... heterogeneity (Suàrez-Rivera et al., 2002), and strength parameters (Mitaim et al., 2004). reservoir geomechanics microcrack failure mode critical cutter depth reservoir characterization scratch test particle failure mechanism transition strength cutter depth upstream oil & gas coefficient...

... flow in porous media reservoir geomechanics structural geology reservoir characterization well decommissioning casing and cementing wellbore integrity wellbore design reservoir simulation upstream oil & gas failure mode reservoir re-pressurization reservoir stiffness reservoir...

... instabilities during drilling. Also, observed instabilities like hole collapse may be used as guidelines for selecting barrier forming formations, in particular if the failure mode is recognized as ductile flow of the formation rather than localized breakouts. Here we show experimental data from rock mechanical...

..., microcracking behavior associated with failure modes is investigated. The simulated results show that the 3D-GBM can capture the strength properties and deformation behavior associated with the failure modes of salt rock. This model provides an alternative and promising method to deeply investigate the micro...

..., moderate and major. Next, numerical modelling was implemented to analyze the modes of rock failure around the underground openings which had led to FoG. Rocscience Software Package was used to simulate the stress-induced and structure-induced failure modes or a combination of both that had been observed...

... of a hydropower station to study the failure mode and overall stability of bedding rock slope under consideration of different weathering depth and mechanical parameters. The hydropower station is Chinese first oversea hydropower project but fully adopts the domestic design standards. The slope height is 80m~85m...

... of the biaxial device by Mishra and Arora, 2015. ARMA 18 1278 Investigation of the failure mode of intact rock in biaxial compression tests Garg, Prasoon West Virginia University, Morgantown, West Virginia, U.S.A. Pandit, Bhardwaj Indian Institute of Science, Bangalore, India, Mishra, Brijes West Virginia...

... in geometry. The failure mode of the joint specimen under compression-shear loading can be classified into four types: coplanar shear failure, shear failure along the joint plane, shear failure along the shear stress plane and similar integrity shear failure. The joint dip angle has a decisive effect...

.... By comparing results in 200 group and results in 400 group, we found that increasing heating temperature helps intensify the cooling induced damage and improve corresponding property changes. SEM results indicate that the inter-granular cracking is the primary failure mode during heating and cooling cycles...

...-shear failure mode in seismic dynamic loading is also researched at last. 1. INTRODUCTION Upstream Oil & Gas seismic wave rock slope amplification coefficient failure mode stability slope crest Earthquake boundary jointed rock slope PGA amplification coefficient Reservoir...

... in the fields. Upstream Oil & Gas failure mode sandstone block laboratory experiment Reservoir Characterization Simulation Castlegate sandstone anisotropic stress loading condition deformation structural geology triaxial compressive test sandstone hole failure stress condition Wellbore...

... participation in the failure mode, according to this a small volume of rock containing veinlets lees than 1mm is considered to be representative of the intact rock. The structural description of the tested samples pointed out four typical failure types and three of them can be considered valid results...

... properties than shear stiffness. Further analyses from the micro perspective are conducted by looking at the contact force, the distribution of different types of micro cracks, and the particle displacement to show the failure modes due to the variation of friction coefficient. The reduction of friction...

... a nonlinear, staggered, heat-transfer-stress analysis for both 2-dimensional and 3-dimensional models is presented. The analysis simulates and evaluates the sealing properties of the cement and calculates the chance that one or more of the failure modes occurs. In the analysis both the construction phases...

... sawtooth rock joint normal stress condition mode iii reservoir geomechanics sawtooth interface simulation result crack propagation strength rock joint upstream oil & gas sawtooth angle failure mode structural geology direct shear test shear strength shear resistance rock...

...1. INTRODUCTION A rational analysis of the stability of a blocky rock mass requires the analyses of the stability of three- dimensional rock blocks that exist in the rock mass assuming all reasonable failure modes. For rock masses under relatively low stresses, their behavior is often controlled...

... and laboratory testing results (if available), when used as input parameters to analyze the rockmass behavior or failure mode, leads to uncertainty in not just within the continuum of degrees to which a particular failure mode will occur, but also to uncertainty in the failure mode itself. DSC claims occur when...

..., the strength of the rock is lower than the strength predicted by the JPW model. shale gas Pariseau model bedding angle prediction thin-section image complex reservoir strength weak plane Bossier shale Vaca Muerta shale reservoir geomechanics Upstream Oil & Gas mudstone failure mode...

... used deterministic approach employing only the mean rock joint orientations. The comparison reveals that deterministic method generally gives a conservative estimation of the largest unstable block volume. However, while only a single failure mode of rock block can be identified from the deterministic...

... Mechanics (ISRM) and lesser number considered samples having non-standard slenderness ratios [6]. Also, despite the number of studies in this regard the influence of size on the failure modes is lesser known and further studies are required. To this end, a series of uniaxial compressive tests was undertaken...