... Abstract Fault activation and induced seismicity associated with underground injection activities such as geologic carbon storage (GCS), shale-gas fracturing and geothermal stimulation were simulated using a coupled flow and geomechanical numerical model with a strain-softening Mohr-Coulomb...

... Abstract Non-aqueous hydraulic fracturing such as supercritical carbon dioxide (SC-CO 2 ) fracturing has attracted great attention recently. This study aims to investigate the micromechanical behaviors of SC-CO 2 fracturing by using a fluid-solid coupled discrete element method (DEM) model...

... based on Biot's theory and a nonlinear component based on DiMaggio-Sandler cap plasticity model. The numerical approximation is implemented using continuous Galerkin finite element for displacement and pore pressure formulation. Several numerical simulations are performed and the results are compared...

... Abstract A shaly sand model is presented that combines the application of the bounds for dispersed clay modeling and Backus averaging technique for laminated clay modeling. The model produces anisotropic elastic moduli. The moduli are easily populated in 3D or along a proposed wellbore...

... Abstract A numerical geological model is the basis for various development strategies of an oil field. The Brazilian pre-salt reservoirs consist of carbonate rocks that have complex porous systems, composed of matrix porosity, fractures and karstic systems with even development of caves...

... pressure head. In this study numerical modelling of arched barricade of various thicknesses has been done using strain-softening material model for the SFRS shotcrete material. A hard rock mining scenario is simulated with a roadway of dimensions 5.5 m x 5.5 m existing at a depth of about 500 m...

... a geotechnical unstable zone at the Vazante underground mine, affected due to an excessive overbreak at the hanging wall and footwall of a stope mined below the level of the current work. Based on numerical modelling, a BEM stress analysis software is utilized to dimension a rib pillar in order to provide global...

... Abstract The mechanical behavior of rocks in basin and petroleum system modeling is usually simplified through an empirical law that relates burial depth and rock porosity, which may compromise the accuracy of simulations in less conventional scenarios. However, given the uniqueness...

... Abstract The effective stress principle of Biot's consolidation theory is first introduced into deformation reinforcement theory to model directional hydraulic fracturing. The unbalanced force considering the effective stress of fluid is derived and a more effective vector type criterion...

... Abstract Fracture density estimation is a challenge in discrete fracture network modeling. Among the many definitions used for fracture density, herein we consider the mean number of fracture centers per unit volume. This paper aims at presenting a geostatistical approach to estimate...

..., El Teniente Mine has developed a 3D numerical model of the whole mine and neighboring areas, which has evolved to cover a 720 km 2 and 8 km deep volume of rock. Once the model is properly adjusted, sub models can be easily extracted to study particular areas of interest. As mining advances...

... Abstract The quest to define the best mining layout has a direct relation with the cash generation of the enterprise and for that, is necessary that the geotechnical parameters that define the layout and verify the stability of the excavation are calibrated, and the model is as faithful...

... at mining depth and at the bottom of the nearby shaft was described being "bone-dry". upstream oil & gas displacement gob coal mining karacan permeability metals & mining modeling mining operation numerical modeling poroelastic reservoir characterization shaft bedding plane...

... encountered within the Devonian formations which included brittle and spall prone limestones, plastically yielding mudstones, and discrete creeping halite layers. A variety of characterization and design tools were implemented including analytical brittle spall analyses and numerical bonded block modeling...

... 2010 bolivia reinforcement infrastructure modeling figure 7 foundation superstructure displacement outcrop reservoir characterization antahuacana bridge determination compressive strength Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón...

..., FLAC3D (Fast Lagrangian Analysis of Continua), with a discrete element code, PFC3D (Particle Flow Code). Then, a similar approach is adopted for modeling microseismic events in the caprock. For this purpose, the underburden, reservoir and overburden layers are modeled by FLAC3D. A rather small section...

... the elements constituting the simulated medium. The use of appropriate contact laws associated to a near neighbor interaction feature provide the model the ability to reproduce fundamental characteristics of brittle rock behavior such as, for example, high values of the tensile to compressive strength ratio...

... Abstract This paper aims to simulate the spalling failure behavior in hard rock based on a self-developed numerical model, i.e. a rock discontinuous cellular automaton (RDCA). A crack initiation and propagation criterion is proposed based on the plastic strain, which is used to link...

...MODELING OF SHALES IN SALT-HYDROCARBON SYSTEMS *M.A. Nikolinakou, P.B. Flemings, M.R. Hudec Bureau of Economic Geology, The University of Texas at Austin Austin, TX, U.S.A (*Corresponding author: mariakat@mail.utexas.edu) KEYNOTE Innovations in Applied and Theoretical Rock Mechanics Editors...

... porous material equation matrix rock mechanics isrm13 modeling 13th international congress bulk pressure coal permeability MODELING OF CHANGE OF COAL PERMEABILITY INDUCED BY GAS ADSORPTION *J.L. Feng and C.J. Li State Key Laboratory for GeoMechanics and Deep Underground Engineering China...