相干技术在构造形态自动识别中的应用
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摘要
相干技术的出现解决了在许多构造地区常规地震构造解释的精度不足的问题。第一代(C1)相干算法是计算每道的横测线和相邻纵测线的互相关,依据相干值来判断地层和岩性的横向不均匀性。本文利用C1相干算法进行合成地震记录计算,求出最大相干值,实现了对连续、不连续和低幅度构造的自动追踪.并对追踪结果求导得到构造的斜率图,进而识别出倾斜地层、断层和向斜等构造形态。
It had solved precision deficiency when coherence technique was appear in the conventionality prospect for earchquake explain problem.The first coherence arithmetic calculated each horizontal line and near vertical line one another relation.The according as coherence value estimated stratum and lithology horizontal asymmetry.The article made use of C1 coherence arithmetic calculate synthetic seismic records,gained the biggest coherence value,and realized self-motion pursue of concatenation,discontinuity low extent conformation.The pursue result calculated differential coefficient,gained conformation slope chart.We distinguished from conformation configuration of the tilt fault,syncline and so on.
It had solved precision deficiency when coherence technique was appear in the conventionality prospect for earchquake explain problem.The first coherence arithmetic calculated each horizontal line and near vertical line one another relation.The according as coherence value estimated stratum and lithology horizontal asymmetry.The article made use of C1 coherence arithmetic calculate synthetic seismic records,gained the biggest coherence value,and realized self-motion pursue of concatenation,discontinuity low extent conformation.The pursue result calculated differential coefficient,gained conformation slope chart.We distinguished from conformation configuration of the tilt fault,syncline and so on.
引文
[1]王大伟,刘震,陈小宏,姬小兵.地震相干技术的进展及其在油气勘探中的应用[J].地质科技情报.2005,24(2).
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[6]闫德庆,庞留彦,仲其涛,李晋平,宋端智.C1相干算法及其在三维地震勘探解释中的应用[J].物探化探计算技术,2001,23,3.
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[8]叶增炉,何建军.地震相干体算法的改进及应用[J].物探化探计算技术.2006,28(2).
[9]陈凤云,杭远,康建林.相干和方差数据体的算法研究及应用[J].物探与化探.2006,30(3).
[10]孙夕平,杜世通.相干体技术算法研究及其在地震资料解释中的应用[J].石油大学学报(自然科学版).2003,27(2).
[2]侯伯刚,乌达巴拉,杨再岩.地震相干技术简介及其应用[J].现代地质.1999,13(1).
[3]Bahorich M.Farmer S1 3-D seismic discontinuity forfaults and stratigraphic features:the coherence cube[J].The L eading Ed ge,1995,14(10):1053-1058.
[4]Marfurt KJ,Kirlin R L,Farmer S L,et al.3-D SeismicAtt rib2utes using a semblance,based coherency algorithm[J].Geophysics,1998,63(4):1150-1165.
[5]Gersztenkorn A,Marfurt K J.Eigenst ructure-based co-herence computations as an aid to 3-D structural and stra-tigraphic mapping[J].Geophysics,1999,64(5):1468-1479.
[6]闫德庆,庞留彦,仲其涛,李晋平,宋端智.C1相干算法及其在三维地震勘探解释中的应用[J].物探化探计算技术,2001,23,3.
[7]丛茂祥,李洪亮.C1相干算法及其在三维地震资料处理解释中的应用[J].中国煤田地质.2005,17(2).
[8]叶增炉,何建军.地震相干体算法的改进及应用[J].物探化探计算技术.2006,28(2).
[9]陈凤云,杭远,康建林.相干和方差数据体的算法研究及应用[J].物探与化探.2006,30(3).
[10]孙夕平,杜世通.相干体技术算法研究及其在地震资料解释中的应用[J].石油大学学报(自然科学版).2003,27(2).
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