Trace-imposed stretch correction in Kirchhoff prestack time migration | |
Liu, Qiancheng1; Zhang, Jianfeng2 | |
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. |
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