... in failure mechanics associated with the mineral grains helped to determine the role of mineral character as a possible contributor to characterize burst-prone coals. To achieve the goal of this study, a series of numerical specimens were prepared in the 3DEC model as follows: first, the 3DEC modeling...

... ABSTRACT: Reliable prediction and uncertainty quantification of hydraulic fracture propagation behavior are crucial aspects of unconventional reservoir development, however, their implementations are largely restricted by the huge computational cost of the high-fidelity model simulations. We...

.... The proposed modeling considers the hydraulic fracture infinite and crosses the whole reservoir net pay. A new permeability stress-sensitive pseudo-pressure m ( σ′ ) is presented, and the solution of the NHDE is derived in terms of this function. NHDE is expanded in a first-order asymptotic series...

... ABSTRACT: An adaptive meshing technique is detailed which is suitable for large scale finite element modeling of solution mines. The resulting meshes of "bricks" are fully compatible (portable), that is no hanging nodes result, requiring multi-point constraints to satisfy continuity...

.... This sample showed creep hardening after applying three cycles of creep loading at 80°C. We extended a visco-plastic creep model that accurately reproduced room temperature experiments to account for the model's temperature dependence on visco-plastic parameters. Here, our modeling is focused on describing...

... to provide adequate, well-reservoir performance management and surveillance. This work proposes anew transient two-dimensional (2-D) analytical solution for modeling the oil flow in a permeability hysteretic pressure-dependent reservoir during alternating loading/unloading cycles. The nonlinear hydraulic...

... ABSTRACT: This study introduces the Progressive Improved Neural Operator (p-INO) framework, aimed at advancing machine-learning-based reduced-order models within geomechanics for underground resource optimization and carbon sequestration applications. The p-INO method transcends traditional...

... understand the law of hydraulic fracture propagation in the vertical direction, a coupled hydraulic-mechanic-damage model is established based on the phase field method to study the propagation of fractures in bedded shales. Based on this model, the effects of fracturing fluid viscosity and alternative...

... substitution and considering frequency-dependent velocity via Geertsma-Smit approximation, the study models fluid properties, and their interaction with the rock matrix, supported by case studies from the Bakken formation. Findings from this study reveal that gas-water systems are more frequency-dependent...

... ABSTRACT: Simulating the structural response of concrete and reinforced concrete structures to blast loading conditions is a challenging task, as it requires modeling the fracture and fragmentation processes in this composite material with reasonable computational efficiency for large scale...

... simulation for temperature and fluid pressure distributions, calculating point-source mechanical influence functions in layered poroelastic medium, and integration for geomechanical assessment at targets. Finally, we demonstrate the workflow and show results from a case study using realistic model parameters...

... and poor consolidation. In addition, the sampling protocols face the classical question of the scale effect on the properties of fault rocks. This study uses a numerical methodology to estimate rock properties of fault damage zones through geomechanical modeling based on the finite element method combined...

... for 21 types of drilling tools from four major manufacturers. This dataset was refined to five key wear states and processed using K-means and SMOTE algorithms to balance class distribution. The study's central outcome is a tool condition assessment model, with the Random Forest classifier showing...

... ABSTRACT: Hydraulic fracturing is one of the most widely used techniques adopted in the oil industry to enhance reservoir permeability. In traditional hydraulic fracture modeling, the numerical model simulates half of the fracture geometry by taking advantage of model symmetry. However...

... lower calcium-to-silica (C/S) ratio. Blending cements with a low C/S ratio have been shown to produce hydration products that are less susceptible to CO 2 attack. This study investigates the carbonation behavior of blended cements using thermodynamic modeling. Predicted carbonated phase assemblages...

... (Duranton & Puga, 2013). Controlling ground movements in underground excavation activities is crucial to prevent any potential damage to buildings and structures. Consequently, various studies have been conducted to control these movements using empirical equations, numerical models, and machine...

... ABSTRACT: This paper presents the implementation of an in-trench rockfall catchment system on a steep slope in the Coast Mountains of British Columbia. Using a combination of drone photogrammetry, digital geological mapping, change detection tracking, and numerical rockfall modeling, Stantec...

... ABSTRACT: This paper investigates fracture mechanics in 3D-printed porous replicas using phase-field modeling. The study focuses on uniaxial confined and point load test mechanical experiments, as well as fracture indentation tests, conducted on 3D-printed replicas as an economical alternative...

... ABSTRACT: In this paper we describe a study focused on modeling the dynamic wellbore behavior and assessing completion and near-wellbore damage in the context of carbon dioxide (CO 2 ) injection to depleted gas reservoirs. The results of the multiphase flow simulator in terms of pressure...

... ABSTRACT: The mechanism is investigated for frictional contact between a wear flat and rocks. A brief review focuses on the governing parameters of frictional contact on different types of rocks. Anisotropic damage is taken into account using an anisotropic elasto-plastic-damage model...