| 基于奇异值分解法的核磁测井解谱算法 |
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| 引用本文： | 刘宏强,王祝文.基于奇异值分解法的核磁测井解谱算法[J].吉林大学学报(地球科学版),2007(Z1). |
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| 作者姓名： | 刘宏强 王祝文 |
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| 作者单位： | [1]吉林大学地球探测科学与技术学院 [2]吉林大学地球探测科学与技术学院 长春 |
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| 摘 要： | 核磁测井资料的处理与解释是核磁测井技术的关键,也是其应用的难点所在。介绍了利用奇异值分解法对回波串进行处理,求得最小二乘意义下的最优解,进一步得到关于孔隙度分布的T2谱。并利用T2分布谱对实际地层进行分析,区分油、气、水层。
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| 关 键 词： | 核磁测井 奇异值分解 T2分布 多指数反演 |
Study of the Algorithm for Singular Value Decomposition Inversion of NMR Logging Data Processing |
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| LIU Hong-qiang,WANG Zhu-wen College of GeoExploration Science and Technology,Jilin University,Changchun ,China.Study of the Algorithm for Singular Value Decomposition Inversion of NMR Logging Data Processing[J].Journal of Jilin Unviersity:Earth Science Edition,2007(Z1). |
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| Authors: | LIU Hong-qiang WANG Zhu-wen College of GeoExploration Science and Technology Jilin University Changchun China |
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| Institution: | LIU Hong-qiang,WANG Zhu-wen College of GeoExploration Science and Technology,Jilin University,Changchun 130026,China |
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| Abstract: | Nuclear magnetic resonance(NMR) logging data process and interpretation is the key to nuclear magnetic logging technology,but also the difficulty of the application.This paper introduces the use of the singular value decomposition method to echo train processing.And get the least-squares sense optimal solution,further on the porosity distribution of T2 spectrum.Using T2 spectrum distribution to analysis the actual stratum,and distinguish between oil,gas and water layer. |
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| Keywords: | NMR logging SVD T2 distribution multiexponential inversion |
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