陷落柱三维地震属性敏感度测试分析
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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.
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.
引文
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[10]ZHANG Shaohong,LIN Changrong.Study on the genesis of karstic collapse column and characteristics of high resolution seismic data in one coal field[J].Journal of Coal Science&En-gineering(China),2008,14(4):648–650.
[11]覃天.多属性相干方法识别微小断层[J].工程地球物理学报,2008,5(5):538–542.
[12]李刚,杨战宁,王玉娇,等.三维地震方差体微机软件开发及解释技术研究[J].中国煤炭地质,2009,21(7):53–56.
[2]程建远,何文欣,朱书阶,等.三维地震资料的精细解释技术[J].煤田地质与勘探,2001,29(6):55–58.
[3]崔若飞,李晋平,庞留彦,等.地震属性技术在煤田地震勘探中的应用[J].中国矿业大学学报.2002,31(3):267–270.
[4]陶文朋,董守华,黄亚平,等.地震属性技术在探测断层和陷落柱中的应用[J].煤炭科学技术,2008,36(12):79–81.
[5]李文,柴志顺.运用地震属性技术解释煤矿陷落柱[J].煤炭技术,2008,27(8):121–122.
[6]张兴平,林建东,唐建益,等.基于三维地震层间属性高精度识别煤矿陷落柱[J].煤炭科学技术,2008,36(7):87–91.
[7]乐友喜.利用模型技术研究地震属性的地质意义[J].物探与化探,2001,25(3):191–197.
[8]马中高,管路平,贺振华,等.利用模型正演优选地震属性进行储层预测[J].石油学报,2003,24(6):35–39.
[9]熊晓军,贺振华,黄德济.三维波动方程正演及模型应用研究[J].石油物探,2005,44(6):554–556.
[10]ZHANG Shaohong,LIN Changrong.Study on the genesis of karstic collapse column and characteristics of high resolution seismic data in one coal field[J].Journal of Coal Science&En-gineering(China),2008,14(4):648–650.
[11]覃天.多属性相干方法识别微小断层[J].工程地球物理学报,2008,5(5):538–542.
[12]李刚,杨战宁,王玉娇,等.三维地震方差体微机软件开发及解释技术研究[J].中国煤炭地质,2009,21(7):53–56.
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