摘要
在常规相渗曲线归一化方法基础之上,提出相渗曲线半归一法,即只对水相相对渗透率进行归一化,而油相相对渗透率则用水相相对渗透率与油、水相对渗透率比值的乘积求取。该方法对于油相相对渗透率与含油饱和度对数直线关系较差的相渗曲线尤为适用,巧妙的避免了由于直线拟合精度低所造成的误差。将该方法应用于渤海某油田,相对渗透率与饱和度直线拟合精度均在0.99以上,较常规归一化方法精度更高。
Based on normalization method,proposed semi-normalization method to process relative permeability curves,that is,only make water relative permeability normalized.Particu-larly,when the logarithmic relationship between oil relative permeability and oil saturation of the linear is not clear,this method is applicable clever to avoid errors due to low precision linear fitting caused.The method is applied to an oilfield in Bohai,relative permeability and saturation line fitting accuracy are above 0.99,more accurate than normalization method.
出处
《石油化工应用》
CAS
2015年第9期32-35,共4页
Petrochemical Industry Application
基金
国家科技重大专项:海上油田丛式井网整体加密及综合调整油藏工程技术示范项目
项目编号:2011ZX05057-001
关键词
相渗曲线
归一化
相对渗透率
饱和度
拟合
relative permeability curves
normalization
relative permeability
saturation
fitting
