摘要
气井随着开采时间的增加和开发深度的加深，大多数都会出现产液现象，气井产液严重威胁着气井稳定生产．使产气量急剧下降，严重的气井则被水淹停产，本文系统介绍了天然气气并产液的机理，分析了产液对天然气正常生产的影响，介绍了各种出水井的类型和目前国内外对气井产液这一现象的研究现状，归纳了一系列预测天然气气井产液的方法，综述了各种排水采气的传统及最新的工艺方法。
The liquid production mechanism of natural gas wells was systematically introduced in this article. The influence of liquid production on the normal production of natural gas was analyzed. The authors introduced a variety of types of water-producing wells, and the current situation of producing liquid of gas wells at home and abroad. We generalize a series of methods to forecast the liquid production in the natural gas wells, and summarize the various traditional methods and up to date technologies of gas recovery with water drainage.
关键词
气井
排水采气
气井积液
临界流速
临界流量
gas well
gas recovery with water drainage
gas well liquids
critical flow velocity
critical flow
