计算物理 ›› 2008, Vol. 25 ›› Issue (3): 296-300.

• 研究论文 • 上一篇    下一篇

考虑变井筒存储的三重介质凝析气井压力动态分析

张艳玉1,2, 吴晓东1, 聂法健2   

  1. 1. 中国石油大学(北京)石油工程学院, 北京 102249;
    2. 中国石油大学(华东)石油工程学院, 山东 东营 257061
  • 收稿日期:2006-11-16 修回日期:2007-06-11 出版日期:2008-05-25 发布日期:2008-05-25
  • 作者简介:张艳玉(1963-),女,江苏丰县,教授,博士,从事油藏工程的教学和研究工作.

Pressure of Triple Porosity Condensate Gas Reservoir with Variable Wellbore Storage

ZHANG Yanyu1,2, WU Xiaodong1, NIE Fajian2   

  1. 1. College of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;
    2. College of Petroleum Engineering, China University of Petroleum, Dongying 257061, China
  • Received:2006-11-16 Revised:2007-06-11 Online:2008-05-25 Published:2008-05-25

摘要: 基于Xu & Lee的凝析气井试井分析数学模型,采用Hegeman提出的井筒相再分布压力的误差函数表达式,建立考虑变井筒存储的三重介质凝析气井试井解释数学模型.通过Laplace变换和Stehfest数值反演进行求解,绘制其压力及压力导数曲线,并分析研究井筒相再分布压力系数等对压力和压力导数动态的影响.

关键词: 变井筒存储, 凝析气, 压力动态, 三重介质

Abstract: In a condensate gas reservoir welhest model of Xu & Lee, error function express of wellbore phase redistribution is adopted and a mathematical model of variable wellbore storage in triple porosity condensate gas reservoir is shown. With Laplace transformation and Stehfest inversion, effects of pressure parameters on pressure and differential of pressure are analyzed. Typical pressure curves are given.

Key words: variable wellbore storage, condensate gas, pressure behavior, triple porosity systems

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