| 双相横向各向同性介质分界面上弹性波反射与透射问题研究 |
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| 引用本文： | 刘洋,李承楚,牟永光.双相横向各向同性介质分界面上弹性波反射与透射问题研究[J].地球物理学报,2000,43(5):691-698. |
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| 作者姓名： | 刘洋 李承楚 牟永光 |
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| 作者单位： | 石油大学地球科学系,北京102200 |
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| 基金项目： | 中国石油天然气集团公司“九五”重点攻关项目资助!(970 1 0 4 ) |
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| 摘 要： | 从双相横向各向同性介质弹性波波动方程出发 ,利用边界上的 4个连续性条件 ,计算双相横向各向同性介质分界面上弹性波反射和透射系数 .计算表明 ,快纵波在双相横向各向同性介质分界面上 ,要产生反射快纵波、反射转换 qSV波、反射转换慢纵波和透射快纵波、透射转换qSV波、透射转换慢纵波 .反射转换慢纵波振幅和透射转换慢纵波振幅均较小 .频率、耗散和各向异性大小影响着快纵波反射系数的大小 .
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| 关 键 词： | 双相 横向各向同性 弹性波 反射系数 透射系数 |
| 收稿时间： | 2000-02-02 |
Reflection and Transmission of Plane Wave on an Interface between Dissimilar Two-phase,Transversely Isotropic Media |
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| LIU Yang,LI Cheng-Chu,MOU Yong-Guang.Reflection and Transmission of Plane Wave on an Interface between Dissimilar Two-phase,Transversely Isotropic Media[J].Chinese Journal of Geophysics,2000,43(5):691-698. |
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| Authors: | LIU Yang LI Cheng-Chu MOU Yong-Guang |
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| Institution: | Department of Geoscience,University of Petroleum,Beijing,102200,China |
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| Abstract: | A method for calculating reflection and transmission coefficients of elastic wave is derived based on elastic wave equations and four continuity conditions of an interface between dissimilar two phase,transversely isotropic media.The calculation of reflection and transmission coefficients shows that on the interface,incident fast P wave will generate three kinds of reflection waves and three kinds of transmission waves,namely,qP 1,converted qSV and converted qP 2 waves.The amplitudes of converted slow P wave in both reflection and transmission waves are small.Frequency,dissipation and anisotropy all have influence on the magnitude of reflection coefficients of fast P wave. |
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| Keywords: | Two phase Transversely isotropy Elastic wave Reflection coefficients Transmission coefficients |
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