摘要
LZ油田阜二段油藏具有储层薄、特低渗、强非均质性、及弱边水驱动的特征。油藏经压裂改造后能获得一定产能,但递减大;注水开发后,油井见效快水窜亦快,油藏进入低速低效开发。通过数模量化表征油水分布规律,开展CO_(2)驱改善开发效果研究,通过数模进行参数优化,确定最优实施方案。矿场初期实践表明取得了较好增产效果,采油速度明显上升,预计最终提高采收率6.4%。
The second formation of Funing in LZ Oilfield is characterized by thin reservoir, ultra-low permeability, strong heterogeneity and weak edge water drive. After fracturing, the reservoir can obtain a certain productivity, but the decrease is large. After the water injection development, the oil well response is quick and the water channeling is fast, and the oil reservoir enters low speed and low efficiency development. The distribution law of oil and water was quantitatively characterized by numerical modeling, and the development effect of CO_(2) flooding was studied. The parameters were optimized by numerical modeling to determine the optimal implementation plan. The initial practice of the oil field showed that good stimulation effect was achieved, and the oil recovery rate increased significantly. It was estimated that the final recovery factor would be increased by 6.4%.
作者
王婧
WANG Jing(Taizhou Oil Production Plant of Sinopec Huadong Branch,Taizhou Jiangsu 225300,China)
出处
《辽宁化工》
CAS
2021年第3期413-415,共3页
Liaoning Chemical Industry
关键词
特低渗
水窜通道
油水分布
CO_(2)驱
提高采收率
Extra low permeability
Water breakthrough channel
Distribution of oil and water
CO_(2)flooding
Enhanced oil recovery
