... & medicine geological subdiscipline stress state upstream oil & gas plane strength maximum shear stress case 3 equation case 2 parabola principal direction ellipse geology reservoir geomechanics blue circle model parameter orthotropic strength parameter zx plane pariseau case 1...

... operational parameters such as injection rate and pressure and the change in stress. Current methods of estimating the change in stress require choosing the type of constitutive model and the model parameters based on core, log, and geophysical data during the characterization phase, with little feedback from...

... hydraulic fracturing prediction reservoir characterization ml model dataset application model parameter fracture simulation ARMA 23-315 A Machine Learning based proxy model for the rapid prediction of hydraulic fractures Varun Gupta, Alexandros Solomou, Padmanabh Limaye, Gauthier Becker, Abinesh M...

... three different gas shale formations, namely, Haynesville, Eagle Ford, and Barnett. Using three different sets of model parameters, we conduct numerical simulations of borehole closure in shale formations to investigate the impact of material-level creep responses on time-dependent deformation processes...

... to mathematical inequalities rather than hard constraints on model outcomes. A system for scoring models based on their compliance with each type of constraint was developed and provided the basis for model inversion. The inversion scheme solves for unknown model parameters by maximizing the weighted sum...

... tomography for the core scale and results of FMI and UBI for log scale. Fractures at the seismic scales are inserted in the Rock-Physics model based on the results provided by the geomechanical modeling. At each scale a probabilistic solution for the model parameters is obtained. reservoir...

... parameter for isotropic distribution of microcracks in transversely isotropic medium. A Monte Carlo simulation is performed to quantify the uncertainty in the model response stemming from uncertainties associated with model parameters at different length scale. scaling method Reservoir...

... the rockburst intensity category among three rockburst criteria. The WinBUGS software was used to compute the posterior predictive distributions of the model parameters and the deviance information criterion (DIC) corresponding to the models. The DIC and the percentage of correctly predicted rockburst category...

... results. In addition, a parametric study is performed to discern the sensitivity of the lattice model parameters on the macroscopic mechanical properties of rock. Stress–strain curves are affected by confining pressure and the post-peak response exhibits a typical brittle-ductile transition with plastic...

... magnitude. geothermal reservoir model parameter Reservoir Characterization temperature distribution Dieterich seismicity perturbation hydraulic fracturing injection model seismicity rate semi-analytical approach earthquake nucleation stress change Upstream Oil & Gas time-dependent...

... challenge associated to the coupled flow-geomechanics models is the inherent uncertainty associated with model parameters, which stems from the always-difficult description of complex geological structures in the subsurface. In addition, for problems where seismicity could be potentially associated to a CO...

..., is proposed. The required material and model parameters are identified using an optimization procedure, based on experimental data. The proposed model for intact rock is validated for different types of intact rock by numerical simulation of laboratory experiments, i.e. triaxial compression tests at various...

... model parameter Reservoir Characterization Artificial Intelligence invariant interaction term fiber symmetry elastic property stiffness constraint tensor equation of state constitutive theory information experiment reduction transverse isotropy matrix anisotropy ARMA 13-656...

... Standard Deviation borehole Injection Rate fracture deformation model parameter tilt signal dip direction ARMA 09-100 Tilt Monitoring of Hydraulic Fracture Preconditioning Treatments Chen, Z. R. CSIRO Petroleum Resources, Bayview Avenue, Clayton, VIC 3168, Australia Jeffrey, R. G. CSIRO Petroleum...

... Target Value back analysis calculation Rock mechanics information loading branch load plate model parameter identification procedure function value algorithm loading noise rock mass numerical model plate load test ARMA 08-126 Back-analysis of elastic properties of the ground using data...

... pure-shear failure mechanism Trifu location error model parameter evaluation inversion pillar tensor inversion decomposition microseismicity agreement equation triaxial accelerometer failure mechanism RockMechanics/nthe NabonalInterest,Elsworth,T nucc& Heasley (eds), ¸2001 Swets& Ze...

... be carried out in a relatively straiõhtforward manner usinõ type-curve analysis. In the case of more complicated reservoir õeometries, the number of model parameters increases, and the ability to invert the data to extract meaninõ- ful values for these parameters becomes pro- õressively more difficult...