复杂地质异常体地震子体相干和图像合成识别技术
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摘要
本文运用地震子体相干和图像合成技术以三维地震资料中任意尺寸的子体为基本计算单元,采用多算子方法,将子体之间地球物理学特征参数的变化表征出来,实现地震属性间的相关性和地层的倾角及方位角多信息高分辨率检测,平均效应小,对地震数据的微弱变化也比较敏感。将相干、倾角和方位角三种属性的图像合成显示提高了数据体的空间视分辨率,更清楚地表征小断层或裂缝分布特征,定量地刻画复杂地质异常体的边界。应用文中所述技术有效地预测了A区块潜山油藏的裂缝发育规律和B区块曲流河河道的宽度。
Seismic sub-volume coherence and image synthesis technology thinks 3-D seismic sub-volume data of any size as the basic computational unit.This technology characterizes the change of geophysical parameters between sub-volumes by multi-operator method.It achieves high-resolution and multi-information detection of the correlation among seismic attributes,dip and azimuth information and has the characteristic of the small ave-rage effect.Therefore it is more sensitive to weak variations of the seismic data.It increases apparent resolution of the volume by displaying synthetically coherence,dip and azimuth attributes and describes more clearly distribution of small faults or cracks and characterizes quantitatively the border of complex geological anomalous body.The thesis predicts effectively the distribution of the cracks of the buried hill reservoirs in Block A and the width of the meandering rivers in Block B by this technology.
Seismic sub-volume coherence and image synthesis technology thinks 3-D seismic sub-volume data of any size as the basic computational unit.This technology characterizes the change of geophysical parameters between sub-volumes by multi-operator method.It achieves high-resolution and multi-information detection of the correlation among seismic attributes,dip and azimuth information and has the characteristic of the small ave-rage effect.Therefore it is more sensitive to weak variations of the seismic data.It increases apparent resolution of the volume by displaying synthetically coherence,dip and azimuth attributes and describes more clearly distribution of small faults or cracks and characterizes quantitatively the border of complex geological anomalous body.The thesis predicts effectively the distribution of the cracks of the buried hill reservoirs in Block A and the width of the meandering rivers in Block B by this technology.
引文
[1]王志君,黄军斌.利用相干技术和三维可视化技术识别微小断层和砂体.石油地球物理勘探,2001,36(3):378～381Wang Zhijun and Huang Junbin.Identification of micro-fault and sand body by using coherence technique and 3-Dvisualization.OGP,2001,36(3):378～381
[2]刘传虎.地震相干分析技术在裂缝油气藏预测中的应用.石油地球物理勘探,2001,36(2):238～244Liu Chuanhu.Application of seismic coherent analysistechnology to prediction of fractured reservoir.OGP,2001,36(2):238～244
[3]冉建斌,李建雄.基于三维地震资料的油藏描述技术和方法.石油地球物理勘探,2004,39(1):102～112Ran Jian-bin and Li Jian-xiong.3-D seismic-data-based reservoir description technology and methods.OGP,2004,39(1):102～112
[4]何晓松,王红梅,高淑玲.苏丹研究区地震解释实例.石油地球物理勘探,2007,42(增刊):83～85He Xiao-song,Wang Hong-mei and Gao Shu-ling.Case of seismic interpretation in Sudan studied area.OGP,2007,42(Sup):83～85
[5]Bahorich M,Farmer S.3-D seismic discontinuity forfaults and stratigraphic features:the coherence cube.The Leading Edge,1995,14(10):1053～1058
