The Ocean contains a wealth of oil and gas resources, and the exploration of offshore oil is of significance in the field of social and economic. The mode of FPSO oil-production is becoming one of the dominant forms in offshore oil and gas industries in recent years, which can save the laying of gas pipeline investment, and make the development of the oilfield away from the shore or under seriously conditions or small reserves have a commercial value.There are six FPSO working in Bohai Sea. Offshore oil and gas accounts for 8.5% of the Bohai Sea marine economy in composition of marine economy, and accounted for 19.4% of the Bohai emerging marine industry. Because of Bohai Sea environment is complex, vessels and operators involved are many, marine supervision can not be carried out Systematically and comprehensively, as well as multi-management and specification not unified, there is a great risk during transfer operations. Once the fire or other accidents occur, marine environment nearby may be polluted seriously, causing huge economic losses.With the scale of lifting vessel larger and larger, FPSO transfer operations more and more, the number of accident also more and more. It is necessary to do some research on the security technologies of FPSO transfer operations in the Bohai Sea.The paper firstly analyzes the characteristics of FPSO and the method of transfer operations commonly used in the Bohai Sea, and designated the security zone of transfer operations of FPSO. Analyzes marine supervision towards transfer operations of FPSO in Bohai Sea, and finds out the shortcomings.Then, the paper identifies the risk factors of transfer operations through studying cases and consulting expert for advice, and evaluates them. Based on the theory of safety chains, the paper builds dynamic and static safety chain of FPSO transfer operations.Finally, the paper proposes condition restrictions based on the experience of Ship maneuverability and the theory of navigation theory, and optimizes the programs of FPSO transfer operations, and comes up with risk response and other measures. Research on the security Technologies of FPSO transfer operations in the Bohai Sea, can regulate the FPSO transfer operations procedures, reduce dispute about transfer operations, and makes up the marine supervision deficiencies in FPSO transfer operations, and reduce FPSO transfer operations risks. To some extent, the paper can enrich the knowledge of transfer operations risk and the theory of transfer operation, and provides ideas for the marine supervision and against risk. |