| 黏弹性参数地震波测定理论及应用实例 |
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| 引用本文： | 底青云,王妙月.黏弹性参数地震波测定理论及应用实例[J].石油地球物理勘探,2000,35(1):51-55. |
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| 作者姓名： | 底青云 王妙月 |
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| 作者单位： | 中国科学院地球物理研究所 |
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| 基金项目： | 国家自然科学基金，地震联合基金资助项目 |
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| 摘 要： | 本文在频率域导出了线性流变体介质内的波动方程，同时也给出了黏弹性参数随空间坐标缓变时的近似波动方程表达式，明确了黏弹性参数和波相速度及各类波初动振幅之间的关系。
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| 关 键 词： | 参数测定 地震波 黏弹性 地震勘探 |
The method for viscoelastic parameter determination using seismic wave and its application example. |
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| Di Qingyun and Wang Miaoyue..The method for viscoelastic parameter determination using seismic wave and its application example.[J].Oil Geophysical Prospecting,2000,35(1):51-55. |
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| Authors: | Di Qingyun and Wang Miaoyue |
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| Affiliation: | Di Qingyun and Wang Miaoyue. |
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| Abstract: | Wave equation in linear rheological medium is deduced in frequency domain, then approximate wave equation in the medium where viscoelastic parameters vary with location is also given in this paper. In addition, the relation between viscoelastic parameter and phase velocity or initial amplitude of each wave is shown definitely. In an example, theoretical wave field in viscoelastic medium is obtained by using finite element method; then attenuation coefficients are derived from the initial amplitudes of its direct wave, transmitted wave and reflection wave; and finally the ratio of viscous parameter to elastic parameter is estimated by inversion. The comparison with model values says that the inversion values are reasonable and the method is reliable. |
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| Keywords: | viscoelasticity parameter determination earth medium linear rheological body wave equation |
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