Abstract: In actual production, the associated gas and cover gas of light hydrocarbon recovery system in water well of Bohai A platform directly enter the flare system to burn,resulting in large blowout,incomplete combustion of heavy components of gas,high blackness of flare,and resource waste and air pollution. In addition,with the commissioning of subsequent projects and the gradual production of development wells and adjustment wells in the later stages,there is still room for increase in gas production and venting volume. In the context of the company’s green and low-carbon development strategy,the recovery and utilization of vented gas has high economic value and environmental protection significance. Bohai A platform has achieved the recovery of vented natural gas through design experiments and on-site process transformation,providing transformation ideas and experience for energy conservation,emission reduction,and green development of offshore oilfields.

Key words: flare vent, degassing tank transformation, reprocessing, recovery and venting, reconstruction of condensate