| 非零井源距VSP旅行时反演 |
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| 引用本文： | 王丽燕.非零井源距VSP旅行时反演[J].石油地球物理勘探,1993,28(4):484-491. |
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| 作者姓名： | 王丽燕 |
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| 作者单位： | 石油地球物理勘探局研究院 |
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| 摘 要： | VSP旅行时反演是提取地震速度参数的一种有效方法。本文采用广义反演法对非零井源距VSP数据进行了最小平方旅行时反演,并用Marguardt-Levenberg方法求解,获得了较好的层速度信息。方法中由于引入了阻尼因子,避免了解的奇异性,提高了运算速度。理论模型试算表明,算法是正确的。实际资料处理的结果也说明本文反演方法是有效的。
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| 关 键 词： | 非零井源距 旅行时反演 VSP资料 |
Travel time inversion of offset VSP data. |
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| Wang Liyan. Wang Liyan,Geophysical Research Institute,Bureau of oil Geophysical Prospecting,P. . Box -,Zhuozhou City,Hebei Province,Internal Postcode:.Travel time inversion of offset VSP data.[J].Oil Geophysical Prospecting,1993,28(4):484-491. |
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| Authors: | Wang Liyan Wang Liyan Geophysical Research Institute Bureau of oil Geophysical Prospecting P Box - Zhuozhou City Hebei Province Internal Postcode: |
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| Affiliation: | Wang Liyan. Wang Liyan,Geophysical Research Institute,Bureau of oil Geophysical Prospecting,P. 0. Box 11-3,Zhuozhou City,Hebei Province,Internal Postcode:072750 |
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| Abstract: | Travel time inversion of VSP data is an efficient method for deriving seismic velocity from VSP data. Quite good interval velocity can be obtained by achieving leastsquare travel time inversion of offset VSP data with the use of generalized inversion, and adopting Marquardt-Levenberg technique for solution. The use of damping factor avoids singular solution and speeds up operation. Theoretical modeling shows that the algorithm is right. Real data processing result proves the inversion method feasible. |
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| Keywords: | vertical seismic profile(VSP) travel time inversion velocity |
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