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Seismic Modeling and Imaging for Complex Structures

Seismic modeling expound the forward process of numerically simulating seismic waves through the earth model to generate seismic data. Forward modeling includes two steps which are velocity model building followed by numerical computation of seismic response. Forward modeling uses either ray tracing...

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Bibliographic Details
Main Author: A/P Subramaniam, Renuga Devi
Format: Final Year Project
Language:English
Published: Universiti Teknologi PETRONAS 2016
Subjects:
G Geography (General)
Online Access:http://utpedia.utp.edu.my/18219/1/FYP%20Dissertation_PG_16327.pdf
http://utpedia.utp.edu.my/18219/
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spelling my-utp-utpedia.182192018-11-22T14:40:29Z http://utpedia.utp.edu.my/18219/ Seismic Modeling and Imaging for Complex Structures A/P Subramaniam, Renuga Devi G Geography (General) Seismic modeling expound the forward process of numerically simulating seismic waves through the earth model to generate seismic data. Forward modeling includes two steps which are velocity model building followed by numerical computation of seismic response. Forward modeling uses either ray tracing or wave equation methods depending on the geological model dimension. In this study, a 2D acoustic wave equation method is used to model the salt dome. As for the accurate positioning of geological events, prestack depth imaging is immensely capable to produce a realistic image of the depth section which consist various geological structures. However, developments to this method are necessary to improve the accuracy of the output depth image in terms of image resolution and positioning. This research focuses on the effect of the parameters of prestack depth imaging on complex structures such as salt domes. We investigate the factors and their sensitivity that affect the accuracy of Kirchhoff depth migration. In the preliminary test, we run a forward modeling of a salt dome model with varying the acquisition geometry and migration aperture distance. Our results show that the consideration of acquisition parameter and migration aperture significantly improves the resolution and quality of the images. Universiti Teknologi PETRONAS 2016-01 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/18219/1/FYP%20Dissertation_PG_16327.pdf A/P Subramaniam, Renuga Devi (2016) Seismic Modeling and Imaging for Complex Structures. Universiti Teknologi PETRONAS. (Submitted)
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Electronic and Digitized Intellectual Asset
url_provider http://utpedia.utp.edu.my/
language English
topic G Geography (General)
spellingShingle G Geography (General)
A/P Subramaniam, Renuga Devi
Seismic Modeling and Imaging for Complex Structures
description Seismic modeling expound the forward process of numerically simulating seismic waves through the earth model to generate seismic data. Forward modeling includes two steps which are velocity model building followed by numerical computation of seismic response. Forward modeling uses either ray tracing or wave equation methods depending on the geological model dimension. In this study, a 2D acoustic wave equation method is used to model the salt dome. As for the accurate positioning of geological events, prestack depth imaging is immensely capable to produce a realistic image of the depth section which consist various geological structures. However, developments to this method are necessary to improve the accuracy of the output depth image in terms of image resolution and positioning. This research focuses on the effect of the parameters of prestack depth imaging on complex structures such as salt domes. We investigate the factors and their sensitivity that affect the accuracy of Kirchhoff depth migration. In the preliminary test, we run a forward modeling of a salt dome model with varying the acquisition geometry and migration aperture distance. Our results show that the consideration of acquisition parameter and migration aperture significantly improves the resolution and quality of the images.
format Final Year Project
author A/P Subramaniam, Renuga Devi
author_facet A/P Subramaniam, Renuga Devi
author_sort A/P Subramaniam, Renuga Devi
title Seismic Modeling and Imaging for Complex Structures
title_short Seismic Modeling and Imaging for Complex Structures
title_full Seismic Modeling and Imaging for Complex Structures
title_fullStr Seismic Modeling and Imaging for Complex Structures
title_full_unstemmed Seismic Modeling and Imaging for Complex Structures
title_sort seismic modeling and imaging for complex structures
publisher Universiti Teknologi PETRONAS
publishDate 2016
url http://utpedia.utp.edu.my/18219/1/FYP%20Dissertation_PG_16327.pdf
http://utpedia.utp.edu.my/18219/
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score 13.211869

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