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FPSO MODEC Venture MV11 Internal Disconnectable Turret

 
 
FPSO MODEC Venture MV11 Internal Disconnectable Turret Image
 
 

Scope of Work

SOFEC designed and constructed a disconnectable internal turret mooring system to moor a 150,000 dwt MODEC-converted FPSO in 156m water depth.

FPSO MODEC Venture MV11 Internal Disconnectable Turret Location Image
 
 

SOFEC designed and constructed a disconnectable internal turret mooring system to moor a 150,000 dwt MODEC-converted FPSO in 156m water depth.

FPSO MODEC Venture MV11 Internal Disconnectable Turret Location Image
 
 

General Description

Client Name:Santos Ltd.
Contract Award:October 2003
Installation Date:January 2005
First Oil:March 2005
Vessel Size:150,000 dwt
Storage Capacity:930,000 bbls
Water Depth:156m (512ft)
Supply / Fabrication:Turret - Singapore
Vessel - Singapore
 
 

Design Environmental Criteria

 
 

(100-year storm)

Significant Wave Height:5.1m (16.7ft)
Wind Velocity:25m/s (48.6 knots)
Surface Current:1.3m/s (2.5 knots)
 
 

Mooring System

Turrets

 
 

Spider Buoy
6-leg Symmetric, chain, wire rope and drag anchor

Disconnectable Internal

 
 

Fluid Swivel Assembly

Production:3 x 8-in. toroid (ANSI Class 1500)
Water Injection:1 x 8-in. toroid (ANSI Class 1500)
Well Service:2 x 2-in. toroid (ANSI Class 1500)
Chemical/Utility:XX paths x 5,500 psi
Electrical Slip Ring Assembly:
Medium Voltage:62 paths x 6.6 KV
Low Voltage/Signal:172 paths
 
 

Riser System

 
 

2 x 12-in. Flexible pipe – Production (Provision for 1 x 12-in. future)
1 x 12-in. Flexible pipe – Water Injection
2 x 2-in. Flexible pipe – Well Service
4 x Medium voltage power umbilical – Subsea Power
2 x Integrated service umbilical – Subsea Control (Provision for 1x future ISU)

 
 

Comments

 
 

When a cyclone approaches, the FPSO can easily temporarily evacuate from the field by the unique SOFEC internal disconnectable turret mooring system.

 
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