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    流动单元划分新方案及其在临南油田的应用

    胡文瑄 朱东亚 陈庆春 王秀鹏 曹学伟

    胡文瑄, 朱东亚, 陈庆春, 王秀鹏, 曹学伟, 2006. 流动单元划分新方案及其在临南油田的应用. 地球科学, 31(2): 191-200.
    引用本文: 胡文瑄, 朱东亚, 陈庆春, 王秀鹏, 曹学伟, 2006. 流动单元划分新方案及其在临南油田的应用. 地球科学, 31(2): 191-200.
    HU Wen-xuan, ZHU Dong-ya, CHEN Qing-chun, WANG Xiu-peng, CAO Xue-wei, 2006. A New Method for Flow Unit Division and Its Application in Linnan Oilfield. Earth Science, 31(2): 191-200.
    Citation: HU Wen-xuan, ZHU Dong-ya, CHEN Qing-chun, WANG Xiu-peng, CAO Xue-wei, 2006. A New Method for Flow Unit Division and Its Application in Linnan Oilfield. Earth Science, 31(2): 191-200.

    流动单元划分新方案及其在临南油田的应用

    基金项目: 

    国家科技部基础研究开发规划项目 2004CB720503

    详细信息
      作者简介:

      胡文瑄(1959—), 男, 教授, 矿床学专业, 现主要从事油气成藏与流体地球化学研究.E-mail:huwx@nju.edu.cn

    • 中图分类号: P618.13

    A New Method for Flow Unit Division and Its Application in Linnan Oilfield

    • 摘要: 把沉积学与储层物性相结合, 从流动单元体系的角度出发, 提出了流动单元划分的新方案.在流动单元体系内部划分出流动单元、亚流动单元和渗流区3个不同层次.在储层精细小层对比的基础上, 首先根据区域内连续分布的隔层把储层分成几个独立的流体压力系统, 即流动单元; 然后再根据不连续分布的隔层, 把一个流动单元进一步分成若干个亚流动单元; 最后根据储层物性的差别把流动单元/亚流动单元划分成不同的渗流区.按照这个思路, 选取临南油田的典型高产区块———以三角洲前缘亚相沉积为主的夏52块砂三中段三砂组, 进行了流动单元、亚流动单元和渗流区的划分, 共划分出7个流动单元、7个亚流动单元和63个渗流区, 这样划分出来的流动单元体系同时包括了油藏整体与局部细节的特征, 为油藏开发提供了详细的地质依据, 也在实际应用中取得了良好的效果.

       

    • 图  1  夏52块沙三中段三砂组韵律层的划分与对比

      11代表 1小层1砂体, 其他相同

      图  2  2小层1砂体和2砂体亚流动单元沉积微相分布图及两者之间隔层等厚线和连通区域分布

      a. 2小层1砂体亚流动单元沉积微相分布; b. 2小层1砂体亚流动单元和2砂体亚流动单元之间的隔层等厚线和连通区域分布; c. 2小层2砂体亚流动单元沉积微相分布

      Fig.  2.  Microfacies of 21 and 22 sub-fluid units, and isopaches of the insulating layer and the distribution of connective area between them

      图  3  沙三中段三砂组沉积微相和渗流区分布

      a. 1小层2砂体, 属三角洲平原-三角洲前缘亚相沉积, 沉积微相类型以分支河道沉积为主, 渗流区类型主要是A、B和C型; b. 4小层1砂体, 属三角洲前缘亚相沉积, 沉积微相类型主要是砂坝, 渗流区类型有A、B、C和D型

      Fig.  3.  Distribution of seepage zones and microfacies of the 3rd member of Shahejie Formation

      图  4  3小层2个不同亚流动单元油水动态变化比较

      Fig.  4.  Comparison of the oil-water dynamic changes between 31 and 32 sub-flow units

      表  1  流动单元体系划分

      Table  1.   Classification of flow unit system

      表  2  各小层单砂体之间连通井段统计

      Table  2.   Statistics on the connective wells between individual sandbodies of each substratum

      表  3  沙三中段三砂组流动单元体系划分

      Table  3.   Division of the flow unit system of the 3rd member, the 3rd member of Shahejie Formation

      表  4  各类型渗流区孔隙度、渗透率及测井曲线特征

      Table  4.   Porosity, permeability and well log characteristics of each seepage zone

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    出版历程
    • 收稿日期:  2005-06-29
    • 刊出日期:  2006-03-25

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