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Trace-imposed stretch correction in Kirchhoff prestack time migration
Liu, Qiancheng1; Zhang, Jianfeng2
2018-11-01
发表期刊GEOPHYSICAL PROSPECTING
ISSN0016-8025
卷号66期号:9页码:1643-1652
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.
关键词Prestack Kirchhoff time migration Migration stretch Shaping filter
DOI10.1111/1365-2478.12685
资助者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
关键词[WOS]COMMON-IMAGE GATHERS ; NORMAL-MOVEOUT ; VELOCITY ANALYSIS ; NMO CORRECTION ; SEISMIC DATA ; RESOLUTION ; PULSE
语种英语
资助项目Elastic Seismic Imaging project of CNPC ; King Abdullah University of Science Technology
资助者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
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000448076000001
出版者WILEY
引用统计
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/89170
专题其他部门
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.
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