新疆石油地质 ›› 2008, Vol. 29 ›› Issue (5): 641-643.

• 油藏工程 • 上一篇    下一篇

产水气藏废弃压力的确定方法

余贝贝1, 唐海1, 李东林2, 吕栋梁1, 吕渐江1, 黄小亮1   

  1. 1.西南石油大学,成都610500;
    2.大港油田集团公司油气合作开发公司,天津300280
  • 收稿日期:2007-12-25 发布日期:2020-10-19
  • 作者简介:余贝贝(1984-),女,湖北仙桃人,在读硕士研究生,油气田勘探,(Tel)13880742866 (E-mail)ldybb@yahoo.com.cn.

The Method for Determination of Abandonment Pressure in Water-Bearing Gas Pool

YU Bei-bei1, TANG Hai1, LI Dong-lin2, LV Dong-liang1, LV Jian-jiang1, HUANG Xiao-liang1   

  1. 1. Southwest Petroleum University, Chengdu, Sichuan 610500, China;
    2. Dagang Group Oil/Gas Cooperative Development Corporation, Tianjin 300280, China
  • Received:2007-12-25 Published:2020-10-19

摘要: 产水气藏的废弃压力是确定采收率的关键参数,它的大小直接影响到气藏采收率的高低,因此准确计算产水气藏废弃压力显得非常重要。考虑气井开采过程中产能方程系数的变化,推导出计算产水气井在不同伤害程度和伤害半径下,任意时刻的二项式产能方程,在井口生产条件一定的情况下,以最小井底流压下的气井最小携液速度为约束条件,确定出了产水气藏的废弃压力。

关键词: 气藏, 二项式, 系数, 废弃压力

Abstract: The abandonment pressure of water-bearing gas pool is the key parameter to ascertain the recovery factor, directly influencing the recovery size. This paper takes account of the change of parameters that have big impact on water-bearing gas well productivity equation and derives a binomial coefficient equation for it under different damage degrees and harm radius at any moment. Under a definite collar production working, such an abandonment pressure can be ascertained using minimum liquid-carrying velocity at minimal bottomhole flowing pressure as constraint condition.

Key words: gas pool, binomial, coefficient, abandonment pressure

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