不同二类油层聚合物驱区块开发效果研究

Study on development effect of polymer flooding blocks in different class Ⅱ reservoirs

本文根据二类油层工业化区块基本概况地质概况,通过物理模拟,对比分析二类油层各区块聚驱开采特点。研究注入压力、注入浓度、流动压力、产液量的变化及分层、注水、调剖等措施对波及效率、驱油效果的影响,建立一套判定聚驱驱替效果和调整注入参数的方法,实现实时分析油井生产数据、控制给小层波及状况、降低聚驱过程中的不确定性和风险因素,改善聚驱效果,提高油藏采收率。

In this paper,according to the basic situation of the two types of oil reservoirs,the physical charac-teristics of the two types of reservoirs are analyzed and compared.The injection pressure and the influence of con-centration,flow pressure,fluid volume changes and stratification,water injection,profile control of sweep efficiency and oil displacement effect were studied,a determination method of polymer flooding displacement effect and ad-justment of injection parameters was established,real-time analysis of oil well production data,to control layer af-fects the condition,to reduce the uncertainty in the process of polymer flooding and risk factors,improve the effect of polymer flooding,the oil recovery efficiency.