[1]柴艳领[],唐志涛[].Haar 小波变换在测井曲线相似性对比中的应用[J].计算机技术与发展,2016,26(01):119-123.
　CHAI Yan-ling[],TANG Zhi-tao[]. pplication of Haar Wavelet Transform in Well-logging Curve Similarity[J].,2016,26(01):119-123.
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Haar 小波变换在测井曲线相似性对比中的应用()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
26
期数:
2016年01期
页码:
119-123
栏目:
应用开发研究
出版日期:
2016-01-10

文章信息/Info

Title:
 pplication of Haar Wavelet Transform in Well-logging Curve Similarity
文章编号:
1673-629X（2016)01-0119-05
作者:
 柴艳领[1];  唐志涛[2]
 1.东北石油大学 计算机与信息技术学院；2内蒙古大唐国际锡林浩特矿业
Author(s):
 CHAI Yan-ling[1] ; TANG Zhi-tao[2]
关键词:
 ; 形态特征; 小波变换; 测井曲线; 相似性对比
Keywords:
 ; morphological characteristics; wavelet transform; well-logging curve; similarity comparison
分类号:
TP39
文献标志码:
A
摘要:
 针对测井曲线信号中存在的噪声以及其形态特征的性质，结合分析了 Haar 小波变换以及测井曲线小波变换原理，提出基于 Haar 小波变换的测井曲线相似性识别方法。应用小波分解将测井曲线的信号分解为宏观特征信息、细节信息和噪音信息三部分，把下套管前得到的自然伽马曲线与下套管后测得的自然伽马曲线作为同一类，用于完井深度校正中的砂岩对比层识别中，利用形态特征的相似计算方法判别分析曲线的宏观信息。这些曲线信息是经 Haar 小波变换后得到的，对测井曲线的相似性进行对比，准确查找射孔深度对比层位。实验结果表明，该方法能够有效地用于测井曲线相似性对比识别中。
Abstract:
 According to the nature of the morphological features and the existence of the noise of logging curve,combined with the analy-sis of the Haar wavelet transform and the wavelet transform principle of logging curve,the identification method of the well-logging curve similarity based on Haar wavelet transform was presented. Wavelet decomposition is used to decompose log curve of the signal into macro characteristic information,details and noise. The former and the after natural Gamma curve is regarding as the same,used in sand-stone layer recognition of the completion depth correction. The method of the similarity of morphological characteristics is applied to ana-lyze the macro information for curve,which is obtained by Haar wavelet transform for similarity comparison of logging curve,finding the perforation depth contrast layers accurately. The experiments show the effectiveness of this method.

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更新日期/Last Update: 2016-04-13