严重非均质油藏二次开发实践与认识  

Practice and Recognition of Secondary Development of Heavy Heterogeneous Reservoirs

作　　者：贾云超 

机构地区：[1]中石化中原油田分公司采油三厂,山东莘县252434

出　　处：《石油天然气学报》2014年第11期174-177,10,共4页Journal of Oil and Gas Technology

摘　　要：针对胡状集油田严重非均质油藏一类层目前高含水、高采出的开发状况,分析了油藏非均质特征及其剩余油分布特点,特别对韵律层层内隔夹层的识别、展布及层内剩余油分布开展了研究,对剩余油分布类型提出了新的划分方法。依照储层物性相近、剩余油饱和度相近的原则,适当打破原有开发层系进行二次重组开发,实现深度水驱。同时通过注水方式的改变,把原来影响开发的不利因素变成有利因素,从而达到提高储量动用程度、改善开发效果的目的,采收率得到大幅度提高。In allusion to the situation of high water cut and high fluid production in the first grade of target zone of heavy heterogeneous reservoirs of Huzhuangji Oilfield,the characteristics of the heterogeneous reservoirs and the distribution of remaining oil were analyzed,especially the recognition and distribution of the barriers and interbeds in the inner rhythmic layers were studied,a new method was proposed for dividing the distribution types of remaining oil.In accordance with the principles of similarity in reservoir properties and residual oil saturation,the original development strata are appropriately broken down for secondary reorganization and development to achieve water flooding in depth.Simultaneously,in the way of changing water injection mode,the original negative factors affecting the development are turned to the favorable factors to improve the reserves producing degree and the effect of oil development,therefore the oil recovery is greatly improved.

关 键 词：非均质油藏 剩余油分布 韵律层 隔夹层 

分 类 号：TE327[石油与天然气工程—油气田开发工程]