closed gas lift string 闭式气举管柱
half-open gas lift string 半开式气举管柱
double-barreller gas lift string 双管气举管柱
annular gas lift string 环形空间出油气举管柱
half-closed gas lift string 半闭式气举管柱
The gas lift valve on the conventional gas lift pipe string is easy to fail and cannot be replaced in the hole.
常用的气举采油管柱存在的问题是气举阀易失效，不能投捞进行更换，严重影响管柱的效率和使用周期。
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。
The study completes the contrastive analysis of Long32 continuous gas lift and single string pig lift unloading process.
本文将隆32井采用连续气举卸载与单管球塞气举卸载过程进行了对比分析。
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