Seven Oceans Rigid Reeled Pipelay Vessel

Owner Subsea 7Yard number 709

Main DimensionsLength over all 157.31 mLength between perpendiculars 138.32 mBreadth (moulded) 28.40 mDepth main deck (moulded) 12.50 mDesign draught (moulded) 7.50 mScantling draught (moulded) 8.00 m

DeadweightDeadweight at design draught 10,930 tDeadweight at scantling draught 12,430 t

SpeedTrial speed at design draught 15.0 kn

DP SystemClass: DP2 (prepared for DP3)

Pipe Lay EquipmentLay ramp equipped with 300 t tensioner, a 450 t and a 80 t A&R winch and 16 t knuckle boom crane

Maximum opera ng depth: 3,000 m

Main pipe reel: hub diameter 18 m, extreme diameter 28 m, width between fl anges 10 m, capacity 3,500 t Piggy back reel: hub diameter 4.40 m, extreme diameter 7.80 m, width between fl anges 5 m

ROV SystemTwo fully integrated cursor launched work ROV’s housed in a hangar

Li ing gearOne off shore crane (heave compensated)Safe working load 400 mtradius 16.50 mopera ng depth 3,000 m

One off shore crane (heave compensated)Safe working load 40 mtradius 16.50 m

One off shore craneSafe working load 12 mtradius 25.00 m

Two provision cranesSafe working load 5 mtradius 14.00 m

WorkdeckArea 650 m2. Load capacity 10 t/m2 (locally 15 t/m2)

HelideckHelideck of aluminium construc on on top of accommoda onsuitable for regular opera ons of S61 helicopters and equipped with a fi xed foam fi re fi gh ng system

ThrustersThree azimuth thrusters (a )variable speed drive 2,950 kW each

One tunnel thruster (fwd)variable speed drive 2,200 kW

Two retractable azimuth thrusters (fwd)variable speed drive 2,400 kW each

Seven Oceans Rigid Reeled Pipelay Vessel

Stabilising systemTwo passive stabilising tanks

Machinery6.6 kV 60 Hz medium voltage for generators, switchboards, main cabling and 690 V 60 Hz low voltage for frequency drives and propulsion / thruster motors

Six main generator setsDiesel engineMaximum output 3,360 kWEngine speed 720 rpm

AlternatorsMaximum output 3,600 kVA Speed 720 rpmVoltage 6,600 VoltFrequency 60 Hz

One emergency/harbour generator setDiesel engineMaximum output 1,540 kWEngine speed 1,800 rpm

AlternatorMaximum output 1,875 kVASpeed 1,800 rpmVoltage 440 VoltFrequency 60 Hz

Complement (all cabins with own private facili es)Captain class 3 cabins 3 personsOffi cer 5 cabins 5 personsCrew (single) 12 cabins 12 personsCrew (double) 48 cabins 96 personsCrew (four) 1 cabins 4 personsTotal complement 69 cabins 120 persons

IHC Merwede Off shore & MarineRivierdijk 586, 3371 ED Hardinxveld-GiessendamPo Box 5, 3370 AA Hardinxveld-GiessendamThe Netherlands

Phone +31 184 677 300Fax +31 184 677 301E-mail shipyard.mws@ihcmerwede.comWebsite www.merwede.com