Testing the algorithm for determining the velocity model of the upper part of the medium based on the first times arrivals
https://doi.org/10.18303/2619-1563-2024-2-4
Abstract
The results of testing the algorithm and the software module created on its basis are presented. The algorithm allows us to build a velocity model of the medium upper part using the times of the first arrivals of seismic signals related to refracted waves. The module implements two possibilities of these times determination. The first involves determining the times before the module is starting. The second implements the automatic determination of such times from the original seismograms using neural networks.
Keywords
velocity model of medium,
seismic exploration,
first arrival times,
seismic tomography,
accounting for velocity variations in the upper part of the section
Supporting agencies: The study was carried out as part of government assignment to the Russian Academy of Sciences in basic research, Project FWZZ-2022-0017
About the Authors
G. M. Mitrofanov
Trofimuk Institute of Petroleum Geology and Geophysics SB RAS; Novosibirsk State University; Novosibirsk State Technical University
Russian Federation
Russian Federation
Koptyug Ave., 3, Novosibirsk, 630090; Pirogova Str., 1, Novosibirsk, 630090; K. Marks Ave., 20, Novosibirsk, 630073
G. S. Chernyshov
Trofimuk Institute of Petroleum Geology and Geophysics SB RAS; Novosibirsk State University
Russian Federation
Russian Federation
Koptyug Ave., 3, Novosibirsk, 630090; Pirogova Str., 1, Novosibirsk, 630090
A. M. Kamashev
Trofimuk Institute of Petroleum Geology and Geophysics SB RAS; Novosibirsk State University
Russian Federation
Russian Federation
Koptyug Ave., 3, Novosibirsk, 630090; Pirogova Str., 1, Novosibirsk, 630090
A. A. Nikitin
Trofimuk Institute of Petroleum Geology and Geophysics SB RAS; Novosibirsk State University
Russian Federation
Russian Federation
Koptyug Ave., 3, Novosibirsk, 630090; Pirogova Str., 1, Novosibirsk, 630090
E. V. Mosyagin
Siberian Research Institute of Geology, Geophysics and Mineral Resources
Russian Federation
Russian Federation
Krasny Ave., 67, Novosibirsk, 630091
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Review
For citations:
Mitrofanov G.M., Chernyshov G.S., Kamashev A.M., Nikitin A.A., Mosyagin E.V. Testing the algorithm for determining the velocity model of the upper part of the medium based on the first times arrivals. Russian Journal of Geophysical Technologies. 2024;(2):4-16. (In Russ.) https://doi.org/10.18303/2619-1563-2024-2-4
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