基于奇异值分解的时移地震互均衡方法
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摘要
针对时移地震互均衡处理中的传统匹配滤波算法抗噪能力弱的特点,重新推导匹配滤波方程,引入奇异值分解方法求解,克服系数矩阵的奇异性,同时减少噪声的影响.模拟数据和实际数据都验证了基于奇异值分解匹配滤波较传统匹配滤波算法有更好的抗噪能力.
The conventional match filter in time-lapse seismic cross-equalization is discussed. In order to reduce the influence of noise, new matching filter formula is derived and the method based on SVD is proposed. The effectiveness of the method is tested though theoretical and real data. The result indicates that new method is better than conventional one.
The conventional match filter in time-lapse seismic cross-equalization is discussed. In order to reduce the influence of noise, new matching filter formula is derived and the method based on SVD is proposed. The effectiveness of the method is tested though theoretical and real data. The result indicates that new method is better than conventional one.
引文
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[2]EastwoodJ,AndersonD,BooneT.3Dseismicmonitoring forenhancingthermalrecovery:66thAnnInternat[J].MtgSocExplGeophys,ExpandedAbstracts,1996,2103～2106.
[3]EastwoodJE,JohnstonD,HuangX,CraftK,WorkmanR.Processingforrobusttime lapseseismicanalysis:Gulfof Mexicoexample,Lenafield:68thAnnInternat[J].MtgSoc ExplGeophys,ExpandedAbstracts,1998,20～23.
[4]RossCP.Insidethecorssequalizationblackbox[J].The LeadingEdge,1996,12:1233～1239.
[5]RickettJE,LumleyDE.Corss equalizationdataprocessing fortime lapseseismicreservoirmonitoring:Acasestudyfrom theGulfofMexico[J].Geophysics,2001,66(4):1015～1025.
[6]陈小宏,牟永光.四维地震油藏监测技术及其应用[J].石油地球物理勘探,1998,33(6):707～715.
[7]陈小宏.四维地震数据的归一化方法及实例处理[J].石油学报,1999,20(3):22～26
[8]孙建国.时延地震的现状及发展方向[J].石油物探译丛,1999,2:1～9.
[9]杨勤勇,钟炜.油气田开发中的四维地震技术[J].石油物探,1999,38(3):50～57.
[10]庄东海.四维地震资料处理及其关键[J].地球物理学进展,2001,14(2):.
[11]邓怀群.时间推移地震勘探中的互均化技术[J].天然气工业,2000,20(1):20～24.
[12]Al IsmailiIY.Non linearcross equalizationoftime lapse seismicsurveysusingartificialneuralnetworks[J].PhDthe sisUniversityofLondon,2003.
[13]李家康,姜兰茵,刘宇.共轭梯度法和奇异值分解与降元迭代法的对比讨论[J].地球物理学报,1994,37(增刊):616～619.
[14]李冰,刘洪,李幼铭.三维地震数据离散光滑插值的共轭梯度法[J].地球物理学报,2002,45(5):691～699.
[15]吴小平,徐果明.利用共轭梯度法的电阻率三维反演研究[J].地球物理学报,2002,43(3):420～427.
[16]牟永光.地震勘探资料数字处理方法[M].北京:石油工业出版社.
[17]程乾生.信号数字处理的数学原理[M].北京:石油工业出版社,1993
[18]易维启,李明,云美厚,陈小宏.时移地震方法概论[M].北京:石油工业出版社,2002.
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