摘要
水驱油藏进入高含水开发期以后,常规的水驱曲线对采收率的标定会出现很多问题。本文从渗流力学和物质平衡原理角度出发,推导出处于产量递减期间的油藏采油速度与采出程度之间的关系,发现存在线性特征。利用该关系可以对油藏动态和经济采收率进行标定,并给出了其适用条件。在此基础上利用孤东七区西Ng63+4的生产数据进行了实例验证。
There are much problem to calculate recovery efficiency by waterflood curve in flooding reservoir during high water cut development period. Based on percolation theory and material balance principle, draws out the relationship between oil recovery rate and recovery percent of reserves, approves its linear feature. At the same, applicable conditions are put on. The dynamic and economic recovery efficiency may be get by this curve. At last, the production data of Gudong Ng6^3＋4 reservoir are used to test the linear feature, the result shows it feasible.
出处
《内蒙古石油化工》
CAS
2007年第1期110-112,共3页
Inner Mongolia Petrochemical Industry
关键词
高含水开发期
经济采收率
采油速度
采出程度
high water cut development period
economic recovery efficiency
oil recovery rate
recovery percent of reserves
