辫状河心滩内部夹层对剩余油分布的影响
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中国石油大学(华东),中国石油大学(华东)

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TE122

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Influence of interlayer within batture bar reservoir of braided river on remaining oil distribution
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    摘要:

    以埕东油田西区馆陶组下段辫状河砂体为例,利用动、静态资料分别在单井纵向上和井间识别单期次心滩砂体,构造心滩内部夹层和垂积体的空间展布模型。根据夹层的产状,将夹层的分布模式划分为水平式、斜列式和对称式3种。在此基础上,根据对称式夹层分布特征设计实验模型,采用水驱油物理模拟手段,分析心滩内部夹层对剩余油分布的控制作用。实验结果表明,夹层对剩余油形成与分布的控制作用明显,且受到注采井射孔段位置、夹层的水平延伸范围及注采井与夹层的匹配关系等因素的影响。

    Abstract:

    Taking the braided river reservoir in the west area of Chengdong Oilfield as a case, by using dynamic and static data, the vertical and interwell single batture bar was identified, and the model of interlayer and vertical accretion body was constructed. According to the occurrence of interlayers, the distribution pattern of interlayers can be divided into three types: symmetrical type, horizontal type and diagonal type. On this basis, the experimental model was designed according to the features of symmetrical architecture type of batture bar, then remaining oil distribution characteristics controlled by interlayers within batture bar was analyzed by using the method of waterflooding physical simulation. The experimental result shows that interlayers have significant control over the distribution of remaining oil, and influenced by perforation interval location, the horizontal extensional length of interlayer, matching relationship between injection well, production well and interlayer.

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李红南,万雪蓉. 辫状河心滩内部夹层对剩余油分布的影响[J]. 科学技术与工程, 2015, 15(12): .
Li Hong-nan and. Influence of interlayer within batture bar reservoir of braided river on remaining oil distribution[J]. Science Technology and Engineering,2015,15(12).

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历史
  • 收稿日期:2014-12-14
  • 最后修改日期:2015-01-04
  • 录用日期:2015-01-22
  • 在线发布日期: 2015-04-27
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