... & gas reservoir characterization grasselli barton criterion casted discontinuity strength roughness discontinuity criteria shear strength equation casagrande rock mechanic compressive strength anisotropy ytec table 2 mpa rock engineering ARMA 22 0273 YTEC - Privada Characterization...

... ABSTRACT: Joint roughness is one of the most important factors which decide the shear behavior of a rock mass. Conventionally, it is quantified into a parameter called Joint Roughness Coefficient (JRC) by visual comparison between Barton’s standard profiles and line profiles of a joint. Since...

... 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...

.... Barton shotcrete landslide Grimstad tunnel Norway bhasin rock mass quality Upstream Oil & Gas feasibility study Himalaya rock mass classification Reservoir Characterization road tunnel Rock Engineering Challenge construction landslide area 1. INTRODUCTION Tunneling to bypass major...

... on the geometry of the boulder, which was then applied to a pseudo-static limit equilibrium analysis. The density of the granite rock and the residual friction angle were determined from laboratory tilt testing (Stimpson, 1981). The boulder was modeled as a jointed rock mass (Patton, 1966) and utilized the Barton...

..., and standard roughness profiles from Barton and Choubey, 1977, using the particle flow code PFC 2D . The results from the numerical shear tests under constant normal load (CNL) are compared with the predicted peak shear strength using Barton’s criterion and a back-calculation of the C value is carried out...

... mechanics: maximum shear strength is the limitation. hydraulic fracturing cliff height mountain wall Reservoir Characterization Soil mechanics degradation reservoir geomechanics strength Rock mechanics granite Upstream Oil & Gas Barton Poisson photograph Terzaghi shear strength...

... in current design practice are the following Rock Mass Classifications (RMC): RMR - Rock Mass Rating system (Bieniawski, 1973); Q - Tunneling Quality Method (Barton et al., 1974); U - Quantitative Ground Classification, based on contour displacement criterion (Regulation Guide, 1983). In order...

... fracture network (DFN) models which we use to rank the influence of in situ stress orientation and magnitude, pressure depletion and fracture surface roughness on network compressibility and permeability response. complex reservoir Barton Upstream Oil & Gas depletion hydraulic fracturing...

.... Introduction The Q-system for characterizing rock exposures, drill core and tunnels under construction was developed from rock tunneling and rock cavern related records and has been used by engineers across the world for over 40 years (Barton et al. 1974 and Barton & Grimstad, 2014). Single-shell B+S...

... performed laboratory experiments on several shale samples from the Barnett, Mancos and Pierre, to characterize their geomechanical properties. A multistage triaxial testing strategy was applied on saw-cut jointed shale samples to measure deformation properties, and then Mohr-Coulomb and Barton's shear...

... mobilization, giving potential permeability enhancement in the case of gas shales and critically stressed fracture sets in NFR. shale gas strength complex reservoir hydraulic fracturing Barton bakhtar roughness Rock mechanics Reservoir Characterization Upstream Oil & Gas petroleum...

... normal stress to extensive crushing of contact points at high normal stress. These results in high instantaneous friction angles at low levels of confinement and a curved peak shear strength envelope for both rock masses and rockfills. In this paper the Barton and Kj?rnsli [1] model for predicting...

...) and probabilistic approach for stability analysis of rock slopes. Barton models were used to model the behavior of rock discontinuities and the shear strain was considered as failure indicator of discontinuities. The proposed methodology was applied to a rock slope in Amasya, Turkey. The effect of basic friction...

... on the basis of two well-established parameters - Joint Condition and RQD. Recommendations for future development of more robust scales are presented. Artificial Intelligence Marino jcond 76 classification Barton GSI chart Reservoir Characterization jcond 89 shear strength tunnel strength...

... fractures. Among the models developed over the years, Barton's empirical model [1] has widely been used because it is easy to apply and includes several important factors of fracture properties. The shear displacement, peak, required to reach peak shear strength determines the secant stiffness of fractures...

... developed by Barton et al. [3] and rock mass rating developed by Bieniawski [4] are utilized for evaluation of modulus of deformation of rock mass. However, it is more common to relate mean value of a property such as modulus of deformation to the quality of rock mass as described by Barton [5] and used...

... reservoir geomechanics strength normal stress fracture characterization Barton Reservoir Characterization Upstream Oil & Gas different direction Artificial Intelligence displacement base friction angle constitutive model friction angle rock joint shear strength deformability...

... Upstream Oil & Gas roughness southern slope branch fault reservoir simulation lower failure surface traverse cross section fault material Barton slope failure main fault zone Fault Zone 1 1. INTRODUCTION A fault zone consists of fault core and damage zone, characterized by several slip...

... such as digital photographs or GPS basedcoordinate acquisition can be readily embedded in the tool if required as an option for onsite investigations. INTRODUCTION Two of the most widely used rock massclassification systems today are the Rock MassQuality Index (Q System) by Barton, Lien andLunde [1...