大庆油田聚合物驱特征评价方法及其应用  

The Evaluation Method and Application of Polymer Flooding in Daqing Oilfield

作　　者：郭文敏[1] 吕爱华[1] 吴蔚[2] 刘同敬[3] 

机构地区：[1]江苏工业学院机械与能源工程学院,江苏常州213000 [2]大庆油田采油一厂,黑龙江大庆163000 [3]中国石油大学提高采收率研究中心,北京102249

出　　处：《内蒙古石油化工》2010年第11期1-3,共3页Inner Mongolia Petrochemical Industry

基　　金：国家重点基础研究项目"大幅度提高采收率的基础研究"(G1999022511)

摘　　要：聚合物本身作为一种重要的驱油用剂,具有驱油及示踪双重作用,根据油井见聚与见效关系,可以反映油井见效机理,利用聚合法聚类分析,以油井见聚时间、见效时间、含水率降低幅度和见效有效期为样本因子进行聚类,在分类基础上统计各类储层参数及非均质情况,结果表明大庆油田表外储层,最佳聚驱选井静态资料范围渗透率450mD左右,洛仑兹系数0.3以及突进系数为2左右为最佳聚驱油藏,该结果为聚驱后进一步提高采收率以及今后聚合物驱的选区提供一定的指导作用。As an important oil displacement agent,polymer have the two role of flooding and tracer.the relationship between polymer breaking time and the starting response time,the mechanism of polymer flooding can be showed.Utilising clustering analysis method,using polymer breaking time,starting response time,scope of water cut decline and term of validity as samples to clustering,on the base of classification,statistics various reservoir parameters and aeolotropism level.The results show that the optimum permeability for polymer flooding of the useless reservoir of Daqing oilfield is 450mD,coefficient of Lorentz is 0.3 and coefficient of rush is 2.The results provide a definite guide role for enhanced oil recovery after polymer flooding and block chosing of polymer flooding.

关 键 词：聚合物驱 聚类分析 非均质性 驱油机理 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]