一种基于小波变换的测井信号自动对比算法

Well log automatic correlation based on wavelet transform

清华大学自动化系, 北京 100084

Department of Automation, Tsinghua University, Beijing 100084

本文主要讲述了一个应用小波变换进行测井信号自动对比的算法。它是根据地质专家的经验,基于“由粗到细、分级控制”的概念,采用一类小波变换对测井信号进行多分辨率分析,利用其过零点提取曲线形态的特征,进而进行由粗到细的分级比对处理,实验结果良好。

In this paper, we give an account of an automatic correlation algorithm for well log using wavelet transform. In the algorithm, according to the experience of geologists a kind of wavelet transform is used for multirerelution analysis of well log based on the concept of "from coarse to fine and graded control".The characteristics of curve shapes have been extracted by using the zero crossing, and the correlation processing from coarse to fine is also carried out. The experiment result is good.