Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Vladimir Tcheverda"'
Autor:
Vladimir Tcheverda, Kirill Gadylshin
Publikováno v:
Geosciences, Vol 11, Iss 2, p 76 (2021)
The depth velocity model is a critical element for providing seismic data processing success, as it is responsible for the times of waves’ propagation and, therefore, prescribes the location of geological objects in the resulting seismic images. Co
Externí odkaz:
https://doaj.org/article/47bb3578f05547a89099c5fa3bdf146d
Publikováno v:
Geosciences, Vol 8, Iss 12, p 476 (2018)
Computation of Common Middle Point seismic sections and their subsequent time migration and diffraction imaging provides very important knowledge about the internal structure of 3D heterogeneous geological media and are key elements for successive ge
Externí odkaz:
https://doaj.org/article/37f5ca3a720244458575c959fe616867
Publikováno v:
Computers & Mathematics with Applications. 82:200-211
We present an algorithm for numerical simulation of electric current in rock samples and numerical upscaling of heterogeneous samples’ electrical resistivity (conductivity). The solver is oriented on solving strongly heterogeneous problems so that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fa793b46c4a4e3f230c677518003d78
https://doi.org/10.1016/j.camwa.2020.11.005
https://doi.org/10.1016/j.camwa.2020.11.005
Publikováno v:
Geophysical Prospecting. 67:1256-1270
The paper presents 3D diffraction imaging based on the spectral decomposition of a different combination of selective or partial images. These images are obtained by the pre‐stack asymmetric migration procedure, which is weighted data summation. Sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a37d32df036bf3c41e23a318182cb5d8
https://doi.org/10.1111/1365-2478.12772
https://doi.org/10.1111/1365-2478.12772
Autor:
Aleksandr Korolev, Kirill Gadylshin, Kirill Starkov, Vladimir Tcheverda, Maksim I. Protasov, Aleksey Shevchenko, Dmitry Neklyudov
Publikováno v:
Interexpo GEO-Siberia. 2:181-190
Full Waveform Inversion in its traditional formulation is nothing else but finding the minimum of the objective functional, that characterizes L2 difference between acquired and simulated wave fields. The accumulated experience proves the necessity o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55228acb05fe853703dd8509ca0c37a8
https://doi.org/10.33764/2618-981x-2019-2-3-181-190
https://doi.org/10.33764/2618-981x-2019-2-3-181-190
Publikováno v:
Scopus-Elsevier
Time-lapse seismic monitoring is one of the critical technologies providing the active exploration of hydrocarbon deposits. In desert environments, many challenges are complicating its practical application. The paper deals with one of them – chang
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef74b113e0803a34ce9a9a21f6f04dde
https://doi.org/10.1016/j.soildyn.2018.09.043
https://doi.org/10.1016/j.soildyn.2018.09.043
Autor:
Andrey Bakulin, Vladimir Tcheverda, Maxim Dmitriev, Ilya Silvestrov, Dmitry Neklyudov, Kirill Gadylshin, Maxim Protasov, Victor Dolgov
Publikováno v:
First Break. 36:121-126
Modern land seismic data acquisition is moving from sparse grids of large source/receiver arrays to denser grids of smaller arrays or point-source, point-receiver systems. Large arrays were designed to attenuate ground-roll and backscattered noise an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f7253661debefacd0e7f36f88b6bda9
https://doi.org/10.3997/1365-2397.n0143
https://doi.org/10.3997/1365-2397.n0143
Publikováno v:
Computational Science and Its Applications – ICCSA 2021 ISBN: 9783030866525
ICCSA (1)
ICCSA (1)
Seismic surveys in the vast territory of Eastern Siberia are carried out in seismic and geological conditions of varying complexity. Obtaining a high-quality dynamic seismic image for the area of work is a priority task in the conditions of contrasti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::100d9a1a3360f5e47e3a1b27122970e5
https://doi.org/10.1007/978-3-030-86653-2_37
https://doi.org/10.1007/978-3-030-86653-2_37
Publikováno v:
Euro-Par 2019: Parallel Processing Workshops ISBN: 9783030483395
Euro-Par Workshops
Euro-Par Workshops
In this paper, we propose and study the hybrid (MPI and OpenMP) parallelization for our novel approach to 3D numerical simulation of elastic waves with Krylov-type iteration method. The quality of the parallelization is justified by weak and strong s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::262930a62f8599239001028658e56335
https://doi.org/10.1007/978-3-030-48340-1_54
https://doi.org/10.1007/978-3-030-48340-1_54
Publikováno v:
GEOPHYSICS. 83:T333-T344
The efficiency of any inversion method for estimating the medium parameters from seismic data strongly depends on simulation of the wave propagation, i.e., forward modeling. The requirements are that it should be accurate, fast, and computationally e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b3db7c54a8c137c597144bdda98a72d
https://doi.org/10.1190/geo2017-0710.1
https://doi.org/10.1190/geo2017-0710.1