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Keywords: shear failure
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1833
... aims in identifying their impact on shear failure in cement. A combination of analytical solutions and Finite Element Method (FEM) simulations are used to study the stress distribution around the wellbore and within the well system. Analytical solutions consist of a plane-strain approach where...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0137
... inclinations and angles. It can be observed that; this effect is more prone when the well azimuth is in direction or close to the maximum principal stress direction. On the other hand, the well is more stable (in terms of shear failure) when it is drilled in the direction of least principal stress. The optimum...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1525
... the integration of information from different sources and disciplines were able to estimate the shear failure induced on the borehole wall during drilling. reservoir geomechanics strength Rock mechanics borehole collapse Reservoir Characterization Upstream Oil & Gas pore pressure Wellbore Design...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1822
... angle hydraulic fracturing inclination angle reservoir geomechanics fracture inclination angle Upstream Oil & Gas experiment tensile stress stimulation shear failure stress difference fracture surface fracture propagation fracture geometry Reservoir Characterization fracture...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2070
... on sand production in moderately consolidated sandstones, i.e. sand production only occurs when confining pressure is high enough. X-ray CT scanning figures showed classic breakouts on the surface due to the shear failure. Correspondingly, seepage force from the radial inward flow was found...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2062
... as for calculation of the safe drilling window. Two case study wells for the Permian Basin (West Texas and New Mexico) are included in our study. Upstream Oil & Gas shear failure Reservoir Characterization failure location plane Wellbore Design elastic anisotropy stress concentration MPa wellbore...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2178
... elasticity, or the Lekhnitskii-Amadei anisotropic elasticity solution. Shear failure along the borehole wall can be modeled using two variants of the Jaeger plane of weakness model, using either the Mohr-Coulomb or the Mogi-Coulomb failure criterion for failure along planes other than a bedding plane...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1980
... Abstract: Anisotropy shear behaviors of shale are obvious as many bedding planes exist in shale. Determining the shear failure behavior of shale is essential for predicting fracture growth geometry and shear fracture permeability. This paper investigates the mechanical properties of bedding...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1769
... & Gas Reservoir Characterization cement chemistry strength stress state effective stress coefficient well integrity cement formulation cement lateral effective stress coefficient effective stress state effective cement stress shear failure effective stress subsidence interface society...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1119
... Oil & Gas consolidated sandstone experiment Symposium fracture sand control Fluid Dynamics viscosity flow in porous media Bohai oil field experimental result fracture pattern infiltration shear failure Pater Injection Rate propagation MPa hydraulic fracture permeability 1...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-554
... Dynamics cement compaction shear failure plastic strain inclination field life Model Result geomechanical model ovalization well deformation deformation chalk tyra well vertical strain 1. INTRODUCTION 1.1 Problem definition About five meters of maximum subsidence has occurred so far...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-801
... in this work, well completion design and operations can be improved to minimize sand production. sand control sand production Wang Modeling & Simulation well completion shear failure tangential stress Upstream Oil & Gas mechanism sand failure ohfp failure pattern integrity wellbore...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1357
... 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...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1349
... and implemented in the GEOSIM software. The analysis has shown that there is no increased risk of caprock failure for SAGDOX process compared to SAGD. The study has shown that the overlying Wabiskaw formation experiences shear failure during both SAGD and SAGDOX due to its low initial cohesion, friction angle...
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-2018-224
... Wellbore Design thermal cycling wellbore integrity casing and cementing Artificial Intelligence Upstream Oil & Gas cement failure initiation inner cement hoop stress shrinkage pore pressure shear failure cement cement-formation interface pressure testing Nygaard hoop stress cement...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0132
... permeability jumps have been observed in the deeper part of the basin after significant drawdown. The behavior has been explained by the desorption induced loss of horizontal stress, resulting in stress anisotropy and shear failure of coal. The permeability models currently used are capable of predicting coal...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0282
.... Results show that the jet penetration efficiency of swirling-round SC-CO 2 jet is higher than that of round SC-CO 2 jet. SEM observation presents: numerous crystal particles are snapped; inter-crystalline rupture occurs, generating large number of micro fractures; shear failure of crystal particles...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0163
... resolution, and the overall scanning speed. Upstream Oil & Gas information Switzerland resolution Reservoir Characterization mylonitic zone mechanical testing fracture shear failure x-ray micro ct spatial resolution waste management kaufhold particle Experimentally opalinus clay...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-014
... decreases, the mean confining stress of the rock around main fracture decreases quickly, while the pore fluid pressure in the natural fracture do not decrease simultaneously due to the relatively low permeability, which causes the Mohr's stress circle move to the left and natural fractures shear failure...

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