石油与天然气地质 ›› 2004, Vol. 25 ›› Issue (1): 26-30.doi: 10.11743/ogg20040105

• 成藏机理 • 上一篇    下一篇

流动单元研究在北大港油田中的应用

窦松江1,2, 于兴河1, 李才雄1,2   

  1. 1. 中国地质大学,北京 100083;
    2. 中国石油大港油田公司,天津 300280
  • 收稿日期:2004-01-06 出版日期:2004-02-25 发布日期:2012-01-16

Flow unit study at middle and late development stages in Northern Dagang oilfield

Dou Songjiang1,2, Yu Xinghe1, Li Caixiong1,2   

  1. 1. China University of Geosciences, Beijing;
    2. Dagang Oilfield Company of PetroChina, Dagang, Tianjin
  • Received:2004-01-06 Online:2004-02-25 Published:2012-01-16

PDF (PC)

461

被引次数

24

摘要：

以北大港油田港东地区下第三系河流相沉积储层为例,通过精细储层对比、储层结构及渗流屏障的研究,港东地区垂向上细分为118个时间地层单元,平面上划分出2681个含油连通体,并根据各含油连通体储层的空间物性展布及动态分析资料,采用因子分析的方法,细分为9000个流动单元类型;在此基础上,利用数值模拟及常规油藏工程方法,逐步量化不同流动单元剩余油的资源潜力,并进一步划分了6类剩余油资源潜力类型。其中,注采井网不完善、垂向上不同流动单元级别动用程度的差异和受渗流屏障遮挡及微构造影响所形成的剩余油资源潜力区,剩余油资源潜力相对集中,是油田今后开发的重点。

关键词: 河流相, 流动单元, 岩石物理相, 渗流屏障, 渗流差异, 剩余油

Abstract:

Taking the Paleogene fluvial reservoirs in Gangdong area in Northern Dagang oilfield as an example, the reservoirs in Gangdong area can be divided into 118 time-stratigraphic units vertically and 2681oil-bearing sandbodies laterally based on fine reservoir correlation and study of reservoir structure and flow barriers. Totally 9000 flow units are defined by using factorial analysis method according to the spatial distribution of physical properties of each sand body and the dynamic analysis data. Numerical modeling and conventional reservoir engineering methods have further been used to progressively determine the quantities of the remaining oil potential in each flow unit and define 6 types of remaining oil potentials. Areas with remaining oil potentials that have been formed due to imperfect flood pattern, the difference of producing status between various vertical flow units,and the impacts of flow barriers and microstructures are the main targets of development in the future.

Key words: fluvial reservoir, flow unit, petrophysical facies, flow barrier, seepage flow difference, remaining oil

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