西南石油大学学报(自然科学版) ›› 2006, Vol. 28 ›› Issue (3): 5-7.DOI: 10.3863/j.issn.1000-2634.2006.03.002

• 石油工程计算技术 • 上一篇    下一篇

利用边界元方法研究非封闭边界均质油气藏井底压力动态特征

刘启国 1 徐坤吉 1 祁玉莲 2 李强 3   

  1. (1.“油气藏地质及开发工程”国家重点实验室·西南石油大学,四川成都610500;2.玉门油田分公司技术服务中心;3.吐哈油田录井工程公司)
  • 收稿日期:2006-02-16 修回日期:1900-01-01 出版日期:2006-06-20 发布日期:2006-06-20
  • 通讯作者: 刘启国

BOUNDARY ELEMENT METll0D RESEARCH ON OTTOMHOLE PRESSURE BEHAVOR IN NON-CLOSED BOUNDARY OIL AND GAS RESERVOIRS

LIU Qi-guo1 XUn kun -ji1 Ql Yu -lian 2 et al

  

  1. (Southwest Petroleum University,Chendu si-chuhuan 610500,China)
  • Received:2006-02-16 Revised:1900-01-01 Online:2006-06-20 Published:2006-06-20
  • Contact: LIUQi-guo

摘要: 在实际油藏中非封闭边界普遍存在。对于恒压边界和封闭边界的渗流问题,可以采用常规方法进行求解;但时于非封闭边界的渗流问题,采用常规方法不能得到有效的解决。论述了应用边界元方法(Boimd娜ElemenoMethod)研究非封闭边界均匀介质油藏中的渗流力学问题,建立并求解考虑井筒储存效应和表皮效应影响的任意形状非封闭边界试井解释数学模型,对渗流微分方程进行拉普拉斯变换,用边界元方法进行处理得到拉普拉斯空间解,再采用Stehfest数值反演算法求得实空间解,并对井底压力动态的曲线特征进行了分析。

关键词: 均质油藏, 任意形状油气藏, 边界元, 非封闭边界, 试井解释

Abstract: Non-closed boundary are servoirs are very widesPread in reality.As for the percolation Problem of constant Pressure boundary and closed boundary,routine method can resolve it.But as for the Percolation Problem Of non-closed boundary,routine method did not work effeetively. the Boundary Element Methcd to study the non-closed boundary mathematical model Of well test inginterpretatlon was Presented in the PaPer,which was LaPlace
transform to the Percolation differential equation,the solution in the Laplace space with the Boundaly Element Methoel and then the SOlution in the real sPace with the Stehfest Numerical Method was worked out,which can be used to analyze the hole-bottom Pressure behavior.

Key words: homogeneous reservoir, arbitrary shape reser-voir, boundary element method, non-closed boundary, well testing interPretation

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