, Interdisciplinary Applications
Tuan A. Pham, Gabriela M. Medero, Melis Sutman
Summary: This paper presents a thermohydro-mechanical coupled model of the elastic modulus characteristic curve (EMCC) based on the effective stress theories of unsaturated soils. The proposed model uses the soil-water characteristic curve (SWCC) and the modulus of elasticity under saturated conditions to predict the variation of modulus of elasticity with matric suction for unsaturated soils. The successful prediction performance of the proposed model is demonstrated by comparing measured and predicted outcomes for various published data sets related to different soil types.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Geochemistry & Geophysics
Waheed Gbenga Akande, Quan Gan, David G. Cornwell, Luca De Siena
Summary: Modeling seismicity at volcanoes using coupled fluid-flow and mechanical simulators successfully reproduces fluid-induced seismicity at Campi Flegrei caldera. The presence of rock-sealing formations is crucial for accurate seismic predictions, and thermal effects influence the timing and magnitude of seismic activity.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Green & Sustainable Science & Technology
Fujian Yang, Guiling Wang, Dawei Hu, Yanguang Liu, Hui Zhou, Xianfeng Tan
Summary: The study investigates the THM coupling parameters of granite treated with heating and water cooling, revealing a large number of cracks and establishing prediction models for THM coupling parameters.
Article
Materials Science, Multidisciplinary
M. Eghbalian, R. Wan, M. Pouragha
Summary: This paper presents a micromechanical description of the swelling behavior of partially saturated clays. The representative elementary volume (REV) of clay at the nano-scale consists of idealized parallel clay platelets and oblate spheroidal pores saturated with an electrolyte solution. Swelling forces at all spacing ranges are considered, and the description at the macroscopic level takes into account the couplings of mechanical, hydraulic, and electrochemical forces. The paper focuses on reversible deformation mechanisms in clay and obtains a generalized nonlinear form of Biot's poroelasticity relation with additional terms for capillary and swelling stresses. The stress description of clays is embedded with microstructural information, and a localization procedure is utilized to track microstructural changes. Material point simulations of clay swelling tests are used to investigate the baseline features of the model.
MECHANICS OF MATERIALS
(2022)
Article
Engineering, Geological
Wu Liu, Jin Cheng, Huayan Yao, Liange Zheng, Qinghe Zhang, Zhenhua Zhang, Fan Yang
Summary: Under the thermodynamics framework, a thermo-hydro-mechanical coupling model was established for fractured rock mass considering both small-scale microcracks and large-scale fractures. The model takes into account the deformation evolution, permeability, and thermal conductivity variations caused by damage growth and frictional sliding. The model was validated using analytical solutions and laboratory compression test data, and it was applied to study the heat extraction responses of a three-dimensional enhanced geothermal reservoir.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2023)
Article
Energy & Fuels
Tianwei Sun, Qingdong Zeng, Huilin Xing
Summary: The study presents a coupled thermo-hydro-mechanical model to simulate multiple hydraulic fracture propagation. It is found that non-uniform fracture spacings and increasing spacing away from the wellbore heel promote uniform growth of multiple fractures. Single-wing fracturing greatly improves the uniform growth of multiple hydraulic fractures.
Article
Computer Science, Interdisciplinary Applications
Xiao-Ping Zhou, Er-Bao Du, Yun-Teng Wang
Summary: This paper proposes a thermo-hydro-chemo-mechanical coupling peridynamic model for fractured rock mass to simulate fluid-driven crack, water pressure, and temperature characteristics. The model is validated by comparing with analytical solutions and previous numerical results, and shows good agreement with results obtained by the phase field method. The model is also used to simulate geothermal extraction process and investigate water pressure and thermal field distribution.
COMPUTERS AND GEOTECHNICS
(2022)
Article
Thermodynamics
Xin-Zhong Wang, Dong Wang, Zhe-Wei Wang, Xiao-Juan Yin, Xue-Jun Zhou, Ru Zhang, An-Lin Zhang, Gan Feng, Li Ren
Summary: The study showed that the elastic modulus and Poisson's ratio of granite change with increasing temperature, while the pore water pressure has a slight effect on the elastic modulus. During the thermo-hydro-mechanical coupling process, acoustic emission activity increases with temperature.
Article
Energy & Fuels
Hongjin Yu, Ziwen Li, Yansong Bai, Yinji Wang, Hongqing Hu
Summary: This paper develops a coupled thermo-hydro-mechanical flow (THM) model to study the effects of different injected gases on enhanced coalbed methane (ECBM) recovery. The results show that CO2 injection reduces the permeability of coal seam while N-2 injection effectively restores the permeability. Furthermore, the initial water saturation also affects the production of coalbed methane.
