| 二维起伏层状模型的纵横波AVO模拟 |
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| 引用本文： | 赵改善. 二维起伏层状模型的纵横波AVO模拟[J]. 石油地球物理勘探, 1991, 0(4) |
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| 作者姓名： | 赵改善 |
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| 作者单位： | 地矿部石油物探研究所 |
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| 摘 要： | 本文采用快速射线追踪算法和平面波在反射界面上的反射和透射系数计算公式,模拟二维起伏界面层状模型的横波(包括P-P、P-SV、SV-SV、SV_P和SH_SH)的振幅随炮检距(AVO)的变化。该方法原理简单、计算速度快,可用于叠前振幅分析和反演,以及指导地震数据采集(特别是转换波采集)观测系统的设计。
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| 关 键 词： | 振幅随炮检距变化(AVO) 二维层状模型 纵波 横波 |
AVO modeling for P and S-waves of two-dimensional undulate lavered model, |
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| Zhao Galshan Oil Geophysical Exploration Research Institute,Ministry of Geology and Minerals,No. Weigang,Nanjing City. Jiangsu Province,China,Internal postcode:. AVO modeling for P and S-waves of two-dimensional undulate lavered model,[J]. Oil Geophysical Prospecting, 1991, 0(4) |
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| Authors: | Zhao Galshan Oil Geophysical Exploration Research Institute Ministry of Geology Minerals No. Weigang Nanjing City. Jiangsu Province China Internal postcode: |
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| Affiliation: | Zhao Galshan Oil Geophysical Exploration Research Institute,Ministry of Geology and Minerals,No. 21 Weigang,Nanjing City. Jiangsu Province,China,Internal postcode: 210014 |
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| Abstract: | AVO modeling for P and S-waves (including P-P, P-SV, SV-SV, SV-P and S-SH waves) of two-dimensional undulate layered model was made by using fast ray-tracing algorithm as well as formulas for calculating reflection and transmission coefficients of plane wave traveling at reflection interface. This method is simple in principle and fast for computation. It is applicable for analysis and inversion of prestack amplitude, and for designing seismic layout, particularly the layout that is good for converted-wave acquisition. |
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| Keywords: | amplitude variation with offset (AVO) two-dimensional layered model pressure wave shear wave |
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