.... wellbore design upstream oil & gas reservoir geomechanics reservoir characterization hydraulic fracturing breakout magnitude wellbore integrity hmax compressive strength zoback ghassemi borehole breakout strength hmin drilling-induced tensile fracture dif fracture mechanics mclennan...

... ABSTRACT: Rock fracture mechanics has been widely applied to understand the deformation and failure processes of rocks. As a significant parameter in rock fracture mechanics, mode I fracture toughness can be easily measured using semi-circular bend specimens. The objective of this research...

... find that the content of water-oil has significant influences on the fracture process zone. Upstream Oil & Gas Reservoir Characterization fracture mechanics fracture process zone specimen capillary pressure fracture characterization displacement critical ctod saturation mechanics...

... plays. The workflow combines the essential elements of fracture mechanics for rock mechanical applications to provide a more realistic vision of how a hydraulically induced fracture may grow in the vertical dimension. It incorporates the use of a density log, a log-derived stress profile along...

..., containing fracture energy and FPZ growth rate, is proposed as (equation) to interpret the experimental results. hydraulic fracturing AE energy fracture mechanics experiment deployment theoretical model dl dn Rock mechanics sandstone fracture energy FPZ propagation specimen Upstream Oil...

... grouting pressure to overcome these two consequences is crucial. The paper describes an application of Newton’s second law along with the principles of fracture mechanics to predict the minimal rock mass grouting pressure for Khairabad earth dam rock foundation in Iran. The results of quality control...

... reservoir geomechanics fracture mechanics Mining Science diameter tensile stress crack initiation specimen superposition apex mechanics Timoshenko tensile strength Brazilian disc ARMA 17-1047 Improved Brazilian test specimen: From flattened Brazilian disc to grooved Brazilian disc Wang Q.Z...

... of leaving upper 1.3 m of uncompacted material may lead to instability of reclaimed slopes that is not accurately simulated using traditional equilibrium limit methods. A numerical model for slope stability analysis based on the fracture mechanics approach is developed in this research. The interface slope...

... fracture tip fracture mechanics shale uncertainty quantification wellbore stimulation conductivity fracture finite element hydraulic fracturing cohesive zone model fracture network in-situ stress equation Simulation random variable effective conductivity propagation ARMA 16-734...

... Abstract: Three-point-bending and double-notch shear experiments are modeled using a continuum damage mechanics approach, and an explicit fracture mechanics approach, for both homogeneous and heterogeneous rocks. The local damage approach uses the Mazars isotropic damage model...

... parameters such as brittleness, plasticity and toughness among others are frequently referred in the literature to describe rock fracability. This paper discusses the validity of some of these parameters and emphasizes the fracture mechanics approach to characterize rock fracability based on the critical...

... published in rock fracture modeling, however, large amounts of the research have been published based on the experimental and mathematical models developed based on the elastic fracture mechanics. The first prediction model was established based on the maximum tensile stress theory by Evans [1]. Later...

... slopes under in situ stress conditions is modeled using a higher-order indirect boundary element method (known as displacement discontinuity method). The linear elastic fracture mechanics (LEFM) principles are assumed for brittle rock mass, and a mixed mode fracture criterion known as the maximum...

... is to investigate the mixed modes I (tensile) and II (shearing) fracturing mechanisms of Brisbane Tuff rock and prepared concrete samples using Semi-Circular Disc (SCD) and Cracked Chevron-Notched Brazilian Disk (CCNBD) specimen geometries. In order to create various mixed mode loading conditions, the chevron notch...

... the fracture pattern at the surface of the rock. Results are in good agreement with experimental observations. hydraulic fracturing fracture pattern displacement boundary condition Upstream Oil & Gas fracture mechanics international journal Artificial Intelligence finite element-based...

... Abstract Crack initiation, propagation and coalescence in rock material play an important role in geo-mechanics. Since, friction of rock joints surface is one of the most important phenomena in rock mechanics, consideration of crack surface friction in rock fracture mechanics is necessary...

... and understanding this complex process remains a challenging task. A coupled hydro-mechanical (HM) process has been implemented based on the existing fracture mechanics modeling code FRACOD (Fracture Propagation Code) where the Displacement Discontinuity Method (DDM) is used to simulate rock fracturing processes...

... Simulation fracture mechanics international journal stimulation hydraulic fracturing Rock mechanics discontinuity proceedings Contact Element interface specimen seismicity fracture assumption fracture propagation propagation representation hydraulic fracture mechanics ARMA 13-584 Multi...

... Abstract: Linear elastic fracture mechanics (LEFM) is used extensively in hydraulic fracturing design and evaluation. Several studies on nonlinear and plastic effects in hydraulic fracturing treatments are done, where the treatment results are not consistent with LEFM based models. Most...

... Abstract: Reproducing Kernel Particle Method (RKPM) is a mesh-free technology which has proven very useful for solving problems of elastic-plastic fracture mechanics. In this study, the stress intensity factor (SIF) at the crack-tip in a work-hardening material is obtained using RKPM. Ramberg...