... on the Hoek-Brown criterion, which ignores the effect of the intermediate principal stress (i.e., the three-dimensional (3D) strength) and might underestimate the rock strength. In this regard, this paper presents a new analytical solution for deep circular tunnels in rock with consideration of disturbed zone...

... clusters. Different selected benchmarking problems are simulated using this THMC framework. The results show good agreement with the analytical solutions, which verifies the accuracy of the framework. INTRODUCTION Current applications of geotechnical engineering and geo-energy in the subsurface rely...

... pressure, and capillary entry pressure at every timestep to reveal more flow pattern details. We validate the model through a Darcy flow test and a fluid injection test based on existing Hele–Shaw tests. Numerical results agree well with the analytical solutions and experimental observations, confirming...

... ABSTRACT The isotropic homogenous assumption in the conventional Geertsma model is often contradicted by reality because the rock properties in the overburden are typically anisotropic and often can be quite different from the reservoir. Thus, we present an analytical solution that extends...

... and cementing cement sheath stress in-situ stress asia government hydraulic fracturing wall thickness jimsar area reservoir geomechanics young sheath analytical solution poisson cement poisson failure length equation full-well cement sheath contact pressure ARMA 23 549 Study on the integrity...

... which compares with analytical solution. The results show that the proposed heat conduction model can effectively capture the effect of cracks on heat conduction as well as the sudden temperature change across the cracks. The model can be used as a robust tool to study the whole process and basic...

... united states government metals & mining shear test shear test simulation strength normal stress shear stress static direct shear test numerical direct shear test analytical solution dynamic direct shear test geological subdiscipline jrc proceedings joint roughness coefficient mpa...

... reservoirs are not fully understood and require further research. fluid dynamics united states government geology upstream oil & gas flow in porous media modeling & simulation propagation geothermal industry wheeler analytical solution hydraulic fracturing geological subdiscipline...

... accuracy and versatility by comparing the numerical results with the analytical solutions. INTRODUCTION The poroelasticity theory studies the mechanical behaviour of the solid phase, or solid skeleton, and the fluid phase in the pore space of a saturated porous medium. The coupled process of fluid...

... recovery reservoir characterization co 2 wellbore integrity numerical result pore pressure production control equation analytical solution injection ghassemi geo numerical result porous medium reservoir geomechanics climate change international journal wellbore problem displacement...

...., 2003). Abousleiman and Nguyen (2005) established the analytical solution of dual-porosity based on the theory of poromechanics. The comparison with single porosity model illustrated that higher pore pressure was shown in fractured formation at early stage. Tran et al. (2011) established the analytical...

... the coupled model using Sneddon's analytical solution for fracture aperture distribution. Through three modeling cases, we discussed the hydraulic fracture branching mechanism: fluid leak-off at hydraulic fracture walls and the changes of Biot effective stress coefficient in the transverse direction after...

... upstream oil & gas porous medium international journal analytical solution distribution function lattice boltzmann method particle heat transfer characteristic complexity pressure difference cross section ARMA 21 1743 Study on heat transfer characteristics for fluid flow in porous media...

... and operations flow in porous media fracturing fluid displacement high fidelity hydraulic fracturing simulator upstream oil & gas dimension assumption finite element method equation aperture unconventional freedom literature perforation wellbore fluid dynamics simulation analytical solution...

... and the isotropy plane. We present an analytical solution for an elliptical HF in the toughness dominated regime and use it to benchmark our numerical solver. For a TI elastic material, we investigate HF growth for two different assumptions: isotropic material toughness or isotropic critical fracture energy...

... solutions for the uncertainty in a fracture intensity measurement. The Poisson distribution is used for modeling the uncertainty of a P 21 measurement. To validate the analytical solutions, this paper uses a commercial discrete fracture network (DFN) code, along with an in-house DFN code, to simulate P 21...

... with minimal human interaction. Comparisons with analytical solutions and deterministic model runs are also provided to verify that automation is an economical tool that can improve project efficiency. (i) define/validate design geotechnical properties; (ii) test the appropriateness of constitutive...

..., a numerical experiment of crack propagation induced by thermal stress is also given, and its results are compared with the experimental results. The simulation results agree well with the analytical solutions or experimental results, indicating that the proposed approach is effective for thermal cracking...

.... drilling operation hydraulic fracturing Directional Drilling orientation Upstream Oil & Gas fracture initiation analytical solution criterion hydraulic fracture initiation breakdown pressure window initiation longitudinal fracture wellbore integrity Wellbore Design longitudinal stress...

... for drilling mud; design of stimulation treatments; derivation of far-field stress state based on deformations observed at the wellbore wall, etc. These analyses all require the adoption of a model. A typical model adopted for this purpose is the simple 2D analytical solution. Alternative models may use...