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Keywords: volumetric strain
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1192
... properties of the rock near the excavation zone (Tsang et al., 2012). reservoir characterization microcrack contribution dilation directional damage reservoir geomechanics resistance damage growth stress state stress difference volumetric strain rock mechanics etna basalt mpa upstream...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1218
... and Schraufnagel, 1990). As a result of CH 4 desorption, coal matrix exhibit notable volumetric swelling/shrinkage (1~3% volumetric strain) (Hol and Spiers, 2012) and changes of the pore structures (Zhang et al., 2016). The adsorption-induced strain combined with the in-situ (uniaxial strain) boundary condition...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1217
... criteria for the rock including real-time Young's modulus, Poisson's ratio a nd compressional wave acquisition in addition to the volumetric strain. The outcome of the study is aimed at enabling the selection of the applicable unloading criterion based on sample and testing considerations including...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1731
... hydraulic fracturing coal seam gas artificial intelligence coal bed methane re-fracturing coalbed methane wellbore design reservoir simulation gas production high medium selection minimum horizontal principal stress structural geology volumetric strain qinshui basin reservoir characterization...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0252
... specimen interface coal seam gas complex reservoir adsorption volumetric strain adsorption stress international journal porous media Microstructure surface stress shrinkage deformation 1. INTRODUCTION The coupling between the adsorption of fluid molecules on pore surfaces and the mechanical...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0301
... on plastic yielding and the volumetric strain in these model simulations. The influence of the stress to strength ratio on the extension of the excavation damage zone due to cutoff construction is also examined. The mechanical response of the rock around the drifts showed that the extension of the excavation...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0410
... material property strength biaxial test international journal mechanical behaviour Reservoir Characterization stress path volumetric strain Rock mechanics sandstone evolution Hoek failure criterion rothbach sandstone strain localization theory 1. INTRODUCTION To describe the influence...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0389
... criteria. It was discovered that breakout width stabilization is governed by equivalent plastic shear strain threshold whilst breakout depth stabilization is governed by equivalent plastic shear strain and volumetric strain thresholds. “First-of-its-kind” correlations for shales were subsequently developed...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0506
... ABSTRACT: Gas sorption induced volumetric strain of coal is one of the primary geomechanics parameters in coalbed methane reservoirs. The apparent bulk volumetric strain model is proposed to define the coal volumetric deformations considering combined effects of gas sorption induced coal...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1648
... helium coefficient fracture volumetric strain mpa hydrostatic stress solid bulk modulus Upstream Oil & Gas Biot coefficient pore pressure coal sample international journal specimen hydrostatic stress gas ADSORPTION 1. INTRODUCTION The effective stress concept was first introduced...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1223
... geomechanics volumetric strain axial strain Reservoir Characterization irrecoverable strain AE event Symposium Upstream Oil & Gas acoustic emission deviatoric stress Wellbore Design tangent strain ratio cumulative ae event millistrain PPD positive dilatancy triaxial test maximum...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1049
.... Reservoir Characterization volumetric strain Miyazaki mechanical property flow assurance Simulation particle MPa constitutive model hydrate saturation Upstream Oil & Gas hydrate sand strength hydrate particle nonlinear constitutive model triaxial test hydrate deviatoric stress contact...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-106
... at the specific point of linear axial stress – axial strain curve and nonlinear axial stress – volumetric strain curve. The effect of nonlinearity is considered in the context of microfractures emerging and stably propagating in the rock after the stress state exceeds a critical one related to brittle fracture...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1324
... in porous media Upstream Oil & Gas Modeling & Simulation reservoir simulation oil sand well pair base case shear dilation volumetric strain permeability enhancement upper well water injection lower well porosity constitutive model mcm sand enhanced recovery steam-assisted gravity...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1163
..., and carbonate rock. Mineralogy, porosity, grain and bulk density were also measured, which are used to determine the sample heterogeneity and interpret the discrepancy of test results. Examples illustrated both zero and maximum volumetric strain criteria were not always applicable, especially for brittle rocks...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0957
... coefficient hydraulic fracturing strength porosity hydraulic fracture dual porosity case fractured reservoir srv calculation equation porosity case deformation Fluid Dynamics volumetric strain fracture surface fracture permeability 1. INTRODUCTION Hydraulic fracturing has been widely applied...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0101
... all of these constrained conditions, proposed the local impact of coal-gas interactions on permeability, and developed new relations between coal porosity and volumetric strains under conditions of variable stress. The cubic relation between porosity and permeability is then introduced to relate coal...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0308
... Oil & Gas cyclic loading Fluid Dynamics consolidation volumetric strain synthetic salt-rock sample salt grain microcrack proceedings mechanical behavior Microcrack Network Development grain contact load axis axial strain boundary salt cavern 1. INTRODUCTION Salt-rock is a viable...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0235
... to the absorbed gas quantity and organic matter content. structural geology volumetric strain Reservoir Characterization Upstream Oil & Gas pore pressure reservoir geomechanics Fluid Dynamics grain bulk moduli bulk moduli Pore Fluid MPa effective stress bulk modulus hydrostatic compression...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-127
... MPa reservoir geomechanics volumetric strain Grain compressibility sandstone aluminum sample Biot coefficient estimation effective stress shale sample 1. INTRODUCTION During deposition and diagenesis, cracks and pores are created in subsurface strata. These void spaces or porosity...

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