Offshore SSCV

The SSCV is a large, state-of-the-art, multi-functional, dynamically positioned construction SEMI-SUBMERSIBLE CRANE VESSEL and accommodation unit.

It has a sizeable hotel capacity up to the highest standards. The vessel has a fast open deck space, which are specially reinforced and will allow positioning of heavy constructions.

GENERAL

Classification: ABS

Notation: ✠A1 Column- Stabilized Unit, Crane Service. Construction & Maintenance Service, UWILD Accommodation Service AMS ACCU DPS3 Circle M.

IMO: 9650963.

PRINCIPAL DIMENSIONS

Overall

LOA: 137,75 m.

Beam: 81,00 m.

Height (BL to main deck): 39,00 m.

Main Pontoon

Length: 137,75 m.

Width: 19,50 m.

Depth: 12,00 m.

Corner Radius Deck and Bottem (MLD): 2,25 m.

Outrigger Pontoon

Length: 113,00 m.

Width: 13,50 m.

Depth: 12,00 m.

Corner Radius Deck and Bottem: 2,25 m.

Column – Main Pontoon (2 off)

Height: 18,00 m.

Wildth: 19,50 m.

Length (EXTREME): 20,25 m.

Corner Radius: 2,25 m.

Deck Box

Length: 81,00 m.

Width: 81,00 m.

Depth: 9,00 m.

Draft

Max Operation Draft: 26,40 m.

Operation Draft: 20,00 m.

Survival Draft: 17,00 m.

Transit Draft: 11,28 m.

Light Ship Weight (Maximum): 33,600 MT.

Displacement (approx at 20 m draft: 55,700 MT.

Transit Speed (at draft of 11,28 m): 8 Knots.

DESIGN ENVIRONMENT

Survival condition: Hs=12 m.

Hotel Operation condition: Hs=6,0 m.

Transit condition: Hs=6,0 m.

Sea water temperature: 0°C to 32°C

Outside air temperature: -10°C to 45°C

Structure design temperature: -10°C

Fatigue life: 20 years

OPERATION AREA

West Africa, Gulf of Mexico, UK North Sea.

VARIABLE DECK LOADS

Hotel Variable: 4,444 MT @20 m Operational Draft.

Crane Variable: 7,070 MT @26,4 m Operational Draft.

Survival Variable: 4,429 MT @17 m Survival Draft.

Transit Variable: 3,570 MT @11,5 m Transit Draft.

BALLAST SYSTEM

Ballast pump: 4x 380 m³/hr & 4x 200 m³/hr.

Air compressor: 4x 8390 Nm³/hr, Max Pressure 2,6 bar.

FIRE FIGHTING & SAFETY

Fire Fighting: 2x Centrifugal type, Pressure min 14 bar.

Life Boats: 12x 104 persons fire-proff lifeboats complete with davits.

Rescue Boat: 1x motorized Rescue Boat (9 man) with launching davit.

Life Rafts: 25x 25 persons life rafts.

HELIDECK

1x Helideck suitable for Westland EH101 helicopter.

ACCOMMODATION

Total beds on board the vessel is then crew/owner/class 100 + 32 + 2 = 134, clients 484, Total 618 beds.

Mess facilities installed and fitted for 320 persons.

MAIN AND AUXILIARY MACHINERY

Main Generator Set: 8x 3860 kW, 6600 V, 60 Hz, 3 ph.

Emergency Generator: 1x 1825 kW, 440 V, 60 Hz, 3 ph.

Truster: 6x 3,800 kW fully Azimuth Thruster.

Fuel Oil Transfer Pump: 4x Screw pump, 75 m³/hr, 8,0 bar.

Fuel Oil Purifiers: 4x Capacity 5,000 L/h.

Start Air Compressor: 4x 50 m³/hr @ 30 bar.

Service Compressor: 2x screw type 1500 m³/hr @ 8 bar.

Sewage Treatment Unit: 2x 310 persons.

Fork Lift: 1x Linde E30S, 3 tons.

MAIN CRANE

Main Deck Crane: 2x 1,800 Tons @ 27 m, Slewing Crane.

