基于匹配追踪的薄层自动解释方法
|
摘要
本文提出一种基于匹配追踪的稀疏脉冲反褶积方法,实现了薄互层反射界面自动提取。对于单层问题,建立不同位置、不同厚度的等幅同号和等幅异号的薄层反射系数模式,将它们的地震响应作为一组基元函数,应用匹配追踪技术,对实际地震道进行稀疏分解,实现薄层顶、底反射系数的自动拾取;对于薄互层问题,建立可能的薄层反射系数位置模式,通过与实际地震道进行匹配,求取每一种反射系数位置模式所对应的最优反射系数幅值和匹配误差,将匹配误差最小的反射系数位置模式作为最终的薄层自动解释结果。通过楔状体模型研究,验证了该方法的有效性。在四川盆地东部A区的石炭系碳酸盐岩厚度定量描述研究中,预测厚度与实钻结果吻合较好。
This paper proposes a new sparse deconvolution method based on matching pursuit,which can be used to automatically interpret thin-beds.For single layer thin-bed,we construct the thin-bed reflection coefficient models of equal-magnitude-same-sign and equal-magnitude-opposite-sign with different position and thickness.Taking their seismic response as a set of atom functions,we decompose real seismic trace data by matching pursuit,and the thin-bed top and bottom are picked automatically.For multiple thin-bed layers,we construct all possible thin-bed reflection coefficient models.Then we match the models with the real seismic trace data,and calculate the optimal reflection coefficient amplitude and the corresponding matching error.Finally,we treat the reflection coefficient model with the minimum matching error as the thin bed interpretation result.The wedge model synthetic data test proves that this method is valid.The method is also used to predict the carboniferous stratum thickness in a survey of Sichuan Basin,and the thickness prediction matches very well with real-drilled results.
This paper proposes a new sparse deconvolution method based on matching pursuit,which can be used to automatically interpret thin-beds.For single layer thin-bed,we construct the thin-bed reflection coefficient models of equal-magnitude-same-sign and equal-magnitude-opposite-sign with different position and thickness.Taking their seismic response as a set of atom functions,we decompose real seismic trace data by matching pursuit,and the thin-bed top and bottom are picked automatically.For multiple thin-bed layers,we construct all possible thin-bed reflection coefficient models.Then we match the models with the real seismic trace data,and calculate the optimal reflection coefficient amplitude and the corresponding matching error.Finally,we treat the reflection coefficient model with the minimum matching error as the thin bed interpretation result.The wedge model synthetic data test proves that this method is valid.The method is also used to predict the carboniferous stratum thickness in a survey of Sichuan Basin,and the thickness prediction matches very well with real-drilled results.
引文
[1]Widess M B.How thin is a thin bed?Geophysics,1973,38(6):1176～1180
[2]Robertson J D and Nogami H H.Complex seismictrace analysis of thin beds.Geophysics,1984,49(4):344～352
[3]Taner M T,Koehler F and Sheriff R E.Complex seismictrace analysis.Geophysics,1979,44(6):1041～1063
[4]Chung H and Lawton D C.Frequency characteristicsof seismic reflections from thin beds.Canadian Jour-nal of Exploration Geophysicists,1995,31(12):32～37
[5]黄真萍,王晓华,王云专.薄层地震属性参数分析和厚度预测.石油物探,1997,36(3):28～38Huang Zhenping,Wang Xiaohua,Wang Yunzhuan.Pa-rameter analysis of seismic attribute and thickness predic-tion for thin bed.GPP,1997,36(3):28～38
[6]邵治龙,贺振华,黄德济.小波变换与最大熵法联合计算薄层厚度.石油地球物理勘探,1998,33(2):204～213Shao Zhilong,He Zhenhua and Huang Deji.Thin-layerthickness estimation using wavelet transform and maxi-mum entropy method.OGP,1998,33(2):204～213
[7]汪恩华,贺振华,李庆忠.薄储层厚度计算新方法探索.物探化探计算技术,2001,23(1):22～25Wang Enhua,He Zhenhua,Li Qingzhong.An ap-proach to the thickness determination of thin beds.Computing Techniques for Geophysical and Geo-chemical Exploration,2001,23(1):22～25
[8]吴勇,聂凯轩等.拓频技术在砂体预测中的应用.石油地球物理勘探,2011,46(增刊1):80～83Wu Yong,Nie Kaixuan et al.Frequency-extension inoil sand prediction.OGP,2011,46(S 1):80～83
[9]黄文锋,姚逢昌,李宏兵.薄互层调谐规律研究与净厚度估算.石油地球物理勘探,2012,47(4):584～591Huang Wenfeng,Yao Fengchang and Li Hongbing.Regularities of tuning effects of thin interbedded lay-ers and their net thickness determination.OGP,2012,47(4):584～591
