Application of well log normalization in coalfield seismic inversion  

作　　者：Qing-Xi LIN Su-Zhen SHI Shan-Shan LI Li LUO Juan LI Zi-Liang YU 

机构地区：[1]State Key Laboratory of Coal Resources and Mine Safety, China University of Mining & Technology (Beijing), Bering 100083,China

出　　处：《Journal of Coal Science & Engineering(China)》2013年第2期167-173,共7页煤炭学报（英文版）

基　　金：Supported by the National Basic Research Program of China （2009CB219603, 2010CB226800）; the National Natural Science Foundation of China （40874071, 40672104）

摘　　要：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.

关 键 词：well log normalization normalization method frequency histogram seismic inversion 

分 类 号：P631.84[天文地球—地质矿产勘探] P631.4[天文地球—地质学]