关键词: 油藏动态分析, 开发系统, 油田评价模型, 挖潜措施, 水驱油

Abstract: From the current development situation,many Chinese old oil fields belong to mature oil fields.How to deal with these oil fields,find residual oil efficiently and quickly are important to the engineers.A new,practical method is proposed for describing the waterflooding of a mature reservoir.The technique is based on the ideas of large scale system theory.In this technique,the reservoir is regarded as a large scale system composed of inject wells,oil wells and pay bed.Combing probability and statistics,control theory,random signal processing,the mathematical models on assessing the dynamic situation of a well production,well-to-well interference and efficiency of waterflooding was developed.With these models,it is easy and quick to analyze integrately the fluid distribution of different development stage,residual oil area,and drainage state.The proposed technique has been successfully tested in some fields.

Key words: performance analysis, large scale system, assessment model, waterflooding, residual oil