扶余油田X区块流动单元研究

发布时间：2018-10-13 13:00

【摘要】：我国是世界上注水开发油田比例最高的国家,大多数油田都已经进入开发中后期高含水采油阶段,东部油田更为甚之,而且我国油田地质情况复杂,原油性质差异大,储层非均质性严重,注水开发以后地下仍然有60%-70%的油未采出。扶余油田X区块自投入开发以来,已经进入高含水后期开采阶段,但目前采出程度仅为15.62%。流动单元已经是开发油田剩余油分布研究的重要方法。目前来看,在有流动单元的概念、划分方法及控制因素等方面尚未完全达成共识,且在流动单元三维建模及油藏数值模拟研究还比较薄弱。本文在参考国内外大量文献的基础上,结合扶余油田X区块储层特征,通过对沉积相和相分布研究,建立储层地质模型,分析流动单元成因,划分流动单元并建立流动单元三维模型。结合地质与流动单元研究成果,对扶余和杨大城子油层内部各小层有利区预测,为下步调整明确目标。
[Abstract]:China is the country with the highest proportion of waterflooding oil fields in the world. Most of the oilfields have entered the stage of high water-cut oil production in the middle and late stage of development, especially in the eastern oil fields. Moreover, the geological conditions of the oilfields in China are complex, and the nature of crude oil varies greatly. The reservoir heterogeneity is serious, 60-70% of the oil is not produced underground after water injection. The X block of Fuyu Oilfield has entered the late stage of high water cut since it was put into development, but the degree of recovery is only 15.622 at present. Flow unit has been an important method to study the distribution of remaining oil in oil fields. At present, there is no consensus on the concept of flow unit, partition method and control factors, and the research on three-dimensional modeling of flow unit and reservoir numerical simulation is still weak. Based on a large number of references at home and abroad, combined with the reservoir characteristics of Block X in Fuyu Oilfield, through the study of sedimentary facies and facies distribution, the geological model of reservoir is established and the origin of flow unit is analyzed. The flow unit is divided into three-dimensional models. Combined with the research results of geological and flow units, the favorable areas within the Fuyu and Yangdachengzi reservoirs are predicted, which is the clear goal for the next step adjustment.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE31

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