| An approximation to the P-wave reflection coefficient for amplitude variation with long-offset seismic data |
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| 引用本文： | 王璞 张文坡 胡天跃. An approximation to the P-wave reflection coefficient for amplitude variation with long-offset seismic data[J]. 应用地球物理, 2007, 4(1): 29-36. DOI: 10.1007/s11770-007-0005-z |
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| 作者姓名： | 王璞 张文坡 胡天跃 |
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| 作者单位： | [1]School of Earth and Space Sciences, Peking University, Beijing 100871, China [2]Exploration and Development Research Institute, Liaohe Oilfield, Petrochina, Liaoning 124010, China |
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| 基金项目： | This research is sponsored by China National Natural Science Foundation （40574050, 40521002） and CNPC Key Research Program （06A 10101）. |
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| 摘 要： | 近年来,长偏移距排列逐渐被大量应用到海上勘探。传统AVO分析都是小入射角,对于长偏移距数据来说有很大不足。为了探讨拓宽AVO分析的研究范围,本文推导了长偏移距时P波反射系数的一种近似公式,并讨论了其精确性。本文的结果和广泛应用的Shuey公式相类似,Shuey公式可以看作本文结果在小入射角情况的简化。
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| 关 键 词： | 长偏移距地震数据 振幅变异 P-波反射系数 近似值 地震勘探 |
| 收稿时间： | 2007-01-10 |
| 修稿时间： | 2007-01-10 |
An approximation to the P-wave reflection coefficient for amplitude variation with long-offset seismic data |
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| Pu Wang,Wenpo Zhang,Tianyue Hu. An approximation to the P-wave reflection coefficient for amplitude variation with long-offset seismic data[J]. Applied Geophysics, 2007, 4(1): 29-36. DOI: 10.1007/s11770-007-0005-z |
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| Authors: | Pu Wang Wenpo Zhang Tianyue Hu |
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| Affiliation: | (1) School of Earth and Space Sciences, Peking University, Beijing, 100871, China;(2) Exploration and Development Research Institute, Liaohe Oilfield, Petrochina, Liaoning, 124010, China |
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| Abstract: | In recent years, long-offset exploration has been widely used, especially on marine seismic surveys. Conventional AVO analysis is insufficient for long-offset seismic data. To widen the application range of AVO analysis, we present a new P-wave reflection coefficient approximation applicable to long-offset data. Our result is similar to the well known Shuey formula which can be treated as an approximation to our results for short-offset seismic data. |
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| Keywords: | AVO long-offset Zoeppritz equations Poisson's ratio. |
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