PHYSICAL MODELING OF THE ELASTIC WAVES REFLECTION FROM THE BOUNDARY WITH LOW-VELOCITY AZIMUTHALLY ANISOTROPIC MEDIUM
https://doi.org/10.18303/2619-1563-2019-1-60
Abstract
The physical modelling of elastic waves reflected from the boundary between the water and the model of low-velocity azimuthally anisotropic medium was carried out. The model of anisotropic medium was made using 3D printer. The results of experiments showed that the reflection coefficients are practically independent from the azimuth at the angles of incidence less than 25°. At larger angles of incidence, the azimuthal dependence of the reflection coefficients is observed, which is most pronounced at azimuths from 45° to 75°. The results of measurements in the layering direction are in good agreement with the theoretical reflection coefficients for the boundary of isotropic media.
About the Authors
K. V. Fedin
Trofimuk Institute of Petroleum Geology and Geophysics SB RAS; Novosibirsk State University; Novosibirsk State Technical University
Russian Federation
Koptyug Avenue, 3, Novosibirsk, 630090; Pirogova Str., 2, Novosibirsk, 630090; 630073, Novosibirsk, Karl Marx Avenue, 2
Russian Federation
Koptyug Avenue, 3, Novosibirsk, 630090; Pirogova Str., 2, Novosibirsk, 630090; 630073, Novosibirsk, Karl Marx Avenue, 2
Yu. I. Kolesnikov
Trofimuk Institute of Petroleum Geology and Geophysics SB RAS; Seismological Branch of the Federal Research Center of Unified Geophysical Service RAS
Russian Federation
Koptyug Avenue, 3, Novosibirsk, 630090; Koptyug Avenue, 3, Novosibirsk, 630090
Russian Federation
Koptyug Avenue, 3, Novosibirsk, 630090; Koptyug Avenue, 3, Novosibirsk, 630090
R. N. Beysembaev
Trofimuk Institute of Petroleum Geology and Geophysics SB RAS; Novosibirsk State University
Russian Federation
Koptyug Avenue, 3, Novosibirsk, 630090; Pirogova Str., 2, Novosibirsk, 630090
Russian Federation
Koptyug Avenue, 3, Novosibirsk, 630090; Pirogova Str., 2, Novosibirsk, 630090
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Review
For citations:
Fedin K.V., Kolesnikov Yu.I., Beysembaev R.N. PHYSICAL MODELING OF THE ELASTIC WAVES REFLECTION FROM THE BOUNDARY WITH LOW-VELOCITY AZIMUTHALLY ANISOTROPIC MEDIUM. Russian Journal of Geophysical Technologies. 2019;1(1):60-71. (In Russ.) https://doi.org/10.18303/2619-1563-2019-1-60
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