Multicomponent joint migration velocity analysis in the angle domain for PP-waves and PS-waves
Multicomponent joint migration velocity analysis in the angle domain for PP-waves and PS-waves
复制标题
PP波和PS波角域多分量联合偏移速度分析
DOI：
10.1190/geo2010-0423.1
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发表时间：
2012-02
期刊：
影响因子：
3.3
通讯作者：
Bo Hou
中科院分区：
文献类型：
--
作者：
Fang Li;Jing Ba;Yitong Zhu;Bo Hou
利用多分量地震资料的矢量处理方法，采用弹性克希霍夫偏移方法，在角度域对PP波和PS波进行了多分量联合偏移速度分析（MVA）。在矢量波场成像中，弹性成像条件已被扩展到非零的时间和空间位移。将扩展成像条件应用于弹性克希霍夫偏移，提取PP波和PS波的角度域共成像道集。该方法从三维波传播理论出发，直接对矢量波场进行处理，自动解决了偏移剖面中PS波极性反转的问题。根据PP波和PS波在入射角域的运动学特征，导出了P波和S波的速度更新函数。结合ADCIGS平坦度准则和PP波和PS波像深一致性原则，可以评估P波和S波速度的精度。该方法在一个二维薄内插系统上进行了测试。
Employing the vector processing of multicomponent seismic data, elastic Kirchhoff migration is used to conduct a multicomponent joint migration velocity analysis (MVA) of PP- and PS-waves in the angle domain. In vector-wavefield imaging, the elastic imaging condition has been extended to nonzero time and space shifts. We apply the extended imaging condition to elastic Kirchhoff migration to extract angle-domain common-image gathers (ADCIGs) of PP- and PS-waves. This method, which is derived from 3D wave propagation theory, directly operates on the vector wavefields and automatically resolves the problem of PS-wave polarity reversal in the migration sections. Based on the kinematic characteristics of PP- and PS-waves in the incident-angle domain, the velocity updating functions for P- and S-waves are derived. By combining the ADCIGs flatness criterion and the PP- and PS-wave image-depth consistency principle, the accuracy of P- and S-wave velocities can be assessed. The method was tested on a 2D thin-inter...
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DOI：
10.1190/1.1826642
发表时间：
1996
期刊：
Seg Technical Program Expanded Abstracts
影响因子：
--
作者：
C. Nolan;W. Symes
通讯作者：
C. Nolan;W. Symes
影响因子：
2
作者：
Xiang-Yang Li;Jianxin Yuan
通讯作者：
Xiang-Yang Li;Jianxin Yuan
DOI：
10.1190/1.1885663
发表时间：
1997
期刊：
Seg Technical Program Expanded Abstracts
影响因子：
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作者：
C. Mosher;D. Foster;S. Hassanzadeh
通讯作者：
C. Mosher;D. Foster;S. Hassanzadeh
DOI：
10.1190/1.1851067
发表时间：
2004
期刊：
Seg Technical Program Expanded Abstracts
影响因子：
--
作者：
Sergey Fomel
通讯作者：
Sergey Fomel
影响因子：
3.3
作者：
J. Rickett;P. Sava
通讯作者：
J. Rickett;P. Sava