[6]Marfurt K J,Kirlin R L,Farmer S L et a1.3-D seis-mic attributes using a semblance-based coherency al-gorithm.Geophysics,1998,63(4):1150～1165
[7]Gersztenkorn A,Marfurt K J.Eigenstrueture-basedcoherence computations as an aid to 3-D structuraland stratigraphic mapping.Geophysics,1999,64(5):1468～1479
[8]Hallmich C,Trappe H et al.Delineation of subtlefractures by seismic volume attributes-tracer for dia-genetically altered reservoir zones.62nd EAGE Con-ference&Exhibition,2000
[9]Trappe H,Hallmich C,Foell M.Potential power inthe application of seismic volume attributes.FirstBreak,2000,18(9):397～402
[10]段云卿,覃天,张联盟,高峰昌.基于体属性的地震相干技术.石油地球物理勘探,2006,41(4):442～446Duan Yun-qing,Qin Tian,Zhang Lian-meng and GaoFeng-chang.Seismic coherence technique based onvolume attributes.OGP,2006,41(4):442～446
[11]杨国权,高荣涛,雷凌等.河流相储集体的精细解释与描述.石油地球物理勘探,2005,40(3):314～317Yang Guo-quan,Gao Rong-tao,Lei Ling et al.Fineinterpretation and description of river facies reservoir.OGP,2005,40(3):314～317
[12]于建国,林春明,王金铎等.曲流河沉积亚相的地震识别方法.石油地球物理勘探,2003,38(5):547～551Yu Jianguo,Lin Chunming,Wang Jinduo et al.Seis-mic identification of meandering channel sedimentarysubfacies.OGP,2003,38(5):547～551
[2]刘传虎.地震相干分析技术在裂缝油气藏预测中的应用.石油地球物理勘探,2001,36(2):238～244Liu Chuanhu.Application of seismic coherent analysistechnology to prediction of fractured reservoir.OGP,2001,36(2):238～244
[3]冉建斌,李建雄.基于三维地震资料的油藏描述技术和方法.石油地球物理勘探,2004,39(1):102～112Ran Jian-bin and Li Jian-xiong.3-D seismic-data-based reservoir description technology and methods.OGP,2004,39(1):102～112
[4]何晓松,王红梅,高淑玲.苏丹研究区地震解释实例.石油地球物理勘探,2007,42(增刊):83～85He Xiao-song,Wang Hong-mei and Gao Shu-ling.Case of seismic interpretation in Sudan studied area.OGP,2007,42(Sup):83～85
[5]Bahorich M,Farmer S.3-D seismic discontinuity forfaults and stratigraphic features:the coherence cube.The Leading Edge,1995,14(10):1053～1058
[6]Marfurt K J,Kirlin R L,Farmer S L et a1.3-D seis-mic attributes using a semblance-based coherency al-gorithm.Geophysics,1998,63(4):1150～1165
[7]Gersztenkorn A,Marfurt K J.Eigenstrueture-basedcoherence computations as an aid to 3-D structuraland stratigraphic mapping.Geophysics,1999,64(5):1468～1479
[8]Hallmich C,Trappe H et al.Delineation of subtlefractures by seismic volume attributes-tracer for dia-genetically altered reservoir zones.62nd EAGE Con-ference&Exhibition,2000
[9]Trappe H,Hallmich C,Foell M.Potential power inthe application of seismic volume attributes.FirstBreak,2000,18(9):397～402
[10]段云卿,覃天,张联盟,高峰昌.基于体属性的地震相干技术.石油地球物理勘探,2006,41(4):442～446Duan Yun-qing,Qin Tian,Zhang Lian-meng and GaoFeng-chang.Seismic coherence technique based onvolume attributes.OGP,2006,41(4):442～446
[11]杨国权,高荣涛,雷凌等.河流相储集体的精细解释与描述.石油地球物理勘探,2005,40(3):314～317Yang Guo-quan,Gao Rong-tao,Lei Ling et al.Fineinterpretation and description of river facies reservoir.OGP,2005,40(3):314～317
[12]于建国,林春明,王金铎等.曲流河沉积亚相的地震识别方法.石油地球物理勘探,2003,38(5):547～551Yu Jianguo,Lin Chunming,Wang Jinduo et al.Seis-mic identification of meandering channel sedimentarysubfacies.OGP,2003,38(5):547～551
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