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三维地震资料在圈定煤层结构变化上的应用
APPLICATION OF 3-D SEISMIC DATA TO DELIMITATION OF VARIATION IN COALSEAM STRUCTURE
【摘要】 随着煤炭开采机械化程度的不断提高,煤层结构的变化对采掘工作的影响日益突出。三维地震资料不仅能够控制落差3~5m以上的断层和幅度大于5m的褶曲,而且还可以利用三维资料所包含的丰富地质信息,包括煤层反射波振幅能量强弱的变化、波阻抗反演等对煤层结构的变化情况进行圈定,以提供煤层结构方面的地质资料。
【Abstract】 With continuous improvement in mechanization of coal mining,the effect of change in coalseam structure on mining has become increasingly remarkable.Three-dimension seismic data can not only be used to figure out faults with drop height over 3-5m and folding of amplitude over 5m,but also provide rich geological information,including variation in reflective wave amplitude and in energy strength,and wave impedance inversion as to locate changes in coalseam structure.
【关键词】 三维地震;
煤层结构;
波组特征;
波阻抗反正演;
煤层结构变化;
【Key words】 3-D seismic; coalseam structure; wave train features; wave impedance inversion and forward; change in coalseam structure;
【Key words】 3-D seismic; coalseam structure; wave train features; wave impedance inversion and forward; change in coalseam structure;
- 【文献出处】 安徽地质 ,Geology of Anhui , 编辑部邮箱 ,2010年03期
- 【分类号】P631.4
- 【被引频次】2
- 【下载频次】34