Research of Drainage Gas Recovery Technology in Gas Wells

• 作者: Chao Duan Di Xu Lili Liu Liqun Xiu Shuren Yang
• 来源期刊: 流体动力学(英文)
• 学科: 医学
• 关键词: Drainage Gas RECOVERY Process Optimization CRITICAL Liquid-Carrying Flow RATE TECHNICAL Index
• 年，卷（期）: 2014,（2）
• 页码范围: 154-162
• 页数: 9页
• 分类号: R73

摘要

Drainage gas recovery technology is the main method of gas recovery process in gas field, which has domestically and internationally been the main gas recovery processing measure in later stage of gas field production. In this context, produced water or condensate liquid will not be carried out of pit shaft by natural gas with the gradual drop of gas reservoir pressure and natural gas flow velocity, thus they will remain in pit shaft and form the so-called “gas well gathered liquid”. This fluid severely affects natural gas output and leads to the decline of oil field economic benefits, thus drainage gas recovery measure must be taken to increase gas well or even gas field output. It becomes the primary problem to be solved to select the best drainage gas recovery measure which can maximize gas field benefits and optimize gas well safety.