基于波阻抗反演地震数据体的相干属性及应用
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摘要
基于波阻抗反演的本征值相干属性的应用,实现对裂缝、断层和褶皱等地质构造的有效识别。介绍了相干属性的基本理论,分析了未经过波阻抗的地震数据体的相干属性在处理实际资料中的不足,提出了一种基于波阻抗反演的地震数据体来表现本征值相干属性的方法:对原始数据体进行波阻抗反演的处理,将处理后的地震数据体进行第3代相干属性的求取,然后对经过2种方法得出的地震属性的成图效果进行比较,分析异同,得出结论表明基于波阻抗反演的相干属性在高分辨率构造精细识别和裂缝的判别、构造体的几何特征描述上有着良好的应用效果。
The application of coherent attribute of eigenvalues which is based on wave impedance inversion,enables effective identification of cracks,faults and folds and other tectonics.This article describes the basic theory of coherent attributes,analyzes the inadequacies of coherent properties of the seismic data volume with no wave impedance in dealing with actual data,proposes a method of using seismic data volume based on wave Impedance inversion to express the coherent properties of eigenvalues,the method :deal the original data volume with wave impedance inversion,calculate the processed seismic data volume with the third generation coherent properties,then compare the mapping results of seismic attributes which are through two methods,and analyze the similarities and differences,conclude that the coherence properties based on wave impedance inversion has a good application result in High-resolution fine structure identification,crack discriminant and the geometric characterization of structural body.
The application of coherent attribute of eigenvalues which is based on wave impedance inversion,enables effective identification of cracks,faults and folds and other tectonics.This article describes the basic theory of coherent attributes,analyzes the inadequacies of coherent properties of the seismic data volume with no wave impedance in dealing with actual data,proposes a method of using seismic data volume based on wave Impedance inversion to express the coherent properties of eigenvalues,the method :deal the original data volume with wave impedance inversion,calculate the processed seismic data volume with the third generation coherent properties,then compare the mapping results of seismic attributes which are through two methods,and analyze the similarities and differences,conclude that the coherence properties based on wave impedance inversion has a good application result in High-resolution fine structure identification,crack discriminant and the geometric characterization of structural body.
引文
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[7]黄绪德.反褶积与地震道反演[M].北京:石油工业出版社,1992.
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[2]Gerztenkorn A,MarfurtK J.Eigenstructure-based Coherence Computations as an Aid to 3D Structural and Stratigraphic Map-ping[J].Geophysics,1999,64(5):1468-1479.
[3]Marfurt K J,Kirlin R,Farmer S L,et al.3D Seismic Attributes Using a Semblance-based Coherency Algorithm[J].Geo-physics,1998,63(4):1150-1165.
[4]佘德平,曹辉,郭全仕.应用三维相干技术进行精细解释[J].石油物探,2000,39(2):83-88.
[5]杨立强.测井约束地震反演综述[J].地球物理学进展,2003,18(3):530-534.
[6]贺振华,黄德济.地震和测井资料联合反演储层物性参数的方法[J].物探化探计算技术,1997,19(1):12-17.
[7]黄绪德.反褶积与地震道反演[M].北京:石油工业出版社,1992.
[8]李正文,杨谦.地震宽带波阻抗剖面及应用[J].矿物岩石,1997,17(4):94-98.
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