南方山前带B区地震速度建模及偏移成像
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摘要
本文针对南方山前带B区某三维地震数据,采用自主研发的iCuster地震成像系统,将偏移速度分析、沿层统计速度分析和剩余速度分析相结合,通过递进式的建模技术流程提高了速度模型的精度,改善了叠前时间偏移成像质量。
According to the characteristics of 3D seismic data in the Area B of a foothill belt in the Southern China,in the paper we use progressive velocity model building technique,combining migration velocity analysis with horizon-based statistics velocity analysis and residual velocity analysis from self-developed iCluster,a seismic imaging system,to improve the accuracy of the velocity model. This approach finally leads to an improvement of the prestack time migration image.
According to the characteristics of 3D seismic data in the Area B of a foothill belt in the Southern China,in the paper we use progressive velocity model building technique,combining migration velocity analysis with horizon-based statistics velocity analysis and residual velocity analysis from self-developed iCluster,a seismic imaging system,to improve the accuracy of the velocity model. This approach finally leads to an improvement of the prestack time migration image.
引文
[1]熊翥.我国西部山前冲断带油气勘探地震技术的几点思考.勘探地球物理进展,2005,28(1):1～4Xiong Zhu.Seismic exploration techniques suitable forpiedmont thrust belts in western China.PEG,2005,28(1):1～4
[2]赵殿栋.地球物理在油气勘探开发中的作用.北京:石油工业出版社,2009
[3]马永生等.四川盆地大中型天然气田分布特征与勘探方向.石油学报,2010,31(3):347～354Ma Yongsheng et al.Distribution and further explorationof the large-medium sized gas fields in Sichuan Basin.Acta Petrolei Sinica,2010,31(3):347～354
[4]刘怀山等.山地地球物理勘探难点和对策.西北地质,2004,37(4):65～70Liu Huaishan et al.The questions and strategies ofgeophysical exploration in mountainous areas.NorthwesternGeology,2004,37(4):65～70
[5]苟量等.西部复杂山地勘探走势分析.石油地球物理勘探,2005,40(2):248～251Gou Liang et al.Analysis of trend to complex moun-tainous exploration in west of China.OGP,2005,40(2):248～251
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[7]程玖兵等.山前带地震数据的波动方程叠前深度偏移方法.天然气工业,2007,27(2):38～39Cheng Jiubing et al.Wave equation prestack depthmigration of foothills seismic data.Nature Gas In-dustry,2007,27(2):38～39
[8]敬朋贵等.米仓—大巴山复杂山前带油气勘探进展与面临的问题研究.石油物探,2011,50(2):107～114Jing Penggui et al.Exploration progress and con-fronted problems of complex mountain front in Mi-cang-Dabashan area.GPP,2011,50(2):107～114
[9]程玖兵等.山前带复杂构造成像方法研究.石油地球物理勘探,2006,41(5):525～529Cheng Jiubing et al.Imaging study of piedmont com-plex structures.OGP,2006,41(5):525～529
[10]Evgeny Landa et al.How far is the seismic imagecorrect.The Leading Edge,1998,17(7):919～922
[11]Donald A.Pitfalls in seismic interpretation:depth mi-gration artifacts.The Leading Edge,2000,19(9):1016～1017
[12]Grubb H et al.Estimating and interpreting velocityuncertainty in migrated images and AVO attributes.Geophysics,2001,66(4):1208～1216
[13]潘宏勋等.速度模型误差给叠前深度偏移成像带来的假象.物探化探计算技术,2010,32(1):64～67Pan Hongxun et al.Effect of inexact velocity modelon prestack depth migration imaging.ComputingTechniques for Geophysical and Geochemical Explo-ration,2010,32(1):64～67
[14]冯泽元等.利用层析反演技术解决山地复杂区静校正问题.石油物探,2005,44(3):284～287Feng Zeyuan et al.Solving the static correction prob-lem in mountain complex block using tomographic in-version.GPP,2005,44(3):284～287
[15]张兵等.时间域剩余曲率偏移速度分析技术在iCluster软件中的实现.勘探地球物理进展,2010,33(3):168～173Zhang Bing et al.Realization of time-domain residualcurvature migration velocity analysis in iCluster soft-ware platform.PEG,2010,33(3):168～173
[16]Al Yahya K.Velocity analysis by iterative profile mi-gration.Geophysics,1989,54(6):718～729
[2]赵殿栋.地球物理在油气勘探开发中的作用.北京:石油工业出版社,2009
[3]马永生等.四川盆地大中型天然气田分布特征与勘探方向.石油学报,2010,31(3):347～354Ma Yongsheng et al.Distribution and further explorationof the large-medium sized gas fields in Sichuan Basin.Acta Petrolei Sinica,2010,31(3):347～354
[4]刘怀山等.山地地球物理勘探难点和对策.西北地质,2004,37(4):65～70Liu Huaishan et al.The questions and strategies ofgeophysical exploration in mountainous areas.NorthwesternGeology,2004,37(4):65～70
[5]苟量等.西部复杂山地勘探走势分析.石油地球物理勘探,2005,40(2):248～251Gou Liang et al.Analysis of trend to complex moun-tainous exploration in west of China.OGP,2005,40(2):248～251
[6]云美厚等.南方山前带地震勘探问题与认识.天然气工业,2007,27(增刊A):300～302
[7]程玖兵等.山前带地震数据的波动方程叠前深度偏移方法.天然气工业,2007,27(2):38～39Cheng Jiubing et al.Wave equation prestack depthmigration of foothills seismic data.Nature Gas In-dustry,2007,27(2):38～39
[8]敬朋贵等.米仓—大巴山复杂山前带油气勘探进展与面临的问题研究.石油物探,2011,50(2):107～114Jing Penggui et al.Exploration progress and con-fronted problems of complex mountain front in Mi-cang-Dabashan area.GPP,2011,50(2):107～114
[9]程玖兵等.山前带复杂构造成像方法研究.石油地球物理勘探,2006,41(5):525～529Cheng Jiubing et al.Imaging study of piedmont com-plex structures.OGP,2006,41(5):525～529
[10]Evgeny Landa et al.How far is the seismic imagecorrect.The Leading Edge,1998,17(7):919～922
[11]Donald A.Pitfalls in seismic interpretation:depth mi-gration artifacts.The Leading Edge,2000,19(9):1016～1017
[12]Grubb H et al.Estimating and interpreting velocityuncertainty in migrated images and AVO attributes.Geophysics,2001,66(4):1208～1216
[13]潘宏勋等.速度模型误差给叠前深度偏移成像带来的假象.物探化探计算技术,2010,32(1):64～67Pan Hongxun et al.Effect of inexact velocity modelon prestack depth migration imaging.ComputingTechniques for Geophysical and Geochemical Explo-ration,2010,32(1):64～67
[14]冯泽元等.利用层析反演技术解决山地复杂区静校正问题.石油物探,2005,44(3):284～287Feng Zeyuan et al.Solving the static correction prob-lem in mountain complex block using tomographic in-version.GPP,2005,44(3):284～287
[15]张兵等.时间域剩余曲率偏移速度分析技术在iCluster软件中的实现.勘探地球物理进展,2010,33(3):168～173Zhang Bing et al.Realization of time-domain residualcurvature migration velocity analysis in iCluster soft-ware platform.PEG,2010,33(3):168～173
[16]Al Yahya K.Velocity analysis by iterative profile mi-gration.Geophysics,1989,54(6):718～729
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