复合河道砂体劈分及隔夹层研究——以大庆油田北一区断东葡Ⅰ2小层为例
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Study on Disjoining of Complex Sand-body and Interlayers——with PⅠ2 layer in the east of the fault block in Beiyi district of Daqing oilfield as an example
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    摘要:

    目前大庆油田已进入高含水开发阶段,厚油层内剩余油的挖潜成为重要的研究内容。厚油层内隔夹层的存在使其内部非均质性更加复杂,进而严重影响剩余油的分布。本文以大庆油田北一区断东为研究区,研究厚砂劈分及隔夹层特征,为厚油层内剩余油的挖潜提供可靠的依据。首先利用研究区目的层的沉积特征和测井资料确定了复合砂体的可分性,其次确定不同期次河道砂体间沉积的隔夹层为复合砂体的劈分依据,最后根据成因和岩性将隔夹层划分为泥质夹层、钙质夹层和物性夹层三种类型。本文将复合砂体劈分与隔夹层结合研究。

    Abstract:

    At present the Daqing oilfield has entered the high water cut stage, and tapping remaining oil in thick oil reservoirs has become a major subject. The inner interlayers caused strong heterogeneity of thick oil reservoirs,and made the distribution of the remaining oil more complex.This paper takes the east of the fault block in Beiyi district of Daqing oilfield as the target area,to study the disjoining of thick sandbodies and the characteristics of inner interlayers and to provide a reliable evidence for tapping the remaining oil in the thick oil reservoirs.First,on the basis of sedimentary characteristics and logging data ,we have confirmed the separability of the complex sand-body . Second,we’ve determined the inner layers deposited between different channels as a separability proof of the complex sand-body.Lastly,through the study on the causes and lithology,we have divided the interlayers into three types,that is muddy interlayers, calcareous interlayers and physical interlayers.This paper has tried to combined the disjoining of complex sand-body with the interlayers.

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杜微. 复合河道砂体劈分及隔夹层研究——以大庆油田北一区断东葡Ⅰ2小层为例[J]. 科学技术与工程, 2011, (16): .
duwei. Study on Disjoining of Complex Sand-body and Interlayers——with PⅠ2 layer in the east of the fault block in Beiyi district of Daqing oilfield as an example[J]. Science Technology and Engineering,2011,(16).

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  • 收稿日期:2011-03-04
  • 最后修改日期:2011-03-09
  • 录用日期:2011-03-14
  • 在线发布日期: 2011-04-28
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