... to improve blast performance at a site. reservoir characterization fragmentation vibration knowledge management ppv yang metals & mining presplit scenario upstream oil & gas blasthole highwall calibration public diameter waveform blast fragmentation optimization displacement...

... journal compression asymmetry bryant dev invariant upstream oil & gas reservoir characterization plasticity engineering calibration evolution decohesion method material-point simulation ARMA 22-0452 Microphysics-informed tension/compression asymmetry of damage evolution in granular...

... calibration converge implementation rock salt viscoplasticity differential equation ARMA 22-0640 A New Constitutive Model for Rock Salt Viscoplasticity: Formulation, Implementation, and Demonstrations Benjamin Reedlunn1 1Sandia National Laboratories, Albuquerque, New Mexico, USA Copyright 2022 ARMA...

... ABSTRACT: As part of a preliminary evaluation of a deep geological repository for spent nuclear fuel, the hydraulic properties of a discrete fracture network were calibrated using published permeability data from comparable sparsely fractured crystalline rock. These permeability data exhibit...

... in the permeability response over the oil’s production’s period. The model calibration is performed through a numerical oil flow simulator, widely used in the petroleum industry and scientific works and the results were accurate. 1 INTRODUCTION Reservoir stimulation techniques e.g. acidizing, acid and hydraulic...

... was modelled as a material with a thickness of 50 mm and calibrated based on the mechanical properties of early-age fiber reinforced shotcrete obtained from available laboratory test results and empirical equations. The rock material near the modelled shaft was calibrated against the extensometer measurement...

... Safety and Health (NIOSH) developed a coal-mass model that is capable of capturing the effect of face cleat and the development of rib fracturing. This paper presents research that is part of a continued effort to calibrate the coal-mass model using monitoring data collected at field sites. This paper...

... seismic events, the use of a spatial-temporal point process model called ETAS (Epidemic Type Aftershock Sequences) is proposed. The model simulates a process in which each event produces its own offspring events. To use this seismic indicator, it is necessary to determine parameters for a calibration...

... ratio for the excavated drives. The numerical model is calibrated using the peak particle velocity data of blast vibrations obtained from the field test. The numerical results are in accord with the field observations in the mine. Limited damage to the drives is observed and the dynamic model confirms...

... ABSTRACT: The development of a constitutive model for hard rock goes hand in hand with conventional experiments, which provide information about the intrinsic failure properties of the material. To date most models are calibrated and validated using the macro stress-strain responses from...

... ABSTRACT: Parameter calibration is an indirect problem in which responses of a system are known, but the properties of the said system are not. Often, trial and error strategies are used for parameter calibration. However, they can be labor intensive and time consuming. Machine learning...

... (Agliardi and Crosta, 2003; Lan et al., 2007; Bourrier et al., 2009; Dorren, 2010; Leine et al., 2014). Nonetheless, these models have many parameters, and to achieve reliable simulations, these parameters need to be calibrated and validated, preferably using in-field experiments. Accura- te event...

... for the numerical modeling. The LS-SRM approach has advantages over bonded-particle-based and bonded-block-based SRM modeling approaches in terms of model construction, model calibration, and computation efficiency. Calibration of the mechanical properties of Zhenping marble is performed using the laboratory test...

... of travertines carbonates rocks. Upstream Oil & Gas calibration compression test constitutive elastoplastic model Reservoir Characterization travertine rock lade-kim model representation reservoir geomechanics elastoplastic model optimization travertine carbonate rock geomechanical...

... ABSTRACT: Tensile strengths from the direct tension test and the Brazilian test are compared for the purpose of material property calibration for DEM modeling. We show that size effect in direct tension is statistically insignificant. Sample size is not critically important in calibrating...

... the accumulation of micro-meso-scale fracture (damage) before the macro-fracture-propagation-stage of fracture coalescence. To this end, reliable sensor calibration is highly warranted to ensure the AE information is readily usable in moment tensor analysis. This paper presents and compares the calibration...

... frequency attenuation assessment amplitude ultrasonic pulse velocity measurement ultrasonic transducer construction materials wavelength specimen laser vibrometer calibration application vibrometer separation transducer 1. INTRODUCTION Concrete is a popular structural material used in Civil...

... principal strain components. A non-local measure of strain is used to avoid localization. Constitutive parameters are calibrated against published experimental data for concrete and shale. Simulations of three-point bending tests show that non-local enhancement is necessary and efficient to avoid mesh...

...1. INTRODUCTION Case studies for subsurface geomechanics offer many examples of the critical importance of reliable core data for the calibration of well and reservoir models. Unfortunately in many instances, measurements taken for the purpose of reducing key uncertainties are too scarce and come...

... in unconventional hydraulic stimulation software to evaluate the fracture behavior. A 1D anisotropic geomechanical model was performed based on well logs, updated with a suite of mechanical core tests, and finally, calibrated with the pressure interpretation of a mini fall off test on the first fracture stage...