| 弱各向异性介质中P-SV波弹性阻抗与流体识别因子(英文) |
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| 引用本文： | 崔杰,韩立国,刘前坤,张显文,韩利.弱各向异性介质中P-SV波弹性阻抗与流体识别因子(英文)[J].应用地球物理,2010,7(2):135-142. |
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| 作者姓名： | 崔杰 韩立国 刘前坤 张显文 韩利 |
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| 作者单位： | |
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| 基金项目： | sponsored by the National 973 Program(Grant No.2007CB209603) |
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| 摘 要： | 基于Petr Jilek正交各向异性介质中的P-SV波反射系数精确公式,通过近似得到VTI和HTI介质中的P-SV波近似公式,同时结合Kenneth横波弹性阻抗原理,推导建立了VTI和HTI介质中P-SV波的弹性阻抗近似公式;在此基础上构建了弱各向异性介质中的流体识别因子公式,通过理论模型对Castagna和Smith的岩性组合进行了识别;最后详细分析了各向异性参数的取值对P-SV波弹性阻抗及识别因子产生的影响及变化趋势。
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| 关 键 词： | 弹性阻抗 流体识别因子 各向异性参数 VTI HTI |
P-SV wave elastic impedance and fluid identification factor in weakly anisotropic media |
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| Jie?Cui,Li-Gguo?Han,Qian-Kun?Liu,Xian-Wen?Zhang,Li?Han.P-SV wave elastic impedance and fluid identification factor in weakly anisotropic media[J].Applied Geophysics,2010,7(2):135-142. |
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| Authors: | Jie Cui Li-Gguo Han Qian-Kun Liu Xian-Wen Zhang Li Han |
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| Institution: | -Gguo1,Liu Qian-Kun2,Zhang Xian-Wen1,and Han Li1 1.College of Geo-Exploration Science and Technology,Jilin University,Changchun 130026,China. 2.China Aero Geophysical Survey and Remote Sensing Center for Land and Resources,Beijing 100083,China.Han Li-Guo hanliguo@jlu.edu.cn |
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| Abstract: | The P-SV wave reflection coefficients in VTI and HTI media were obtained by approximation of the Jilek (2002a and b) equation
in orthotropic anisotropic media. An approximate equation for P-SV wave elastic impedance can be derived from the combination
of the new coefficients with S-wave elastic impedance (Duffaut et al., 2000). On this basis, the fluid identification factor
in weakly anisotropic media was constructed and used to identify the Castagna and Smith (1994) lithologic combination and
achieved good results. Finally, we specifically analyzed the anisotropic parameter impacts P-SV wave elastic impedance and
fluid factor trends. |
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| Keywords: | P-SV wave elastic impedance fluid identification factor anisotropic parameter VTI HTI |
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