3-D acoustic-elastic full-waveform inversion and migration of marine VSP data from Norway

Zhaolun Liu; Jürgen Hoffmann; Frederik J. Simons; Jeroen Tromp

doi:10.1190/image2022-3750936.1

3-D acoustic-elastic full-waveform inversion and migration of marine VSP data from Norway

Zhaolun Liu, Jürgen Hoffmann, Frederik J. Simons, Jeroen Tromp

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

Abstract

We demonstrate an application of three-dimensional (3-D) acoustic-elastic coupled Full-Waveform Inversion (FWI) to deviated Rig-source Vertical Seismic Profile (R-VSP) data from the Fenja Field in Norway, to advance our understanding of subsurface structure. We perform 3-D Reverse-Time Migration (RTM) of the data using the inverted wave speed models. The RTM results show that the structures in our 3-D compressional speed (V_P) image are a better match with those obtained from surface seismic imaging, compared to the legacy 2-D ray-based migration image. The resolution of our shear wave speed (V_S) image is higher than that of the V_P image due to the smaller reflection angle of P-to-S converted waves compared to that of P-to-P reflections. Our V_S and density (ρ) images yield additional structural information.

Original language	English (US)
Pages (from-to)	797-801
Number of pages	5
Journal	SEG Technical Program Expanded Abstracts
Volume	2022-August
DOIs	https://doi.org/10.1190/image2022-3750936.1
State	Published - Aug 15 2022
Event	2nd International Meeting for Applied Geoscience and Energy, IMAGE 2022 - Houston, United States Duration: Aug 28 2022 → Sep 1 2022

All Science Journal Classification (ASJC) codes

Geotechnical Engineering and Engineering Geology
Geophysics

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10.1190/image2022-3750936.1

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title = "3-D acoustic-elastic full-waveform inversion and migration of marine VSP data from Norway",

abstract = "We demonstrate an application of three-dimensional (3-D) acoustic-elastic coupled Full-Waveform Inversion (FWI) to deviated Rig-source Vertical Seismic Profile (R-VSP) data from the Fenja Field in Norway, to advance our understanding of subsurface structure. We perform 3-D Reverse-Time Migration (RTM) of the data using the inverted wave speed models. The RTM results show that the structures in our 3-D compressional speed (VP) image are a better match with those obtained from surface seismic imaging, compared to the legacy 2-D ray-based migration image. The resolution of our shear wave speed (VS) image is higher than that of the VP image due to the smaller reflection angle of P-to-S converted waves compared to that of P-to-P reflections. Our VS and density (ρ) images yield additional structural information.",

author = "Zhaolun Liu and J{\"u}rgen Hoffmann and Simons, \{Frederik J.\} and Jeroen Tromp",

note = "Publisher Copyright: {\textcopyright} 2022 Society of Exploration Geophysicists and the American Association of Petroleum Geologists.; 2nd International Meeting for Applied Geoscience and Energy, IMAGE 2022 ; Conference date: 28-08-2022 Through 01-09-2022",

year = "2022",

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doi = "10.1190/image2022-3750936.1",

language = "English (US)",

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journal = "SEG Technical Program Expanded Abstracts",

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TY - JOUR

T1 - 3-D acoustic-elastic full-waveform inversion and migration of marine VSP data from Norway

AU - Liu, Zhaolun

AU - Hoffmann, Jürgen

AU - Simons, Frederik J.

AU - Tromp, Jeroen

PY - 2022/8/15

Y1 - 2022/8/15

N2 - We demonstrate an application of three-dimensional (3-D) acoustic-elastic coupled Full-Waveform Inversion (FWI) to deviated Rig-source Vertical Seismic Profile (R-VSP) data from the Fenja Field in Norway, to advance our understanding of subsurface structure. We perform 3-D Reverse-Time Migration (RTM) of the data using the inverted wave speed models. The RTM results show that the structures in our 3-D compressional speed (VP) image are a better match with those obtained from surface seismic imaging, compared to the legacy 2-D ray-based migration image. The resolution of our shear wave speed (VS) image is higher than that of the VP image due to the smaller reflection angle of P-to-S converted waves compared to that of P-to-P reflections. Our VS and density (ρ) images yield additional structural information.

AB - We demonstrate an application of three-dimensional (3-D) acoustic-elastic coupled Full-Waveform Inversion (FWI) to deviated Rig-source Vertical Seismic Profile (R-VSP) data from the Fenja Field in Norway, to advance our understanding of subsurface structure. We perform 3-D Reverse-Time Migration (RTM) of the data using the inverted wave speed models. The RTM results show that the structures in our 3-D compressional speed (VP) image are a better match with those obtained from surface seismic imaging, compared to the legacy 2-D ray-based migration image. The resolution of our shear wave speed (VS) image is higher than that of the VP image due to the smaller reflection angle of P-to-S converted waves compared to that of P-to-P reflections. Our VS and density (ρ) images yield additional structural information.

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U2 - 10.1190/image2022-3750936.1

DO - 10.1190/image2022-3750936.1

M3 - Conference article

AN - SCOPUS:85146733454

SN - 1052-3812

VL - 2022-August

SP - 797

EP - 801

JO - SEG Technical Program Expanded Abstracts

JF - SEG Technical Program Expanded Abstracts

T2 - 2nd International Meeting for Applied Geoscience and Energy, IMAGE 2022

Y2 - 28 August 2022 through 1 September 2022

ER -

3-D acoustic-elastic full-waveform inversion and migration of marine VSP data from Norway

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