油藏数值模拟效果的定量评价方法

A METHOD FOR EVALUATING THE RESULTS OF NUMERICAL RESERVOIR SIMULATION/

油藏数值模拟工作效果的评价以往都是依靠人为的定性判断来实现的 ,没有一个统一的定量评定标准。结合多年的油藏数值模拟理论研究与实践经验 ,作者对数值模拟效果的定量评价方法进行了探索。将区块综合相对误差、单井平均相对误差、瞬时相对误差和单井综合相对误差作为模拟效果评价的量化指标 ,其中第一个误差用来定量评价区块的拟合效果 ,后三个误差用来定量评价单井的拟合效果。利用这些指标对孤东油田二区馆陶组中馆 4 2 、4 5小层的数值模拟效果进行了定量评价。结果表明 。

There has no a consistent quantitative criterion to evaluate the results of numerical reservoir simulation at present. Generally, it is qualitatively evaluated artificially. In this paper some quantitative indexes to evaluate the results of reservoir simulation are proposed. The essential concepts of the composite relative error for block, the average relative error for individual well, the instant relative error and the composite relative error for individual well are presented. The first of above errors can be used to evaluate the simulation result of block quantitatively, the others can be used to evaluate the simulation result of individual wells quantitatively. This paper evaluates quantitatively the numerical simulation result of two beds in Gudong oilfield. The results of different numerical reservoir simulation by using different simulation software and for different blocks can be evaluated with a consistent quantitative criterion.