| 单步波场延拓法单炮时间偏移 |
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| 引用本文： | 王有新,郭树祥,单联瑜.单步波场延拓法单炮时间偏移[J].油气地球物理,2008(3). |
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| 作者姓名： | 王有新 郭树祥 单联瑜 |
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| 作者单位： | 胜利油田分公司物探研究院 |
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| 摘 要： | 偏移算法可以分为波场和射线两种类型,其中叠前时间偏移主要使用射线法,而射线法难以达到最佳振幅响应特性,因此,波场法一直都是研究的目标。现有的波场法叠前时间偏移主要是共炮检距和共平面波两种F-K域实现方式。一般而言,单炮总是最适合的选择,它具有方程简单、操作方便和容易实现的特点。根据这个认识,本文通过相移加内插的方法实现单炮时间偏移,采用均方根速度进行单步波场延拓,从而取得良好的成像质量和振幅特性。
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| 关 键 词： | 叠前时间偏移 波场 射线 单炮 |
Single shot time migration by one step wave field continuation method |
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| WANG You-xin.Single shot time migration by one step wave field continuation method[J].Petroleum Geophysics,2008(3). |
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| Authors: | WANG You-xin |
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| Affiliation: | WANG You-xin(Geophysical Research Institute of Shengli Oilfield,Dongying 257022,China) |
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| Abstract: | The migration algorithm can be divided into wave field and ray types,in which the prestack time migration mainly use ray method,but the optimal amplitude response characteristics can not be met by the ray method,so the wave field always is focused on in research.Available wave field prestack time migration mainly realized by common offset and common plane wave.Generally single shot is the most suitable,which has simple equation,convenient operation and easy realization.Based on this,the single shot time mig... |
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| Keywords: | prestack time migration wave field ray and single shot |
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