用注水井压力落差试井资料确定油水相对渗透率  

Determining Oil-water Relative Permeability with Fall-off Test Data of Water Injection Wells

作　　者：曹琴[1] 张公社[1] 郝斐 邢金生[2] 

机构地区：[1]江汉石油学院石油工程系,湖北荆州434023 [2]大港油田公司开发事业部,天津300280

出　　处：《江汉石油学院学报》2002年第1期48-50,共3页Journal of Jianghan Petroleum Institute

摘　　要：在分析注水油藏压力不稳定特征的基础上 ,导出了由于油水性质差异产生的拟表皮因子、前缘含水率导数与油水相对渗透率、含水饱和度的关系。提出了应用注水井压力落差试井分析求取拟表皮因子、前缘含水率导数之后 ,用拟牛顿法解方程组 ,求含水饱和度指数 ,继而确定油水相对渗透率的方法。实例计算表明该方法切实可行。On the basis of pressure transient analysis of water injection reservoirs ,the relationship among pseudo skin factor, frontal water cut derivate ,oil water relative permeability and water saturation caused by the difference of oil water properties is derived The method,of which pseudo Newtonian method is used to solve the equation group to derive water saturation index, consequently determining oil and water relative permeability,is proposed after the pseudo skin factor and frontal water cut derivate are determined by fall off test analysis The calculation of example shows the method is feasible

关 键 词：注水井 压力落差 试井资料 油水相对渗透率 油藏注水 试井解释 

分 类 号：TE312[石油与天然气工程—油气田开发工程]