匹配追踪保幅地震AVF剖面及同频率剖面的构建
摘要
地震信号分频技术是寻找薄层及小尺度地质目标的必备工具。Morlet小波变换由于其优良的时频局部化性能,被广泛应用于地震资料分频处理当中。但是,Morlet小波变换方法得到的振幅随频率变化(AVF)剖面从低频到高频存在同相轴分叉现象,同频率剖面也存在谐波效应。根据匹配追踪算法的特点,提出了一种保幅AVF剖面及同频率剖面构建方法。该方法利用地震匹配追踪分解的时频原子构建AVF剖面,并从中提取给定频率的信号,每个时频原子的贡献由该时频原子在给定频率位置的谱值大小决定,获得的同频率剖面避免了常规滤波分频方法造成的平行同相轴假象,分频效果更理想。另外,该方法得到的AVF剖面上没有出现同相轴发散、漂移现象,可以更方便地进行AVF分析。
引文
[1]唐湘蓉,蔡涵鹏,贺振华.地震波高频信息在薄层砂体预测中的应用[J].石油物探,2012,51(3):244-250Tang X R,Cai H P,He Z H.Thin-bed sand bodyprediction based on seismic wave high-frequency in-formation[J].Geophysical Prospecting for Petrole-um,2012,51(3):244-250
[2]胥德平,郭科,文晓涛,等.基于广义S变换和JADE算法的储层识别[J].石油物探,2011,50(4):319-323Xu D P,Guo K,Wen X T,et al.Reservoir identifica-tion based on GST and JADE algorithm[J].Geo-physical Prospecting for Petroleum,2011,50(4):319-323
[3]张志让,杨建勋,李梅,等.频谱成像技术在特殊地质体储层预测中的应用研究[J].石油物探,2011,50(1):69-75Zhang Z R,Yang J X,Li M,et al.Application of fre-quency spectrum imaging technique for reservoirprediction of special geological bodies[J].Geophysi-cal Prospecting for Petroleum,2011,50(1):69-75
[4]Haitao R,Gennady G,Fred H.Amplitude versusfrequency variations in thinly layered porous rocks[J].Expanded Abstracts of 78th Annual InternatSEG Mtg,2008,1744-1748
[5]Haitao R,Gennady G,Fred H.Poroelastic analysisof amplitude-versus-frequency variations[J].Geo-physics,2009,74(6):41-48
[6]Avijit C,David O.Frequency-time decomposition ofseismic data using wavelet-based methods[J].Geo-physics,1995,60(6):1906-1916
[7]龚洪林,王振卿,李录明,等.应用地震分频技术预测碳酸盐岩储层[J].地球物理学进展,2008,23(1):129-135Gong H L,Wang Z Q,Li L M,et al.Predicting car-bonate reservoir by applying seismic spectral decom-position technique[J].Progress in Geophysics,2008,23(1):129-135
[8]魏文,王小杰,李红梅.基于叠前道集小波域Q值求取方法研究[J].石油物探,2011,50(4):355-360Wei W,Wang X J,Li H M.Study on extractionmethod for Q based on pre-stack gather in waveletdomain[J].Geophysical Prospecting for Petroleum,2011,50(4):355-360
[9]Marcilio C M,Kurt J M,Paulo R S,et al.Wavelettransform Teager-Kaiser energy applied to a carbon-ate field in Brazil[J].The Leading Edge,2009,28(3):708-713
[10]Mallat S,Zhang Z.Matching pursuit with time-fre-quency dictionaries[J].IEEE transactions on signalprocessing,1993,41(12):3397-3415
[11]张繁昌,李传辉.基于正交时频原子的地震信号快速匹配追踪[J].地球物理学报,2012,55(1):277-283Zhang F C,Li C H.Orthogonal time-frequency atombased fast matching pursuit for seismic signals[J].Chinese Journal of Geophysics(in Chinese),2012,55(1):277-283
[12]Castagna J P,Sun S J,Siegfried R W.Instantaneousspectral analysis:Detection of low-frequency shad-ows associated with hydrocarbons[J].The LeadingEdge,2003,22(2):120-127
[13]李传辉,张繁昌.地震信号可变分辨率匹配追踪频谱成像方法[J].石油物探,2012,51(3):213-218Li C H,Zhang F C.Variable resolution matchingpursuit spectrum imaging of seismic signals[J].Geo-physical Prospecting for Petroleum,2012,51(3):213-218
[14]Wang Y H.Seismic time-frequency spectral decom-position by matching pursuit[J].Geophysics,2007,72(1):13-20
