西南石油大学学报(自然科学版) ›› 2004, Vol. 26 ›› Issue (1): 32-34.DOI: 10.3863/j.issn.1000-2634.2004.01.010

• 石油与天然气工程 • 上一篇    下一篇

低渗透气藏气体渗流速度修正式

王彬 梅海燕 张茂林 李闽 孙良田
  

  1. (西南石油学院石油工程学院,四川 南充 637001)
  • 收稿日期:2003-03-19 修回日期:1900-01-01 出版日期:2004-02-20 发布日期:2004-02-20
  • 通讯作者: 王彬

IMPROVED GAS FLOW EQUATION IN LOW PERME ABILITY RESERVOIRS

WANG Bin MEI Hai-yan ZHANG Mao-lin et al
  

  1. (Southwest Petroleum Institute, Nanchong Sichuan 637001, China)
  • Received:2003-03-19 Revised:1900-01-01 Online:2004-02-20 Published:2004-02-20
  • Contact: WANG Bin

摘要: 渗流的基本规律达西定律,是100多年前法国水利工程师达西提出的,他是通过液体实验得到的。对于气体渗流来讲,存在着滑脱效应,特别是在低渗、低速和低压时,滑脱效应更为显著。在考虑了气体渗流的特点后,结合分子扩散理论得到了考虑滑脱效应的气体渗流速度方程,为进一步开展低渗透气藏渗流理论研究,油藏工程研究和动态分析建立了基础。

关键词: 气体, 渗流, 滑脱, 低渗透, 扩散

Abstract: Darcy’s law, the principle law through porous media, put forward one hundred years ago, was derived by experiments with liquid. For gas flow in porous media, a slippage effect ex-ists, especially when pressure is low, or velocity is low or per-meability is low. Gas flow equation in porous media with a slip-page effect was presented, combining with molecular diffusion
theory. It is a theoretical foundation for further study on per-meable theory, reservoir engineering, and performance analysis in low gas permeability reservoirs.

Key words: gas, flow through porous media, slippage, low permeability, diffusion

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