陷落柱三维地震正演模拟及对比分析
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摘要
设计了在煤层截面上长轴大小分别为80、50、25和15 m的4个陷落柱,其空间形状不规则、顶部发育高度不等,利用三维地震单程声波方程对4个陷落柱进行了正演模拟,对其中一条典型剖面开展了二维地震正演模拟(包括单炮和平面波),并对陷落柱的二维地震与三维地震模拟剖面进行了对比分析。结果表明:相对于二维地震正演模拟而言,陷落柱三维正演模拟反映的陷落柱边界清晰,与实际大小相符,且对小陷落柱的识别能力有一定的提高。
Designed the 3D seismic geological collapse column model of irregular shape and different height,which consists of four collapse columns with the major axis size of 80,50,25 and 15 m,forward modeling the 3D model by using one-way wave equation methods,extracted a typical seismic profile and carried out 2D forward modeling(including single-shot and plane wave),the seismic forward modeling profiles of 3D collapse column and 2D collapse column were compared.The results show that compared with 2D seismic modeling,the stack profile and migration profile of 3D forward modeling reflecting the clear boundary collapse column and consistent with the actual size,it also has an improvement in recognizing small collapse column.
Designed the 3D seismic geological collapse column model of irregular shape and different height,which consists of four collapse columns with the major axis size of 80,50,25 and 15 m,forward modeling the 3D model by using one-way wave equation methods,extracted a typical seismic profile and carried out 2D forward modeling(including single-shot and plane wave),the seismic forward modeling profiles of 3D collapse column and 2D collapse column were compared.The results show that compared with 2D seismic modeling,the stack profile and migration profile of 3D forward modeling reflecting the clear boundary collapse column and consistent with the actual size,it also has an improvement in recognizing small collapse column.
引文
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[13]程建远,王玺瑞,郭晓山,等.东庞矿突水陷落柱三维地震处理效果与对比[J].煤田地质与勘探,2008,36(1):62-65.Cheng Jianyuan,Wang Xirui,Guo Xiaoshan,et al.3D seismic pro-cessing for subsidence column detection applied in Dongpang CoalMine[J].Coal Geology&Exploration,2008,36(1):62-65.
[14]熊晓军.单程波动方程地震数值模拟新方法研究[D].成都:成都理工大学,2007.
[15]肖开宇,胡祥云.正演模拟技术在地震解释中的应用[J].工程地球物理学报,2009,6(4):459-464.Xiao Kaiyu,Hu Xiangyun.Forward seismic modeling technology inthe application of interpretation[J].Chinese Journal of EngineeringGeophysics,2009,6(4):459-464.
[16]张广忠,程建远,李林元,等.东庞煤矿突水陷落柱边界的综合解释[J].煤炭学报,2006,31(S0):88-92.Zhang Guangzhong,Cheng Jianyuan,Li Linyuan,et al.Integratedinterpretation of inrushing collapse column’s boundary in Dong-pang Coal Mine[J].Journal of China Coal Society,2006,31(S0):88-92.
[17]郭达志,盛业华,金学林,等.岩溶陷落柱综合探测的基本原理与方法[J].煤炭学报,1994,19(6):626-633.Guo Dazhi,Sheng Yehua,Jin Xuelin,et al.Basic principles andmethods for survey of karst pillars[J].Journal of China Coal Socie-ty,1994,19(6):626-633.
[2]勾精为,程增庆,陈加林.三维地震探测陷落柱的可行性研究[A].计算机在地学中的应用国际讨论会论文摘要[C].北京:地矿部北京计算中心,1991:150-155.
[3]张时元,程建远,何文欣,等.三维地震在陷落柱探测中的应用[J].中国煤田地质,1997,9(S0):29-32.Zhang Shiyuan,Cheng Jianyuan,He Wenxin,et al.The applicationof 3D seismic exploration to detect the collapsed column[J].CoalGeology of China,1997,9(S0):29-32.
[4]杨德义,王赟,王辉.陷落柱的绕射波[J].石油物探,2000,39(4):82-86.Yang Deyi,Wang Yun,Wang Hui.Diffraction waves from fallen pillars[J].Geophysical Prospecting for Petroleum,2000,39(4):82-86.
