Target-oriented Gaussian beam migration using a modified ray tracing scheme

Abstract For large-scale 3D seismic data, target-oriented reservoir imaging is more attractive than conventional full-volume migration, in terms of computation efficiency. Gaussian beam migration (GBM) is one of the most robust depth imaging method, which not only keeps the advantages of ray methods...

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Autores principales:	Rui Zhang, Jian-Ping Huang, Su-Bin Zhuang, Zhen-Chun Li
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2019
Materias:	Gaussian beam migration Target-oriented imaging Illumination Ray tracing Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/c13d9fd8c7224c8eb5900ae6df18a17a
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spelling	oai:doaj.org-article:c13d9fd8c7224c8eb5900ae6df18a17a2021-12-02T11:38:17ZTarget-oriented Gaussian beam migration using a modified ray tracing scheme10.1007/s12182-019-00388-y1672-51071995-8226https://doaj.org/article/c13d9fd8c7224c8eb5900ae6df18a17a2019-11-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-019-00388-yhttps://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract For large-scale 3D seismic data, target-oriented reservoir imaging is more attractive than conventional full-volume migration, in terms of computation efficiency. Gaussian beam migration (GBM) is one of the most robust depth imaging method, which not only keeps the advantages of ray methods, such as high efficiency and flexibility, but also allows us to solve caustics and multipathing problems. But conventional Gaussian beam migration requires slant stack for prestack data, and ray tracing from beam center location to subsurface, which is not easy to be directly applied for target-oriented imaging. In this paper, we modify the conventional Gaussian beam migration scheme, by shooting rays from subsurface image points to receivers to implement wavefield back-propagation. This modification helps us to achieve a better subsurface illumination in complex structure and allows simple implementation for target reservoir imaging. Significantly, compared with the wavefield-based GBM, our method does not reconstruct the subsurface snapshots, which has higher efficiency. But the proposed method is not as efficient as the conventional Gaussian beam migration. Synthetic and field data examples demonstrate the validity and the target-oriented imaging capability of our method.Rui ZhangJian-Ping HuangSu-Bin ZhuangZhen-Chun LiKeAi Communications Co., Ltd.articleGaussian beam migrationTarget-oriented imagingIlluminationRay tracingScienceQPetrologyQE420-499ENPetroleum Science, Vol 16, Iss 6, Pp 1301-1319 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Gaussian beam migration Target-oriented imaging Illumination Ray tracing Science Q Petrology QE420-499
spellingShingle	Gaussian beam migration Target-oriented imaging Illumination Ray tracing Science Q Petrology QE420-499 Rui Zhang Jian-Ping Huang Su-Bin Zhuang Zhen-Chun Li Target-oriented Gaussian beam migration using a modified ray tracing scheme
description	Abstract For large-scale 3D seismic data, target-oriented reservoir imaging is more attractive than conventional full-volume migration, in terms of computation efficiency. Gaussian beam migration (GBM) is one of the most robust depth imaging method, which not only keeps the advantages of ray methods, such as high efficiency and flexibility, but also allows us to solve caustics and multipathing problems. But conventional Gaussian beam migration requires slant stack for prestack data, and ray tracing from beam center location to subsurface, which is not easy to be directly applied for target-oriented imaging. In this paper, we modify the conventional Gaussian beam migration scheme, by shooting rays from subsurface image points to receivers to implement wavefield back-propagation. This modification helps us to achieve a better subsurface illumination in complex structure and allows simple implementation for target reservoir imaging. Significantly, compared with the wavefield-based GBM, our method does not reconstruct the subsurface snapshots, which has higher efficiency. But the proposed method is not as efficient as the conventional Gaussian beam migration. Synthetic and field data examples demonstrate the validity and the target-oriented imaging capability of our method.
format	article
author	Rui Zhang Jian-Ping Huang Su-Bin Zhuang Zhen-Chun Li
author_facet	Rui Zhang Jian-Ping Huang Su-Bin Zhuang Zhen-Chun Li
author_sort	Rui Zhang
title	Target-oriented Gaussian beam migration using a modified ray tracing scheme
title_short	Target-oriented Gaussian beam migration using a modified ray tracing scheme
title_full	Target-oriented Gaussian beam migration using a modified ray tracing scheme
title_fullStr	Target-oriented Gaussian beam migration using a modified ray tracing scheme
title_full_unstemmed	Target-oriented Gaussian beam migration using a modified ray tracing scheme
title_sort	target-oriented gaussian beam migration using a modified ray tracing scheme
publisher	KeAi Communications Co., Ltd.
publishDate	2019
url	https://doaj.org/article/c13d9fd8c7224c8eb5900ae6df18a17a
work_keys_str_mv	AT ruizhang targetorientedgaussianbeammigrationusingamodifiedraytracingscheme AT jianpinghuang targetorientedgaussianbeammigrationusingamodifiedraytracingscheme AT subinzhuang targetorientedgaussianbeammigrationusingamodifiedraytracingscheme AT zhenchunli targetorientedgaussianbeammigrationusingamodifiedraytracingscheme
_version_	1718395785764143104

Target-oriented Gaussian beam migration using a modified ray tracing scheme

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