西南石油大学学报(自然科学版) ›› 2004, Vol. 26 ›› Issue (2): 38-41.DOI: 10.3863/j.issn.1000-2634.2004.02.011

• 石油与天然气工程 • 上一篇    下一篇

低速非达西渗流复合油藏DST段塞流试井分析

蒋维军1 贾永禄2 刘长印3 秦旭生4 王健松4   

  1. (1.渤海油田采油公司,天津塘沽300452; 2.西南石油学院; 3.中原油田井下作业公司; 4.新疆彩南油田作业区)
  • 收稿日期:2003-04-10 修回日期:1900-01-01 出版日期:2004-04-20 发布日期:2004-04-20
  • 通讯作者: 蒋维军

WELL TEST ANALYSIS OF SLUG FLOW IN COMPOSITE RESERVOIRS OF LOW-VELOCITY NON-DARCY FLUID FLOW

JANG Wei-jun1 JIA Yong-lu2 LIU Chang-yin3 et al.
  

  1. (Oil Production Corp of Bohai Oil Field, Tianjin 300452, China)
  • Received:2003-04-10 Revised:1900-01-01 Online:2004-04-20 Published:2004-04-20
  • Contact: JANG Wei-jun

摘要: 在分析实际低速非达西复合油藏DST测试非自喷井渗流规律的基础上,导出了其有效井径数学模型,并利用Laplace变换及特殊物理方程理论,导出了该模型的拉氏空间解析解;利用简便的Stehfest数值算法进行数值反演,得出了实空间解,绘制了无因次样板曲线。可有效运用于现场DST段塞流试井分析。

关键词: 非达西流, 复合油藏, 段塞流, DST测试, 数学模型, 启动压力梯度

Abstract: Based on the low-velocity non-darcy fluid flowtheory in porou media of Non-Open flowwells in composite reservoirs, the effective wellbore radial model of this kind ofwell testwas derived, the solution of this model was gotten in Laplace space with Laplace transfor mation and special physical equations theory, then the real space solution was gotten by convenient Stehfest’s numerical Laplace revers transformation. The new type curve of the model was also obtained.The model described in this paper can be used for slug well tes
analysis in low permeability reservoirs.

Key words: Non-Darcy flow, composite reservoirs, slug flow, DSTwell test, mathematical model, gradient of kick-off pressure

中图分类号: