摘要
在分析大同矿区地球物理电性特征的基础上,采用CSAMT对影响煤层开采的富水异常区进行预测。根据本区煤岩电阻率和测井曲线设计了煤系地层模型,进行了正演模拟,并通过现场试验,结合已知地质、钻孔、测井和三维地震勘探成果完成了试验资料的处理和综合解释;试验结果表明,利用CSAMT能获得精确的地电结构,用于构造、富水区的解释,为煤矿安全生产提供地质依据。
Based on the analysis of geophysical and electrical characteristics of Datong Coal Mine,CSAMT was used to predict the water-rich anomalies affecting coal seam mining.According to the resistivity and logging curve of coal and rock,the coal measure strata model was designed,and its forward modeling was carried out,and through field test and combined with known geology,drilling,logging and3D seismic exploration results,the processing and comprehensive interpretation of test data were completed.The test results showed that the accurate geoelectric structure could be obtained by using CSAMT,which could be used to interpret the structure and water-rich area and provide geological basis for the safety production of coal mine.
作者
张建智
Zhang Jianzhi(Research Institute of Coal Geophysical Exploration of China National Administration of Coal Geology,Zhuozhou,Hebei 072750,China)
出处
《中国煤炭》
2019年第2期33-39,共7页
China Coal
关键词
大同矿区
CSAMT
富水区
煤系地层
预测预报
Datong Coal Mine
CSAMT
water-rich area
coal measure straa
prediction and forecast