Tandem lifting: Lifting 3,600 T.

Deepwater Operation: The crane is prepared for future upgrade with a deep water auxiliary hoist system, 600 T @ 29 m.

DECK MACHINERY

Deck Crane: 2x Cranes 40 tons @ 20 m.

Gangway: 1x Telescopic hydraulic gangway with base of approx 36,5 m. (6 m) length.

ANCHOR SYSTEM

Four (4) 25 T anchors x Flipper Delta 25 T anchor, One (1) Flipper Delta 25 T spare anchor.

Four (4) mooring winches design (outfitted 2 set with delivery), electrically-powered, single drum mooring winches Break holding force (1st layer) 4000 KN, Pull 1st layer) 1800 KN at 10m/min, complete with 2.000 m steel rope of 3” diameter.

TOWING, MOORING & LASHING

8 set x double bollards and Panama Chocks

4x SMIT Towing Brackets with SWL 2x 250 MT each associated with Panama Chocks

8 sets x 10 tons air winches.

Two (2) x double drum Barge Mooring Constant tension winches with fairleads.

SSCV INFORMATOIN

Asymmetric design for port and starboard pontoons.

This vessel is non-traditional semi submersible crane vessel wit hits own unique features:

Asymmetric main structure design:

starboard main pontoon and column and port smaller outrigger pontoon and hydrodynamic principles and can raise towing speed, optimize light weight and reduce the time to adjust ballast water under lifting condition.

No transverse bracing design:

this can eliminate the fatigue hot spot at bracing-column or bracing-pontoon connection area; optimize light weight; reduce the towing resistance and so raise the towing speed and DP capacity, convenient for offshore ships to travel in areas between two pontoons. This is the innovational newest concept design of 7th generation.

AIR COMPRESSED BALLAST SYSTEM

Air compressed ballast system with following features:

To cooperate the lifting operation, ballast capacity is:

ballast water adjustment should be completed within 40 minutes with 3,600 tons lifting operation.

Introduce GL Noble Denton lifting analysis and optimized tank ballast analysis to ensure the lifting operation is safety and reliability.

Introduce advanced remote controle system from CVT company to ensure the system operated smoothly under dufferent kinds of ballast conditions with complicated remote valve system.

DP CAPACITY ANALYSIS

Hydrodynamics analysis is based on WAMIT software and post-processed by in-house program to get the DP capacity.

The analysis shows that this vessel has satisfied DP capacity and meet class requirements of DPS3.

Mooring analysis is based on HARP software and calculation results demonstrates that current 4 points mooring system can perform station-keeping function well in shallow water.

2x 1800 TONS DEEPWATER CRANE

The 2x 1800 tons deep water cranes are custom-made for SSCV of Shipyard, which is designed and constructed by Huisman company, The Netherlands:

Totally electricity driven.

System back up for crane supply system.

Main hook and secondary hook use the same winch.

Main hoist with 3000 m wire rope capacity, 500 m traveling for 1800 tons lifting; 1500 m traveling for 600 tons lifting; 3000 m traveling for 300 tons lifting.

DPS3 SYSTEM

This vessel is equipped with DPS3 and following equipments and systems to cooperate lifting equipments to realize the steady offshore lifting operation:

All-direction propellers with high performance.

Introduce automatic control and dynamic postioning system designed by CVT company to strongly ensure the system function.

HIGH REQUIREMENTS ON VIBRATION AND NOISE CONTROL

 

Vessel is used for not only offshore lifting but also accommodation:

Max 618 holding capacity.

High requirements on noise control for living quarters:

UKHSE standards for 350 person living areas and IMO resolution A.468 for other areas.

ISO 6954 - 2000 and ISO 7547 - 2002 for vibration.

 

For more information you send an e-mail to [email protected] or call +31 (0)612-890610.

 

This information is given and received in good trust. Kriesels Shipbroker BV and/or its employees are absolutely in no manner responsible for this information, nor for the impact of the state of maintenance and/or equipment, in which the ship finds herself at any moment. Every potential customer we recommend to letting inspect the ship by a qualified surveyor.