海上气举完井管柱优化设计

Optimum Design of Offshore Gas-lift Completion String

气举采油作为目前一种非常重要的人工举升采油方式在海上油田得到了广泛应用.对气举采油作业的特点和分类进行了分析,对气举管柱的结构、管柱类别和井下工具进行了研究和对比.通过研究和分析,总结出了一套依据井口压力、完井液密度、地面注气压力、气体密度等实际井况参数对气举管柱结构进行优化设计的方法.

Gas lift is widely used in offshore oilfields as a very important artificial lift method at present.The characteristics and classification of gas lift oil production are analyzed.The structure,types and downhole tools of gas lift string are studied and compared.Through research and analysis,a set of optimum design methods of gas lift string structure are summarized based on actual well condition parameters such as wellhead pressure,completion fluid density,surface injection pressure,gas density and so on.