摘要
基于大庆油田过渡带地区地下原油黏度大,含蜡和含胶均高,靠单纯注水开采,提高采收率难度大,分析了萨北过渡带主力油层聚合物驱油矿场试验的驱油动态变化特点,研究了过渡带主力油层聚合物驱油的油层动用状况及驱油效果.结果表明:过渡带主力油层聚合物驱油中心井区比水驱提高采收率8%以上;聚合物驱扩大了驱替液的波及体积,提高了油层的动用状况;与纯油区聚合物驱相比,过渡带主力油层注入压力上升幅度大,采油井产液能力下降幅度也大.
The high viscosity,wax and gelatine of crude oil in transitional zone make it difficult to increase oil recovery by only water flooding displacement.This paper analyzes the dynamic characteristic changes of oil displacement of polymer flooding field test in main zone of transitional belt and deals with the swept oil reservoir and displacement efficiency.The test showed that central area in the polymer flooding of the main zone of transitional belt could increase by over 8% OOIP;polymer flooding enlarged the swept volume and increased the swept oil reservoir.Compared with the polymer flooding of pure oil zone ,the increasing amplititude of injecting pressure and the decreasing amplititude of liquid production in the main zone of transitional belt is also large.
出处
《大庆石油学院学报》
CAS
北大核心
2006年第1期39-42,共4页
Journal of Daqing Petroleum Institute
关键词
过渡带
聚合物驱油
试验
大庆油田
transitional zone
polymer flooding
test
Daqing oil field
作者简介
黄梅（1973-），女，工程师，主要从事三次采油方面的研究.
