Yinlin Ji
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View article: Limits of Self‐Propping in Enhanced Geothermal Systems: New Experimental Insights From Shear, Tensile and Saw‐Cut Fractures in Odenwald Granodiorite
Limits of Self‐Propping in Enhanced Geothermal Systems: New Experimental Insights From Shear, Tensile and Saw‐Cut Fractures in Odenwald Granodiorite Open
Enhanced Geothermal Systems (EGS) use engineered fracture networks as fluid pathways and heat exchangers in hot, low‐permeability rock. Unlike gel‐proppant hydraulic fracturing treatments, many EGS use hydraulic shear stimulation to increa…
View article: Grain size effects on hydro-seismo-mechanical responses of granite during laboratory hydraulic fracturing
Grain size effects on hydro-seismo-mechanical responses of granite during laboratory hydraulic fracturing Open
View article: Alleviating post-injection seismic hazard in enhanced geothermal systems: Insights from a multi-scale study
Alleviating post-injection seismic hazard in enhanced geothermal systems: Insights from a multi-scale study Open
View article: Frictional Stability and Permeability Enhancement of a Natural Granite Fracture under Monotonic and Cyclic Fluid Injections
Frictional Stability and Permeability Enhancement of a Natural Granite Fracture under Monotonic and Cyclic Fluid Injections Open
View article: Estimation of <i>in-situ</i> horizontal stresses based on multiscale borehole breakout data via machine learning: model development, validation and application
Estimation of <i>in-situ</i> horizontal stresses based on multiscale borehole breakout data via machine learning: model development, validation and application Open
SUMMARY Borehole breakout (BO) has increasingly been utilized to estimate in-situ stress magnitudes given the importance of the stress field in subsurface activities and the limitations of conventional stress measurement techniques. In thi…
View article: How rock hydraulic fatigue methods from mining and petroleum industry assist in unlocking deep heat for a clean energy future
How rock hydraulic fatigue methods from mining and petroleum industry assist in unlocking deep heat for a clean energy future Open
View article: Quantifying Localized and Delocalized Rock Deformation in Multi‐Stage Relaxation Experiments Using Distributed Optical Fiber Sensing
Quantifying Localized and Delocalized Rock Deformation in Multi‐Stage Relaxation Experiments Using Distributed Optical Fiber Sensing Open
Multi‐stage uniaxial and triaxial stress relaxation tests were performed on Weschnitz granodiorite, Beishan granite, and Jinping dolomite marble to investigate the deformation evolution before system‐size failure, and to study stress relax…
View article: Strain localization and time-dependent deformation in granodiorite characterized by distributed optical fiber sensing
Strain localization and time-dependent deformation in granodiorite characterized by distributed optical fiber sensing Open
View article: MELRSNet for accelerating the exploration of novel ultrawide bandgap semiconductors
MELRSNet for accelerating the exploration of novel ultrawide bandgap semiconductors Open
Ultrawide bandgap (UWBG) semiconductors, with bandgaps exceeding 3.4 eV of gallium nitride, offer the potential to overcome the limitations of conventional semiconductors and drive innovations in electronics and photovoltaics. However, dis…
View article: A review of GaN HEMTs: Characteristics, parameter impacts, and strategies for oscillation suppression
A review of GaN HEMTs: Characteristics, parameter impacts, and strategies for oscillation suppression Open
View article: Data-driven forecasting of pharmaceutical sales: distinguishing promotional vs. daily scenarios
Data-driven forecasting of pharmaceutical sales: distinguishing promotional vs. daily scenarios Open
View article: Research and Design of Intelligent Operation and Maintenance Management System for Communication Equipment Rooms
Research and Design of Intelligent Operation and Maintenance Management System for Communication Equipment Rooms Open
View article: Insights into the 3D thermal structure of interplate earthquakes in the Colombia–Ecuador subduction zone
Insights into the 3D thermal structure of interplate earthquakes in the Colombia–Ecuador subduction zone Open
Throughout the 20th century, several large megathrust earthquakes were observed in the Colombia–Ecuador subduction zone which widely ruptured plate interfaces, causing considerable damage and loss of life. The occurrence of earthquakes in …
View article: Subduction thermal state, slab metamorphism, and seismicity in the Makran Subduction Zone
Subduction thermal state, slab metamorphism, and seismicity in the Makran Subduction Zone Open
The dependence of the subduction regime on three-dimensional slab geometry poses a challenge for accurately estimating the evolving thermal structure of megathrusts globally. Although slab dips and ages have gained attention, the specific …
View article: Assessing Potential Seismic Hazard in Enhanced Geothermal Systems: Insights from Comparing Gonghe and Pohang Reservoirs
Assessing Potential Seismic Hazard in Enhanced Geothermal Systems: Insights from Comparing Gonghe and Pohang Reservoirs Open
Evaluating and predicting the seismic hazard induced by fluid injection in enhanced geothermal systems (EGSs) is critical for safe and effective operations. This study compares the Gonghe project, a pioneering EGS initiative in China, with…
View article: Impact of injection rate on smooth and rough fracture activation in granite: Laboratory-scale acoustic emission analysis
Impact of injection rate on smooth and rough fracture activation in granite: Laboratory-scale acoustic emission analysis Open
This study aims to understand the effect of injection rate on injection-induced fracture activation in granite. We performed water injection-induced slip tests on samples containing either a smooth or a rough fracture at four different inj…
View article: A laboratory study on fault slip caused by fluid injection directly versus indirectly into a fault: implications for induced seismicity in EGSs
A laboratory study on fault slip caused by fluid injection directly versus indirectly into a fault: implications for induced seismicity in EGSs Open
