Mono-component acoustic full waveform inversion with converted vector wavefields in vertically transverse isotropic media

Youngjae Shin; Ju Won Oh; Dong Joo Min; Jongha Hwang; Jun Woo Lee

doi:10.1190/segam2019-3215897.1

Mono-component acoustic full waveform inversion with converted vector wavefields in vertically transverse isotropic media

Youngjae Shin^*
, Ju Won Oh
, Dong Joo Min
, Jongha Hwang
, Jun Woo Lee

^*Corresponding author for this work

Major of Mineral Resources and Energy Engineering

Seoul National University

Research output: Contribution to journal › Conference article › peer-review

Abstract

Full waveform inversion (FWI) with acoustic approximation for VTI media have been performed with different modeling techniques. The decomposed equation with mono-component has an advantages of computational efficiency and no S-wave artifact in terms of forward modeling. However, the scattering pattern using single wave equation is quite different from the elastic scattering theory. In this abstract, we propose using vector wavefields to compute the gradient in the FWI algorithm. By converting the mono-component (pressure) source and receiver wavefields into the two-component particle displacements using the equation of motion on the staggered grids, we can obtain vector virtual sources to compute the gradient direction.

Original language	English
Pages (from-to)	1501-1505
Number of pages	5
Journal	SEG Technical Program Expanded Abstracts
DOIs	https://doi.org/10.1190/segam2019-3215897.1
State	Published - 2019.08.10
Event	Society of Exploration Geophysicists International Exposition and 89th Annual Meeting, SEG 2019 - San Antonio, United States Duration: 2019.09.15 → 2019.09.20

Quacquarelli Symonds(QS) Subject Topics

Earth & Marine Sciences
Geophysics
Engineering - Petroleum
Engineering - Mineral & Mining
Geology

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10.1190/segam2019-3215897.1

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@article{d8ea5f5afde4454cb9093c99404a71ea,

title = "Mono-component acoustic full waveform inversion with converted vector wavefields in vertically transverse isotropic media",

abstract = "Full waveform inversion (FWI) with acoustic approximation for VTI media have been performed with different modeling techniques. The decomposed equation with mono-component has an advantages of computational efficiency and no S-wave artifact in terms of forward modeling. However, the scattering pattern using single wave equation is quite different from the elastic scattering theory. In this abstract, we propose using vector wavefields to compute the gradient in the FWI algorithm. By converting the mono-component (pressure) source and receiver wavefields into the two-component particle displacements using the equation of motion on the staggered grids, we can obtain vector virtual sources to compute the gradient direction.",

author = "Youngjae Shin and Oh, \{Ju Won\} and Min, \{Dong Joo\} and Jongha Hwang and Lee, \{Jun Woo\}",

note = "Publisher Copyright: {\textcopyright} 2019 SEG; Society of Exploration Geophysicists International Exposition and 89th Annual Meeting, SEG 2019 ; Conference date: 15-09-2019 Through 20-09-2019",

year = "2019",

month = aug,

day = "10",

doi = "10.1190/segam2019-3215897.1",

language = "English",

pages = "1501--1505",

journal = "SEG Technical Program Expanded Abstracts",

issn = "1052-3812",

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TY - JOUR

T1 - Mono-component acoustic full waveform inversion with converted vector wavefields in vertically transverse isotropic media

AU - Shin, Youngjae

AU - Oh, Ju Won

AU - Min, Dong Joo

AU - Hwang, Jongha

AU - Lee, Jun Woo

PY - 2019/8/10

Y1 - 2019/8/10

N2 - Full waveform inversion (FWI) with acoustic approximation for VTI media have been performed with different modeling techniques. The decomposed equation with mono-component has an advantages of computational efficiency and no S-wave artifact in terms of forward modeling. However, the scattering pattern using single wave equation is quite different from the elastic scattering theory. In this abstract, we propose using vector wavefields to compute the gradient in the FWI algorithm. By converting the mono-component (pressure) source and receiver wavefields into the two-component particle displacements using the equation of motion on the staggered grids, we can obtain vector virtual sources to compute the gradient direction.

AB - Full waveform inversion (FWI) with acoustic approximation for VTI media have been performed with different modeling techniques. The decomposed equation with mono-component has an advantages of computational efficiency and no S-wave artifact in terms of forward modeling. However, the scattering pattern using single wave equation is quite different from the elastic scattering theory. In this abstract, we propose using vector wavefields to compute the gradient in the FWI algorithm. By converting the mono-component (pressure) source and receiver wavefields into the two-component particle displacements using the equation of motion on the staggered grids, we can obtain vector virtual sources to compute the gradient direction.

UR - https://www.scopus.com/pages/publications/85121849752

U2 - 10.1190/segam2019-3215897.1

DO - 10.1190/segam2019-3215897.1

M3 - Conference article

AN - SCOPUS:85121849752

SN - 1052-3812

SP - 1501

EP - 1505

JO - SEG Technical Program Expanded Abstracts

JF - SEG Technical Program Expanded Abstracts

T2 - Society of Exploration Geophysicists International Exposition and 89th Annual Meeting, SEG 2019

Y2 - 15 September 2019 through 20 September 2019

ER -

Mono-component acoustic full waveform inversion with converted vector wavefields in vertically transverse isotropic media

Abstract

Quacquarelli Symonds(QS) Subject Topics

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