用效果测度灰色分析评价天然气压缩系数的计算公式

THE EVALUATING CALCULATING FORMULA OF NATURAL GAS COMPRESSIBILITY BY EFFICTIVENESS MEASUREMENT GREY ANALYSIS

将灰色系统理论中局势决策的效果测度引入灰色关联分析中，针对直接计算天然气压缩系数的许多公式，提出了评价的新方法，并对各个公式的计算结果与实测值之间的准确程度进行了排序。通过陕甘宁中部气田的实际应用表明：Ｐａｐａｙ方法是该气田较为适用的、相对准确的计算公式。同时，效果测度灰色分析考虑了数据之间动态过程的发展态势，比单纯的误差分析更为合理且直观易懂，具有计算简便、快速等优点。

hrough introducing situation decision effictiveness measurement of grey sytem theory into grey association analysis,a new method of evaluating the formula of directively calculating natural gas compressibity is proposed out.The accuracies between the results calculated by the each formula and measured values are orderd.It is proved by the application in the central gas field of Shanganning Basin that Papay method is a more suitable and more accurate formula.Because of considering the development situations among data,effectiveness measurement grey analysis is rationer than error analysis,and it is of the advantages of easy understanding,easy calculation,saving time etc.