影响约束地震反演品质的因素分析
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摘要
目的分析约束地震反演品质的因素,提高反演的品质。方法从地震反演原理、基础资料的品质、反演方法和地质约束模型及其外推控制等方面分析对地震反演品质的影响。结果提出了从提高地震品质、对测井资料预处理和构造精细解释及其模型的正确建立3方面改善反演品质的策略。结论针对性的保障措施可以最大程度地消除反演的多解性,提高反演的品质,对在波阻抗技术基础上发展起来的弹性阻抗反演品质的提高同样有借鉴意义。
Aim To analyse the factors affecting quality of well log constraint inversion to improve the quality of well log constraint inversion.Methods In the light of such aspects as the principle of logging constraint inversion,the quality of basic data,the selection of techniques for logging constrained seismic inversion and the choice of inversion parameters,the setting up of the stratigraphic framework model and the extrapolation control are factors affecting quality of logging constrained seismic inversion.Results The method proposed has improved the quality of logging constrained seismic inversion from the aspects of enhancing the seismic quality,preprocessing well logging information,fine stucture elucidation and establishment of its model.Conclusion With the ensuring measures,the ambiguity of inversion can be eliminated,the quality of inversion is improved,and there is a same significance to enhance the inversion quality of elastic impedance that comes form the wave impedance.
Aim To analyse the factors affecting quality of well log constraint inversion to improve the quality of well log constraint inversion.Methods In the light of such aspects as the principle of logging constraint inversion,the quality of basic data,the selection of techniques for logging constrained seismic inversion and the choice of inversion parameters,the setting up of the stratigraphic framework model and the extrapolation control are factors affecting quality of logging constrained seismic inversion.Results The method proposed has improved the quality of logging constrained seismic inversion from the aspects of enhancing the seismic quality,preprocessing well logging information,fine stucture elucidation and establishment of its model.Conclusion With the ensuring measures,the ambiguity of inversion can be eliminated,the quality of inversion is improved,and there is a same significance to enhance the inversion quality of elastic impedance that comes form the wave impedance.
引文
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[8]马劲风,王学军,钟俊,等.测井资料约束的波阻抗反演中的多解性问题[J].石油与天然气地质,1999,20(1):7-10.
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[10]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.
[11]范祯祥,郑仙种,范书蕊,等.利用地震、测井资料联合反演储层物性参数[J].石油地球物理勘探,1998,33(1):38-53.
[12]李庆忠.论地震约束反演的策略[J].石油地球物理勘探,1998,33(4):423-438.
[13]BACKUS G E,GILBERT J F.Numerical application of aformulism for geo-physical inverse[J].Geophys J R Astr,1967,13:247-276.
[14]WINGGINS R A.The generalized linear inverse problem:Implication of surface waves and free oscillations for earthstructure[J].Rev Geophys Space Phys,1972,10:251-285.
[15]CONNOLLY P.Elastic impedance[J].The LeadingEdge,1999,18(4):438-445.
[16]孟宪军,金翔龙,钮学民,等.地震反演中的三维复杂约束模型[J].石油大学学报,2004,28(6):21-26.
[2]宋维琪,赵万金,冯磊,等.地震高分辨率反演和地质模拟联合预测薄储层[J].石油学报,2005,26(1):50-54.
[3]张建宁.牛庄洼陷浊积岩砂体储层物性地震预测[J].石油地球物理勘探,2005,40(6):716-720.
[4]杨风丽,王清,沈财余.碳酸盐岩储层地震信息响应及横向预测[J].同济大学学报,2005,33(9):1 235-1 239.
[5]LATIMER R B,DAVISON R,PIEL P V.An interpreter′s guide to understanding and working with seismic derivedacoustic impedance data[J].The Leading Edge,2000,19(3):242-256.
[6]COOKE D A,SCHNEIDER W A.Genralize linear inver-sion of reflection seismic data[J].Geophysics,1983,48(6):665-676.
[7]沈财余,崔汝国.影响测井约束地震反演地质效果因素的分析[J].物探与化探,2003,27(2):123-127.
[8]马劲风,王学军,钟俊,等.测井资料约束的波阻抗反演中的多解性问题[J].石油与天然气地质,1999,20(1):7-10.
[9]彭传圣,常国贞.试论地震约束反演的不适定性[J].油气地质与采收率,2002,9(2):88-90.
[10]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.
[11]范祯祥,郑仙种,范书蕊,等.利用地震、测井资料联合反演储层物性参数[J].石油地球物理勘探,1998,33(1):38-53.
[12]李庆忠.论地震约束反演的策略[J].石油地球物理勘探,1998,33(4):423-438.
[13]BACKUS G E,GILBERT J F.Numerical application of aformulism for geo-physical inverse[J].Geophys J R Astr,1967,13:247-276.
[14]WINGGINS R A.The generalized linear inverse problem:Implication of surface waves and free oscillations for earthstructure[J].Rev Geophys Space Phys,1972,10:251-285.
[15]CONNOLLY P.Elastic impedance[J].The LeadingEdge,1999,18(4):438-445.
[16]孟宪军,金翔龙,钮学民,等.地震反演中的三维复杂约束模型[J].石油大学学报,2004,28(6):21-26.
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