摘要
采用合适的注入介质进行注气开采可以有效提高油藏地层能量,增强地层原油流动能力,这是目前提高油藏油井产量的关键措施之一,因而研究不同注入介质对地层原油高温高压物性的影响对注入介质的优选工作有着重要的指导意义。针对顺北油藏,采用PVT地层流体分析仪,测定了SHB1-2H地层原油的常规高温高压物性以及不同注入介质条件下地层原油的高温高压物性。结果表明:SHB1-2H地层原油属于具有高收缩性的轻质油,注气可以显著提升原油膨胀能力、降低原油粘度,从整体效果而言,相较于注CH4和CO2,注N2对SHB1-2H地层原油具有更优的增能降粘效果。
The use of suitable injection media for gas injection is an effective measurement for improving the reservoir formation energy and enhance the flow capacity of the formation crude oil.Therefore,it is of great significance to study the effects of different injection media on the properties of formation crude oil at high temperature and high pressure.In this paper,PVT formation fluid analyzer was used to measure the high-temperature and high-pressure properties of SHB1—2 H formation crude oil and those of formation crude oil under different injection media conditions in Shunbei reservoir.The results show that shB1-2 H formation crude oil is light oil with high shrinkage,and gas injection can significantly improve the expansion capacity and reduce the viscosity of the crude oil.Compared with CH4 and CO2 injection,N2 injection has a better energy-increasing and viscosity-reducing effect on shB1-2 H formation crude oil.
作者
李婷婷
冯一波
陈峥
朱传勇
巩亮
LI Ting-ting;FENG Yi-bo;CHEN Zheng;ZHU Chuan-yong;GONG Liang(Petroleum Engineering and Technology Research Institute,Northwest Oil field Branch,Sinopec,Urumqi,Xinjiang,830011,China;Sinopec Key Laboratory of Enhanced Recovery for Fracture-Cave Oil Reservoir,Urumqi,Xinjiang,830011,China;College of New Energy,China University of Petroleum(East China),Qingdao,Shandong,266580,China)
出处
《内蒙古石油化工》
CAS
2020年第10期105-108,共4页
Inner Mongolia Petrochemical Industry
基金
国家科技重大专项-塔里木盆地碳酸盐岩油气田提高采收率关键技术示范工程(2016ZX05053)
关键词
北油藏
注入介质
优选
体积系数
粘度
shunbei oil reservoir
injection medium
optimization
volume coefficient
viscosity
