air-lift method 气举法
two-step gas lift method 两步气举法
straddle lift method 跨运方法
gas lift method 气举方式
The Lift Method 电梯法
jack lift method 顶举法
artificial lift method 人工举升技术
vertical swing lift method 竖转提升施工
Some problems such as high cost of tripping the tubing string, limited injection pressure and insufficient gas supply will be faced when gas lift is used as an artificial lift method for deep Wells.
深井用伴生气经压缩机增压后进行气举采油，将碰到起下油管作业费用大、地面注气压力有限、气源将可能不足以满足各井需求等问题。
Pig lift method with U-shape double strings is easy to be limited by size of casing and very complicated in construction operation process. Thus, the large restrictions exist in the field application.
球塞气举方式采用U型双管柱易受套管尺寸限制，且施工作业较为复杂，其应用受到较大限制。
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