西南石油大学学报(自然科学版) ›› 2006, Vol. 28 ›› Issue (2): 52-55.DOI: 10.3863/j.issn.1000-2634.2006.02.014

• 石油与天然气工程 • 上一篇    下一篇

考虑重力超覆的稠油热采试井分析模型研究

霍进1,2 贾永禄1 余佳1 吴成友1 李虹3 郑爱萍1


  

  1. (1.新疆油田公司重油开发公司,新疆 克拉玛依834000);2.西南石油大学,四川 成都610500;3.西南油气田分公司川东气矿地质研究所,重庆 大石坝)
  • 收稿日期:2005-02-21 修回日期:1900-01-01 出版日期:2006-04-20 发布日期:2006-04-20
  • 通讯作者: 霍进

WELL TEST METHOD IN HEAVY OIL THERMAL RE-COVERY WITH CONSIDERATION OF GRAVITY OVERRIDE

HUO jin 1,2 JIA Yong-1u1 YU Jia 1 et al.

  

  1. (Heavy Oil Production Co, PetroChina Xinjiang Oil Field Branch Company , Kalamay 834000 , China )
  • Received:2005-02-21 Revised:1900-01-01 Online:2006-04-20 Published:2006-04-20
  • Contact: HUO jin

摘要: 针对蒸汽驱中的重力超覆现象,提出采用楔状复合油藏模型来模拟倾料蒸汽前缘_建立考虑热损失的数学模型,通过拉普拉斯变换,得到两区复合油藏井底压力在拉氏空间的解。经过Stehfest反演得到在实空间的解,并作出样板曲线,研究内外区流度比、倾料角度、热损失对样板曲线形状的影响‘

关键词: 重力超覆, 复合油藏, 试井分析, 拉氏变化, 数值反演

Abstract: Aimed at Gravity Override in a steam-injection processes,a well test analysis model of wedge-shaped compound reservoir is set up to simulate to slant steam front. 1'he mathematical mod-e1 considering heat loss is given and solved by Iaplace transfor-mation, then stehfest algorithm is used to obtain dismentionless wellbore pressure. The influence of the parameter on the dis-
mentionless wellbore pressure is discussed, such as slant angle,heat loss, and mobility ratio.

Key words: Gravity Override, compound reservoir, wellt-est analysis, Laplace transformation, stehfest algorithm

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