IMPROVING THE IMAGING RESOLUTION OF 3D PSTM IN VTI MEDIA USING OPTIMAL SUMMATION WITHIN THE FRESNEL ZONE

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

	IMPROVING THE IMAGING RESOLUTION OF 3D PSTM IN VTI MEDIA USING OPTIMAL SUMMATION WITHIN THE FRESNEL ZONE
	Zhang, Hao 1; Zhang, Jiangjie 1; Li, Zhengwei 1; Zhang, Jianfeng 1; Xiao, Jiang 2
刊名	JOURNAL OF SEISMIC EXPLORATION
	2017-08-01
卷号	26 期号:4 页码:311-330
关键词	stationary-phase pre-stack time migration Fresnel zone noise suppression
ISSN号	0963-0651
文献子类	Article
英文摘要	We improve the amplitude-preserved PSTM in 3D VTI media by introducing a stationary-phase implementation in dip-angle domain so as to achieve optimal summation within Fresnel zone. The previous proposed amplitude-preserved PSTM scheme in 3D VTI media has been proven effective to produce fine image and gathers for hydrocarbon and fluid detection. However, due to the application of a relatively simple migration aperture, this migration scheme may suffer from migration noise and degrade the resolution gained. The proposed implementation in this paper can improve the 3D VTI PSTM by smearing each time sample only along the Fresnel zone rather than along the whole migration aperture, thus suppressing the noises on 3D VTI PSTM result. The Fresnel zone range is defined by picking up dip angles on dip-angle gathers generated from VTI PSTM scheme thus noises outside the Fresnel zones are suppressed in the migration process. The proposed stationary-phase VTI PSTM could effectively solve the problem of low signal-to-noise ratios in migrated images, especially in the presence of steeply dipping structures. We apply the so-called stationary-phase amplitude-preserved VTI PSTM to a field data. An improved imaging result is obtained.
WOS关键词	TRANSVERSELY ISOTROPIC MEDIA ; TIME MIGRATION ; DIP
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	GEOPHYSICAL PRESS
WOS记录号	WOS:000410465100002
资助机构	National Natural Science Fund of China(41604120) ; National Major Project of China(2017ZX05008-007) ; China Postdoctoral Science Foundation(2017M610982) ; National Natural Science Fund of China(41604120) ; National Major Project of China(2017ZX05008-007) ; China Postdoctoral Science Foundation(2017M610982) ; National Natural Science Fund of China(41604120) ; National Major Project of China(2017ZX05008-007) ; China Postdoctoral Science Foundation(2017M610982) ; National Natural Science Fund of China(41604120) ; National Major Project of China(2017ZX05008-007) ; China Postdoctoral Science Foundation(2017M610982)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/61924]
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, Hao
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 2.China Natl Petr Corp, BGP Inc, Geophys Res Inst, Korla 841001, Xinjiang, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Hao,Zhang, Jiangjie,Li, Zhengwei,et al. IMPROVING THE IMAGING RESOLUTION OF 3D PSTM IN VTI MEDIA USING OPTIMAL SUMMATION WITHIN THE FRESNEL ZONE[J]. JOURNAL OF SEISMIC EXPLORATION,2017,26(4):311-330.
APA	Zhang, Hao,Zhang, Jiangjie,Li, Zhengwei,Zhang, Jianfeng,&Xiao, Jiang.(2017).IMPROVING THE IMAGING RESOLUTION OF 3D PSTM IN VTI MEDIA USING OPTIMAL SUMMATION WITHIN THE FRESNEL ZONE.JOURNAL OF SEISMIC EXPLORATION,26(4),311-330.
MLA	Zhang, Hao,et al."IMPROVING THE IMAGING RESOLUTION OF 3D PSTM IN VTI MEDIA USING OPTIMAL SUMMATION WITHIN THE FRESNEL ZONE".JOURNAL OF SEISMIC EXPLORATION 26.4(2017):311-330.