Application of well log normalization in coalfield seismic inversion

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• 作者：Qing-Xi Lin (1)
  Su-Zhen Shi (1)
  Shan-Shan Li (1)
  Li Luo (1)
  Juan Li (1)
  Zi-Liang Yu (1)
  
• 关键词：well log normalization ; normalization method ; frequency histogram ; seismic inversion
• 刊名：Journal of Coal Science and Engineering (China)
• 出版年：2013
• 出版时间：June 2013
• 年：2013
• 卷：19
• 期：2
• 页码：167-173
• 全文大小：914KB
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• 作者单位：Qing-Xi Lin (1)
  Su-Zhen Shi (1)
  Shan-Shan Li (1)
  Li Luo (1)
  Juan Li (1)
  Zi-Liang Yu (1)
  
  1. State Key Laboratory of Coal Resources and Mine Safety, China University of Mining & Technology (Beijing), Beijing, 100083, China
  
• ISSN：1866-6566

文摘

During the process of coal prospecting and exploration, different measurement time, different logging instruments and series can lead to systematic errors in well logs. Accordingly, all logging curves need to be normalized in the mining area. By studying well-logging normalization methods, and focusing on the characteristics of the coalfield, the frequency histogram method was used in accordance with the condition of the Guqiao Coal Mine. In this way, the density and sonic velocity at marker bed in the non-key well were made to close to those in the key well, and were eventually equal. Well log normalization was completed when this method was applied to the entire logging curves. The results show that the scales of logging data were unified by normalizing coal logging curves, and the logging data were consistent with wave impedance inversion data. A satisfactory inversion effect was obtained.