Article
Engineering, Environmental
Reza Ershadnia, Corey D. Wallace, Sassan Hajirezaie, Seyyed Abolfazl Hosseini, Thanh N. Nguyen, Daniel Murray Sturmer, Zhenxue Dai, Mohamad Reza Soltanian
Summary: This study investigates the effects of different factors on the effectiveness of geological carbon sequestration through a CO2 injection pilot project. The results show that neglecting thermal effects, geochemical reactions, capillary pressure heterogeneity, geomechanical processes, and permeability enhancement can all impact the sequestration efficiency. This has practical implications for designing effective field scale experiments and numerical simulations of geological carbon sequestration.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Geological
Xin Cui, Louis Ngai Yuen Wong
Summary: Enhanced geothermal systems (EGS) are currently the most efficient method to extract heat from hot dry rock (HDR) reservoirs. This study developed a novel 3D thermo-hydro-mechanical coupling model to predict the long-term performance of EGS. The simulation results showed that while EGS maintains high productivity during early injection stages, it degrades rapidly once thermal drawdown occurs.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2021)
Article
Energy & Fuels
Michael B. Reiter, Josiane Jello, Tugce Baser
Summary: This study investigates the impact of temperature and stress-dependent hydraulic conductivities on the thermo-hydro-mechanical behavior of energy foundations installed in saturated glacial tills. A thermo-poroelastic model based on the finite element method is developed and validated against field measurements, and then used to simulate different energy foundations. The results show that temperature and stress-dependent hydraulic conductivity significantly influence the evolution of pore water pressure, axial stress, and shaft resistance. Considering the evolution of coupled soil properties is necessary to capture the peak response of energy foundations in saturated glacial tills.
Article
Energy & Fuels
Qi Gao, Songcai Han, Yuanfang Cheng, Xian Shi, Chuanliang Yan
Summary: The development of horizontal drilling and hydraulic fracturing technologies have enabled the commercial extraction of shale gas resources. However, a significant amount of shale gas remains unrecoverable due to gas adsorption. Thermal stimulation has been proposed as a method to enhance shale gas recovery by promoting desorption of gas. This study develops a fully coupled thermo-hydro-mechanical (THM) model to characterize gas transport and extraction in shale matrix during thermal treatment.
GEOMECHANICS FOR ENERGY AND THE ENVIRONMENT
(2023)
Article
Engineering, Chemical
Jingtao Zhang, Haipeng Zhang, Donghee Lee, Sangjin Ryu, Seunghee Kim
TRANSPORT IN POROUS MEDIA
(2020)
Article
Engineering, Chemical
Min-Kyung Jeon, Seunghee Kim, Amin Hosseini Zadeh, Tae-Hyuk Kwon
TRANSPORT IN POROUS MEDIA
(2020)
Article
Energy & Fuels
Mohamed Mehana, Seyyed A. Hosseini, Timothy A. Meckel, Hari Viswanathan
GREENHOUSE GASES-SCIENCE AND TECHNOLOGY
(2020)
Article
Geosciences, Multidisciplinary
Jingtao Zhang, Haipeng Zhang, Donghee Lee, Sangjin Ryu, Seunghee Kim
Summary: This study utilized micromodels with different levels of pore-space heterogeneity to investigate flow morphology, sweep efficiency, residual saturation, and other factors during repetitive fluid injection-drainage processes. The experimental results showed that the invasion and displacement patterns of the non-wetting fluid converged more readily in the homogeneous model as the repetitive drainage-imbibition process continued.
PETROLEUM GEOSCIENCE
(2021)
Article
Thermodynamics
Jingtao Zhang, Amin Hosseini Zadeh, Seunghee Kim
Summary: This study used an analytical approach to calculate the hoop and radial stresses of a small- or medium-scale CAES using salt domes at shallow depths, showing good matches for all tested parameters. It was found that mechanical stability at the crown of the storage cavity could be crucial for allowable storage pressure ranges, with higher K and W/H values advantageous for securing higher storage pressure. Energy storage capacities were estimated between 1 and 10 MJ/m(3) based on the analysis.
Article
Energy & Fuels
Dong Feng, Sahar Bakhshian, Keliu Wu, Zhaojie Song, Bo Ren, Jing Li, Seyyed Abolfazl Hosseini, Xiangfang Li
Summary: This study analyzes the impact of nanoconfinement effects on hydrocarbons in nanopores, finding that wettability influences the critical properties' shift and curvature-dependent effects. Results show that nanoconfinement effects are dependent on both pore size and wettability.
