Multiscale geomechanical modeling taking into account the evolution of the microstructure of the geological media
https://doi.org/10.18303/2619-1563-2024-1-105
Abstract
The general concept of a multiscale modeling approach for solving geomechanics problems is presented. It is based on the solution of a system of poroelastoplasticity equations taking into account changes in macroparameters during the development of deformation as a result of the evolution of the internal structure of the geomedium under the influence of load. Macroparameters are refined by modeling the deformation of selected smaller-scale areas. A feature of the presented approach is the absence of a fixed mesovolume to clarify the parameters. This mesovolume is determined depending on the stress-strain state of the macroscopic region.
Keywords
rock physics,
geomechanics,
poroelastoplasticity,
numerical modeling,
multiscale approach,
effective properties,
micro/meso structure,
computation algorithm
Supporting agencies: The study was supported by the Russian Science Foundation, Project Nos. 19-71-10008 and 19-77-10062, and was carried out as a part of government assignment to the Russian Academy of Sciences in basic research, Project FWZZ-2022-0021.
About the Authors
A. V. Vershinin
Lomonosov Moscow State University; Schmidt Institute of Physics of the Earth RAS
Russian Federation
Russian Federation
1, Leninskie Gory, Moscow, 119992;
10, bld. 1, B. Gruzinskaya Str., Moscow, 123242.
K. M. Zingerman
Lomonosov Moscow State University; Tver State University
Russian Federation
Russian Federation
1, Leninskie Gory, Moscow, 119992;
33, Zhelyabov Str., Tver, 170100.
V. A. Levin
Lomonosov Moscow State University
Russian Federation
Russian Federation
1, Leninskie Gory, Moscow, 119992.
Yu. P. Stefanov
Trofimuk Institute of Petroleum Geology and Geophysics, SB RAS
Russian Federation
Russian Federation
3,Koptyug Ave., Novosibirsk, 630090.
M. Ya. Yakovlev
Lomonosov Moscow State University
Russian Federation
Russian Federation
1, Leninskie Gory, Moscow, 119992.
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Review
For citations:
Vershinin A.V., Zingerman K.M., Levin V.A., Stefanov Yu.P., Yakovlev M.Ya. Multiscale geomechanical modeling taking into account the evolution of the microstructure of the geological media. Russian Journal of Geophysical Technologies. 2024;(1):105-117. (In Russ.) https://doi.org/10.18303/2619-1563-2024-1-105
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