油藏模拟中的水体及收敛问题研究  

Water Body and Convergence Problem in Reservoir Simulation

作　　者：赵长庆[1] 常晓平[1] 吕晓华[1] 陈虎[1] 熊英[1] 

机构地区：[1]河南油田公司勘探开发研究院,河南南阳473132

出　　处：《大庆石油地质与开发》2003年第2期31-34,共4页Petroleum Geology & Oilfield Development in Daqing

摘　　要：油藏数值模拟技术被誉为"现代油藏工程技术",在该项技术的应用过程中,定义一个合适的水体模型及分析产生不收敛问题的原因是两个难点问题。首先结合ECLIPSE黑油模拟器,分析了油藏模拟应用研究中比较常见的网格水体、数值水体、Fetchovich和Cater Tracy分析水体及Flux流动边界水体等5种类型水体的概念、定义、调整方法以及各自的适用范围、优缺点等,认为数值水体方便易用并且非常灵活,而Fetchovich分析水体的计算速度快并且适用范围广;其次,从收敛的数学定义出发,就容易导致不收敛问题出现的数值模拟网格几何设计、PVT数据表、饱和度函数表、程序的缺省设置不符合实际单元需要等问题等进行了分析,提出了相应的解决方法。Reservoir numerical simulation is regarded as “modern reservoir engineering technique”. In its application, the difficulty includes determining a suitable water body model and analyzing the cause of non convergence. This paper uses ECLIPSE black oil simulator to analyze the concept of grid water body, numerical water body, Fetchovich and Cater Tracy analyzed water body, and flux flow boundary water body, which are usually used in reservoir simulation. It also discusses their definition,adjustment method, advantages and disadvantages. It shows that numerical water body is feasible and flexible, Fetchovich and Cater Tracy analyzed water body has a high calculation speed. Secondly, starting from the mathematic definition,it analyzes the grid geometry design,PVT data,saturation fuction,and the default setting of the program of the cause of convergence,and proposes some relative solutions.

关 键 词：迭代法 收敛 水体 油藏模拟 饱和度函数表 

分 类 号：TE319[石油与天然气工程—油气田开发工程]