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海上三维多分量地震速度建模和成像实践
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摘要
多分量地震在气云成像、岩性预测等方面相较传统纵波勘探有一些优势。多分量地震处理的一个难点在于多分量资料的速度建模和偏移成像。本文介绍了一种基于偏移速度扫描的三维时间域多分量速度建模方法和可选时间轴的转换波成像方法,并给出了一个实用化的处理流程。在中国两个海域的多分量速度建模和成像实践中,取得了良好的速度建模和成像效果。
引文
[1]H.C.Dai,X.Y.Li and Paul C.3D pre-stack KirchhoflF time migration of PS-waves and migration velocity model building:74th Annual International Meeting,SEQ Expanded Abstracts.2004
    [2]Gabriel D.Gil.Vp/Vs estimation from post-stack P-and PS-wave data:80th Annual International Meeting,SEG,Expanded Abstracts,2010,1703-1707
    [3]Yue Y.B.,Qian Z.P.,Li J.R.,PS-wave Kirchhoff depth migration and its application to imaging gas clouds:83th Annual International Meeting,SEG,Expanded Abstracts,2013,1699-1703
    [4]Peter W.C.and C.J.Zhang.Technical Considerations for Converted-Wave Prestack Time Migration:80th Annual International Meeting,SEG,Expanded Abstracts,2010,1656-1660
    [5]Z.W.Deng,U.X.Wang,M.K.Sen..A practical approach to mode-converted shear wave velocity analysis from 3C data:80th Annual International Meeting,SEG,Expanded Abstracts,2010,1724-1728

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