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Coupled analysis of FPSO and CALM buoy offloading system in West Africa
conference contribution
posted on 2023-05-23, 09:07 authored by Keng, Y, L Sun, Kang, Z, Shuhong ChaiShuhong ChaiFPSO and CALM (Catenary Anchor Leg Mooring) buoy offloading systems are being extensively employed in water field of West Africa. In this paper we did some research on the response of FPSO and CALM offloading systems under special environment conditions inWest Africa. It is found that Swell dominate sea state has much larger effects on wave frequency motions of FPSO than responding results introduced by Wind Sea dominate sea state, and squall and current will introduce large horizontal motions of FPSO, such as surge and sway. As for CALM, swell and wind sea mainly affect its heave and roll motions, respectively. Due to its little wind area, CALM does not show great response to Squall which is the extreme environment condition for FPSO though. By comparing the results from OOL (Oil Offloading Line) dynamic analysis and quasi-static analysis, it could be that OOL dynamic effect has little influence on motions of FPSO. But it can bring large changes of responses of CALM because of its small water displacement which indicates coupled analysis of the whole system is necessary Besides, investigations on OOL fatigue have also been done, and the results show that CALM motion plays an important role on fatigue damage and life of OOL under different sea states.
History
Publication title
Proceedings of the 33rd International Conference on Ocean, Offshore and Arctic EngineeringVolume
8APagination
1-11Department/School
Australian Maritime CollegePublisher
American Society of Maritime EngineersPlace of publication
United StatesEvent title
33rd International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2014)Event Venue
San Francisco, CaliforniaDate of Event (Start Date)
2014-06-08Date of Event (End Date)
2014-06-13Rights statement
Copyright 2014 ASMERepository Status
- Restricted