【作者】 王改云；

【导师】 杨少春；

【作者基本信息】 中国石油大学 ， 矿产普查与勘探， 2007， 硕士

【摘要】 储层非均质性是影响油气渗流和驱替过程最直接的因素之一,对剩余油的分布有较大影响。论文以胜坨油田三区东三段主力储层为研究对象,开展沉积微相研究,详尽分析储层的微观特征及隔夹层特征,利用测井解释参数计算非均质综合指数,研究储层的层内、层间及平面非均质特征,建立东三段储层的非均质模型,在此基础上探讨储层非均质性的影响因素,并分析其与剩余油分布之间的关系。对研究区目的层主要取得以下认识:①揭示出胜三区东三段沉积微相类型及展布特征,建立了沉积相模式;②详细分析出储层的微观特征,认为东三段的微观非均质性较强,并分相带建立了孔隙结构非均质模式;③总结出东三段储层的隔夹层类型、特征、成因及空间分布规律;④非均质综合指数的运用使储层非均质性的定量刻划更为精确,并得出了层内非均质性中等,层间非均质性较强,平面非均质性以中等-较强为主,且各层差异较大的认识;⑤预测剩余油主要分布在非均质性由中等到较强的过渡地带。更多还原

【Abstract】 Reservoir heterogeneity is one of the most direct factors influencing onthe seepage and drive of petroleum and plays an important role in thedistribution of remaining-oil. The thesis is focused on the main reservoir ofthe thrid members of Dongying formation of the thrid block in Shengtuooilfield.Bydevelopingtheresearchofsedimentarymicrofacies, the reservoirmicrocharacteristics and the characteristics of the barrier beds and interbedsare analysed in detail. Then heterogeneous synthetic index is calculated byuse of log interpretation parameters. Interlayer, intrastratal and planeheterogeneity are analysed, and the reservoir heterogeneity model isestablished. On the basis of these studies, the main influential factors ofreservoir heterogeneity and the relation between heterogeneity andremaining-oilareopenedout.Following achievements have been obtained in this thesis: First,establishing the model of sedimentary microfacies; Second, pointing out thatits micro-heterogeneityis strong, and establishing the heterogeneitymodel ofpore structure in different microfacies; Third, generalizing the types,characteristics, contributingfactors, and spacedistributionstyleofthe barrierbeds and interbeds; Then, obtaining conclusions that interlayer heterogeneity is middleandthat internal heterogeneityis stronger.Thedistributionofplaneheterogeneityis different indifferent layers, and thedegreeofreservoirplaneheterogeneity is mainly middle to stronger. Finally, considering thatremaining oil is distributed in the transition zone between middle andstrongerheterogeneity.更多还原