Abstract: This paper introduces the feasibility study and implementation results of technologies adopted by an operating company in Bohai Oilfield for the recovery of associated natural gas in offshore oilfields,including the application of associated gas compressor treatment process technology,gas regulation,storage and recovery of associated natural gas for power generation,innovation and implementation of large reflux and small reflux technologies in natural gas treatment process to recover the vented gas,adoption of reverse transmission technology for offshore gas pipeline and crude oil pipeline to recover the vented gas, application of the jet technology and the frequency conversion wet low-pressure screw compressor technology to recover the low-pressure vented gas of the secondary production separator,and innovative use of low-pressure compressors to recover the vented gas of water source wells and inclined plate oil remover. Taking advantage of the new development pattern of the combined gas supply network in the southwest of Bohai Sea and the electric power network of oil field group,an operating company has taken multiple measures in a coordinated manner,laying a solid foundation for Tianjin Branch to achieve the carbon peak and carbon neutrality goals.

Key words: vented gas, recycling, emission reduction, technology, innovation