西南石油大学学报(自然科学版) ›› 2000, Vol. 22 ›› Issue (4): 76-79.DOI: 10.3863/j.issn.1000-2634.2000.04.021

• 基础理论研究 • 上一篇    下一篇

复合油藏储层中压力分布的求解

李顺初1 刘平礼2 赵立强2   

  1. 1.西南石油学院计算机科学系,四川南充637001; 2.西南石油学院石油工程学院
  • 收稿日期:2000-01-03 修回日期:1900-01-01 出版日期:2000-11-20 发布日期:2000-11-20

SOLUTION OF COMPOSITE RESERVOIR PRESSURE DISTRIBUTION MODEL

LI Shun-chu LIU Ping-li ZHAO Li-qiang   

  1. Southwest Petroleum Inst
  • Received:2000-01-03 Revised:1900-01-01 Online:2000-11-20 Published:2000-11-20

摘要: 根据油藏动态分析的实际需要,建立了考虑井筒储集和表皮效应及三种外边界条件—定压外边界、封闭外边界和无穷大边界下的油层压力分布数学模型。利用Laplace变换和Bessel函数求解出了相应的Laplace空间中的精确解,并对解的应用作出了较为详尽的阐述。尤其对在Laplace空间中直接进行试井分析的方法,指出了其具体的应用步骤,为实际应用提供了一个新的途径。

关键词: 复合油气田, 数学模型, Laplace空间, 压力分布, 动态分析

Abstract: To meet the need of composite reservoir performance analysis, a formation pressure distribution model is developed,which takes into consideration the effect of wellbore storage,skin factor and three kinds of outer boundary conditions—constant pressure outer boundary, closed outer boundary, infinite
boundary. The exact solution of the model in Laplace space is obtained by using Laplace transformation and Bessel function,and the application of the solution is discussed in detail. The method of well testing directly in the Laplace space is particularly described, and the specific procedures of its application are presented.

Key words: pressure distribution, mathematical model, laplace space, performance analysis

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