| TI介质相移法偏移的求解垂向波数迭代法 |
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| 引用本文： | 唐晨,王德利.TI介质相移法偏移的求解垂向波数迭代法[J].吉林大学学报(地球科学版),2010(Z1). |
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| 作者姓名： | 唐晨 王德利 |
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| 作者单位： | 吉林大学地球探测科学与技术学院; |
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| 摘 要： | 横向各向同性模型是一种在沉积岩中很常见的模型,基于这种模型来讨论相移法偏移在其中的应用。在此之前,Kitchenside和王勇等都对此问题进行过类似探讨;他们分别用相位角采样和直接求解垂向波数来达到偏移的目的。对于相移法中相速度和相位角需要通过彼此来求取的问题,作者提出了一种新的逼近真实相速度的方法——迭代法。该方法既避免了相位角采样的计算量大的问题,又避免了直接求解垂向波数时公式复杂的问题。基于此,给出了TI介质相移法偏移的程序流程。理论试算表明,笔者所述的TI介质相移法偏移可以较好地对TI介质进行成像。
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| 关 键 词： | 各向异性偏移 相移法 频率-波数域 横向各向同性 |
An Iterative Method to Solve the Vertical Wavenumber of Phase-shift Migration in Transversely Isotropic Media |
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| TANG Chen,WANG De-li College of GeoExploration Science , Technology,Jilin University,Changchun ,China.An Iterative Method to Solve the Vertical Wavenumber of Phase-shift Migration in Transversely Isotropic Media[J].Journal of Jilin Unviersity:Earth Science Edition,2010(Z1). |
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| Authors: | TANG Chen WANG De-li College of GeoExploration Science Technology Jilin University Changchun China |
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| Institution: | TANG Chen,WANG De-li College of GeoExploration Science and Technology,Jilin University,Changchun 130026,China |
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| Abstract: | Transversely isotropic(TI) media is a model which can be often found in sedimentary rock.The paper is based on this model to make a discussion of phase-shift migration method which is used in it.Before this paper,Kitchenside and Wang Yong etc.have already made a discussion on this.They respectively used the method of taking sample of phase angle or abtaining vertical wavenumber directly to achieve the purpose of migration.Different from their methods,the innovation point of this paper is that,it raises a ne... |
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| Keywords: | anisotropic migration phase-shift f-k transverly isotropic |
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