用生产测试资料求取地层参数的优化拟合分析方法

ASTUDY OF OPTIMUM MATCHING ANALYSIS TO SOLVE RESERVOIR PARAMETER BY USING PRODUCTION TEST DATA

运用生产测试技术可以同时连续测得油气井开井生产或关井压力恢复后井底压力、井底岩面流量随时间的变化，本文提出一种分析这些资料的新方法，即运用多元回归技术与优化拟合技术相结合进行分析，能快速准确地求出地层渗进率Ｋ和井壁污染系数Ｓ，运用此方法编制了计算机程序，通过多口井次资料分析表明，效果较好。

The Change of bottom-hole and sanface flow rate during a production or shut in wellwith tirne can be measured simultaneously by using production test technology. This paperpresents a new analysis method of the data,namely,the analysis method by the combinationof multinomial regression with optimum theory. It can determine the reservoir permeability Kand skin factor S quickly and correctly.A computer program is designed.The method is satis-factory in analyzing many field cases.