摘要
在认识下二门油田二次聚合物驱见效特征及剩余油分布特点的基础上,通过注聚阶段提高注入浓度、追加段塞、部署完善井及合理动态调配等系列调整工作,实现了二次聚驱大幅提高采收率的目标。在下二门油田潜力区部署的3口油井投产初期日产油10.5～22t,含水20%～70%;单元二次注聚见效高峰期增油倍比达3.04,含水降低7.5%,阶段提高采收率4.96%。
On the basis of effective characteristics of secondary polymer flooding and remaining oil distribution features , by enhancing injection concentration in polymer injection period , adding slugs , deploying improved wells and other reasonable dynamic adjustment , the secondary polymer flooding target , greatly enhanced recovery has been achieved.The initial daily oil production of 3 oil wells in potential area of Xia 'ermen oilfield is about 10.5～22 t , with water cut of 20%～ 70%.After secondary polymer flooding , the effective peak increased oil is about 3.04 times before , with decreased water cut of 7.5%and enhanced recovery of 4.96%.
出处
《石油地质与工程》
CAS
2013年第4期131-133,76,共4页
Petroleum Geology and Engineering
关键词
二次聚合物驱
剩余油
段塞
动态调配
采收率
secondary polymer flooding
remaining oil
slug
dynamic adjustment
recovery
