Reverse time migration using water-bottom-related multiples

doi:10.1111/1365-2478.12851

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院油气资源研究重点实验室

	Reverse time migration using water-bottom-related multiples
	Zhang, Yanbao 1,2,3; Liu, Yike 1; Liu, Xuejian 1,2; Zhou, Xiaopeng 1,2
刊名	GEOPHYSICAL PROSPECTING
	2019-08-09
页码	20
关键词	Seismics Imaging Modelling Inversion
ISSN号	0016-8025
DOI	10.1111/1365-2478.12851
英文摘要	Reverse time migration of multiples can be used to construct subsurface structures where primaries cannot illuminate well. However, the images generated using multiples suffer from severe artefacts due to the cross-talks created by interference among unrelated multiples. We developed a migration approach using water-bottom-related multiples to reduce these cross-talk artefacts. This approach first isolates primaries from the original data and predicts water-column primaries. The nth-order water-column multiples can be obtained by auto-convolving the water-column primaries n times, followed by convolving the nth-order water-column multiples with the primaries to extract the (n+1)th-order water-bottom-related multiples. The approach takes the nth-order water-column multiples as the secondary source and regards the (n+1)th-order water-bottom-related multiples as the receiver wavefield, followed by a cross-correlation imaging condition. Numerical examples from synthetic and field data sets reveal that our approach can provide images with substantially fewer cross-talk artefacts than conventional reverse time migration using multiples, as well as greatly improving shallow imaging compared with reverse time migration of primaries.
资助项目	National Nature Science Foundation of China[41730425] ; National Nature Science Foundation of China[41430321] ; National Oil and Gas Major Project of China[2017ZX05008-007]
WOS关键词	LEAST-SQUARES MIGRATION ; FREE-SURFACE MULTIPLES ; ITERATIVE INVERSION ; SCATTERING
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	WILEY
WOS记录号	WOS:000481169800001
资助机构	National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Oil and Gas Major Project of China ; National Oil and Gas Major Project of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Oil and Gas Major Project of China ; National Oil and Gas Major Project of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Oil and Gas Major Project of China ; National Oil and Gas Major Project of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Oil and Gas Major Project of China ; National Oil and Gas Major Project of China
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/93348]
专题	地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者	Zhang, Yanbao
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 10029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yanbao,Liu, Yike,Liu, Xuejian,et al. Reverse time migration using water-bottom-related multiples[J]. GEOPHYSICAL PROSPECTING,2019:20.
APA	Zhang, Yanbao,Liu, Yike,Liu, Xuejian,&Zhou, Xiaopeng.(2019).Reverse time migration using water-bottom-related multiples.GEOPHYSICAL PROSPECTING,20.
MLA	Zhang, Yanbao,et al."Reverse time migration using water-bottom-related multiples".GEOPHYSICAL PROSPECTING (2019):20.