Ynr 709 Seven Oceans My Project

1. Seven Oceans Rigid Reeled Pipelay Vessel
Owner Subsea 7 Pipe Lay Equipment
Yard number 709 Lay ramp equipped with 300 t tensioner, a 450 t and
a 80 t A&R winch and 16 t knuckle boom crane
Main Dimensions
Length over all 157.31 m Maximum opera ng depth: 3,000 m
Length between perpendiculars 138.32 m
Breadth (moulded) 28.40 m Main pipe reel: hub diameter 18 m, extreme
Depth main deck (moulded) 12.50 m diameter 28 m, width between flanges 10 m,
Design draught (moulded) 7.50 m capacity 3,500 t
Scantling draught (moulded) 8.00 m
Piggy back reel: hub diameter 4.40 m, extreme
Deadweight diameter 7.80 m, width between flanges 5 m
Deadweight at design draught 10,930 t
Deadweight at scantling draught 12,430 t ROV System
Two fully integrated cursor launched work ROV’s
Speed housed in a hangar
Trial speed at design draught 15.0 kn
DP System
Class: DP2 (prepared for DP3)

2. Seven Oceans Rigid Reeled Pipelay Vessel
Li ing gear Stabilising system
One offshore crane (heave compensated) Two passive stabilising tanks
Safe working load 400 mt
radius 16.50 m Machinery
opera ng depth 3,000 m 6.6 kV 60 Hz medium voltage for generators, switchboards,
main cabling and 690 V 60 Hz low voltage for frequency drives
One offshore crane (heave compensated) and propulsion / thruster motors
Safe working load 40 mt
radius 16.50 m Six main generator sets
Diesel engine
One offshore crane Maximum output 3,360 kW
Safe working load 12 mt Engine speed 720 rpm
radius 25.00 m
Alternators
Two provision cranes Maximum output 3,600 kVA
Safe working load 5 mt Speed 720 rpm
radius 14.00 m Voltage 6,600 Volt
Frequency 60 Hz
Workdeck
Area 650 m2. Load capacity 10 t/m2 (locally 15 t/m2) One emergency/harbour generator set
Diesel engine
Helideck Maximum output 1,540 kW
Helideck of aluminium construc on on top of accommoda on Engine speed 1,800 rpm
suitable for regular opera ons of S61 helicopters and equipped
with a fixed foam fire figh ng system Alternator
Maximum output 1,875 kVA
Thrusters Speed 1,800 rpm
Three azimuth thrusters (a ) Voltage 440 Volt
variable speed drive 2,950 kW each Frequency 60 Hz
One tunnel thruster (fwd) Complement (all cabins with own private facili es)
variable speed drive 2,200 kW Captain class 3 cabins 3 persons
Officer 5 cabins 5 persons
Two retractable azimuth thrusters (fwd) Crew (single) 12 cabins 12 persons
variable speed drive 2,400 kW each Crew (double) 48 cabins 96 persons
Crew (four) 1 cabins 4 persons
Total complement 69 cabins 120 persons
IHC Merwede Offshore & Marine
Rivierdijk 586, 3371 ED Hardinxveld-Giessendam
Po Box 5, 3370 AA Hardinxveld-Giessendam
The Netherlands
Phone +31 184 677 300
Fax +31 184 677 301
E-mail shipyard.mws@ihcmerwede.com
Website www.merwede.com