Separation of frequency-dependent scattering and inelastic absorption by waveform inversion of VSP data constrained by well logs
https://doi.org/10.33623/0579-9406-2019-4-94-97
Abstract
The paper presents an approach to estimation of frequency-dependent attenuation of seismic waves propagating in the earth subsurface. The approach is based on the waveform inversion of vertical seismic profiling data acquired in a borehole. Incorporation of well log data (in particular, sonic and density logs) in the forward modelling routine allows for separation of two factors that cause frequency-dependent seismic attenuation. In particular, the inversion facilitates separation of 1D scattering versus inelastic absorption in the horizontally layered subsurface.
About the Author
A. S. Pirogova
Moscow State University;
Curtin University
Russian Federation
Russian Federation
Faculty of Geology, 119991, Moscow, GSP-1, Leninskiye Gory, 1;
Kent St., Bentley WA 6102, Australia
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Review
For citations:
Pirogova A.S. Separation of frequency-dependent scattering and inelastic absorption by waveform inversion of VSP data constrained by well logs. Moscow University Bulletin. Series 4. Geology. 2019;(4):94-97. (In Russ.) https://doi.org/10.33623/0579-9406-2019-4-94-97
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