克拉玛依油田稠油油藏氮气泡沫驱应用

发布时间：2018-06-27 07:08

本文选题：克拉玛依油田 + J井区　；参考：《新疆石油地质》2017年01期

【摘要】：克拉玛依油田九区J230井区上侏罗统齐古组稠油油藏储集层非均质性强、油层薄,天然能量低。随着蒸汽吞吐油井生产轮次增高,油田开采步入中—后期,储集层含油饱和度大幅度降低,剩余油分布复杂,地层压力低,高含水井逐年增多,开发难度增大,油田采油速度和经济效益大幅度下降。1995年开始开展了注氮气辅助吞吐的矿场试验,应用实践表明:注氮气后可以有效补充地层能量,延长吞吐生产时间,提高稠油热采开发效果。然而,多轮次注氮气辅助吞吐开采后,注气井汽窜矛盾突出,为此开展了氮气泡沫辅助吞吐及调驱试验研究。研究结果表明,高温泡沫剂发泡性和稳定性好,用在非均质性强的普通稠油油藏,可显著提高采收率。
[Abstract]:The reservoir heterogeneity, thin reservoir and low natural energy of heavy oil reservoir of Qigu formation of Upper Jurassic in J230 well area of Jiamayi Oilfield are strong. With the increase of the production cycles of steam stimulation wells, the oil saturation of reservoir decreases greatly, the remaining oil distribution is complex, the formation pressure is low, the number of high water cut wells increases year by year, and the development difficulty increases. The oil recovery speed and economic benefit of the oilfield have been greatly reduced. The field test of nitrogen injection assisted huff and puff has been carried out since 1995. The application practice shows that nitrogen injection can effectively replenish the formation energy and prolong the production time of huff and puff. To improve the development effect of heavy oil thermal recovery. However, after multiple rounds of nitrogen injection assisted huff and puff production, the contradiction of steam channeling in gas injection wells is prominent. Therefore, nitrogen foam assisted huff and puff and control flooding experiments are carried out. The results show that the foaming property and stability of high temperature foaming agent are good, and the oil recovery can be improved significantly when it is used in common heavy oil reservoirs with strong heterogeneity.
【作者单位】：中国石油新疆油田分公司实验检测研究院;中国石油大学文理学院;新疆华隆科技股份有限公司;
【基金】：国家油气重大专项(2016ZX05010-005)
【分类号】：TE357.46

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