断层自动拾取技术在大布苏地区地震资料解释中的应用
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摘要
传统三维地震资料断层解释是从三维地震资料中抽取数条二维测线进行单线解释,同时参考时间切片,利用测线与切片相互闭合这一关系,进行人工断层解释。断层自动拾取技术立足于三维相干数据体,根据相干数据体中断层倾角和方位角的变化,采用线性处理和断层矢量加强处理方法消除噪声,突出断层特征。通过水平和垂直断层矢量的自动组合,在三维可视化环境下实现断层自动拾取。应用断层自动拾取技术对松辽盆地南部大布苏地区的三维地震数据进行了断层解释,确定了断层的展布形态和断层之间的接触关系。
Traditional 3-D seismic data interpretation is a 2D interpretation based on 3D seismic data.Faults are picked from seismic sections along inline or crossline,in the mean time take time-slices as reference.Coherence data is just used to verify fault interpretation result.Automatic Fault Extraction is a process designed to automatically interpret fault surfaces from 3-D seismic discontinuity volumes according to its dip & azimuth changes in coherence data. Several processing steps are applied to the discontinuity volume to improve the imaging of fault surfaces,followed by processes to automatically track the fault lineaments on vertical and horizontal slices through the volume.Fault Extraction technique is applied to fault interpretation at Dabusu complex structure zone in southern SongLiao basin.Tiny faults are identified exactly,faults shape and faults contact is also ascertained clearly,fracture system is analysed rightly under 3D Visualization environment.That availably directs petroleumn exploration and deployment in Dabusu zone.
Traditional 3-D seismic data interpretation is a 2D interpretation based on 3D seismic data.Faults are picked from seismic sections along inline or crossline,in the mean time take time-slices as reference.Coherence data is just used to verify fault interpretation result.Automatic Fault Extraction is a process designed to automatically interpret fault surfaces from 3-D seismic discontinuity volumes according to its dip & azimuth changes in coherence data. Several processing steps are applied to the discontinuity volume to improve the imaging of fault surfaces,followed by processes to automatically track the fault lineaments on vertical and horizontal slices through the volume.Fault Extraction technique is applied to fault interpretation at Dabusu complex structure zone in southern SongLiao basin.Tiny faults are identified exactly,faults shape and faults contact is also ascertained clearly,fracture system is analysed rightly under 3D Visualization environment.That availably directs petroleumn exploration and deployment in Dabusu zone.
引文
1张进铎.地震解释技术现状及发展趋势[J].地球物理学进展,2006,21(2):578-582
2杨春峰,张宏,田小敏,等.相干数据体处理技巧及在精细构造解释中的应用[J].石油物探,2004,43(增刊): 107-109
3王志君,黄军斌.利用相干技术和三维可视化技术拾取微小断层和砂体[J].石油地球物理勘探,2001,36 (3):378-381
4杨梦岩,常德双,孙忠.可视化技术与全三维地震解释方法[J].石油物探,2002,41(增刊):197-199
5佘德平.应用三维相干技术进行精细地震解释[J].石油物探,2004,39(2):83-86
6杨彬,林承焰.三维地震构造精细解释技术的应用[J].西部探矿工程,2005,115(11):120-122
7朱成宏,黄国骞,秦瞳.断裂系统精细分析技术[J].石油物探,2002,41(1):42-48
8 Hocker C,Fehmers G.Fast structural interpretation with structure-oriented filtering[J].The Leading Edge,2002,21(3):238-243
9侯伯刚,乌达巴拉,杨再岩.地震相干体技术简介及其应用[J].现代地质,1999,13(1):121-124
10闫德庆,庞留彦,仲其涛,等.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):206-209
11 Bahorich M,Farmar S.3-D seismic discontinuity for faults and stratigraphic features:the coherence cubs [J].The Leading Edge,1995,14(10):1 053-1 058
12张军华,王永刚,赵勇,等.相干体技术算法改进及其在TJH地区的应用[J].物探与化探,2002,26(1):50-52
13 Marfurt K J,Kirlin R L.3-D seismic attribute using a semblance-based coherency algorithm[J].Geophysics, 1998,63(4):1 150-1 165
14 Adam G,Marfurt K J.Eigen-structure based coherence computations as an aid to 3-D structural and stratigraphic mapping[J].Geophysics,1999,64(5 ):1 468- 1 479
2杨春峰,张宏,田小敏,等.相干数据体处理技巧及在精细构造解释中的应用[J].石油物探,2004,43(增刊): 107-109
3王志君,黄军斌.利用相干技术和三维可视化技术拾取微小断层和砂体[J].石油地球物理勘探,2001,36 (3):378-381
4杨梦岩,常德双,孙忠.可视化技术与全三维地震解释方法[J].石油物探,2002,41(增刊):197-199
5佘德平.应用三维相干技术进行精细地震解释[J].石油物探,2004,39(2):83-86
6杨彬,林承焰.三维地震构造精细解释技术的应用[J].西部探矿工程,2005,115(11):120-122
7朱成宏,黄国骞,秦瞳.断裂系统精细分析技术[J].石油物探,2002,41(1):42-48
8 Hocker C,Fehmers G.Fast structural interpretation with structure-oriented filtering[J].The Leading Edge,2002,21(3):238-243
9侯伯刚,乌达巴拉,杨再岩.地震相干体技术简介及其应用[J].现代地质,1999,13(1):121-124
10闫德庆,庞留彦,仲其涛,等.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):206-209
11 Bahorich M,Farmar S.3-D seismic discontinuity for faults and stratigraphic features:the coherence cubs [J].The Leading Edge,1995,14(10):1 053-1 058
12张军华,王永刚,赵勇,等.相干体技术算法改进及其在TJH地区的应用[J].物探与化探,2002,26(1):50-52
13 Marfurt K J,Kirlin R L.3-D seismic attribute using a semblance-based coherency algorithm[J].Geophysics, 1998,63(4):1 150-1 165
14 Adam G,Marfurt K J.Eigen-structure based coherence computations as an aid to 3-D structural and stratigraphic mapping[J].Geophysics,1999,64(5 ):1 468- 1 479
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