Trace-imposed stretch correction in Kirchhoff prestack time migration

doi:10.1111/1365-2478.12685

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	Trace-imposed stretch correction in Kirchhoff prestack time migration
	Liu, Qiancheng 1; Zhang, Jianfeng 2
刊名	GEOPHYSICAL PROSPECTING
	2018-11-01
卷号	66 期号:9 页码:1643-1652
关键词	Prestack Kirchhoff time migration Migration stretch Shaping filter
ISSN号	0016-8025
DOI	10.1111/1365-2478.12685
英文摘要	Kirchhoff prestack time migration, which works trace-by-trace, remains appealing to academia and industry due to its robustness and efficiency. However, like the other prestack migration methods, Kirchhoff prestack time migration also suffers from the angle-dependent stretching effect, which narrows the amplitude spectra of seismic data. This effect gets more severe as the incident angle increases. In this paper, we propose a novel approach, which attaches a prediction shaping filter to the Kirchhoff prestack time migration, to mitigate the stretching effect. Our approach takes advantage on the trace-by-trace implementation of the prestack time migration algorithm, without the output of the angle-domain common-imaging gather. Also, our method can cascade with Q-compensation in prestack time migration. We demonstrate our method with both a numerical example and a field data example.
资助项目	Elastic Seismic Imaging project of CNPC ; King Abdullah University of Science Technology
WOS关键词	COMMON-IMAGE GATHERS ; NORMAL-MOVEOUT ; VELOCITY ANALYSIS ; NMO CORRECTION ; SEISMIC DATA ; RESOLUTION ; PULSE
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	WILEY
WOS记录号	WOS:000448076000001
资助机构	Elastic Seismic Imaging project of CNPC ; Elastic Seismic Imaging project of CNPC ; King Abdullah University of Science Technology ; King Abdullah University of Science Technology ; Elastic Seismic Imaging project of CNPC ; Elastic Seismic Imaging project of CNPC ; King Abdullah University of Science Technology ; King Abdullah University of Science Technology ; Elastic Seismic Imaging project of CNPC ; Elastic Seismic Imaging project of CNPC ; King Abdullah University of Science Technology ; King Abdullah University of Science Technology ; Elastic Seismic Imaging project of CNPC ; Elastic Seismic Imaging project of CNPC ; King Abdullah University of Science Technology ; King Abdullah University of Science Technology
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/89170]
专题	地质与地球物理研究所_其他部门
通讯作者	Liu, Qiancheng
作者单位	1.King Abdullah Univ Sci & Technol, Thuwal 23955, Saudi Arabia 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Liu, Qiancheng,Zhang, Jianfeng. Trace-imposed stretch correction in Kirchhoff prestack time migration[J]. GEOPHYSICAL PROSPECTING,2018,66(9):1643-1652.
APA	Liu, Qiancheng,&Zhang, Jianfeng.(2018).Trace-imposed stretch correction in Kirchhoff prestack time migration.GEOPHYSICAL PROSPECTING,66(9),1643-1652.
MLA	Liu, Qiancheng,et al."Trace-imposed stretch correction in Kirchhoff prestack time migration".GEOPHYSICAL PROSPECTING 66.9(2018):1643-1652.