水驱体积波及系数预测方法研究  

A study on the predicting method of the water flooding volumetric sweep efficiency

作　　者：李兵[1] 马悦[1] 

机构地区：[1]西安石油大学石油工程学院,陕西西安710065

出　　处：《石油化工应用》2017年第2期89-92,共4页Petrochemical Industry Application

摘　　要：对于水驱开发的非均质油田,体积波及系数是一个重要的评价参数。它不但可以反应水驱体积波及状况,而且也会影响水驱油田的最终可采储量和采收率。文中在考虑地层流体及孔隙体积影响的前提下,通过计算水驱油藏体积波及系数。为了准确、简便地预测水驱体积波及系数,根据水驱油田的水驱规律特征,在前人的研究基础上,将丙型水驱曲线与威布尔预测模型相结合,得到了水驱体积波及系数与开发时间和含水率的关系式。通过室内模拟实验,结果合理可靠,对同类油藏开发预测提供了借鉴经验。For the heterogeneous oilfields the water flooding volumetric sweep factor is a very important evaluation parameter, it not only represents water flooding volumetric sweep status,but also influences ultimate recoverable reserves and recovery efficiency. In this paper, considering the influence of formation fluid and the pore volume condition, and calculating the volume of water drive reservoir sweep efficiency. In order to accurately and simply predict volumetric sweep efficiency, based on the characteristics of water flooding oilfield and the previous studies, this paper associates C type water flooding curve with Weibull forecasting model, and gets the relationship among water flooding volumetric sweep efficiency, development time and water cut. The case study and application indicate that this method is reasonable, and it provides a reference for similar reservoir development prediction.

关 键 词：体积波及系数 孔隙体积 水驱油田 含水率 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]