... including both large size, small size and microscopic radial cracks as well as some circular cracks, while hydraulic fracturing only produces very few radial cracks. Not only in the engineering region, geological processes, like earthquake, meteorite impact involving very high-rate loadings ranging...

... ABSTRACT: The shale fracture characteristics are important for realizing the complex hydraulic fracture network, predicting wellbore fracture pressure and optimizing rock fragmentation efficiency. Through three-point bending test of notched semi-circular specimens, the coupled relationship...

... exceeds the frictional strength of the fractures due to the injection fluid (De Simone et al. 2017). clastic rock rock type mudstone fracture characterization hydraulic fracturing reservoir characterization sedimentary rock structural geology enhanced recovery injection pressure fl uid...

... geomechanics pzt sensor amplitude acoustic emission feasibility brazilian test dynamic loading ae signal specimen hydraulic fracturing geological subdiscipline commercial sensor frequency commercial sensor nano30 emission characteristic wang rock mech ae sensor evolution Rock Dynamics...

... were of great significance to understand the breakage process of granular materials. geologist hydraulic fracturing failure mechanism breakage process mineral glass sphere plastic work quartz breakage quartz glass sphere experiment fracture energy impact velocity geology...

... fracturing behaviours of jointed rock mass is of great importance in ensuring the safety of the engineering. Especially, it is of great interest to investigate how the joints affect the damage characteristics of jointed rock under dynamic disturbance. hydraulic fracturing geological subdiscipline fl...

... drilling operation geological subdiscipline wellbore design reservoir characterization tensile strength hydraulic fracturing specimen strain rate rock mechanic conglomerate journal impact velocity axial stress geology reservoir geomechanics strength gravel layer incident bar...

... their expansion (Zhu et al. 2006). mathematics of computing gas injection method reservoir characterization enhanced recovery element method geologist hydraulic fracturing geological subdiscipline boundary condition gas expansion rock mechanic fi nite-discrete element method fracture degree...

... instability and rock collapse during the construction of the Shuangjiang-kou hydropower station in China (Huang et al. 2022). Hydraulic fracturing leads to induced earthquakes during shale gas production (Eyre et al. 2019) and geothermal energy extraction (Rathnaweera et al. 2020). Prediction, control...

... structural geology hydraulic fracturing fault plane damage zone magnitude chuden engineering consultant co earthquake foreshock epicenter stress drop fracture characterization displacement surface rupture joint element ground motion japan reservoir characterization ground surface fault...

... deformation prediction and early warning at its early stage of progressive damage has become an urgent problem to be solved in the construction of water conservancy projects in southwest China. geologist reservoir geomechanics underground powerhouse hydraulic fracturing geological subdiscipline...

... et al. 2021) and the Discrete Element Model (DEM) (Li et al. 2018a). mathematics of computing reservoir characterization international journal zhao geologist reservoir geomechanics propagation crack propagation hydraulic fracturing numerical method wave propagation geology...

... subdiscipline reservoir simulation hydraulic fracturing discontinuity intensity increase variability mean value strength variability collapse strength mpa dfn model dynamic strength dynamic strength variability specimen jointed rock mass strength variability failure criterion strength...

... behaviours of brittle materials (Wu et al. 2013, Kang et al. 2014). hydraulic fracturing prefabricated crack geologist reservoir geomechanics propagation geology geological subdiscipline lattice spring model dlsm and 4d-lsm fracture diagram bilateral off-center crack fl uence dynamic crack...

... ABSTRACT: Hydraulic fracturing technology of horizontal wells is a crucial stimulation measure in shale reservoirs. The stress field will change during fracture propagation, and the subsequent fracture shape will be uncontrollable. Fractures initiated mainly affect the subsequent fractures...

... and rock dynamic disaster coal body geology wellbore integrity loading rate ae count journal infrared radiation response law organic-rich rock hydraulic fracturing geological subdiscipline failure mode wing failure zhang wang Rock Dynamics: Progress and Prospect Li et al. (eds) © 2023...

... engineering applications, tensile parameters are of concerns, for example, in chamber excavation and hydraulic fracturing (Gong et al. 2019). geologist rock type mudstone strength clastic rock hydraulic fracturing reservoir characterization sedimentary rock mudrock reservoir geomechanics...

... engineering geologist drilling fluids and materials reservoir geomechanics rerr fracture transgranular fracture hydraulic fracturing realistic energy release rate rockburst proneness index reservoir characterization water content rockburst proneness evaluation Rock Dynamics: Progress...

... granular slope granular dynamic and stress transfer simulation geology granular medium figure 2 three-dimensional granular medium granular media hydraulic fracturing loading stress transfer and fracture development photograph esys-particle unidirectional stress transfer dynamic impact loading...

... free surface impact loading hydraulic fracturing impact hammer element method geology geological subdiscipline initial velocity continuum-discontinuum element method rock crack fracture rock block hammer head fracture element number basalt dynamic process cdem different initial velocity...