粗集理论在地震储层预测中的应用
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摘要
在地震储层预测中,可采用的地震属性种类繁多,但太多地震属性常常会起到干扰作用,影响储层的预测精度.因此,为提高地震储层预测精度,把粗糙集理论融入到地震属性的优化中,利用粗糙集理论所具有的提取有用属性、简化信息处理的能力,优选出地震属性中的敏感属性是本文的研究目的.本文采用了一种基于属性方差的自组织神经网络量化方法,并运用基于区别矩阵的属性频率约简算法对地震属性进行优选.实例分析表明:该方法可行有效,可以最大限度地删除冗余地震属性,用优选出的敏感属性组合对多种储层参数进行预测均已取得了较好的效果.
In the study of seismic reservoir predication,lots of seismic attributes are utilizable,but too many attributes could affect the accuracy of reservoir predication.So,for the sake of improving the accuracy of seismic reservoir predication,this stady utilizes the rough set theory to extract useful attributes and simplify information processing,to sort out significative attributes from seismic attributes.We use a self-organized neural network quantization method that is dependent on the variance of seismic attributes,and optimize seismic attributes by the discernibility matrix attributes frequency reduction algorithm.The example indicates:that this method is very effective,and can delete utmostly redundant seismic attributes.The multiple reservoir parameters are well predicated by significative attributes is very good.
In the study of seismic reservoir predication,lots of seismic attributes are utilizable,but too many attributes could affect the accuracy of reservoir predication.So,for the sake of improving the accuracy of seismic reservoir predication,this stady utilizes the rough set theory to extract useful attributes and simplify information processing,to sort out significative attributes from seismic attributes.We use a self-organized neural network quantization method that is dependent on the variance of seismic attributes,and optimize seismic attributes by the discernibility matrix attributes frequency reduction algorithm.The example indicates:that this method is very effective,and can delete utmostly redundant seismic attributes.The multiple reservoir parameters are well predicated by significative attributes is very good.
引文
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[15]赵荣泳,张浩,李翠玲,等.粗糙集连续属性离散化模型研究与应用要点分析[J].计算机工程与应用,2005,41(8):40~42.Zhao R Y,Zhang H,Li C L,et al.The study andapplication of discretization model for continuous attributevalues in rough set theory[J].Computer Engineering andApplications,2005,41(8):40~42.
[16]古发明,尹成,丁峰.应用粗集理论优选地震属性的方法研究[J].西南石油大学学报,2007,29(增):1~4.Gu F M,Yin C,Ding F.Appling rough set theory tooptimize seismic attributes[J].Journal of SouthwestPetroleum University,2007,29:1~4.
[17]张力木.基于粗糙集的有序问题及数据约简的研究[D].吉林长春:吉林大学软件学院,2005.Zhang L M.The research of ordering problems and datareduction based on rough sets[D].Changchun Jilin:SoftWareCollege of Jilin University,2005.
[18]魏艳,尹成,丁峰,等.地震多属性综合分析的应用研究[J].石油物探,2007,46(1):42~47.Wei Y,Yin C,Ding F,et al.Synthetic analysis of seismicmulti-attribute and its application[J].GeophysicalProspecting for Petroleum,2007,46(1):42~47.
[19]鲍祥生.时移地震属性分析技术的研究及应用[D].四川成都:西南石油大学资源与环境学院,2006.Bao X S.Study and application of TL seismic attributionanalysis technique[D].Chengdu Sichuan:Resources andEnvironment Department,SouthWest PetroleumUniversity,2006.
[2]吕公河,于常青,董宁.叠后地震属性分析在油气田勘探开发中的应用[J].地球物理学进展,2006,21(1):161~166.LüG H,Yu C Q,Dong N.The application of post-stackseismic attribute analysis in the oil-gas exploration anddevelopment[J].Progress in Geophysics(in Chinese),2006,21(1):161~166.
[3]王利田,苏小军,管仁顺,等.地震属性分析在彩16井区储层预测中的应用[J].地球物理学进展,2006,21(3):922~925.Wang L T,Su X J,Guan R S,et al.The appliation of seismicattribute analyses in predicating reservoir of cai 16 area[J].Progress in Geophysics(in Chinese),2006,21(3):922~925.
