油水两相流动试井分析方法研究  

A Study of the Method to Well Testing Analysis with Water and Oil Two Phase Flow.

作　　者：艾广平[1] 苏云行[1] 高淑玲[1] 刘运涛[1] 

机构地区：[1]大庆油田第四采油厂地质大队

出　　处：《油气井测试》2001年第1期13-17,共5页Well Testing

摘　　要：研究了油水两相流动条件下的压力恢复试井问题。推导出含水饱和度偏微分方程和压力分布偏微分方程 ;在回归出单井平均相对渗透率曲线的基础上 ,通过求两个偏微分方程的数值解 ,求出了径向上的含油饱和度分布、地层渗透率K和平均地层压力 ;由新引进的变量AD 和BD 之间的直线关系 ,求出了井筒存储系数C值。同时 ,给出了井筒污染系数S值。通过与Gringarten图版法的解释结果对比 ,表明本文给出方法的解释结果比较准确可靠。This paper studied the problems in pressure build up test under the condition of water and oil two phase flow,derived the water saturation partial differential equation and pressure distribution partial differential equation.Based on regressing the curves of average relative permeability in single well,that the oil saturation distribution,permeability (K) and average formation pressure have been gotten through seeking numerical solution to this two equations.By the linear relationship between newly introduced variable A D and B D ,wellbore storage coefficient (C) has been reached,meanwhile,wellbore's damage coefficient (S) has been given.Compared with the interpretation results of Gringarten chart board,it is indicated that the results provided by this paper are comparatively accurate and reliable.

关 键 词：油藏 相对渗透率曲线 试井解释 分析方法 

分 类 号：TE353[石油与天然气工程—油气田开发工程]