DOI: https://doi.org/10.26089/NumMet.v17r445

Near surface reconstruction using the full waveform inversion method: a resolution analysis

Authors

  • K.G. Gadylshin
  • D.A. Neklyudov
  • I.Yu. Silvestrov

Keywords:

full waveform inversion method
SVD analysis
resolution capability
inverse dynamical problem
free surface
Rayleigh waves
elastic parameter coupling

Abstract

The effect of the Rayleigh wave on full waveform inversion (FWI) is studied. It is shown that the Born operator resolution is better when the Rayleigh waves are not taken into account. A numerical algorithm to analyze the influence of different parameters of the inverse dynamical seismic problem (such as source/receiver geometry, frequency range, elastic model parametrization, etc.) on the near-surface geological section reconstruction is proposed. As a demonstrative example, we show that the best elastic parameters for macrovelocity reconstruction via FWI for a subsurface observation system are P- and S-velocities and density.

New computational technologies

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Published

2016-11-17

Issue

Vol. 17 (2016): Issue 4.

Section

Section 1. Numerical methods and applications

Author Biographies

K.G. Gadylshin

Trofimuk Institute of Petroleum Geology and Geophysics of SB RAS
• Junior Researcher

D.A. Neklyudov

Trofimuk Institute of Petroleum Geology and Geophysics of SB RAS
• Senior Researcher

I.Yu. Silvestrov

Trofimuk Institute of Petroleum Geology and Geophysics of SB RAS
• Senior Researcher

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