摘要
文中从水动力学角度出发,针对复杂断块油藏的储层特征开展了一系列物理模拟实验,对注采交替提高采收率机理进行了深入探讨。实验表明:对复杂断块油藏实施注采交替开发,可以实现特高含水期剩余油的有效动用,其机理为水动力作用下的压差交变、液流转向、扩大波及。与提液水驱实验结果对比,注采交替可以有效降低水油比,提高注水利用率,降低注水成本,减缓高渗层的水油比上升速度,提高中渗层的动用率。
Based on the hydrodynamics,a series of physical simulation experiments were carried out for the characteristics of complex fault-block reservoirs,and the mechanism of alternately increasing oil recovery by injection was deeply discussed in this paper.The experiment shows that the alternate development of complex fault-block reservoirs can realize efficient use of the remaining oil in ultra-high water cut stage.The mechanism is the alternation of pressure difference,flow direction and expansion of the hydrodynamic action.Compared with the experimental results of hydraulic lift,the injection-production alternation can effectively reduce water-oil ratio,improve water injection utilization rate and reduce water injection cost,slow down the rate of increase of water-oil ratio in high permeable layer,and improve the utilization rate of medium permeable layer.
作者
孙志刚
杨海博
杨勇
张红欣
陈霆
王建
YANG Haibo;SUN Zhigang;YANG Yong;ZHANG Hongxin;CHEN Ting;WANG Jian(Research Institute of Exploration and Development,Shengli Oilfield Company,SINOPEC,Dongying 257015,China)
出处
《断块油气田》
CAS
CSCD
北大核心
2019年第1期88-92,共5页
Fault-Block Oil & Gas Field
基金
国家科技重大专项课题"胜利油田特高含水期提高采收率技术"(2016ZX05011-002)
关键词
复杂断块
水动力学
水驱机理
注采交替
物理模拟
complex block
hydrodynamics
water flooding mechanism
injection-production alternating
physical simulation