[4]张延玲,杨长春,贾曙光.地震属性技术的研究和应用[J].地球物理学进展,2005,20(4):1129~1133.Zhang Y L,Yang C C,Jia S G.The application of the seismicattributes[J].Progress in Geophysics(in Chinese),2005,20(4):1129~1133.
[5]乐友喜,王永刚,张军华.由地震属性向储层参数转换的综合效果分析[J].石油物探,2002,41(2):202~206.Yue Y X,Wang Y G,Zhang J H.A comprehensive effectanalysis of conversion from seismic attributes to reservoirparameters[J].Geophysical Prospecting For Petroleum,2002,41(2):202~206.
[6]陈军,陈岩.地震属性分析在储层预测中的应用[J].石油物探,2001,40(3):94~99.Chen J,Chen Y.Application of seismic attribute analysis inreservoir prediction[J].Geophysical Prospecting ForPetroleum,2001,40(3):94~99.
[7]鲍祥生,尹成,赵伟,等.储层预测的地震属性优选技术研究[J].石油物探,2006,45(1):28~33.Bao X S,Yin C,Zhao W,et al.Optimizing selection ofseismic attributes in reservoir prediction[J].GeophysicalProspecting For Petroleum,2006,45(1):28~33.
[8]杨占龙,彭立才,陈启林,等.地震属性分析与岩性油气藏勘探[J].石油物探,2007,46(2):131~136.Yang Z L,Peng L C,Chen Q L,et al.Seismic attributesanalysis and lithological reservoir exploration[J].GeophysicalProspecting for Petroleum,2007,46(2):131~136.
[9]高隽.智能信息处理方法导论[M].北京:机械工业出版社,2004:254~280.Gao J.Introduction to intelligent information processing[M].Beijing:China Machine Press,2004:254~280.
[10]Pawlak Z.Rough set[J].International Journal of Computerand Information Science,1982,11(5):341~356.
[11]Pawlak Z.Rough set-theoretical aspacts of reasoning aboutdata[M].Kluwer Academic Publishers,1991.
[12]陈遵德.储层地震属性优化方法[M].北京:石油工业出版社,1998.Chen Z D.Introduction to reservoir seismic attributeoptimization merhod[M].Berijing:Petroleum IndustryPress,1998.
[13]王洪斌,杨香兰,王洪瑞.一种改进的RBF神经网络学习算法[J].系统工程与电子技术,2002,24(6):103~105.Wang H B,Yang X L,Wang H R.An improved learningalgorithm for RBF neural networks[J].Systems Engineeringand Electronics,2002,24(6):103~105.
[14]周俊武,孙传尧,王福利.径向基函数(RBF)网络的研究及实现[J].矿治,2001,10(4):71~75.Zhou J W,Sun C Y,Wang F L.Study and implement ofradial basis function neural network[J].Mining andMetallurgy,2001,10(4):71~75.
[15]赵荣泳,张浩,李翠玲,等.粗糙集连续属性离散化模型研究与应用要点分析[J].计算机工程与应用,2005,41(8):40~42.Zhao R Y,Zhang H,Li C L,et al.The study andapplication of discretization model for continuous attributevalues in rough set theory[J].Computer Engineering andApplications,2005,41(8):40~42.
[16]古发明,尹成,丁峰.应用粗集理论优选地震属性的方法研究[J].西南石油大学学报,2007,29(增):1~4.Gu F M,Yin C,Ding F.Appling rough set theory tooptimize seismic attributes[J].Journal of SouthwestPetroleum University,2007,29:1~4.
[17]张力木.基于粗糙集的有序问题及数据约简的研究[D].吉林长春:吉林大学软件学院,2005.Zhang L M.The research of ordering problems and datareduction based on rough sets[D].Changchun Jilin:SoftWareCollege of Jilin University,2005.
[18]魏艳,尹成,丁峰,等.地震多属性综合分析的应用研究[J].石油物探,2007,46(1):42~47.Wei Y,Yin C,Ding F,et al.Synthetic analysis of seismicmulti-attribute and its application[J].GeophysicalProspecting for Petroleum,2007,46(1):42~47.
[19]鲍祥生.时移地震属性分析技术的研究及应用[D].四川成都:西南石油大学资源与环境学院,2006.Bao X S.Study and application of TL seismic attributionanalysis technique[D].Chengdu Sichuan:Resources andEnvironment Department,SouthWest PetroleumUniversity,2006.
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