论文详情

利用非稳定渗流方程研究射孔参数对产能的影响

石油钻采工艺

2000年 22卷第4期

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Title

STUDY OF INFLUENCE OF PERFORATION PARAMETERS ON PRODUCTIVITY BY UNSTEADY SEE PAGE FLOW EQUATION

作者

许广明孔祥言卢德唐

Authors

Xu Guangming Kong Xiangyan Lu Detang

单位

石家庄经济学院资源环境与工程系, 河北石家庄 050031 中国科技大学力学系, 安徽合肥 230026

摘要

根据射孔完井的渗流特点,利用有限元方法建立了三维单相非稳定渗流的数值模型,有限元方程组的求解是在曙光1000大型并行机上利用区域分解法进行的。利用非稳定渗流方程进行油田射孔产能的研究,克服了稳定渗流方程的局限性和外边界的不确定性。通过各种射孔方案的计算,给出了射孔深度、射孔半径、射孔密度、射孔相位、污染程度和厚度、压实程度和厚度等射孔参数对油井产能影响的曲线,这些结果对油田制定射孔方案具有一定的指导意义。

Abstract

The perforation productivity has been studied by unsteady seepage flow equation. Using the unsteady seepage flow equation can effectively avoid the limitation of steady seepage flow equation and solve the variability of outside boundary of seepage area. The equation has been solved by finite element method in Dawn 1000. This paper has given the influence of perforation parameters on productivity of oil well. The results are very important to the plan of perforation.

关键词：

(非稳定); 渗流模型; 射孔; 生产能力; 边界;

Keywords:

unsteady; percolation model; perforation; productivity; boundary;

基金项目

DOI

10.3969/j.issn.1000-7393.2000.04.013