炮检距属性的非均匀性系数分析
|
摘要
三维地震观测系统中炮检距均匀分布一直是野外地震采集设计的目标,炮检距分布对速度分析和叠加成像精度都有很大影响。目前人们对三维地震观测系统属性进行定性分析和评价的主要手段是炮检距分布属性图。本文将炮检距分布与覆盖次数和最大炮检距联系起来,提出了定量化分析公式和非均匀性系数的新概念,用以描述每一个面元炮检距分布的均匀性状况。通过对四种不同类型束状观测系统和四种不同横纵比正交观测系统的炮检距非均匀性系数分析,定量地推断出炮检距相对最为均匀的观测系统,为地震勘探观测系统设计中炮检距均匀分布评价提供了新的方法和手段。
Offset uniform distribution is always the goal in geometry designing for seismic acquisition as the offset distribution has severe influence to velocity analysis and stacking imaging precision.Nowadays our main tool to evaluate a geometry designing and to conduct qualitative analysis for the performance of the geometry is the offset distribution attribute map.In this paper by linking the offset distribution and folds/maximum offset,the quantitative analysis formula and the nonuniformity coefficient new concept were introduced,and they are used to describe the offset uniformity status for each bin.By conducting analysis of offset nonuniformity coefficient for 4 kinds of track group recording geometry and orthogonal geometry with different aspect ratios,the most evenly distributed geometry was quantitatively derived,providing the new method and means for geometry designing in seismic acquisition.
Offset uniform distribution is always the goal in geometry designing for seismic acquisition as the offset distribution has severe influence to velocity analysis and stacking imaging precision.Nowadays our main tool to evaluate a geometry designing and to conduct qualitative analysis for the performance of the geometry is the offset distribution attribute map.In this paper by linking the offset distribution and folds/maximum offset,the quantitative analysis formula and the nonuniformity coefficient new concept were introduced,and they are used to describe the offset uniformity status for each bin.By conducting analysis of offset nonuniformity coefficient for 4 kinds of track group recording geometry and orthogonal geometry with different aspect ratios,the most evenly distributed geometry was quantitatively derived,providing the new method and means for geometry designing in seismic acquisition.
引文
[1]赵殿栋,吕公河,张庆淮等.高精度三维地震采集技术及应用效果.石油物探,2001,40(1):1~8Zhao Dian-dong,Lu Gong-he,Zhang Qing-huai et al.Highprecision 3D seismic acquisition technology andapplication effect.Geophysical Prospecting for Petro-leum,2001,40(1):1~8
[2]阎世信,谢文导.三维地震观测方式应用的几点意见.石油地球物理勘探,1998,33(6):787~795Yan Shi-xin and Xie Wen-dao.Some suggestions onthe application of 3D seismic observation ways.OGP,1998,33(6):787~795
[3]Slawson S,Monk D and Moran J.Survey geometriesthat achieve more uniform offset and azimuth sam-pling.SEG Technical Program Expanded Abstracts,1997,16:39~42
[4]尹成,吕公河,田继东等.三维观测系统属性分析与优化设计.石油地球物理勘探,2005,40(5):495~498Yin Cheng,Lu Gong-he,Tian Ji-dong et al.3D obser-vation system attribute analysis and optimal design.OGP,2005,40(5):495~498
[5]李庆忠.对宽方位角三维采集不要盲从——到底什么叫“全三维采集”.石油地球物理勘探,2001,36(1):122~125Li Qing-zhong.Don't blindly obedient wide azimuth 3Dacquisition.OGP,2001,36(1):122~125
[6]Gijs J O Vermeer著;李培明,何永清等译.三维地震勘探设计.北京:石油工业出版社,2008
[7]冯凯,何冠慧,尹成等.宽方位三维观测系统的发展现状与趋势.西南石油学院学报,2006,28(6):24~28Feng Kai,He Guan-hui,Yin Cheng et al.Status andtrends of wide azimuth 3D observation system.Jour-nal of SWPU,2006,28(6):24~28
[8]唐云,李显贵,邱华等.宽方位地震资料采集观测系统设计初探.石油物探,2003,42(2):233~236Tang Yun,Li Xian-gui,Qiu Hua et al.Study of wide-azimuth layout design for seismic acquisition.Geo-physical Prospecting for Petroleum,2003,42(2):233~236
[2]阎世信,谢文导.三维地震观测方式应用的几点意见.石油地球物理勘探,1998,33(6):787~795Yan Shi-xin and Xie Wen-dao.Some suggestions onthe application of 3D seismic observation ways.OGP,1998,33(6):787~795
[3]Slawson S,Monk D and Moran J.Survey geometriesthat achieve more uniform offset and azimuth sam-pling.SEG Technical Program Expanded Abstracts,1997,16:39~42
[4]尹成,吕公河,田继东等.三维观测系统属性分析与优化设计.石油地球物理勘探,2005,40(5):495~498Yin Cheng,Lu Gong-he,Tian Ji-dong et al.3D obser-vation system attribute analysis and optimal design.OGP,2005,40(5):495~498
[5]李庆忠.对宽方位角三维采集不要盲从——到底什么叫“全三维采集”.石油地球物理勘探,2001,36(1):122~125Li Qing-zhong.Don't blindly obedient wide azimuth 3Dacquisition.OGP,2001,36(1):122~125
[6]Gijs J O Vermeer著;李培明,何永清等译.三维地震勘探设计.北京:石油工业出版社,2008
[7]冯凯,何冠慧,尹成等.宽方位三维观测系统的发展现状与趋势.西南石油学院学报,2006,28(6):24~28Feng Kai,He Guan-hui,Yin Cheng et al.Status andtrends of wide azimuth 3D observation system.Jour-nal of SWPU,2006,28(6):24~28
[8]唐云,李显贵,邱华等.宽方位地震资料采集观测系统设计初探.石油物探,2003,42(2):233~236Tang Yun,Li Xian-gui,Qiu Hua et al.Study of wide-azimuth layout design for seismic acquisition.Geo-physical Prospecting for Petroleum,2003,42(2):233~236
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