氮气采油技术在南堡2号潜山的应用

发布时间：2018-04-02 04:15

  本文选题：注氮气　切入点：剩余油　出处：《中国矿业》2017年S2期

【摘要】：南堡2号潜山油藏属于典型的孔隙-裂缝型双重介质油藏,天然水驱采出程度较低,剩余潜力大,探索合理的氮气采油技术参数对于提高油藏采收率有着重要的现实意义。在系统总结氮气采油机理的基础上,结合研究区油藏参数,通过对氮气不同注入量、注入速度、焖井时间等关键指标的数值模拟,确定了最佳注入参数。矿场实施证实了研究方法的可靠性,累计实施单井注氮气17井次,井口累增油1.21万t。
[Abstract]:Nanbao No. 2 buried hill reservoir is a typical pore fracture type dual medium reservoir with low recovery degree and large residual potential of natural water drive. It is of great practical significance to explore reasonable technical parameters of nitrogen recovery for improving oil recovery. On the basis of systematically summarizing the mechanism of nitrogen recovery, combined with reservoir parameters in the study area, the injection rate of nitrogen is different. The optimum injection parameters were determined by numerical simulation of the key indexes such as braising well time. The reliability of the research method was confirmed by the field implementation. The cumulative number of nitrogen injection wells in a single well was 17, and the wellhead cumulative oil production was increased by 12100 tons.
【作者单位】： 中石油冀东油田;
【分类号】：TE357.7
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本文编号：1698737