A comparison of reflection coefficients in porous media from 2D plane-wave analysis & spectral element forward modeling

Haorui Peng; Yanadet Sripanich; Ivan Vasconcelos; Jeannot Trampert

doi:10.1190/segam2018-2994819.1

A comparison of reflection coefficients in porous media from 2D plane-wave analysis & spectral element forward modeling

Haorui Peng^*
, Yanadet Sripanich
, Ivan Vasconcelos
, Jeannot Trampert

^*Corresponding author for this work

Research output: Contribution to conference › Paper › Academic

Abstract

The Biot theory provides a general framework for describing the seismic response of porous media. Proper boundary conditions must be specified for the following three cases: the elastic-poroelastic interface, the acoustic-poroelastic interface and the poroelastic-poroelastic interface for accurate modeling and inversion of seismic data. In this study, we first review the expressions for reflection coefficients for all three cases from plane-wave analysis. We subsequently benchmark the first two cases against spectral element method (SEM) forward modeling to verify and ensure consistency between finite-frequency wavelets. We show with numerical examples, that both methods lead to comparable results within frequency range between 5Hz and 80Hz, which is of relevance to exploration seismology.

Original language	English
Pages	3974-3978
Number of pages	5
DOIs	https://doi.org/10.1190/segam2018-2994819.1
Publication status	Published - 1 Jan 2019
Event	88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018 - Anaheim, United States Duration: 14 Oct 2018 → 19 Oct 2018

Conference

Conference	88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018
Country/Territory	United States
City	Anaheim
Period	14/10/18 → 19/10/18

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10.1190/segam2018-2994819.1

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Peng, H., Sripanich, Y., Vasconcelos, I., & Trampert, J. (2019). A comparison of reflection coefficients in porous media from 2D plane-wave analysis & spectral element forward modeling. 3974-3978. Paper presented at 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018, Anaheim, United States. https://doi.org/10.1190/segam2018-2994819.1

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title = "A comparison of reflection coefficients in porous media from 2D plane-wave analysis \& spectral element forward modeling",

abstract = "The Biot theory provides a general framework for describing the seismic response of porous media. Proper boundary conditions must be specified for the following three cases: the elastic-poroelastic interface, the acoustic-poroelastic interface and the poroelastic-poroelastic interface for accurate modeling and inversion of seismic data. In this study, we first review the expressions for reflection coefficients for all three cases from plane-wave analysis. We subsequently benchmark the first two cases against spectral element method (SEM) forward modeling to verify and ensure consistency between finite-frequency wavelets. We show with numerical examples, that both methods lead to comparable results within frequency range between 5Hz and 80Hz, which is of relevance to exploration seismology.",

author = "Haorui Peng and Yanadet Sripanich and Ivan Vasconcelos and Jeannot Trampert",

year = "2019",

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doi = "10.1190/segam2018-2994819.1",

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Peng, H, Sripanich, Y, Vasconcelos, I & Trampert, J 2019, 'A comparison of reflection coefficients in porous media from 2D plane-wave analysis & spectral element forward modeling', Paper presented at 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018, Anaheim, United States, 14/10/18 - 19/10/18 pp. 3974-3978. https://doi.org/10.1190/segam2018-2994819.1

A comparison of reflection coefficients in porous media from 2D plane-wave analysis & spectral element forward modeling. / Peng, Haorui; Sripanich, Yanadet; Vasconcelos, Ivan et al.
2019. 3974-3978 Paper presented at 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018, Anaheim, United States.

Research output: Contribution to conference › Paper › Academic

TY - CONF

T1 - A comparison of reflection coefficients in porous media from 2D plane-wave analysis & spectral element forward modeling

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AU - Sripanich, Yanadet

AU - Vasconcelos, Ivan

AU - Trampert, Jeannot

PY - 2019/1/1

Y1 - 2019/1/1

N2 - The Biot theory provides a general framework for describing the seismic response of porous media. Proper boundary conditions must be specified for the following three cases: the elastic-poroelastic interface, the acoustic-poroelastic interface and the poroelastic-poroelastic interface for accurate modeling and inversion of seismic data. In this study, we first review the expressions for reflection coefficients for all three cases from plane-wave analysis. We subsequently benchmark the first two cases against spectral element method (SEM) forward modeling to verify and ensure consistency between finite-frequency wavelets. We show with numerical examples, that both methods lead to comparable results within frequency range between 5Hz and 80Hz, which is of relevance to exploration seismology.

AB - The Biot theory provides a general framework for describing the seismic response of porous media. Proper boundary conditions must be specified for the following three cases: the elastic-poroelastic interface, the acoustic-poroelastic interface and the poroelastic-poroelastic interface for accurate modeling and inversion of seismic data. In this study, we first review the expressions for reflection coefficients for all three cases from plane-wave analysis. We subsequently benchmark the first two cases against spectral element method (SEM) forward modeling to verify and ensure consistency between finite-frequency wavelets. We show with numerical examples, that both methods lead to comparable results within frequency range between 5Hz and 80Hz, which is of relevance to exploration seismology.

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T2 - 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018

Y2 - 14 October 2018 through 19 October 2018

ER -

A comparison of reflection coefficients in porous media from 2D plane-wave analysis & spectral element forward modeling

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