| 精细积分法三维地震波正演模拟 |
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| 引用本文： | 王润秋,张明,费建博,黄文锋.精细积分法三维地震波正演模拟[J].勘探地球物理进展,2006,29(6):394-397. |
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| 作者姓名： | 王润秋 张明 费建博 黄文锋 |
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| 作者单位： | 中国石油大学CNPC物探重点实验室,北京,102249 |
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| 摘 要： | 将任意差分精细积分法用于三维地震正演模拟，首先推导了求解三维波动方程的任意差分精细积分计算公式，并结合吸收边界条件实现了三维地下断层构造加穹隆的地质模型正演。该方法为半解析的数值方法。计算实例表明，子波数值频散现象得到较好的控制，反射信号走时准确,可方便地应用到三维实际地质模型的地震正演中。
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| 关 键 词： | 地震波场数值模拟 正演模拟 任意差分精细积分 波动方程 有限差分 |
| 文章编号： | 1671-8585（2006）06-0394-04 |
| 收稿时间： | 2006-06-13 |
| 修稿时间： | 2006-08-15 |
Precise integral method for 3-D seismic forward modeling |
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| Wang Runqiu,Zhang Ming,Fei Jianbo,Huang Wenfeng.Precise integral method for 3-D seismic forward modeling[J].Progress in Exploration Geophysics,2006,29(6):394-397. |
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| Authors: | Wang Runqiu Zhang Ming Fei Jianbo Huang Wenfeng |
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| Affiliation: | CNPC Key Lab of Geophysical Exploration, China University of Petroleum, Beijing 102249, China |
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| Abstract: | In this paper, the arbitrary difference precise integral method was adopted in 3-D seismic forward modeling. Firstly we deduced the formula of arbitrary difference and precise integral that are used to solving 3-D wave equation. Secondly we presented an example of 3-D seismic forward modeling over a fault and a quaquaversal dome with absorption boundary. The ADPI is a half-analytic numerical method. Results showed that the numerical dispersion of seismic wave is well controlled, and the travel time of reflected seismic wave is accurate. This method can easily be used to 3-D wave equation forward modeling. |
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| Keywords: | seismic wavefield numerical modeling forward modeling arbitrary difference precise integral method wave e-quation finite difference |
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