数字测井在宝清县朝阳地区的应用

黑龙江省宝清县朝阳区赋存的新第三纪褐煤，由于形成时间短，煤层、岩石强度弱，物性差异较小，在勘探工作中存在地层界面划分困难和煤层厚度、结构变化难以控制的问题。本文主要介绍数字测井曲线在黑龙江省宝清县朝阳地区褐煤勘探中的有效应用。依据本区地层的岩石地球物理特征在不同测井曲线中的反映，综合解决了本区的地层分界和煤层中夹石的划分问题。利用人工伽玛曲线及其组合特征，有效地确定第四系和新第三系中新统二者的地层界限，解决了地层划分问题。利用人工伽玛曲线和电性曲线的组合特征，解决本区褐煤中夹石的划分问题，进而解决了煤层结构和分层对比问题。同时说明，钻孔测井曲线反映的物性规律，实际上是地层解释的一种形式，深入研究这些能代表岩、煤层物性特征的测井曲线，能够解决许多实际地质问题。

Application of Digital Logging to Lignite Exploration in Chaoyang District of Baoqing County

Cercening the new tertiary period coal hosted in Chaoyany District, BaoQing county of Heilongjiang Province, the difference of the physical property is very small. This paper mainly discussed the application of digital logging curve to the lignite exploration in thie district. Based on the response of the different logging curves on geophysical character- istics, it solved the problem of the strata division and coal seam division. It also points out that the pattern of the physical property reflected by drill logging curves is actually one of strata interpretations, so if it furtherly studies the key bed and coal seam features of the logging curves, it can solve lots of practical geogical problems.