Client: CNOOC
Date of Started:5/1/2019
Location: South China Sea; water depth of 144.3 m
Topside Weight: Max. 20750 MT
SOW: Based on the provided structural drawings, design basis, soil report, and metocean data, OTL performed following analyses:
In-place static and dynamic analysis
In-place spectra fatigue analysis
In-place seismic analysis
Jacket loadout analysis
Jacket transportation analysis (both marine and structural)
Jacket launch analysis (both marine and structural)
Jacket flotation/upending analysis
Jacket on-bottom stability analysis, mudmat capacity, and jacket stress check
Floatover structural analysis
Pile free-standing and pile drivability analysis
FE analysis for skirt pile sleeve connection
Member stress check under slamming loads (in-place and launch)
Member ViV check (both in-service and pre-service conditions)
Launch cradle design check and local ring reinforced joints strength check
Hydrostatic ring design check.