| The phase relations between the first arrivals of compressional and shear waves, and their signification to full wave logging |
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| 引用本文： | 李宁. The phase relations between the first arrivals of compressional and shear waves, and their signification to full wave logging[J]. 应用地球物理, 2007, 4(2): 146-151. DOI: 10.1007/s11770-007-0021-z |
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| 作者姓名： | 李宁 |
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| 作者单位： | Institute of Geophysics, Academia Sinica, Beijing, China |
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| 基金项目： | Published in the Bulletin of the Chinese Geophysical Society, 1989, Volume 1,118-127. |
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| 摘 要： | This paper describes the three phenomena observed in full wave experiments： 1. the amplitudes （absolute value） of the first compressional and shear arrivals have the same variation rules; 2. the phases of the first compressional and shear arrivals are always opposite to each other; and 3. the amplitude variation periods of the first compressional and shear arrivals are 2π. A full analysis and interpretation points out that these phenomena should appear under the full wave logging condition. Hence,the basis of using phase diffrences to extract useful information from the full wave is found.
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| 关 键 词： | 压缩波 记录 剪力波 相位相关 |
The phase relations between the first arrivals of compressional and shear waves, and their signification to full wave logging |
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| Ning Li. The phase relations between the first arrivals of compressional and shear waves, and their signification to full wave logging[J]. Applied Geophysics, 2007, 4(2): 146-151. DOI: 10.1007/s11770-007-0021-z |
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| Authors: | Ning Li |
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| Affiliation: | (1) Institute of Geophysics, Academia Sinica, Beijing, China |
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| Abstract: | This paper describes the three phenomena observed in full wave experiments: 1. the amplitudes (absolute value) of the first compressional and shear arrivals have the same variation rules; 2. the phases of the first compressional and shear arrivals are always opposite to each other; and 3. the amplitude variation periods of the first compressional and shear arrivals are 2π. A full analysis and interpretation points out that these phenomena should appear under the full wave logging condition. Hence, the basis of using phase differences to extract useful information from the full wave is found. Published in the Bulletin of the Chinese Geophysical Society, 1989, Volume 1, 118–127. Li Ning, see biography and photo in December 2004 Applied Geophysics, p.129, p. 131 |
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| Keywords: | full wave logging phase relation compressional wave shear wave. |
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