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Keywords: evolution
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Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0103
... tip. This ultimately results in a slight increase of fracture opening and net pressure. hydraulic fracturing fracture tip time step algorithm cohesive zone Upstream Oil & Gas Garagash net pressure toughness fluid lag modeling viscosity Detournay evolution time evolution fluid...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0113
... was built to verify the coupled geomechanics-flow model and illustrate the nature of flow in a dynamic fractured formation. The corresponding damage evolution during production as well as the distribution of fracture permeability and formation pressure were obtained in the simulation. The results...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0072
... Upstream Oil & Gas tensor gas storage gas storage cavern international journal Artificial Intelligence reinforcement force stability PCE non-equilibrium evolution process long-term stability deformation stability deformation evolution salt rock natural gas storage plastic...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0064
... Artificial Intelligence heat extraction rate Wang Upstream Oil & Gas fluid temperature geothermal reservoir co 2 MPa evolution wellbore geothermal development Chen gravity effect hydraulic fracturing Simulation fracture network storage fracture permeability saturation...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0112
... and quartz. Scanning electron microscopy shows morphology of the minerals and pore network of the shale. Horizontal and vertical helium permeability measurements are conducted to analyze permeability evolution under different stress conditions. The samples record very low permeabilities at recreated...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0130
... ABSTRACT: In this paper, we integrate hydraulic fracture and geomechanical modelling with microseismic data to quantify deformation and stress field evolution as a predictive tool, as well as to provide a calibration and microseismic workflow. Our approach utilizes simulated fractures as well...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0214
... ABSTRACT: Characterization of rock permeability change during the fracture network evolution is critical to the design and assessment of geological storage facilities. Under geo-storage conditions, rock fractures propagate during damage processes and re-bond during healing. However, natural...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0234
... overburden. We will analyze the evolution of the plasticity in the overburden as a function of the dissolution of the lens. In this same class of problem, we will analyze the subsidence when the lens is close to the surface. The second case concerns the dissolution of an elastoplastic pillar of cylindrical...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0140
... permeability evolution affects the fault slip is generally poorly understood. Indeed, the fault permeability variation is a dominant parameter that regulates the fluid pressure field in time and space and also control the volume of fluid that can be injected in the fault. In a high permeability fault, fluid...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0442
... ABSTRACT: Nanoscale coal deformation will affect geomechanics response of coal with gas injection coupled with the external stress condition. In this study, u small-angle neutron scattering (SANS) is used to characterize the nanopore structure evolution of San Juan coal under hydrostatic gas...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0410
... & Gas 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...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0390
... linear relationship until residual failure where frictional sliding dominates. This important finding reveals, for a large range of pressures, that stress-damage evolution in triaxial space is variable with confinement. This could lead to plastic strain and stress dependent damage evolution laws for more...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0393
... ABSTRACT: This paper aims to estimate the long-term evolution of hydraulic properties of the rock mass. Because the evaluation of the fracture interface change over time under various hydro-thermal conditions is insufficient, the long-term evolution of permeability in a rock fracture has been...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0472
... Acoustic Emission data during the load relaxation phase, indicating readily observable progressive failure characteristics of the specimen. This result gives us confidence to investigate time dependent damage evolution in crystalline rocks with the new apparatus. (i) The degradation of underground...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1975
... natural gas storage cavern numerical simulation Upstream Oil & Gas cementation annulus cementation storage cavern casing and cementing contact surface load-bearing behaviour cavern convergence well integrity integrity cavern well strength rock salt operation evolution...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2075
... model for predicting the progressive evolution of damage zone around the wellbore drilled in naturally fractured shale formations. The Mohr Coulomb model has been employed to capture the plastic behavior of the naturally fractured shale formations, while strength reduction caused by the penetration of...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2011
... & Gas porosity hydrate deposit saturation gas saturation depressurization evolution wellbore integrity Wellbore Design wellbore stability Simulation effective stress stability Ulleung Basin geomechanical failure hydrate saturation possible geomechanical failure 1 1. INTRODUCTION Gas...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2882
... mechanical behavior and the damage mechanics of BST is investigated. Results reveal a strong influence of the applied CP on the strength of the material; where BST switches from brittle to ductile due to the presence of the CP. Damage controlled tests are exploited to quantify the evolution of plasticity and...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2132
... point and thereby become supercritical. Therefore, it is essential to define the evolution of coal permeability inclusive of this phase transition. This study presents experimental measurements of coal permeability in response to CO 2 / SCCO 2 , Helium (He) and Nitrogen (N 2 ) over the typical pore...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2117
... wellbore integrity rock eng brittleness compression test Reservoir Characterization evolution geothermal reservoir Wellbore Design thermally-induced micro crack variation treatment level Rock Mech mechanical property uniaxial compression stress-strain curve micro crack Eng Zhang...

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