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Keywords: stability analysis
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Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0091
... Upstream Oil & Gas failure criteria variation wellbore integrity wellbore stability analysis stability analysis elastic region Engineering criterion failure criterion Wellbore Design mogi-coulomb failure criterion Rock mechanics Zimmerman deformation critical wellbore pressure...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0334
... 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 of...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0484
... network DFN excavation probability hydraulic fracturing stability analysis discontinuity rock mass failure mechanism 1. INTRODUCTION Ground control instability issues are one of the main causes of accidents and fatalities in underground mining in the U.S. (MSHA, 2016). Within these ground...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2041
... 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...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2063
... paste-fill. reservoir geomechanics stability analysis extraction Reservoir Characterization stope calibration metals & mining paste-fill material underhand mining Upstream Oil & Gas Simulation peak particle velocity mining method dynamic analysis paste-filled stope...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2178
... failure criterion Upstream Oil & Gas shear failure stability analysis Zimmerman mohr-coulomb criterion intermediate principal stress anisotropy reservoir geomechanics borehole stability analysis elasticity breakout pressure principal stress anisotropic formation 1. INTRODUCTION Many...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2205
... complex reservoir calculation Dershowitz hydraulic fracturing stability analysis rock slope stability Reservoir Characterization Upstream Oil & Gas wedge stability wedge analysis mass failure identification reservoir geomechanics strength tensor assumption discrete fracture...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-788
... 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...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-080
... Characterization fault thickness stability analysis fo value mesh density metals & mining weak zone method mechanics weak zone slope stability analysis ubiquitous-joint method 1. INTRODUCTION Determining slope stability is a critical part of the design stage of mining and civil engineering...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1419
... Artificial Intelligence structural plane discontinuity rock mass Upstream Oil & Gas stability analysis Limit Equilibrium Method reservoir simulation attitude safety factor footwall slope Reservoir Characterization laboratory test rock slope finite difference method strength...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-221
... Design strength stability analysis hajdúszoboszló field szabo sand production shear failure proceedings alliquander pore pressure horizontal stress wellbore instability overburden stress prediction depth interval 1. INTRODUCTION 1.1. GEOLOGIC BACKGROUND The Pannonian Basin (Figure 1a...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-680
... stability 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...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0654
... results can provide us an overall understanding of the progressive damage and failure evolution of large-scale underground openings in bedded rock masses. 1. INTRODUCTION Reservoir Characterization stability analysis layered rock mass real time system abutment main powerhouse cavern...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0156
... state hydraulic fracturing stability analysis plane investigation DFN model strength parameter failure surface fluid modeling rock bridge percentage slope stability analysis granitoid rock mass potential failure surface Upstream Oil & Gas assessment discontinuity Persistence data...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0263
... Artificial Intelligence Reservoir Characterization pore pressure dotted curve tangential stress reservoir geomechanics stability analysis coefficient Poisson effective radial stress in-situ stress direction shale formation minimum in-situ stress direction solute mass fraction stress...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0394
... intermediate stress on the rock medium around the borehole, the study of the heat and pore pressure distribution in the rock medium and its effect on the stress field. We present an example of the stability analysis for the transversely isotropic Sasino and Paslek shale formations. Wellbore Design...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0292
... ABSTRACT: Tailings dams are designed to handle large volumes of waste material from mining operations, thereby their stability has primary importance for sustainability of the mine environment. This paper investigates two-dimensional stability analysis of recently raised condition of Eti...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-040
.... The failures highlight the three-dimensional nature of the potential failure due to blocks formed by the discontinuities and the influence of bench-face orientation on the likelihood for instability. Previous ARMA 16-XXXX Application of discrete fracture networks (DFN) in the stability analysis of...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-017
... energy loss performance function heat loss stability analysis coefficient multiple te cavern te cavern Abstract: In this paper, we present a performance evaluation process for the use of multiple thermal energy storage (TES) caverns for hot water storage. Two separate numerical...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-318
... Abstract: This study presents a numerical approach to account for the non-linear clay plasticity on wellbore stability analysis for deep water drilling. The numerical model considers the stress path dependent (anisotropic) strain-hardening/post peak softening behavior, which is typically...

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