孤岛油田中一区聚合物驱后油层的波及状况  

Sweep conditions of oil reservoirs after polymer flooding.

作　　者：姜颜波[1] 

机构地区：[1]胜利油田有限公司地质科学研究院

出　　处：《油气地质与采收率》2005年第1期66-67,70,共3页Petroleum Geology and Recovery Efficiency

基　　金：该文为中国石油化工集团公司重点科学技术研究开发项目(P01043)的部分研究成果

摘　　要：聚合物驱提高原油采收率的主要机理是扩大波及系数,聚合物驱后油层波及状况的研究是聚合物驱效果评价和进一步提高采收率的基础。文章结合油藏数值模拟和密闭取心井资料对孤岛油田中一区聚合物驱后油层平面、层间、层内的波及状况进行了系统研究。结果表明,聚合物驱可有效地提高油层的动用状况,扩大平面波及系数,减小层间差异,使层内纵向动用更加均匀。Main mechanism of the polymer flooding for enhancing oil recovery is to extend the swept volume. Research on sweep conditions of the oil reservoir after polymer flooding is the foundation of effect evaluation and further enhancing oil recovery.Combined with reservoir numerical simulation and sealing core drilling data,the sweep conditions on plane,in layer and between layers after polymer flooding were studied in block No.1 of the central area of Cudao oilfield. Results show that polymer flooding can improve the producing reserves effectively, extend the plane sweep efficiency,reduce the difference between layers and balance the in-layer vertical producing.

关 键 词：聚合物驱 油层 孤岛油田 波及系数 密闭取心井 提高原油采收率 油藏数值模拟 状况 扩大 差异 

分 类 号：TE357[石油与天然气工程—油气田开发工程] TE358