新疆石油地质

新疆石油地质 ›› 2009, Vol. 30 ›› Issue (2): 232-234+278.

• 油藏工程 • 上一篇    下一篇

凝析气井井筒动态预测方法

何志雄1a, 孙雷1b, 王雷2, 林涛2, 刘志斌1a   

  1. 1.西南石油大学,a 理学院,b 石油工程学院,成都 610500;
    2.中国石化 西北油田分公司 乌鲁木齐 830000
  • 收稿日期:2008-06-16 修回日期:2008-08-05 出版日期:2009-04-01 发布日期:2020-08-25
  • 作者简介:何志雄（1965-）,男,四川资中人,副教授,石油地质, （E-mail）hezhixiongzm@yahoo.com.cn.
  • 基金资助:
    国家自然科学基金项目,异常高压气井（藏）开发动态模拟及最优控制研究（50874094）资助

Method for Prediction of Borehole Performance in Condensate Gas Well

HE Zhi-xiong1a, SUN Lei1b, WANG Lei2, LIN Tao2, LIU Zhi-bin1a   

  1. 1. Southwest Petroleum University, a. Institute of Technology; b. Institute of Petroleum Engineering, Chengdu, Sichuan 610500, China;
    2. Northwest Oilfield Company, Sinopec, Urumqi, Xinjiang 830000, China
  • Received:2008-06-16 Revised:2008-08-05 Online:2009-04-01 Published:2020-08-25

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摘要： 凝析气井在生产过程中,随着产气量、产油量、产水量的变化,井筒中不同位置的温度、压力、气液组成、气液摩尔分数和积液情况也发生变化。在考虑井筒温度变化的基础上,分流态综合利用垂直管流公式和井筒携液计算公式,结合流体相平衡热力学闪蒸计算,运用状态方程模拟,提出了凝析气井井筒动态预测方法。实例计算表明,该方法可预测凝析气井不同生产时期井筒内不同位置的温度、压力、气液组成、气液摩尔分数和积液情况,能更好地指导凝析气井的生产。

关键词: 凝析气井, 井筒, 动态, 垂直流动, 相态

Abstract: When producing, the temperature, pressure, compositions and molar fractions of gas and liquid as well as liquid loading in different places of a condensate gas borehole are changing with changes of oil, gas and water production rates. The vertical conduit flow and borehole carrying fluid computational formulae by state of flow, considering borehole temperature change, and combining with thermodynamic flashing calculation for fluid phase equilibrium, this paper proposes the method for prediction of borehole performance in condensate gas well. The case calculated results show that this method as a guide for production of such a well can be used to predict these temperature, pressure, compositions and molar fractions of gas and liquid as well as liquid loading situation in different places of a condensate gas borehole in different production stages.

Key words: condensate gas well, borehole, wellbore, performance, vertical flow, phase state

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