一种基于液油比的含水率预测方法研究与应用  

Research and Application of Prediction Method of Moisture Content Based On Liquid and Oil Ratio

作　　者：叶锋[1] 

机构地区：[1]中国石油辽河油田分公司勘探开发研究院,辽宁盘锦124010

出　　处：《天然气与石油》2014年第4期46-49,10,共4页Natural Gas and Oil

基　　金：中国石油天然气股份有限公司重大科技项目"辽河油田原油千万吨持续稳产关键技术研究"(2012 E-3004)

摘　　要：注水开发油藏特高含水期产液量上升快,传统方法预测的含水率与实际偏差较大。对油藏不同含水期采油、采液指数变化规律的研究表明:液油比是影响含水率变化的敏感因素,随着累积产液量增长,含水上升速度减缓。从丙型水驱特征曲线基本原理出发,得出液油比与产液量的二项式关系;结合含水率的定义与产液量之间的关系,推导出基于液油比的含水率预测模型。通过油田实际生产动态数据验证,新建立的含水率预测模型预测精度较高,具有推广应用价值。Water flooding reservoir fluid volume in extra-high water cut stage rises fast and moisture content predicted by using traditional methods is obviously different from actual moisture content. Conducted is study on change regularity of oil and fluid production in different reservoir water cut stages and study results show that liquid oil ratio is a sensitive factor affecting moisture content changes, moisture content rise speed will slow down with cumulative liquid production growth. Obtained is the binomial relationship between liquid oil ratio and fluid production according to the basic principle of characteristic curve of the water drive curve C type and derived is moisture content prediction model based on liquid oil ratio in combination with the relationship between moisture content and fluid production. Actual application results show that the moisture content prediction model has high accuracy and is worth popularization and application.

关 键 词：液油比 含水率 水驱曲线 特高含水期 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]