密井网条件下井震联合低级序断层识别方法
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摘要
低级序断层是影响剩余油聚集和注采关系的主要地质控制因素之一,油田开发后期对准确描述低级序断层的位置和走向提出了更高的精度要求。本文基于叠后地震资料,通过地震数据高频响应增强处理及蚂蚁体地震属性的提取,采取井点钻、测井、井间地震资料的联合解释方式,对工区断距2m以上的低级序断层进行了识别和描述,并得到开发动态数据的验证。由此认识到:充分利用并挖掘井-震联合勘探的潜力,能有效提高开发阶段小尺度地质体的描述精度,并为油藏描述提供更准确的地质模型。
As low-grade faults have great influence on remaining oil distribution and injection-production relation,an accurate distribution of these minor faults is one of considerable interests in mature field development.After poststack seismic data are processed by high frequency enhancement and seismic attribute are obtained from ant tracking,we use a joint well-seismic interpretation to characterize low-grade faults with above 2-meter fault throw in the working area.This low-grade fault interpretation has been proven by well production information.Our study demonstrates that this joint well-seismic interpretation has great potential to improve the minor geologic body delineation for the mature field development stage.
As low-grade faults have great influence on remaining oil distribution and injection-production relation,an accurate distribution of these minor faults is one of considerable interests in mature field development.After poststack seismic data are processed by high frequency enhancement and seismic attribute are obtained from ant tracking,we use a joint well-seismic interpretation to characterize low-grade faults with above 2-meter fault throw in the working area.This low-grade fault interpretation has been proven by well production information.Our study demonstrates that this joint well-seismic interpretation has great potential to improve the minor geologic body delineation for the mature field development stage.
引文
[1]李阳,刘建民.油藏开发地质学.北京:石油工业出版社,2007
[2]韩大匡.准确预测剩余油相对富集区提高油田注水采收率研究.石油学报,2007,28(2):73～78Han Dakuang.Precisely predicting abundant remai-ning oil and improving the secondary recovery of ma-ture oilfields.Acta Petrolei Sinica,2007,28(2):73～78
[3]韩大匡.关于高含水油田二次开发理念、对策和技术路线的探讨.石油勘探与开发,2010,37(5):583～591Han Dakuang.Discussions on concepts,countermeas-ures and technical routes for the redevelopment ofhigh water-cut oilfields.Petroleum Exploration andDevelopment,2010,37(5):583～591
[4]徐亮.低序级断层的地震识别技术在惠民凹陷辛34断块中的应用.矿物岩石,2007,27(2):86～93Xu Liang.Application of seismic discrimination tech-nique to the low order fault in the 34fault block ofthe Huiming sag.Journal of Mineralogy and Pe-trology,2007,27(2):86～93
[5]邓维森,林承焰.葡萄花和敖包塔油田葡I组油层低级序断层的地震识别.石油物探,2010,49(1):79～84Deng Weisen and Lin Chengyan.Seismic identifica-tion of low-level faults in PuI reservoir of Putaohuaand Aobaota Oilfields.GPP,2010,49(1):79～84
[6]Dorigo M,Maniezzo V,Colorni A.Positive feed-back as a search strategy.Milan:Milan Politecnico diMilano,1991
[7]高静怀,陈文超,李幼铭等.广义S变换与薄互层地震响应分析.地球物理学报,2003,46(4):526～532Gao Jinghuai,Chen Wenchao,Li Youming et al.Gen-eralized S transfrom and seismic response analysis ofthin interbeds.Chinese Journal of Geophysics,2003,46(4):526～532
[8]马丽娟,金之钧.复杂断块构造的精细解释.石油地球物理勘探,2005,40(6):688～692Ma Lijuan and Jin Zhijun.Fine interpretation of com-plex fault-block structure.OGP,2005,40(6):688～692
[9]陆文凯,丁文龙,张善文等.基于信号子空间分解的三维地震资料高分辨率处理方法.地球物理学报,2005,48(4):896～901Lu Wenkai,Ding Wenlong,Zhang Shanwen et al.Ahigh-resolution processing technique for 3-D seismicdata based on signal sub-space decomposition.Chi-nese Journal of Geophysics,2005,48(4):896～901
[10]陆文凯,张善文,肖焕钦.用于断层检测的图像去模糊技术.石油地球物理勘探,2004,39(6):686～689,696Lu Wenkai,Zhang Shanwen and Xiao Huanqin.Smear-eliminated technique of image used for fault de-tection.OGP,2004,39(6):686～689,696
[2]韩大匡.准确预测剩余油相对富集区提高油田注水采收率研究.石油学报,2007,28(2):73～78Han Dakuang.Precisely predicting abundant remai-ning oil and improving the secondary recovery of ma-ture oilfields.Acta Petrolei Sinica,2007,28(2):73～78
[3]韩大匡.关于高含水油田二次开发理念、对策和技术路线的探讨.石油勘探与开发,2010,37(5):583～591Han Dakuang.Discussions on concepts,countermeas-ures and technical routes for the redevelopment ofhigh water-cut oilfields.Petroleum Exploration andDevelopment,2010,37(5):583～591
[4]徐亮.低序级断层的地震识别技术在惠民凹陷辛34断块中的应用.矿物岩石,2007,27(2):86～93Xu Liang.Application of seismic discrimination tech-nique to the low order fault in the 34fault block ofthe Huiming sag.Journal of Mineralogy and Pe-trology,2007,27(2):86～93
[5]邓维森,林承焰.葡萄花和敖包塔油田葡I组油层低级序断层的地震识别.石油物探,2010,49(1):79～84Deng Weisen and Lin Chengyan.Seismic identifica-tion of low-level faults in PuI reservoir of Putaohuaand Aobaota Oilfields.GPP,2010,49(1):79～84
[6]Dorigo M,Maniezzo V,Colorni A.Positive feed-back as a search strategy.Milan:Milan Politecnico diMilano,1991
[7]高静怀,陈文超,李幼铭等.广义S变换与薄互层地震响应分析.地球物理学报,2003,46(4):526～532Gao Jinghuai,Chen Wenchao,Li Youming et al.Gen-eralized S transfrom and seismic response analysis ofthin interbeds.Chinese Journal of Geophysics,2003,46(4):526～532
[8]马丽娟,金之钧.复杂断块构造的精细解释.石油地球物理勘探,2005,40(6):688～692Ma Lijuan and Jin Zhijun.Fine interpretation of com-plex fault-block structure.OGP,2005,40(6):688～692
[9]陆文凯,丁文龙,张善文等.基于信号子空间分解的三维地震资料高分辨率处理方法.地球物理学报,2005,48(4):896～901Lu Wenkai,Ding Wenlong,Zhang Shanwen et al.Ahigh-resolution processing technique for 3-D seismicdata based on signal sub-space decomposition.Chi-nese Journal of Geophysics,2005,48(4):896～901
[10]陆文凯,张善文,肖焕钦.用于断层检测的图像去模糊技术.石油地球物理勘探,2004,39(6):686～689,696Lu Wenkai,Zhang Shanwen and Xiao Huanqin.Smear-eliminated technique of image used for fault de-tection.OGP,2004,39(6):686～689,696
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