注入介质对特低渗透油藏采收率影响实验研究  

Experimental Study on the Effect of Injection Medium on Recovery of Ultra-Low Permeability Reservoirs

作　　者：刘芳娜 张馨予 付晨阳 吕远 管雅倩 Liu Fangna;Zhang Xinyu;Fu Chenyang;Lv Yuan;Guan Yaqian(Research Institute of Shanxi Yanchang Petroleum(Group)Corp Ltd,Xi'an Shanxi 710000)

机构地区：[1]陕西延长石油(集团)有限责任公司研究院,陕西西安710000

出　　处：《石化技术》2022年第9期159-161,共3页Petrochemical Industry Technology

摘　　要：为了探究不同注入介质对特低渗透油藏采收率的影响,以衰竭开采实验作对比,开展了不同单一介质(N_(2)、伴生气、地层水)、水气交替等一系列室内实验研究。结果表明,水气交替注入比单一介质驱油采收率要高,衰竭后进行水驱加伴生气驱开采效果最好,驱油效率可高达75.06%。In order to explore the effect of different injection media on the recovery of ultra-low permeability reservoirs,a series of indoor experimental studies on different single media(N_(2),associated gas,formation water)and water gas alternation are carried out by comparing the depletion production experiment. The results show that the oil recovery of water gas alternate injection is higher than that of single medium displacement. The production effect of water drive and associated gas drive after depletion is the best,and the oil displacement efficiency can be as high as 75.06%.

关 键 词：特低渗透油藏 注入介质 室内试验 采收率 

分 类 号：TE327[石油与天然气工程—油气田开发工程]