基于水驱特征曲线计算油水相对渗透率曲线的新方法  

A new method for calculating oil-water relative permeability by water drive curve

作　　者：周凤军 葛丽珍 王刚 童凯军 

机构地区：[1]中海油天津分公司渤海石油研究院,天津300452

出　　处：《复杂油气藏》2017年第1期50-54,共5页Complex Hydrocarbon Reservoirs

基　　金：国家重大科技专项<海上油田丛式井网整体加密及综合调整油藏工程技术应用研究>(2011ZX05024-002)

摘　　要：从一维两相渗流出发,通过引入一维非活塞式水驱油中采出程度与相渗饱和度的关系表达式,完善了两类水驱曲线公式推导,在油水相对渗透率曲线指数关系的基础上,统一了水驱曲线与油水相对渗透率曲线的相互求取,实现了利用动态数据求取实际油藏油水两相相对渗透率曲线的方法。利用数值实验手段对该方法进行了验证,理论分析以及反演结果表明:利用两种水驱曲线计算油水相对渗透率的方法是可行的,计算曲线与原始油水相对渗透率曲线基本一致。According to one dimensional,two phase flow, a relational expression between recovery degree and saturation was introduced in one dimensional, non - piston type waterflooding. And then two types of water drive curve formula were deducted. Based on the index relationship of oil and water relative permeability curves, the water drive curve and oil - water relative permeability curve were unified to calculate each other. So the dynamic data can be used to calculate the actual reservoir oil - water two - phase relative permeability curve. The method was verified by using numerical experiment means. The theoretical analysis and inversion results showed that it is feasible to the two water drive curve for calculating the oil - water relative permeability, and the calculated curve coincides well with the original oil - water relative permeability curve.

关 键 词：水驱特征曲线 相对渗透率曲线 动态资料 油藏数值模拟 公式推导 含水饱和度 

分 类 号：TE341[石油与天然气工程—油气田开发工程]