Enhanced geothermal systems (EGSs) developed by hydraulic stimulation are promising for exploiting petrothermal heat by improving fluid pathways in low-permeable geothermal reservoir rocks. However, fluid injection into the subsurface can …
View article: Relating normal stiffness to permeability of a deformed self-affine rough fracture using its geometric properties
Relating normal stiffness to permeability of a deformed self-affine rough fracture using its geometric properties Open
In subsurface projects where the host rock is of low permeability, fractures play an important role in fluid circulation. Both the geometrical and mechanical properties of the fracture are relevant to the permeability of the fracture. To e…
View article: Temporal evolution of shear-induced dilatancy of rock fractures: controls from surface roughness and normal stress
Temporal evolution of shear-induced dilatancy of rock fractures: controls from surface roughness and normal stress Open
SUMMARY Understanding the shear-induced dilatancy of rock fractures is important for assessing the permeability evolution and seismic hazard in shale and geothermal reservoirs. The displacement dependence of fracture dilation has been well…
View article: Mechanical anisotropy associated with beddings in shale under Brazilian test conditions: Insights from acoustic emission statistics
Mechanical anisotropy associated with beddings in shale under Brazilian test conditions: Insights from acoustic emission statistics Open
A comprehensive understanding of shale's bedding anisotropy is crucial for shale-related engineering activities, such as hydraulic fracturing, drilling and underground excavation. In this study, seven Brazilian tests were conducted on shal…
View article: A micromechanical analysis of marble pulverization under quasi-static progressive cyclic loading
A micromechanical analysis of marble pulverization under quasi-static progressive cyclic loading Open
Highly fragmented rocks (i.e., pulverized rocks) in the fault damage zone presumably develop during co-seismic deformation processes. These pulverized rocks close to the fault core are generally thought to originate from high strain rates,…
View article: Triaxial fluid depressurization experiments with different shut-in strategies on a granodiorite sample
Triaxial fluid depressurization experiments with different shut-in strategies on a granodiorite sample Open
This is the experimental data for the manuscript entitled Fluid extraction mitigates post-injection seismicity in laboratory experiments and geothermal reservoirs, which has been submitted for consideration for publication in…
View article: Triaxial fluid depressurization experiments with different shut-in strategies on granodiorite sample
Triaxial fluid depressurization experiments with different shut-in strategies on granodiorite sample Open
This is the experimental data for the manuscript entitled Fluid extraction mitigates post-injection seismicity in laboratory experiments and geothermal reservoirs, which has been submitted for consideration for publication in…
View article: Triaxial fluid depressurization experiments with different shut-in strategies on a granodiorite sample
Triaxial fluid depressurization experiments with different shut-in strategies on a granodiorite sample Open
This is the experimental data for the manuscript entitled Fluid extraction mitigates post-injection seismicity in laboratory experiments and geothermal reservoirs, which has been submitted for consideration for publication in…
View article: The role of temperature‐enhanced fault closure in promoting postinjection pressure diffusion and seismicity in enhanced geothermal systems
The role of temperature‐enhanced fault closure in promoting postinjection pressure diffusion and seismicity in enhanced geothermal systems Open
Post shut‐in seismic events in enhanced geothermal systems (EGSs) occur predominantly at the outer rim of the co‐injection seismic cloud. The concept of postinjection fracture and fault closure near the injection well has been proposed and…
View article: Fracture Permeability Enhancement During Fluid Injection Modulated by Pressurization Rate and Surface Asperities
Fracture Permeability Enhancement During Fluid Injection Modulated by Pressurization Rate and Surface Asperities Open
We present a series of controlled fluid injection experiments in the laboratory on a pre‐stressed natural rough fracture with a high initial permeability (∼10 −13 m 2 ) in granite using different fluid pressurization rates. Our results sho…
View article: Constraining temporal evolution of shear-induced dilatancy of rock fractures
Constraining temporal evolution of shear-induced dilatancy of rock fractures Open
The transient shear-induced fracture dilation can be well described by combining displacement-and velocity-dependent aperture models. Constitutive parameters in the transient aperture model are constrained under various surface roughnes…
View article: Numerical investigation of the effect of fluid pressurization rate on laboratory-scale injection-induced fault slip
Numerical investigation of the effect of fluid pressurization rate on laboratory-scale injection-induced fault slip Open
The effect of normal stress variations on fault frictional strength has been extensively characterized in laboratory experiments and modelling studies based on a rate-and-state-dependent fault friction formalism. However, the role of pore …
View article: Fluid injection experiments at different pressurization rates to a critically stressed natural fracture in granite
Fluid injection experiments at different pressurization rates to a critically stressed natural fracture in granite Open
This is the experimental data for the manuscript entitled Fracture permeability enhancement during fluid injection controlled by pressurization rate and slip velocity, which has been submitted for consideration for publication in …
View article: Triaxial fluid injection experiments involving Injecting fluid directly into a fault versus adjacent to a fault
Triaxial fluid injection experiments involving Injecting fluid directly into a fault versus adjacent to a fault Open
This is the experimental data for the manuscript entitled A laboratory study on fault slip caused by fluid injection directly versus indirectly into a fault: implications for induced seismicity in EGS<…