J4

• 计算机科学 • 上一篇    下一篇

小波变换在智能厚度划分系统中的应用

曹旭光1, 翟慧杰1, 刘传平2   

  1. 1. 吉林大学 计算机科学与技术学院, 长春 130012; 2. 大庆油田研究院, 黑龙江省 大庆 163413
  • 收稿日期:2006-05-06 修回日期:1900-01-01 出版日期:2006-08-26 发布日期:2006-08-26
  • 通讯作者: 翟慧杰

Application of Wavelet Transform inIntelligent Thickness Partition System

CAO Xuguang1, ZHAI Huijie1, LIU Chuanping2   

  1. 1. College of Computer Science and Technology, Jilin University, Changchun 130012, China; 2. Research Institute, Daqing Oil Field Company Ltd, Daqing 163413, Heilongjiang Province, China
  • Received:2006-05-06 Revised:1900-01-01 Online:2006-08-26 Published:2006-08-26
  • Contact: ZHAI Huijie

摘要: 在研究小波变换表征信号突变特征的基础上, 提出一种用小波变换划分地层厚度的方法. 采用高斯一阶导数作为基小波对测井曲线进行一维连续小波变换, 并用得到的系数曲线更精确地识别各个“波形”的形态特征, 根据曲线的特点对精度要求不同的曲线采取了不同尺度的变换, 有效解决了厚度划分中的地层分层和合层问题, 提高了厚度划分精度. 结合实际应用, 验证了该方法处理测井信号的有效性.

关键词: 厚度划分, 小波变换, 测井曲线

Abstract: A new method of intelligent thickness partition was developed based on the extreme point properties of wavelet transform via exploring the wavelet transform algorithm. The author chose the one dimensional continuous wavelet transform algorithm to more accurately recognize the curve’s shape. On applying the wavelet transform to the logging curves, the scale was set to different values according to the different precision needs of different logging curves, which effectively resolved the division and combination of layers problem and improved the thickness partition result a lot. Efficiency of this methodin processing well signal was examined.

Key words: thickness partition, wavelet transform, log curve

中图分类号: 

  • TP182