Abstract: This paper gives a brief introduction of engineering background of HYSY112 FPSO for CFD11-1/2 oilfield in Bohai Bay. From oilfield management's point of view, a summary is given on EHS, team work, engineering cost/quality/schedule control and operations team participation among the multi-cultural team. Successful project management founded a base for the first phase of CFD11-1/2 oilfield development, supplied a reference and experience for future FPSOs, and became a model for joint-venture offshore oilfield development.