HYDRODYNAMIC PERFORMANCE OF MULTIPOINT MOORED FDPSO IN THE SOUTH CHINA SEA

摘要

Based on the three dimensional potential flow theory and non-linear time domain coupling analysis method, thernpaper studies the effect on FDPSO catenary mooring line tension subjected to wind, wave and current in the SouthrnChina Sea. With the calculation of wind, wave, and current load applied to the vessel, the FDPSO maximumrnhydrodynamic response and mooring line tension is calculated. The analysis results indicate that the positioningrnperformance of the FDPSO during drilling in operation sea state and production in survival sea state fulfills designrnrequirements and ensures that the vessel could survive under the most hazardous conditions providing reference tornresearch and engineering design of a multi-point moored FDPSO in the South China Sea. Due to the importance ofrnobtaining an accurate vessel motion response and environmental force, the numerical simulation method isrnintroduced with linearity assumption and experience coefficients defined in the rules. The offshore engineeringrndesign software SESAM is used to accomplish the modeling, calculation, and comparison as well as analysis.