China's CNOOC Ltd is considering deploying a Sevan-type floating production, storage and offloading vessel for the redevelopment of its Liuhua 11-1 and Liuhua 1-4 field complex in the South China Sea's Pearl River Mouth basin.

Sources told Upstream that CNOOC has decided to favour a circular FPSO rather than a ship-shaped vessel to further develop the twin Liuhua fields.

They added that CNOOC and Sevan Marine - now owned by Singapore’s Sembcorp Marine - had earlier completed a conceptual study on the feasibility to deploy a circular floater to develop oilfields in the South China Sea.