This paper is purposed to present the experiment procedures to study the hydrodynamic characteristic of new generation Round-Shape FPSO. This is because response of FPSO in wave is required to modeling correctly to ensure the safety of FPSO in dynamic condition. In this experiment, the FPSO model is constructed based on scale ratio 1:110 and it is installed in wave dynamic tank with model size mooring lines. Besides that, this paper also discussed the preparation procedures for model test which included the mooring design process and model setup before experiment. From the model experiment data, it is observed that the round FPSO which stationary by mooring lines experienced two types of horizontal motion there are wave frequency motion and slow varying motion due to drift and mooring effect. While the vertical motion of this FPSO is only experience wave frequency motion.
The oil and gas exploration and production activities in deep sea are now on a steady increase globally. Therefore, it is necessary to design a cost effective and safe system for these operations. The main objective of this research is to design a Floating Production, Storage and Offloading (FPSO) vessel suitable for operation even in extreme meteorological and oceanographic conditions. In order to achieve this, the effects of extreme environmental loads on the vessel have been evaluated in terms of the maximum responses in surge, heave and pitch modes of motion. Furthermore, an interactive programme, the Principal Dimensions Programme (PD Prog) has been designed to accurately evaluate and optimise the principal particulars based on the required storage capacity and response analyses. Results show that the vessel length, which is directly proportional to the cube root of the cubic number (the overall volume), is a measure of the critical wavelength. Close to the critical wavelength in extreme metocean condition, the vessel could be subjected to several billions Newton meter of Wave Bending Moment. This design technique, in addition to the numerous useful data obtained, helps to ensure good performance during operation and so reduces downtime, and increases uptime, safety and operability of the vessel even under extreme metocean conditions.
It currently no information is available for the comparison of the dynamic behaviour of the internal turret moored for twin hull FPSO system at different loading conditions with various turret locations under the action of wave. Hence, the present study investigated characteristics for a typical turret moored FPSO system by catenary anchor leg mooring (CALM) which subjected to sea waves, in order to get insight knowledge on its dynamic behaviour due to various turret locations with different loading conditions. The comparison of the dynamics behaviour to the FPSO and it mooring lines are important when choosing potential development and optimal options. This research will analyses and highlight the optimal turret location to the new potential concepts of twin hull FPSO. It also will highlight areas where effort is best focussed to mitigate the marine risks.
