张集井田层滑构造在三维地震中的表现特征

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英文篇名：Characteristics of Slip-sheet Structure in 3D Seismic Prospecting in Zhangji Minefield 中文刊名：中国煤炭地质 英文刊名：Coal Geology of China 作者：张国明 ; 邱志诚 ; 魏廷双 英文作者：Zhang Guoming ; Qiu Zhicheng and Wei Tingshuang(Zhangji Coalmine ; Huainan Mining Industry(Group) Co.Ltd. ; Huainan ; Anhui 232000) 中文关键词：层滑构造 ; 三维地震 ; 时间剖面 ; 三维地震属性 ; 二维分形 ; 张集井田 英文关键词：slip-sheet structure ; 3D seismic ; time section ; 3D seismic attribute ; 2D fractal ; Zhangji minefield 出版日期：2011-04-25 机构：淮南矿业集团张集矿; 年：2011 期：04 出版单位：中国煤炭地质

摘要

张集井田各煤层普遍发育层滑构造,与正常层序地层相比,层滑构造的存在造成地震时间剖面上的同相轴稀疏、零乱及反射波能量减弱等特征,依据该特征,解释了矿井17248工作面层内一长轴约140m的滑变薄带;根据地震属性曲线异常区附近对应着小断层或者层滑构造、煤层变薄带等地质异常体的特点,对17278运顺方向提取了8煤层二维分形属性曲线,解释其曲线明显异常段是层滑构造的典型响应,影响长度达380m,经验证解释的煤层变薄带范围与实际基本吻合。
The slip-sheet structures are quite common in each coal seam in Zhangji minefield.Comparison with normal sequential strata,slip-sheet structure causes characteristics of phase axis sparse,disorder and attenuation of reflection energy on seismic time sections.Based on the characteristics,interpreted a slip thinning band with 140m major axis.According to characteristics of near the anomaly area of seismic attribute curves may corresponds geologic anomalous bodies of minor faults or slip-sheet structure,coal seam thinning zone,extracts No.8 coal seam 2D fractal attribute curve on No.17278 working face haulage crossheading direction,interpreted the obviously anomalous sector is typical corresponding of slip-sheet structure with influencing length up to 380m.After verification,the interpreted range of coal seam thinning zone is basically tally with actual fact.

引文

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