| 多尺度分析方法用于测井资料处理研究 |
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| 引用本文： | 刘冰,房文静.多尺度分析方法用于测井资料处理研究[J].山东建筑工程学院学报,2006(6). |
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| 作者姓名： | 刘冰 房文静 |
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| 作者单位： | 中国石油大学物理科学与技术学院 山东东营257061 |
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| 摘 要： | 多尺度分析方法在测井资料的处理中得到广泛应用,但没有对小波基的选取进行过详细研究,不同的小波基具有不同的时频特征,用不同的小波基分析同一问题会产生不同的结果。本文分析了小波基的基本性质,并以相关系数作为选取最优小波基的依据,通过比较选定了适合测井多尺度分析方法的最优小波基。利用该小波基对原始测井信号进行多尺度加权重构,提高了曲线的纵向分辨率,为储层的精细评价提供高质量的测井资料。另外本文将多尺度分析方法用于测井数据压缩,为随钻测井实时传输大量测量数据提供了一种新的思路。
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| 关 键 词： | 测井资料 多尺度分析 小波基 纵向分辨率 数据压缩 |
Application of multiscale analysis to logging data processing |
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| LIU Bing,FANG Wen-jing.Application of multiscale analysis to logging data processing[J].Journal of Shandong Institute of Architecture and Engineering,2006(6). |
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| Authors: | LIU Bing FANG Wen-jing |
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| Abstract: | Though the application of multiscale analysis is wide in logging data, there is no detailed study of the selection of wavelet base.Because of different time-frequency characteristics with different wavelet bases,the analysis of the same problem with different wavelet bases will produce different results.In this paper by way of analyzing basic features of wavelet base and regarding the correlation coefficiency as the basis of selecting optimum wavelet base,the optimum wavelet base adapted to mutiscale analysis in well logging is thus determined.The reconstruction of the original signal using the optimum wavelet base shows that the vertical resolution of logging curves is improved and it provides high quality logging data for reservoir assessment.And this method,applicable to data compression,offers a new way to transport abundant data of logging-while-drilling. |
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| Keywords: | well logging multiscale analysis wavelet base vertical resolution data compression[HJ*4/7] |
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