基于井断点引导小断层地震识别方法及应用 - 大庆石油地质与开发.PDF

摇 2012年6月 摇 摇 摇 摇 摇 摇 大庆石油地质与开发 June,2012 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 第31卷第3 期 Petroleum Geology and Oilfield Development in Daqing摇 摇 摇 摇 摇 摇 摇 Vol郾31No郾3 DOI: 10郾3969/ J郾ISSN郾1000鄄3754郾2012郾03郾030 基于井断点引导小断层地震识别方法及应用 李摇 操摇 王彦辉摇 姜摇 岩 (大庆油田有限责任公司勘探开发研究院, 黑龙江 大庆摇 163712) 摘要: 为了准确刻画断层的空间分布特征,满足密井网条件下老油田精细调整挖潜的需求,首次利用老油田井断 点数据库信息及地震反射特征综合解释了LMD油田BB2 区块的断层。 通过脉冲试井证实该区存在2条北东向断 层,不仅将目的层的断点组合率由原来的85%提高到95%以上,而且改变了前人对LMD油田断层的认识,其解释 结果为开发调整提供了重要依据。 该方法是刻画断层空间展布形态的有效途径,可以在大庆长垣油田推广应用。 关 键 词: 井断点引导; 断层解释; 密井网; 井震结合; 油田开发 中图分类号: P631摇 摇 摇 文献标识码: A摇 摇 摇 文章编号: 1000鄄3754 (2012) 03鄄0148鄄04 SEISMIC IDENTIFYING METHOD OF MINOR FAULTS GUIDED BY WELL BREAKPOINTS AND ITS APPLICATION LI Cao, WANG Yanhui, JIANG Yan (Exploration and Development Research Institute of Daqing Oilfield Company Ltd. , Daqing 163712, China) Abstract: In order to accurately characterize the spatial distribution of thefaultsand meet the requirementsof the fine adjustment and potential tappingfor the mature oilfieldunder the condition of densewell pattern,the database information and seismic reflectionfeaturesof thewellbreakpointsin LMDOilfieldarefirstly adoptedto comprehen鄄 sively interpret the faults in BB2 Block. Two NE faults are proven to exist in thisblock with the help of pulse tes鄄 ting,thusnot only thecombinationratioof thebreakpointsinthetargetlayerrisesfrom85% to95%,butthepre鄄 vious understanding on the oilfieldfaultshaschanged,so the interpretation resultshave provided an important evi鄄 dence for the development adjustment. The method can be the effective way to characterize the spatial distribution formsfor the faults and furthermore can be popularized all over Daqing Placanticline Oilfields. Key words: well breakpoint guide;fault interpretation;dense