... ABSTRACT: The Mohr-Coulomb model is still the most widely used constitutive model in soil and rock engineering for its generality, simplicity, and ease of calibration of material constants from routine experiments. The failure envelope evolves shear and tension failure. One non-physical...

... draupne shale interface deformation lab test stiffness poisson scenario constitutive model equation ARMA 21 1399 CO2-induced creep on Draupne shale and impact on cemented wellbore integrity Xiyang XIE SINTEF Industry, Trondheim, Norway Laura EDVARDSEN SINTEF Industry, Trondheim, Norway Pierre...

...ARMA 21-1607 A Compound Constitutive Model for Numerical Modeling of Salt and Potash Structures Chieslar, J. D., Ph.D. AES, Inc., P.O. Box 242, Piedmont, SD, 57769, USA Copyright 2021 ARMA, American Rock Mechanics Association This paper was prepared for presentation at the 55th US Rock Mechanics...

... the earthquake interaction on the slope. The 3D model was developed considering the spatial variation of the materials into the domain. The constitutive modeling of the materials includes elastoplastic constitutive models with linear-softening and rock tensile strength cutoff. The numerical results in 3D...

... ABSTRACT: Despite the overall consistency of chalk in terms of reservoir properties across Danish North Sea fields, most of the constitutive models were successfully applied to one single hydrocarbon field. This study aims at building a comprehensive geomechanical model capable of predicting...

... operating pressure change curve artificial intelligence horizontal displacement well spacing natural gas storage thickness characteristic natural language displacement interlayer operation cavity salt rock vertical displacement beijing operating pressure constitutive model stability...

... to scanlines taken across the surface of the discontinuity. Upstream Oil & Gas Patton joint roughness coefficient Barton discontinuity JRC constitutive model reservoir geomechanics Rock mechanics joint surface roughness photogrammetry Reservoir Characterization surface roughness JRC...

... transition, and rate-dependency often stem from the nature of it polycrystalline structure (Hansen, 2014). The numerical approaches for rock salt based on the macroscopic constitutive models inspired by the experiments and micromechanics of crystals have reached a level of success. The more consistent...

... 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...

.... In this paper, we consider the case in which the rock formation creeps radially into an unlined borehole. The behavior of the rock mass is modelled numerically using a Bingham viscoplastic constitutive model. The Bingham viscoplastic model is based on Bingham original model (1922) and Perzyna s overstress...

... these mechanical behaviors should be represented by certain kinds of comprehensive constitutive models. The elastic-perfectly plastic model and the Mohr- Coulomb failure criterion became a widely adopted constitutive model. Hajiabdolmajid et al., 2002 set up a cohesion weakening-friction strengthening (CWFS) model...

... mechanical changes, flow effects and thermal distributions due to different loading conditions on porous rock is given. Additionally, experimental work based on the theoretical differential equations of THM models is outlined, as well as different numerical studies based on constitutive models. Generally...

... laboratory creep tests and by comparing the resulting curve of creep with the Burger model fitting. Reservoir Characterization strength compression test constitutive model natural gas storage steady-state creep rate mechanical property micro-creep model power function salt cavern Wellbore...

... into sediment description is the first step towards simulating sediment response at the high stress levels and under the complex stress paths that characterize geologic systems. stress ratio geomechanical modeling dependency constitutive model reservoir geomechanics volumetric plastic strain basin...

... model visco-plastic strain damage constitutive model constitutive model 1. INTRODUCTION Salt rock has the features of low permeability, high ductility, micro-damage healing and water solubility [1, 2] and has become a highly ideal medium for storing natural gas [3-5]. Due to these features...

... support system response, and effects on adjacent structures. Under designing a support system often leads to catastrophic consequences as in the Nicoll Highway collapse, or the Xianghu Subway site. Therefore, choosing the most appropriate constitutive model and proper determination of the input parameters...

... ABSTRACT: We present a constitutive model for the anisotropic poroelastoplastic behaviour of deformable fractured porous media. The model is obtained through an upscaling procedure based on the method of volume averaging. Averaging is carried out over a Representative Elementary Volume...

... ABSTRACT: For a better prediction of petroleum reservoirs production behavior during its exploitation, it is necessary to establish appropriate constitutive model to represent the mechanical and hydraulic behaviors of these materials. The present work aims to contribute in establishing...

... ABSTRACT: Improved understanding of the mechanical behavior of shale is one of the important challenges in the geomechanics community as shale is often encountered in many energy and environmental engineering applications. A constitutive model, which is based on a combination of plasticity...

... in salt while drilling salt formations by using constitutive models for estimating borehole diameter. In addition, a parametric analysis is performed to consider the effect of the most important factors affecting salt creep on borehole closure. Finally, general recommendations are provided to well...