.... This study proposes a methodology for assessing the damage zones widths using artificial neural networks (ANNs). The database used to train the ANNs was built considering several numerical models which adopt geomechanical parameters, fault length, and maximum displacements as input variables to determine...

... fault. The model presented in this study allows for solving the nonlinear hydraulic diffusivity equation (NHDE) with an oil source term. To approach this phenomenon, a new deviation factor is derived and coupled to a first-order series expansion. The proposed solution was calibrated by a finite...

... by their anisotropic nature due to layering. Therefore, isotropic modeling can lead to errors in stiffness estimations. The main objective of this study was to develop anisotropic rock physics modeling of the Bakken formation to assess the elastic behavior and determine the key parameters controlling the velocity...

... to casing damage in existing wells. Forecasting requires reliable geomechanical modeling of the reservoir and its surroundings. Classical analytical solutions are too simple, so numerical models are required. The rocks surrounding reservoirs are often anisotropic (like overburden shale...

... shale through laboratory and modeling studies. API fracture conductivity tests were conducted using 2% KCl on five locations within the Caney shale that consisted of selecting three brittle(reservoir) zones and two ductile zones. Confining pressures range from 1,000 psi to 12,000 psi at 210°F...

... also disrupt production and burden the pre-planned mine operations. The study for estimating pillar strength using numerical modeling could provide a pragmatic approach to designing future pillars affected by karsts. The shape and volume of the karst cavities inside the concerned pillar were...

...ARMA 22 757 Modeling the effects of hydraulic fracturing on borehole acoustic measurements Gallardo-Giozza, G., Espinoza, D.N., and Torres-Verdín, C. The University of Texas at Austin, Austin, Texas, United States Copyright 2022 ARMA, American Rock Mechanics Association This paper was prepared...

... into the mechanisms of damage for the material. The results show that the SEM-based microcharacterization of damage can explain the degradation in effective strength observed in the testing and can be accurately modeled using the presented methods. 1. INTRODUCTION Granular, also called "particulate," materials...

... into the model and survey six fault scenarios with various fault-zone structures and fault upper extents. We compare the modeled Coulomb stress changes against earthquake triggering thresholds obtained from a detailed in-situ stress model, and identify implausible and plausible scenarios. The plausible scenarios...

.... This study designs a hydraulic fracturing model in horizontal wells to extract hot water economically, creating high permeable artificial fractures. We aim to investigate the effects of varying fracture-cluster lengths, proppant, and frac fluid types, on hydraulic fracturing treatments using 2D and 3D...

... ABSTRACT: The paper describes analysis and modeling of dynamic experiments with 1-foot-size blocks of a transparent rock substitute, PMMA. During these experiments, 0.3-0.7 grams of explosive was detonated in the middle of a multilayered cubic block in single and double tamped wells. Numerical...

... machine learning optimization permeability modeling geosci chemical flooding methods reactivation injector injector location geomechanics simulation reservoir geomechanics simulation npev high island block co injector location reservoir characterization injection rutqvist comput...

... of overhanging cliffs and evaluates its design in challenging ground. An extension of a national highway case study for existing span of 7 m tunnel is studied. Numerical modeling is used to study the stability of road overhanging cliff. Different scenarios are modeled in consultation with the field practitioners...

... upstream oil & gas reservoir characterization mohanty equation implementation completion installation and operations algorithm munjiza hydraulic fracturing rock mech fdem equation of state dehghan banadaki fracture modeling eos jwl jones-wilkins-lee equation int...

... ABSTRACT: We present micromechanical modeling of an indentation experiment on Green River Shale with simultaneous X-ray micro-computed tomography of internal sample deformation that provides new insights into the ductile-brittle micromechanical behavior of shales relevant to proppant embedment...

...ARMA 22 170 Linking Microscale Processes to Macroscale Salt Creep With a New THMC Model Hu, M.* Lawrence Berkeley National Laboratory, Berkeley, CA, US Steefel, C.I. Lawrence Berkeley National Laboratory, Berkeley, CA, US Rutqvist, J. Lawrence Berkeley National Laboratory, Berkeley, CA, US...

... all relevant data (geology, logging records, drilling fluid characteristics, drill cuttings test results, and so on) of the A Oilfield. Based on the well data and seismic data, a set of analysis methods for the loss mechanism of fractured formations are established by the geomechanical modeling method...

...ARMA 21 1671 A Powerful Thermal-EDFM for Modeling Enhanced Geothermal System with 3D Complex Fracture Networks Sun, He The University of Texas at Austin, Texas, USA Yu, Wei Sim Tech LLC, Houston, Texas, USA Wu, Kan Texas A&M University, College Station, Texas, USA Sepehrnoori, Kamy The University...

... shale gas creep response shale reservoir geomechanics upstream oil & gas simulation complex reservoir modeling model parameter zoback borehole deformation creep deformation test data soft layer eng reservoir characterization wellbore design shale data comput shale...

...ARMA 21 1465 A Comprehensive Integrated Workflow for 3D Geomechanical Model Construction and Its Application in a Montney Unconventional Gas Play in Western Canada Basin Zhong Cai PETRONAS Research Sdn. Bhd., Bangi, Selangor, Malaysia John Cole Geological Consultant, Calgary, Alberta, Canada Ayon...