| 复杂介质中地震多次反射波快速正演模拟 |
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| 引用本文： | 顾汉明,王纬,等.复杂介质中地震多次反射波快速正演模拟[J].地球科学,2001,26(5):541-550. |
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| 作者姓名： | 顾汉明 王纬 |
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| 作者单位： | [1]中国地质大学地球物理系，湖北武汉430074 [2]中原油田勘探局勘探开发研究院，河南濮阳457001 |
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| 基金项目： | 中原石油勘探局项目 (No .99-0 1-0 2 ) :地震波场正演模拟软件系统研制 |
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| 摘 要： | 多次波的压制方法研究及多次波对一次波振幅随炮检距变化（AVO）影响的分析，需要实用的多次波正演模拟方法，提出适用复杂层状介质的多次波射线码的计算方法，使得多次波的射线追踪易于快速实现，同时，提出了减少多次波计算量的量板表法及插值法，模拟的多次波计算结果表明，多次波振幅的计算精度高，计算速度快，对文中设计的模型，振幅的最大相对误差为1．8％，而计算时间减少了0．6倍。
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| 关 键 词： | 多次反射波 快速正演模拟 地震勘探 量板表法 插值法 |
| 文章编号： | 1000-2383(2001)05-0541-04 |
FAST SYNTHETIC SEISMOGRAMS FOR MULTIPLES IN ANY COMPLEX STRATIFIED MEDIA |
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| Gu Hanming ,Wang Wei ,Chen Guojun.FAST SYNTHETIC SEISMOGRAMS FOR MULTIPLES IN ANY COMPLEX STRATIFIED MEDIA[J].Earth Science-Journal of China University of Geosciences,2001,26(5):541-550. |
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| Authors: | Gu Hanming Wang Wei Chen Guojun |
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| Institution: | Gu Hanming 1,Wang Wei 2,Chen Guojun 2 |
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| Abstract: | The research of multiple suppression and analysis of influence of multiple amplitude upon primary amplitude-via-offset (AVO) need an effective multiple-modeling method. Thus, a new method has been developed that can automatically calculate multiple ray codes in any complex stratified media, making multiple ray trace fast. Meanwhile, an approach to the computation of multiple amplitude by methods of seeking table and interpolation are discussed. The modeling result shows that the method is of high precision and fast-speed in multiple amplitude calculation. The maximum relative error of amplitude is 1.8% and the spent time by using the method has decreased by 0.4 times one by using accurate ray tracing in the designed model. |
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| Keywords: | seismic multiples amplitude-via-offset fast synthetic seismograms |
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