Application of Truncated SVD Method to Regularize the Inverse Dynamic Seismic Problem

A. Vasilenko

doi:10.3997/2214-4609.202053077

Application of Truncated SVD Method to Regularize the Inverse Dynamic Seismic Problem
By A. Vasilenko¹
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Affiliations: ¹ Trofimuk Institute of Petroleum Geology and Geophysics SB RAS (IPGG SB RAS)
Publisher: European Association of Geoscientists & Engineers
Source: Conference Proceedings, Saint Petersburg 2020, Nov 2020, Volume 2020, p.1 - 5
DOI: https://doi.org/10.3997/2214-4609.202053077

Abstract

Summary

One of the statements of the inverse dynamic seismic problem is to find a velocity model of an elastic medium from the data recorded during field work. To solve this problem, the full waveform inversion method is used, which consists in minimizing the functional that measures the difference between observed seismic data and modelled ones. Minimization is reduced to an iterative process, which involves solving an algebraic system of equations. The matrix of this system turns out to be ill-conditioned. Thus, for its inversion it is necessary to apply regularization, which is based on truncated SVD.

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2024-04-16

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References

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Application of Truncated SVD Method to Regularize the Inverse Dynamic Seismic Problem

Conference Proceedings 2020, 1 (2020); https://doi.org/10.3997/2214-4609.202053077

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Application of Truncated SVD Method to Regularize the Inverse Dynamic Seismic Problem

Abstract

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The natural combination of full and image‐based waveform inversion

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Laboratory measurements of guided‐wave propagation within a fluid‐saturated fracture