Downhole gas injection tubular column

The utility model discloses an underground gas injection pipe column which comprises an oil pipe body, and a gas inlet channel is formed in the oil pipe body and communicated with the interior of the oil pipe body. Two valves are arranged in the gas inlet channel in a spaced mode, and the interior of the gas channel is divided into two channels through the two valves. Gas pressure can remain in a channel formed between the two valves, when the valves are opened and closed, gas can be slowly transited, the slow transition can reduce the influence of inertial impact of fluid on pressure fluctuation, the pressure fluctuation caused by sudden opening and closing of the valves is reduced, and the safety of the valve is improved. The two channels are matched with the two valves, so that the pressure of the inlet and the outlet can be well balanced, and damage to other parts caused by pressure fluctuation is avoided. 本实用新型公开了一种井下注气管柱，包括油管本体，所述油管本体上开设有进气通道，所述进气通道与油管本体的内部连通；所述进气通道内间隔设置有两个阀门，所述两个阀门将气体通道内部分隔成两个通道。使两个阀门之