Abstract: With the deepening development of oil fields,the original design of a mobile offshore oil production platform can no longer meet the needs of oil,gas and water treatment. In order to achieve stable and increased production in the oil field,it is urgent to expand and renovate the platform. By analyzing the existing processes of the platform,multiple schemes are proposed and tested on site. The renovation scheme of Adaptive Mini-swirl Flotation Deoil （AMFD） + Combined Fiber Coalescence （CFC） + Efficient Media Filtration （EMF） was selected. After implementation,the expected production effect was achieved,providing reference for the expansion and renovation of other platforms.

Key words: mobile oil production platform, oil, gas and water treatment, expansion and renovation