陷落柱三维地震属性敏感度测试分析  

3D forward modeling and seismic attribute sensitivity test of collapsed column

作　　者：李艳芳 程建远 朱红娟 李刚 

机构地区：[1]中煤科工集团西安研究院,陕西西安710077

出　　处：《煤田地质与勘探》2011年第4期55-58,63,共5页Coal Geology & Exploration

基　　金：国家重大基础研究发展计划(973计划)项目(2006CB202208);大型油气田及煤层气开发科技重大专项课题(2008ZX05040-003);科技部科研院所技术开发研究专项资金项目(NCSTE-2007-JK-ZK-190)

摘　　要：针对煤田陷落柱高分辨率地震探测技术存在诸多技术难点的问题,对包含长轴分别为80 m、25 m、50 m、15 m,陷落柱高度不等、充填物质不一(包括松散充填与空气充填)的4个形状不规则陷落柱三维地震地质模型进行了三维地震单程声波正演数值模拟;提取了包括振幅、能量、频率、波形、方差属性和相干属性等在内的50种地震属性;从目视解释角度优选了包含振幅、能量、时间间隔以及方差和相干在内的18种敏感属性。利用图像分析技术对18种敏感属性与原始地质剖面的相似度进行了分析,获得了对陷落柱敏感地震属性的排序,为今后陷落柱的地震解释提供了理论依据。According to the technical difficulties of high resolution detection technology for coalfield collapse column,the paper conducted forward numeric modeling of one-way seismic wave by using four seismic models for collapsed column of irregular shape,different height and different filling materials（including the loose filling and the air filling） and with major axis of 80m,50m,25m and 15m.50,seismic attributes including amplitude,energy,frequency,waveform,variance and coherence were extracted.18 sensitive attributes including amplitude,energy,time intervals and variance and coherent were selected visually.Similarity analysis was carried out among 18 sensitive attributes and original geological profile using image analysis,then the sensitivity of the 18 attributes was sorted.All these will provide a theoretical basis for collapsed column interpretation.

关 键 词：陷落柱 三维地震 正演模拟 属性敏感度 

分 类 号：P631[天文地球—地质矿产勘探]