摘要
从存水率和水驱指数的定义出发,结合无因次注入和无因次采出公式建立存水率与水驱指数随采出程度变化的数学模型,通过绘制萨北油田实际阶段存水率和水驱指数的变化关系曲线,分析萨北开发区不同开发阶段存水率与水驱指数的变化特征。将存水率与水驱指定义结合含水率定义公式,建立在不同注采比条件下存水率与水驱指数随含水率变化的理论图版,评价萨北开发区注水开发效果,同时探讨高含水后期提高存水率的有效途径,指导油田注水结构调整。
On the basis of the definition of net injection percent and water flooding index,combined with the dimensionless injection and the dimensionless producing formula to establish a mathematical model reflecting the variation of net injection percent and water flooding index with the recovery percent of reserves,and through drawing the changing relation curves of the actual interval net injection percent and the water flooding index of Sabei oilfield,we analyzed the changing characteristics of the net injection percent and water flooding index during different stages of development in Sabei development zones,evaluated the water injection devel-opment results of Sabei development zones,meanwhile discussed the effective ways of Increasing net injection percent during the later high water cut stage so as to adjust the water flooding structure.
出处
《石油地质与工程》
CAS
2011年第1期60-62,143-144,共3页
Petroleum Geology and Engineering
关键词
萨北
存水率
水驱指数
采出程度
含水率
Sabei
net injection percent
water flooding index
recovery percent of reserves
water cut
