| 井间地震走时波形层析成像方法 |
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| 引用本文： | 裴正林,余钦范.井间地震走时波形层析成像方法[J].现代地质,2001,15(3):333-338. |
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| 作者姓名： | 裴正林 余钦范 |
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| 作者单位： | 中国地质大学工程技术学院 |
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| 基金项目： | “九五”国家科技攻关项目(95-913-06-02-03). |
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| 摘 要： | 提出了井间地震走时波形顺序反演方法。该方法先利用井间地震走时反演得到速度模型的低频成分 ,然后用井间地震波形反演获得速度模型的高频成分。数值模型试验和实际应用结果表明 ,该方法反演稳健 ,提高了走时成像的分辨率 ,克服了波形成像易于陷入局部极小的缺陷 ,实现了快速高分辨率成像。
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| 关 键 词： | 井间地震 层析成像 走时波形顺序反演 |
| 文章编号： | 1000-8527(2001)03-0333-06 |
| 修稿时间： | 2000年12月15 |
CROSSHOLE SEISMIC TRAVELTIME-WAVEFORM TOMOGRAPHY |
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| PEI Zheng-lin ,YU Qin-fan.CROSSHOLE SEISMIC TRAVELTIME-WAVEFORM TOMOGRAPHY[J].Geoscience——Journal of Graduate School,China University of Geosciences,2001,15(3):333-338. |
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| Authors: | PEI Zheng-lin YU Qin-fan |
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| Institution: | PEI Zheng-lin 1,YU Qin-fan 2 |
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| Abstract: | Crosshole seismic waveform tomography has high resolution,but easily trapped by local minimum. This paper proposes a method of the traveltime-waveform inversion.The low frequency of velocity model is solved firstly by traveltime inversion, then the high frequency of velocity model is solved by the waveform inversion. The method enhances the resolution of traveltime inversion,overcomes the drawbacks of waveform inversion.The tomography of high resolution can be obtained fastly by the method. The results of numerical modeling and real case show that the method has high stability,high resolution and very good effectiveness. |
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| Keywords: | crosshole seismic tomography traveltime and waveform sequential inversion |
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