... government reservoir characterization stability unbalanced force reservoir impoundment displacement stability analysis potential failure surface safety geology china government impoundment deformation reinforcement slope deformation water impoundment typical cross-section effective stress...

... of slope collapses that occur affecting the health and safety of miners and surrounding community. In rock mechanics, slope stability analysis and design has received significant attention in large scale mining to mitigate the risk of slope collapse but minimal implementation in artisanal and small-scale...

... ABSTRACT Geological discontinuities have a large impact on the rock mass behavior in underground excavations. Under low stress conditions, structurally controlled wedge failure is one of the most critical types of rock instability. The stability analysis, in this case, is essential to consider...

... capacity of the mud circulation, the excessive failed rock can cause stuck drill pipe or bottom-hole assembly. Sometimes, wellbore collapse can result in sidetracked holes and abandoned wells, which means a great loss in oil and gas industry. Therefore, wellbore stability analysis is vital to safe...

... angle. Noting that the abovementioned uncertainty of wellbore stability analysis is made based on the elastic solution to the stresses field around a borehole (Fairhurst et al. (1965)). However, it rarely applies the QRA approach to the wellbore stability of poroelastic medium. Besides, the previous...

.... The evaluation was conducted in three steps: (1) identification of potentially unstable rock blocks whose trajectory might reach the infrastructure, (2) seismic stability analysis to evaluate the potential of these rock blocks falling, and (3) rockfall trajectory analysis to evaluate the potential of falling...

... ABSTRACT: Underground gas storage using salt cavern is becoming popular due to the rising problem of the seasonal gas demand peaking. The salt cavern stability analysis is an indispensable part of the salt cavern design. The aim of the research is to study the stability of the two-well...

.... reservoir characterization equation of state metals & mining cavern complex reservoir dfn stability analysis discontinuity hydraulic fracturing orientation support design reservoir geomechanics unwedge dfn approach fracture stability application hong kong upstream oil & gas...

... data is acquired. knowledge management orientation artificial intelligence upstream oil & gas field mapping drone photogrammetry structural mapping point cloud major structure cloudcompare cni metals & mining stability analysis west domain & geotechnical slope...

... ABSTRACT: Three-dimensional slope stability analysis of open pit mines is carried out using Limit Equilibrium Method (LEM) of analysis and Finite Element Analysis (FEM). Finite Element analysis has the ability to find different critical regions with the maximum shear strain. However...

... the strength of the rock in neglecting the strengthening effect of the intermediate stress. In this study, the Mogi-Coulomb criterion which is a triaxial failure criterion is used to investigate the wellbore stability analysis. The rock is modeled with a strain hardening plastic material. The wellbore...

.... In the experiments the critical injection velocity for wormhole formation at minimum acid injection was obtained. Theoretically acidizing was analyzed by formulating the problem as reactive moving boundary Stefan type problem. Wormholing was analyzed through a linear stability analysis from the equilibrium state...

... in the underground limestone industry. Reservoir Characterization US government metals & mining hydraulic fracturing terrestrial laser reservoir geomechanics Upstream Oil & Gas Rock mechanics operational safety orientation stability analysis discontinuity rock mass instability discrete...

... of weight-on-bit and torque-on-bit. A linear stability analysis is conducted that leads to explicit expressions for the critical rotational speed(s), which is a function of the number of blades and the relative length of the partial blades. The stability maps indicate that the bits can have a better...

.... reservoir geomechanics stability analysis extraction Reservoir Characterization stope calibration metals & mining paste-fill material underhand mining stability boundary vibration mining method dynamic analysis paste-filled stope Upstream Oil & Gas Simulation peak particle velocity...

... ABSTRACT: Kinematic rock slope stability typically considers the primary loading force as a combination of the self-weight of the rock blocks themselves, and the water pressure in fractures. When major facilities exist or are planned near rock slopes, kinematic stability analysis also needs...

... of the intermediate principal stress, the Mogi-Coulomb criterion predicts lower values of the minimum required mud weight than does the Mohr-Coulomb criterion. Wellbore Design wellbore integrity reservoir geomechanics Reservoir Characterization borehole stability analysis elasticity breakout pressure...

... in an uncontrolled manner. Therefore, it is important to calibrate the model for correct fault movements. structural geology solve ratio mechanism curvier fault Upstream Oil & Gas Thickness sensitivity stability Reservoir Characterization fault thickness stability analysis fo value mesh...

... ABSTRACT: Stability analysis of weak rock slopes with daylighting bedding planes pose a challenge as a number of competing mechanisms of failure involving failure through the weak rock mass and sliding on the bedding plane are at play. A bedded weak rock slope was analyzed using limit...

... number has gave 20.3 and 8.6 stability numbers for the sidewall and hangingwall of the excavations respectively. Hydraulic radius results have shown that the excavations have hydraulic radius ranging from 4.6 to 7.4, depending on the dimensions of the excavation. Stability analysis also indicated...