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.
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)
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
water drive characteristic curve
relative permeability curve
production data
numerical reservoir simulation
formula derivation
water saturation
