二类油层聚合物驱全过程跟踪调整方法研究

发布时间：2018-01-05 02:23

本文关键词：二类油层聚合物驱全过程跟踪调整方法研究　出处：《东北石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：二类油层的划分标准为渗透率介于80~600?10?3μm2,有效厚度介于1~2.5m之间,单元间渗透率级差在1.4~3.5之间。二类油层的物性与主力油层相比存在明显差异,因此在聚合物驱跟踪调整方法的选择上也应有别于主力油层,并且其开发效果的影响因素也与主力油层不同,需建立一套新的二类油层聚驱全过程的跟踪调整方法。本文通过统计分析二类油层实际区块聚合物驱开发效果,研究了影响二类油层聚合物驱开发效果的动静态因素,分析了油藏参数、化学剂参数、注入参数及井距对二类油层聚合物驱开发效果的影响。研究了建立二类油层聚合物驱数值模拟概念模型的方法,分别建立了二层、三层、五层非均质聚合物驱数值模拟概念模型,设计了不同动、静态参数条件下的概念模型方案278个,进行了聚合物驱注入能力研究。分析了二类油层聚合物驱调剖、酸化、压裂在不同时期、不同的油藏参数和生产动态参数条件下平面和纵向的波及规律,研究了二类油层聚合物驱调整措施的选井选层原则,确定了聚合物驱全过程不同含水阶段不同措施下的开发效果及技术界限。
[Abstract]:The classification standard of the second class oil reservoir is that the permeability is between 80 ~ 600? 10? 3 渭 m ~ 2, effective thickness is between 1 ~ 2.5 m, and the permeability difference between units is between 1.4 ~ 3.5. The physical properties of the second type reservoir are obviously different from that of the main reservoir. Therefore, the selection of polymer flooding tracking adjustment methods should also be different from the main reservoir, and its development effect factors are also different from the main reservoir. It is necessary to establish a new method for tracking and adjusting the whole process of polymer flooding in the second class oil reservoir. In this paper, the development effect of polymer flooding in the real block of the second class reservoir is analyzed statistically. The dynamic and static factors affecting the development effect of polymer flooding in the second class reservoir are studied, and the reservoir parameters and chemical agent parameters are analyzed. The effect of injection parameters and well spacing on the development effect of polymer flooding in the second class reservoir. The method of establishing the conceptual model of polymer flooding numerical simulation for the second class reservoir is studied, and the second layer and the third layer are established respectively. Numerical simulation conceptual models of five-layer heterogeneous polymer flooding are designed and 278 conceptual models with different dynamic and static parameters are designed. This paper studies the injection ability of polymer flooding and analyzes the sweep law of plane and longitudinally under the conditions of polymer flooding profile control acidification and fracturing in different periods different reservoir parameters and production performance parameters. The principle of well selection and reservoir selection for the adjustment measures of polymer flooding in the second class oil reservoir is studied, and the development effect and technical limit are determined under different water cut stages and measures in the whole process of polymer flooding.
【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】：TE357.46

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