... united states government china government geology rock type geological subdiscipline alternative expression reservoir characterization expression asia government loading path strength criterion traditional loading path geologist wellbore design reservoir geomechanics criterion...

... criterion criteria flac3d natural gas storage criterion mpa strength criterion compressive strength storage cavern science international journal mudstone strength criteria modification generalized hoek-brown criterion plastic deformation ARMA 22 0023 Study on strength of rock salt...

... reservoir geomechanics upstream oil & gas borehole reservoir characterization wellbore design borehole radius hydraulic fracturing borehole pressure stability breakout tip area parametric study strength criterion noncircular borehole breakout semi-analytical solution original...

... ABSTRACT: Longmaxi shale rock is a typical anisotropic rock, the most common used strength criterion is the single plane of weakness (SPW) criterion for wellbore stability analysis of anisotropic formations. However, is this SPW criterion the optimal strength criterion for Longmaxi shale rock...

... & gas increment permeability effective stress strength criterion mechanics rock slope 1. INTRODUCTION A number of high arch dams have been designed and constructed in Southwest China in recent years, including Xiluodu arch dam (285.5m high), Xiaowan arch dam (292m high), Jinping-I arch dam...

... Abstract A new constitutive model is proposed based on the generalized three-dimensional (3D) Hoek-Brown strength criterion, which was proposed by Zhang and Zhu [1, 2]. The constitutive model involves a 3D multi-segment plasticity flow rule that can not only consider the effect...

... relation criteria test result Reservoir Characterization deviatoric plane strength data Strength Criterion strength triaxial compression application Ottosen criterion strength test result Lode angle extension ottosen peak strength criterion 1. INTRODUCTION Peak strength criteria for based...

... ABSTRACT: Hoek-Brown strength criterion has been used for analysis of a wide range of problems in rock mechanics and rock engineering. For intact rock, the criterion is mainly controlled by the strength parameter mi which is empirical and developed by trial and error. By representing intact...

... method strength parameter Category III marble Upstream Oil & Gas excavation tunnel marble mechanical property rock mass overburden depth hb criterion mechanical parameter Reservoir Characterization strength peak strength velocity band Strength Criterion 1. INTRODUCTION Based...

... ABSTRACT: In this paper, three three-dimensional (3D) versions of the Hoek-Brown strength criterion, respectively proposed by Pan and Hudson [1], Priest [2] and Zhang and Zhu [3], are briefly reviewed and evaluated. The evaluation shows that neither the Pan-Hudson criterion nor the Priest...

... ABSTRACT ABSTRACT: In engineering practice, a linear poroelasticity stress model in combination with a rock strength criterion is commonly used to determine a minimum mud weight for stable well drilling. Rock strength criterion therefore plays a key role in minimum mud weight prediction...

... geologic modeling Artificial Intelligence Barton joint surface Reservoir Characterization new equation roughness machine learning strength dimension geological modeling Upstream Oil & Gas roughness profile new peak shear strength criterion Strength Criterion shear strength...

... 1 INTRODUCTION ABSTRACT: In performing an elastoplastic analysis for a wellbore or tunnel, one must decide whether to use a 2D or 3D stress analysis and, if using a 3D analysis, whether to use a 2D or 3D strength criterion. This paper presents examples obtained with analytic and numerical...

... jointed rock mass under biaxial loading with its strength under axisymmetric loading. reservoir geomechanics criterion joint plane jointed rock mass dip angle orientation axisymmetric loading positive normal stress condition Strength Criterion Reservoir Characterization strength failure...