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| 基于慢度法的小波变换多尺度叠前弹性波反演方法 | |
| 引用本文： | 殷文,韩文功,王延光,慎国强.基于慢度法的小波变换多尺度叠前弹性波反演方法[J].中国石油大学学报(自然科学版),2010,34(2). |
| 作者姓名： | 殷文 韩文功 王延光 慎国强 |
| 作者单位： | 1. 中石化胜利油田物探研究院,山东,东营,257022;东营市职业学院,山东,东营,257091 2. 中石化胜利油田物探研究院,山东,东营,257022 3. 中石化胜利油田物探研究院,山东,东营,257022;中国石油大学,资源与信息学院,山东,东营,257061 |
| 基金项目： | 国家"863"高科技发展计划项目 |
| 摘 要： | 针对常规的非线性反演方法存在稳定性较差及易陷入局部极值的问题,采用小波变换将原问题分解在不同的尺度上进行迭代反演,并以大尺度搜索为起点,逐步缩小尺度,最终降至目标函数的原始尺度,同时通过界约束以增加解的稳定性.对理论模型和实际资料分别进行的叠前弹性波反演结果表明,所提方法能有效提高反演的稳定性及精度. |
| 关 键 词： | 慢度法 小波变换 多尺度 叠前弹性波反演 |
Multi-scale prestack elastic-wave inversion by wavelet transform based on slowness method |
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| YIN Wen,HAN Wen -gong,WANG Yan-guang,SHEN Guo-qiang.Multi-scale prestack elastic-wave inversion by wavelet transform based on slowness method[J].Journal of China University of Petroleum,2010,34(2). | |
| Authors: | YIN Wen HAN Wen -gong WANG Yan-guang SHEN Guo-qiang |
| Institution: | YIN Wen1,2,HAN Wen-gong1,WANG Yan-guang1,SHEN Guo-qiang1,3(1.Geophysical Research Institute of Shengli Oilfield Company Limited,SINOPEC,Dongying 257022,China,2.Vocation College,Dong Ying City,Dongying 257091,3.College of Geo-Resources , Information in China University of Petroleum,Dongying 257061,China) |
| Abstract: | Due to the problems of poor stability and falling into local minimum easily in routine nonlinear inversion,wavelet transform was used to decompose original problem to different scale and iterative inversion.Then,scale was reduced step by step with the great scale search as the beginning so as to fall to primitive scale of the objective function ultimately.Simultaneously,search boundaries were set up to stabilize the solutions.The results by the inversion of theoretical model and real seismic data show that ... |
| Keywords: | slowness method wavelet transform multi-scale prestack elastic-wave inversion |
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