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采用灰分与自然伽马正相关归位法,对韩城矿区煤芯进行了归位。并用趋势面分析法对测井资料进行了标准化,利用密度和声波计算了波阻抗曲线。在此基础上,对各井中11号煤层煤芯的煤体结构与相对应的波阻抗、中子、密度、自然伽玛等测井参数的相关性进行了分析。结果表明,声波阻抗和补偿中子测井响应的交汇分析方法,可以较准确地划分出煤体结构。
The coal core of Hancheng mining area was repositioned by the positive correlation regression of ash and gamma ray. Log data were normalized by trend surface analysis. The wave impedance curve was calculated by density and acoustic wave. On this basis, the correlation between the coal body structure and the corresponding wave impedance, neutron, density, gamma ray and other logging parameters of No. 11 seam coal core in each well is analyzed. The results show that the intersection of acoustic impedance and compensated neutron logging response analysis method can be more accurately classified coal body structure.