提高盘2-26断块断层解释精度研究

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英文篇名：Research on improving the accuracy of fault interpretation of P2-26 block 作者：谭琴辉 英文作者：Tan Qinhui;Research Institute of Exploration and Development,Shengli Oilfield Company,SINOPEC; 关键词：断层解释精度 ; 断层加强 ; 加强蚂蚁体 ; 井震结合 英文关键词：the accuracy of fault interpretation;;strengthening fault margin processing;;enhanced ant-tracking;;wel-seismic combination 中文刊名：石化技术 英文刊名：Petrochemical Industry Technology 机构：胜利油田勘探开发研究院; 出版日期：2019-08-28 出版单位：石化技术 年：2019 期：08 基金：国家科技重大专项“胜利油田特高含水期提高采收率技术”(2016ZX05011) 语种：中文; 页：127-128 页数：2 CN：11-3477/TE ISSN：1006-0235 分类号：P618.13

摘要

断层对复杂断块油气藏的剩余油分布规律研究与挖潜影响重大。由于断裂系统复杂、地震资料分辨率低,断层解释的精度与准确性难以把握,直接影响着后期开发方案的制定。文中首先利用精细地层对比确定低序级断层井上断点位置,其次采用断层加强技术提高地震资料断层分辨率,并提取加强蚂蚁体识别低序级断层,在此基础上再进行井震结合三维精细构造解释,精细刻画断层。通过多种方法综合应用,盘2-26断块的大断层的平面位置误差减小了50米,地震识别断层最小落差达到9米,提高了断层的解释精度,且在新解释范围内完钻的3口井取得了显著的开发效果。
        Fault affects the remaining oil of complex fault block.Because of the complex fault system and low resolution of seismic data,the accuracy of fault interpretation is difficult to determine,which affects the late development plan,In this paper,firstly,the location of minor faults in the logging curve is determined by the fine stratigraphic correlation;Secondly,the strengthening fault margin processing technique is used to enhance the visualization of the faults in seismic data,and using enhanced ant-tracking to track small fault,Then we took 3 D fine structure interpretation by well-seismic combination.Through the application of a variety of technical methods,Offset error of position of the large fault is reduced by 50 meters,Minimum detection capability of the seismic identification fault reached to 9 meters,and the interpretation accuracy of the fault is improved and development effect is improved for 3 wells.

引文

[1]谭琴辉，崔华.复杂断块构造解释影响因素及技术对策研究[A].内蒙古石油化工，2017,08:67-68.
    [2]武小杰.胜利油田A3复杂断块构造精细描述.油气地球物理.2014,712(3):34-38.