聚合物驱剩余油数值模拟定量描述  

THE QUANTITATIVE DESCRIPTION OF RESERVOIR NUMERICAL SIMULATION FOR POLYMER FLOODING REMAINING OIL

作　　者：曾祥平[1] 

机构地区：[1]中国石化胜利油田分公司孤岛采油厂,山东东营257231

出　　处：《西南石油大学学报（自然科学版）》2010年第1期105-111,共7页Journal of Southwest Petroleum University(Science & Technology Edition)

摘　　要：针对聚合物驱后剩余油分布更加零散,准确描述剩余油分布难度大,以孤岛油田注聚先导区为研究原型,建立精细地质模型,通过油藏数值模拟方法,对聚合物驱剩余油分布规律及其影响因素进行研究,提出了基于成因分类和形态分类的剩余油分布模式,定量描述了每种类型剩余油饱和度及其相对储量,指出厚油层顶部和压力平衡滞留区是剩余油的主要富集区,储层变异系数、地层原油黏度、夹层分布位置、注聚用量是聚合物驱受效剩余油的主要影响因素。在此基础上模拟了变形井网和水平井与直井组合井网两种开采方式,提出了聚合物驱后进一步改善后续水驱开发效果的技术思路。矿场应用表明,研究结果对聚合物驱剩余油描述与挖潜具有指导意义。After polymer flooding,the distribution of the remaining oil is even more scattered.The description of the remaining oil is more difficult.The fine geologic model is built with polymer flooding pilot test in Gudao Oilfield.By means of reservoir numerical simulation,the distribution regularity and the affecting factors of the remaining oil after the polymer flooding are researched,the macroscopic distribution pattern of the remaining oil is proposed based on the contributing factor and the morphological classification,the remaining oil saturation and the relative reserves are quantitatively described.It is pointed out that the top of the thick pay zones and the detention area of pressure balance are the main abundance zones,the coefficient of reservoir variation,the formation crude oil viscosity,the interbed distribution and the amount of the polymer injected are the main factors affecting the flooding effectiveness.The deformed well network pattern exploitation and horizontal and vertical combination well pattern exploitation are simulated,the technological thought improving water flooding effectiveness after polymer flooding is presented.Case study indicates the result is valuable to guide future remaining oil description and production.

关 键 词：数值模拟 聚合物驱 剩余油 定量描述 井网方式 

分 类 号：TE357[石油与天然气工程—油气田开发工程]