西南石油大学学报(自然科学版) ›› 2009, Vol. 31 ›› Issue (4): 91-94.DOI: 10.3863/j.issn.1674-5086.2009.04.019

• 石油与天然气工程 • 上一篇    下一篇

致密低渗气藏水锁影响因素研究

唐海 吕渐江 吕栋梁 吴小庆 彭得兵   

  1. 西南石油大学石油工程学院,四川成都610500
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-08-20 发布日期:2009-08-20

STUDY ON INFLUENCING FACTORS OF WATER BLOCKING EFFECT ON TIGHT GAS RESERVOIR

TANG Hai LV Jian-jiang LV Dong-liang WU Xiao-qing PENG De-bing   

  1. School of Petroleum Engineering,SouthWest Petroleum University,Chengdu Sichuan 610500,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-08-20 Published:2009-08-20

摘要: 针对致密低渗气藏中严重影响勘探开发效果的水锁损害,分析了影响水锁效应的因素,利用致密低渗气藏天然岩芯,从储层平均孔喉半径及渗透率、生产压差、粘土矿物种类及含量、气水相渗曲线形态等方面,开展了系统的水锁实验研究,发现储层渗透率、粘土矿物种类及含量、气水相渗曲线形态是影响水锁效应的内在因素,生产压差是影响水锁效应的外在因素。认清了影响水锁效应的因素,为深化致密气藏水锁机理与渗流机理的认识和更加有效勘探开发致密低渗气藏具有指导意义。

关键词: 致密低渗气藏, 水锁损害, 储层渗透率, 生产压差, 粘土矿物, 相渗曲线

Abstract: Water blocking generally exits in tight gas reservoir,which impacts production severely,water blocking experiment is carried out by using real rock core to study influencing factors,which includes average pore throat radius,drawdown pressure,the sort and content of clay mineral and relative permeability curve conformation.The conclusions show that reservoir permeability and the sort and content of clay mineral are the most important factors impacting exploration.
Key words:tight gas reservoir;water blocking damage;reservoir

Key words: tight gas reservoir, water blocking damage, reservoir permeability, drawdown pressure, clay mineral, phase permeability curve

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