| VTI介质转换波速度分析方法研究及应用 |
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| 引用本文： | 斯兴焱,李录明,罗省贤. VTI介质转换波速度分析方法研究及应用[J]. 物探化探计算技术, 2010, 32(2): 138-143 |
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| 作者姓名： | 斯兴焱 李录明 罗省贤 |
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| 作者单位： | "油气藏地质及开发工程"国家重点实验室,成都理工大学,地球探测与信息技术教育部重点实验室,四川,成都,610059 |
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| 基金项目： | 国家863项目资助，国家重大专项资助 |
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| 摘 要： | 速度分析是转换波处理的核心问题之一,采用单平方根方程对具有垂直对称轴的横向各向同性(VTI)介质进行速度分析,使得转换波的处理不依赖于纵波的数据,既简化了转换波处理流程,又消除了由于纵波处理不精确所带来的传递误差。通过理论分析和数值计算,总结并设计了一套求取VTI介质转换波动校正参数的方法和处理流程,总结出了采用双参数扫描法获得较高分辨率和精度所需满足的必要条件。通过批处理和交互结合的方式对实际资料进行处理,取得了较好的处理效果,证明了该方法及软件的正确性。
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| 关 键 词： | 转换波 速度分析 VTI介质 参数估计 |
VELOCITY ANALYSIS AND ITS APPLICATION OF CONVERTED-WAVE IN VTI MEDIA |
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| SI Xing-yan,LI Lu-ming,LUO Sheng-xian. VELOCITY ANALYSIS AND ITS APPLICATION OF CONVERTED-WAVE IN VTI MEDIA[J]. Computing Techniques For Geophysical and Geochemical Explorationxploration, 2010, 32(2): 138-143 |
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| Authors: | SI Xing-yan LI Lu-ming LUO Sheng-xian |
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| Affiliation: | SI Xing-yan,LI Lu-ming,LUO Sheng-xian (College of Information Engineering,Chengdu University of Technology,State Key Lab. of Oil , Gas Reservoir Geology , Exploration,Chengdu 610059,China,Key Lab. of Earth Exploration , Information Technology (Chengdu University of Technology),the Ministry of Education,China). |
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| Abstract: | Velocity analysis is a core step of the converted wave(c-wave) data process. In this paper, velocity analysis is realized by using single square root equation in transversely isotropic media with a vertical symmetry axis(VTI), which makes the process of converted wave independent of P-wave data. This method not only simplifies the process procedure, but also eliminates the error propagation due to the inaccuracy of P-wave. A work flow and a method of estimating the c-wave parameters are provided by theoreti... |
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| Keywords: | converted wave velocity analysis VTI media parameter estimation |
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