[10]李景叶.薄互层油气藏时移地震反演数据解释.石油地球物理勘探,2012,47(3):442～451Li Jingye.Time-lapse seismic interpretation on in-versed impedance data of thin inter-layer reservoir.OGP,2012,47(3):442～451
[11]Marfurt K J and Kirlin R L.Narrow-band spectral a-nalysis and thin-bed tuning.Geophysics,2001,66(4):1274～1283
[12]Partyka G A.Spectral Decomposition.SEG Distin-guished Lecture,2005
[13]Partyka G A,Gridley J A and Lopez J A.Interpreta-tional aspects of spectral decomposition in reservoircharacterization.The Leading Edge,1999,18(3):353～360
[14]周开明.薄层的二阶功率谱特征研究及厚度预测.石油物探,2008,47(1):30～34Zhou Kaiming.Research on features of thin layer andits thickness estimation by second order power spec-trum.GPP,2008,47(1):30～34
[15]Sun Luping,Zheng Xiaodong,Li Jingsong et al.Thin-bed thickness calculation formula and its approxima-tion using peak frequency.Applied Geophysics,2009,6(3):234～240
[16]Sun Luping,Zheng Xiaodong et al.Quantitative pre-diction and application of channel sand bodies basedon seismic peak attributes in the frequency domain.Applied Geophysics,2010,7(1):10～17
[17]Mallat S,Zhang Z.Matching pursuits with time-fre-quency dictionaries.IEEE Transactions on SignalProcessing,1993,41(12):3397～3415
[18]Charles I,John P.Layer-thickness determination andstratigraphic interpretation using spectral inversion:Theory and application.Geophysics,2008,73(2):37～48
[2]Robertson J D and Nogami H H.Complex seismictrace analysis of thin beds.Geophysics,1984,49(4):344～352
[3]Taner M T,Koehler F and Sheriff R E.Complex seismictrace analysis.Geophysics,1979,44(6):1041～1063
[4]Chung H and Lawton D C.Frequency characteristicsof seismic reflections from thin beds.Canadian Jour-nal of Exploration Geophysicists,1995,31(12):32～37
[5]黄真萍,王晓华,王云专.薄层地震属性参数分析和厚度预测.石油物探,1997,36(3):28～38Huang Zhenping,Wang Xiaohua,Wang Yunzhuan.Pa-rameter analysis of seismic attribute and thickness predic-tion for thin bed.GPP,1997,36(3):28～38
[6]邵治龙,贺振华,黄德济.小波变换与最大熵法联合计算薄层厚度.石油地球物理勘探,1998,33(2):204～213Shao Zhilong,He Zhenhua and Huang Deji.Thin-layerthickness estimation using wavelet transform and maxi-mum entropy method.OGP,1998,33(2):204～213
[7]汪恩华,贺振华,李庆忠.薄储层厚度计算新方法探索.物探化探计算技术,2001,23(1):22～25Wang Enhua,He Zhenhua,Li Qingzhong.An ap-proach to the thickness determination of thin beds.Computing Techniques for Geophysical and Geo-chemical Exploration,2001,23(1):22～25
[8]吴勇,聂凯轩等.拓频技术在砂体预测中的应用.石油地球物理勘探,2011,46(增刊1):80～83Wu Yong,Nie Kaixuan et al.Frequency-extension inoil sand prediction.OGP,2011,46(S 1):80～83
[9]黄文锋,姚逢昌,李宏兵.薄互层调谐规律研究与净厚度估算.石油地球物理勘探,2012,47(4):584～591Huang Wenfeng,Yao Fengchang and Li Hongbing.Regularities of tuning effects of thin interbedded lay-ers and their net thickness determination.OGP,2012,47(4):584～591
[10]李景叶.薄互层油气藏时移地震反演数据解释.石油地球物理勘探,2012,47(3):442～451Li Jingye.Time-lapse seismic interpretation on in-versed impedance data of thin inter-layer reservoir.OGP,2012,47(3):442～451
[11]Marfurt K J and Kirlin R L.Narrow-band spectral a-nalysis and thin-bed tuning.Geophysics,2001,66(4):1274～1283
[12]Partyka G A.Spectral Decomposition.SEG Distin-guished Lecture,2005
[13]Partyka G A,Gridley J A and Lopez J A.Interpreta-tional aspects of spectral decomposition in reservoircharacterization.The Leading Edge,1999,18(3):353～360
[14]周开明.薄层的二阶功率谱特征研究及厚度预测.石油物探,2008,47(1):30～34Zhou Kaiming.Research on features of thin layer andits thickness estimation by second order power spec-trum.GPP,2008,47(1):30～34
[15]Sun Luping,Zheng Xiaodong,Li Jingsong et al.Thin-bed thickness calculation formula and its approxima-tion using peak frequency.Applied Geophysics,2009,6(3):234～240
[16]Sun Luping,Zheng Xiaodong et al.Quantitative pre-diction and application of channel sand bodies basedon seismic peak attributes in the frequency domain.Applied Geophysics,2010,7(1):10～17
[17]Mallat S,Zhang Z.Matching pursuits with time-fre-quency dictionaries.IEEE Transactions on SignalProcessing,1993,41(12):3397～3415
[18]Charles I,John P.Layer-thickness determination andstratigraphic interpretation using spectral inversion:Theory and application.Geophysics,2008,73(2):37～48
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心