[5]杨德义,彭苏萍,常锁亮,等.特殊剖面在陷落柱研究中的应用[J].煤田地质与勘探,2002,30(6):47-49.Yang Deyi,Peng Suping,Chang Suoliang,et al.The application ofspecial seismic section in the subsiding column searching[J].CoalGeology&Exploration,2002,30(6):47-49.
[6]师素珍,方惠明,郝海波,等.煤矿岩溶陷落柱的地震资料解释[J].中国煤炭地质,2009,21(6):59-61.Shi Suzhen,Fang Huiming,Hao Haibo,et al.Seismic interpretationof subsided column in coalmines[J].Coal Geology of China,2009,21(6):59-61.
[7]吴守华,周国兴,杨素霞,等.陷落柱地震响应特征分析[J].煤田地质与勘探,2004,32(3):52-54.Wu Shouhua,Zhou Guoxing,Yang Suxia,et al.Analysis for the seis-mic response characteristics of collapse column[J].Coal Geology&Exploration,2004,32(3):52-54.
[8]李飞,张智,曹志勇,等.陷落柱地震波场特征分析[J].地球物理学进展,2009,24(3):886-892.Li Fei,Zhang Zhi,Cao Zhiyong,et al.Analysis on seismic features ofsubsided column[J].Progress in Geophysics,2009,24(3):886-892.
[9]李之奋,董守华,李东会.陷落柱地震数值模拟响应特征分析[J].能源技术与管理,2007(6):36-39.Li Zhifen,Dong Shouhua,Li Donghui.Analysis for the characteristicsin the numerical simulation of the seismic wave field of collapse col-umn[J].Energy Technology and Management,2007(6):36-39.
[10]周国兴,杨文钦,杨文强.小陷落柱异常波提取及其特征的模型研究[J].煤田地质与勘探,2006,34(5):63-65.Zhou Guoxing,Yang Wenqin,Yang Wenqiang.Modeling researchon characteristics and extraction method of abnormal seismic waveson small scale karst collapse column[J].Coal Geology&Explora-tion,2006,34(5):63-65.
[11]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.Xiong Xiaojun,He Zhenhua,Huang Deji.The application of 3-Dwave equation forward and modeling[J].Geophysical Prospectingfor Petroleum,2005,44(6):554-556.
[12]Yang Jinhua,Liu Tao,Tang Genyang,et al.Modeling seismic wavepropagation within complex structures[J].Applied Geophysics,2009,6(1):30-41.
[13]程建远,王玺瑞,郭晓山,等.东庞矿突水陷落柱三维地震处理效果与对比[J].煤田地质与勘探,2008,36(1):62-65.Cheng Jianyuan,Wang Xirui,Guo Xiaoshan,et al.3D seismic pro-cessing for subsidence column detection applied in Dongpang CoalMine[J].Coal Geology&Exploration,2008,36(1):62-65.
[14]熊晓军.单程波动方程地震数值模拟新方法研究[D].成都:成都理工大学,2007.
[15]肖开宇,胡祥云.正演模拟技术在地震解释中的应用[J].工程地球物理学报,2009,6(4):459-464.Xiao Kaiyu,Hu Xiangyun.Forward seismic modeling technology inthe application of interpretation[J].Chinese Journal of EngineeringGeophysics,2009,6(4):459-464.
[16]张广忠,程建远,李林元,等.东庞煤矿突水陷落柱边界的综合解释[J].煤炭学报,2006,31(S0):88-92.Zhang Guangzhong,Cheng Jianyuan,Li Linyuan,et al.Integratedinterpretation of inrushing collapse column’s boundary in Dong-pang Coal Mine[J].Journal of China Coal Society,2006,31(S0):88-92.
[17]郭达志,盛业华,金学林,等.岩溶陷落柱综合探测的基本原理与方法[J].煤炭学报,1994,19(6):626-633.Guo Dazhi,Sheng Yehua,Jin Xuelin,et al.Basic principles andmethods for survey of karst pillars[J].Journal of China Coal Socie-ty,1994,19(6):626-633.
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