淮南矿区三维地震探采对比效果与实例分析

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英文篇名：Comparing 3D seismic prospecting with mining verification and case study in Huainan coal mine 中文刊名：煤田地质与勘探 英文刊名：Coal Geology & Exploration 作者：吕霖 英文作者：LU Lin(Safe Mining Research Institute of Huainan Mining Group ; Huainan 232001 ; China) 中文关键词：淮南矿区 ; 三维地震 ; 探采对比 ; 实例分析 英文关键词：Huainan coal mine ; 3-dimensional seismic ; comparison between survey and mining ; case study. 出版日期：2010-08-25 机构：淮南矿业集团安全开采总院; 年：2010 期：04 出版单位：煤田地质与勘探

摘要

淮南矿区十多年来开展的煤矿采区三维地震面积达到254.56 km2,占井田面积的46.14%。通过对以往三维地震成果1 030个验证点的统计分析,拟定了三维地震成果验证准确率的评价标准;据此得出常规三维地震勘探对13-1煤层中3 m以上断层解释的准确率达62.38%,11-2煤层中2 m以上断层解释合格率约46.74%;而高密度三维地震勘探对11-2煤层中2 m以上断层解释的准确率达到85.71%。结合实例研究,分析了小断层、煤层变薄区在三维地震资料上的显示特征与探采对比效果。
3D seismic survey has been carried out in 254.56 km2 in Huainan coal mine area,which took up 46.14% of the total coal mine field.After analyzing the 1 030 verification points of the 3D seismic surveys we did in the past,we set up a standard for evaluating the accuracy of the 3D seismic interpretation results.Using this standard,we found that the accuracy can reach 62.38% when interpreting the faults of more than 3 m in 13-1 coal seam using general 3D seismic survey,and the accuracy changes to 46.74% while interpreting faults of more than 2m in 11-2 coal seam,but when applying high density 3D seismic survey to interpret faults bigger than 2m in 11-2 coal seam,this accuracy can increase to 85.71%.Based on case study on comparing seismic survey with mining,we analyzed the characteristics of small and median faults and thin-out belts of coal seam on the 3D seismic profile,and checked the validity.

引文

[1]刘天放,彭苏萍,钱建伟,等.中国采区三维地震勘探的进展[C]//中国地球物理学会第十八届年会论文集.北京:中国地球物理学会,2002.
    [2]陈辉.三维地震精细构造解释技术在顾桥矿的应用与研究[M].徐州:中国矿业大学出版社,2009.
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