[15]魏文,王兴谋,李红梅,等.基于地震波衰减的特征属性重构方法[J].石油物探,2012,51(3):219-225Wei W,Wang X M,Li H M,et al.Method of charac-teristics attributes reconstruction based on seismicwave attenuation[J].Geophysical Prospecting forPetroleum,2012,51(3):219-225
[2]胥德平,郭科,文晓涛,等.基于广义S变换和JADE算法的储层识别[J].石油物探,2011,50(4):319-323Xu D P,Guo K,Wen X T,et al.Reservoir identifica-tion based on GST and JADE algorithm[J].Geo-physical Prospecting for Petroleum,2011,50(4):319-323
[3]张志让,杨建勋,李梅,等.频谱成像技术在特殊地质体储层预测中的应用研究[J].石油物探,2011,50(1):69-75Zhang Z R,Yang J X,Li M,et al.Application of fre-quency spectrum imaging technique for reservoirprediction of special geological bodies[J].Geophysi-cal Prospecting for Petroleum,2011,50(1):69-75
[4]Haitao R,Gennady G,Fred H.Amplitude versusfrequency variations in thinly layered porous rocks[J].Expanded Abstracts of 78th Annual InternatSEG Mtg,2008,1744-1748
[5]Haitao R,Gennady G,Fred H.Poroelastic analysisof amplitude-versus-frequency variations[J].Geo-physics,2009,74(6):41-48
[6]Avijit C,David O.Frequency-time decomposition ofseismic data using wavelet-based methods[J].Geo-physics,1995,60(6):1906-1916
[7]龚洪林,王振卿,李录明,等.应用地震分频技术预测碳酸盐岩储层[J].地球物理学进展,2008,23(1):129-135Gong H L,Wang Z Q,Li L M,et al.Predicting car-bonate reservoir by applying seismic spectral decom-position technique[J].Progress in Geophysics,2008,23(1):129-135
[8]魏文,王小杰,李红梅.基于叠前道集小波域Q值求取方法研究[J].石油物探,2011,50(4):355-360Wei W,Wang X J,Li H M.Study on extractionmethod for Q based on pre-stack gather in waveletdomain[J].Geophysical Prospecting for Petroleum,2011,50(4):355-360
[9]Marcilio C M,Kurt J M,Paulo R S,et al.Wavelettransform Teager-Kaiser energy applied to a carbon-ate field in Brazil[J].The Leading Edge,2009,28(3):708-713
[10]Mallat S,Zhang Z.Matching pursuit with time-fre-quency dictionaries[J].IEEE transactions on signalprocessing,1993,41(12):3397-3415
[11]张繁昌,李传辉.基于正交时频原子的地震信号快速匹配追踪[J].地球物理学报,2012,55(1):277-283Zhang F C,Li C H.Orthogonal time-frequency atombased fast matching pursuit for seismic signals[J].Chinese Journal of Geophysics(in Chinese),2012,55(1):277-283
[12]Castagna J P,Sun S J,Siegfried R W.Instantaneousspectral analysis:Detection of low-frequency shad-ows associated with hydrocarbons[J].The LeadingEdge,2003,22(2):120-127
[13]李传辉,张繁昌.地震信号可变分辨率匹配追踪频谱成像方法[J].石油物探,2012,51(3):213-218Li C H,Zhang F C.Variable resolution matchingpursuit spectrum imaging of seismic signals[J].Geo-physical Prospecting for Petroleum,2012,51(3):213-218
[14]Wang Y H.Seismic time-frequency spectral decom-position by matching pursuit[J].Geophysics,2007,72(1):13-20
[15]魏文,王兴谋,李红梅,等.基于地震波衰减的特征属性重构方法[J].石油物探,2012,51(3):219-225Wei W,Wang X M,Li H M,et al.Method of charac-teristics attributes reconstruction based on seismicwave attenuation[J].Geophysical Prospecting forPetroleum,2012,51(3):219-225
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