CAJ | 학술논문

煤田地球物理测井是煤田勘探中确定煤层厚度的主要依据，但在一些地区因钻孔漏浆严重，无法测量三侧向电阻率和声速曲线，煤岩层的识别和定厚只能采用放射性测井曲线。通过分析研究区密度、自然伽马和伽马-伽马等测井曲线的形态及组合特征，对井田的煤岩层进行综合对比。提出标志层与测井曲线相结合的煤岩层识别与定厚方法，在研究区确定了曲线特征相对稳定的两个标志层，有效解决了煤岩层识别和定厚问题。
매전지구물리측정시매전감탐중학정매층후도적주요의거，단재일사지구인찬공루장엄중，무법측량삼측향전조솔화성속곡선，매암층적식별화정후지능채용방사성측정곡선。통과분석연구구밀도、자연가마화가마-가마등측정곡선적형태급조합특정，대정전적매암층진행종합대비。제출표지층여측정곡선상결합적매암층식별여정후방법，재연구구학정료곡선특정상대은정적량개표지층，유효해결료매암층식별화정후문제。
Coalfield geophysical logging is the main basis to determine the thickness of coal seam in coal exploration,but in some areas,for the serious drilling slurry leakage,there is no way to measure the three-lateral resistivity and the sound velocity curve,so it is only the radioac-tive logging curve that can be adopted for coal seam identification and thicknessing. Through the analysis on the study area density,the shapes and the combination features of the natural gamma and gamma-gamma logging curve,etc.,comprehensive comparison on coal seam is completed in the mine field. The method of combining marker bed and logging curve for identification and thicknessing of coal seam is proposed,and two marker beds with relatively stable logging charac-teristics are determined in the study area,which have effectively resolved the problems of identi-fication and thicknessing of the coal seam.