Article
Geosciences, Multidisciplinary
Reza Ershadnia, Corey D. Wallace, Seyyed Abolfazl Hosseini, Zhenxue Dai, Mohamad Reza Soltanian
Summary: The study highlights the importance of capillary pressure heterogeneity in sedimentary architecture for the lateral migration of CH4 in aquifers. It shows that meter-scale sedimentary stratification plays a significant role in CH4 plume migration compared to finer scale strata. Understanding sedimentary architecture and capillary pressure heterogeneity is crucial for accurately assessing the extent of gaseous CH4 leakage and its impacts on groundwater quality and global warming.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Engineering, Geological
Tewodros Y. Yosef, Chen Fang, Ronald K. Faller, Seunghee Kim
Summary: This paper presents a Multi-Material Arbitrary Lagrangian-Eulerian (MM-ALE) model for predicting the pile-soil interaction and forces during lateral dynamic impact events. The model, validated with large-scale dynamic impact test data, incorporates an elasto-viscoplastic soil material model and an elasto-plastic steel material model to examine pile response during lateral vehicle impacts. The study also investigates the effects of impact velocity, embedment depth, and soil strength on impact forces, energy dissipation, and impulse response of a pile-soil system.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Amin Hosseini Zadeh, Ijung Kim, Seunghee Kim
Summary: Hydrate-based CO2 sequestration (HBCS) is a new method to store large amounts of CO2 in geological sediments as crystalline solids. This study investigates the characteristics and kinetics of CO2 hydrate formation and dissociation under different conditions. The results suggest that hydrate nucleation and growth are limited in a porous medium due to solid particles, limited CO2 mass transfer, and heat transfer. Limited CO2 diffusion, hydrate nucleation, and better protection of hydrates are key factors for successful formation in the porous medium.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2023)
Article
Green & Sustainable Science & Technology
Alexander P. Bump, Sahar Bakhshian, Hailun Ni, Susan D. Hovorka, Marianna I. Olariu, Dallas Dunlap, Seyyed A. Hosseini, Timothy A. Meckel
Summary: Permanent containment is crucial for geologic carbon sequestration. The concept of composite confining systems, consisting of multiple layers of discontinuous barriers, offers an alternative to traditional petroleum seals for CO2 storage. Physical modeling, geologic characterization, and numerical modeling demonstrate that these systems can effectively prevent vertical migration of CO2. However, risks such as shortcut paths through stratigraphic barriers need to be addressed.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2023)
Article
Mechanics
Amin Hosseini Zadeh, Min-Kyung Jeon, Tae-Hyuk Kwon, Seunghee Kim
Summary: This study summarizes recent pore-scale experimental efforts to improve our understanding of the hydro-mechanical coupling at the pore scale. The effects of various fluid flow conditions on fluid-driven deformation and concurrent fluid transport are comprehensively examined. Four particle-level pressure terms are introduced as primary indicators to capture the observed regimes of fluid-driven deformation and fluid transport. The study provides unique pore-scale experimental results and advances our understanding of hydro-mechanical behavior associated with fluid injection. Rating: 8/10.
INTERNATIONAL JOURNAL OF MULTIPHASE FLOW
(2023)
Article
Engineering, Civil
Yusuf Alhowaidi, Jongwan Eun, Seunghee Kim, Chung R. R. Song, Fouad Jaber
Summary: The construction of integral abutment bridges has increased due to cost reduction, but the elimination of expansion joints has caused complex interactions between the bridge structure and the surrounding soil. This study investigates the behavior of a newly constructed curved integral abutment bridge through field monitoring and numerical simulation. The results show that seasonal temperature fluctuations lead to significant lateral movements and increase in backfill pressures.
TRANSPORTATION RESEARCH RECORD
(2023)
Article
Chemistry, Analytical
Seunghee Kim, Jingtao Zhang, Sangjin Ryu
Summary: This study used microfluidic pore-network devices to investigate the impact of pore shape, pore-space heterogeneity, and flow rates on repetitive two-phase fluid flow in porous media. The results showed that pore shape and pore-space heterogeneity had a more prominent effect at low flow rates, while higher flow rates outweighed these factors for certain structures. Additionally, the study found that the flow morphology and required pressure gradient may stabilize after 4-5 cycles, regardless of pore shape, heterogeneity, and flow rates.
Article
Engineering, Geological
Ijung Kim, Caroline Best, Seunghee Kim
GEOTECHNIQUE LETTERS
(2020)
Article
Construction & Building Technology
Sihyun Kim, Seunghee Kim, Jingtao Zhang, Ethan Druszkowski, Abdallah Sweidan
Summary: The research demonstrates that temperature fluctuations can cause materials on a slope to slip, which may gradually amplify and result in structural instability. Experimental and numerical modeling results indicate that the movement of neutral points is a key factor leading to unrecovered slips after temperature cycling.