高阶统计量相干法在建南构造生物礁储层预测中的应用
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摘要
基于高阶统计量具有检测和表征信号中的非线性等特点,文中提出了用高阶统计量识别和预测生物礁储集层的新方法,其目的是通过高阶统计量检测出生物礁的非高斯性信息,预测生物礁储层的存在。文中针对高阶矩对非高斯信号比较敏感,特别是偏离高斯性的程度越大、高阶矩越大的特性,将二阶相关的相干体算法类推到三阶、四阶,提取主要反映高斯偏离程度的高阶相干切片。结果表明,约90%的地震道都服从广义高斯分布。高阶相干体能较好地预测生物礁体的分布。
As the high-order statistics have the ability to detect and characterize the nonlinearity and other parameters,a new method in which the high-order statistics were used to identify and predict the reef reservoir was proposed in this paper. The propose of the research is to utilize the high-order statistics to detect the non-Gaussian property of the reef so as to predict the existence of the reef reservoir. Regarding the sensitiveness of the high-order moment to non-Gaussian signal,especially the characteristic in which the greater extent the signal deviate from the Gaussianity,the greater the high-order moment is,the second-order related coherence cube algorithm was analogized to third-order and fourth order,so the high-order coherence slices which reflect the Gussian deviation extent was extracted. The research results show that 90 percent seismic traces are subject to generalized Gaussian distribution. The high-order coherence cube could accurately predict the distribution of the reef.
As the high-order statistics have the ability to detect and characterize the nonlinearity and other parameters,a new method in which the high-order statistics were used to identify and predict the reef reservoir was proposed in this paper. The propose of the research is to utilize the high-order statistics to detect the non-Gaussian property of the reef so as to predict the existence of the reef reservoir. Regarding the sensitiveness of the high-order moment to non-Gaussian signal,especially the characteristic in which the greater extent the signal deviate from the Gaussianity,the greater the high-order moment is,the second-order related coherence cube algorithm was analogized to third-order and fourth order,so the high-order coherence slices which reflect the Gussian deviation extent was extracted. The research results show that 90 percent seismic traces are subject to generalized Gaussian distribution. The high-order coherence cube could accurately predict the distribution of the reef.
引文
[1]Zhu Pei min,Wang Jiaying,Zhan Qi.Higher-order sta-tistics of seismic signal and its application.Geophys-ics,2004,69(1):70～78
[2]张丽琴,詹麒,朱培民等.地震散射波长的高阶统计分析.石油地球物理勘探,2004,39(1):45～49
[3]王书明,朱培民,李宏伟等.地球物理学中的高阶统计量方法.北京:科学出版社,2006
[4]熊晓军,贺振华,尹成等.高阶统计量在油气地球物理勘探中的新应用.地质科技情报,2005,24(2):77～84
[5]高云,宋维琪,刘仕友等.地震资料高阶累积量相关法砂体预测.地震地质,2007,29(1):88～94
[6]Walden A T,Hosken J W.The nature of the non-Gaussianity of pri mary reflection coefficients and its significance for deconvolution.Geophys Prop,1986,34(7):1038～1066
[7]Bahorich M,Farmer S.3-D seismic discontinuity for fault and stratigraphic features:The coherence cube.The leading edge,1995,14(10):1053～1058
[8]Marfult KJ,Kirlin R L,Farmer S L et al.3-D seis-mic attributes using a semblance-based coherency al-gorithm.Geophysics,1998,63(4):1150～1165
[9]Marfult KJ,Sudhaker V,Gersztenkorn Aet al.Co-herency calculations in the presence of structural dip.Geophysics,1999,64(1):104～111
[10]熊晓军,尹成,张白林等.一种新的基于高阶统计量的相干体算法.工程地球物理学报,2004,1(3):278～281
[11]尹成,熊晓军,张白林等.基于高阶统计量的相干体算法及砂体沉积演化分析.石油学报,2005,26(4):58～62
[12]陈劲人,银玉光.建南气田长兴组生物礁气藏的勘探实践.石油勘探与开发,1981,12:27～33
[13]梁西文,郑荣才,张涛等.建南构造晚二叠世长兴期点礁和滩的高精度层序地层与储层评价.成都理工大学学报(自然科学版),2006,33(4):407～413
[2]张丽琴,詹麒,朱培民等.地震散射波长的高阶统计分析.石油地球物理勘探,2004,39(1):45～49
[3]王书明,朱培民,李宏伟等.地球物理学中的高阶统计量方法.北京:科学出版社,2006
[4]熊晓军,贺振华,尹成等.高阶统计量在油气地球物理勘探中的新应用.地质科技情报,2005,24(2):77～84
[5]高云,宋维琪,刘仕友等.地震资料高阶累积量相关法砂体预测.地震地质,2007,29(1):88～94
[6]Walden A T,Hosken J W.The nature of the non-Gaussianity of pri mary reflection coefficients and its significance for deconvolution.Geophys Prop,1986,34(7):1038～1066
[7]Bahorich M,Farmer S.3-D seismic discontinuity for fault and stratigraphic features:The coherence cube.The leading edge,1995,14(10):1053～1058
[8]Marfult KJ,Kirlin R L,Farmer S L et al.3-D seis-mic attributes using a semblance-based coherency al-gorithm.Geophysics,1998,63(4):1150～1165
[9]Marfult KJ,Sudhaker V,Gersztenkorn Aet al.Co-herency calculations in the presence of structural dip.Geophysics,1999,64(1):104～111
[10]熊晓军,尹成,张白林等.一种新的基于高阶统计量的相干体算法.工程地球物理学报,2004,1(3):278～281
[11]尹成,熊晓军,张白林等.基于高阶统计量的相干体算法及砂体沉积演化分析.石油学报,2005,26(4):58～62
[12]陈劲人,银玉光.建南气田长兴组生物礁气藏的勘探实践.石油勘探与开发,1981,12:27～33
[13]梁西文,郑荣才,张涛等.建南构造晚二叠世长兴期点礁和滩的高精度层序地层与储层评价.成都理工大学学报(自然科学版),2006,33(4):407～413
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