Seven Atlantic 01

Westerschelde 02 March 2012

 

Name

SEVEN ATLANTIC

Type

Diving support vessel - ROV

IMO-number

9419125

Call sign

2CBP2

Flag

Isle of Man Government - United Kingdom

Port of registry

Douglas

GT

17.496 t

DWT

11.885 t

NT

5.248 t

Length

144,79 m overall

Breadth

26,00 m moulded

Draught

7,00 m

Depth

12,00 m to maindeck

Speed

Full transit speed: 15,5 knots

Normal transit speed: 13,6 knots

Economical speed: 12,0 knots

Built

2010

Launch date

26.07.2008

Date of completion

29.01.2010

Builder

IHC Merwede Scheepswerf
Hardinxveld Giessendam
The Netherlands

Yard number

713

Hull material

Steel

Main engines / Generators propulsion

6x 3.360 kW (Diesel Electric)

3x 2.950 kW stern azimuth thrusters

2x 2.400 kW retractable bow azimuth thrusters

1x 2.200 kW bow tunnel thruster

total thruster power 15.850 kW

Cargo deck

Deck Area (main deck): 1.200 m²

Deck Strength: 10 t/m²

ROV Systems

The vessel is fitted with two permanently installed moonpool launching eyeball ROV heave compensated systems rated to 1,200 metres. The vessel can be fitted with an additional workclass and observation class ROV on deck. The survey suite will include a current profiler and heading reference system

Diving System

The 24-person saturation diving system includes four 3-man twin lock living chambers, two 6-man twin lock decompression chambers and two horizontal transfer under pressure chambers, (chambers are 2,40 m internal diameter) 54.000 m³ of gas storage and up to six split levels of saturation storage. The system is designed for compliance with Norwegian NORSOK

requirements, and features much improved living conditions compared to previous systems. Two Hyperbaric Life Boats are provided (one port and one starboard). The bells have 7,0 m³ internal capacity and are launched through two athwart-ships moonpools, positioned near the minimum motion point of the vessel. There are two fully integrated air diving systems, including chambers, one port and one starboard.

A comprehensive system of mechanical handling aids is fitted to support saturation and air diving operations, including port and starboard T bars, A-frames, hose reels, tugger winches and umbilical management hoop booms (20,00 m reach from ship side)

Heckle

 

Helideck of aluminium construction suitable for regular

operations of S61 and S92 helicopters and equipped with a fixed foam fire fighting system in accordance with CAP 437

Tank capacities

Marine gas oil: 2.289,73 m³

Fresh water: 1.051,59 m³

Ballast water: 4.736,67 m³

Heeling tanks: (55%) 663,80 m³

Stabilising tanks (operational): 600 m³

Technical fw/ waterballast: 135 m³

Low sulphur diesel oil: 135 m³

Lifting equipment

Main deck heave compensated crane - SWL 120,0 t at 16,00 m

Whip line - SWL 24,0 t at 32,00 m

Two provision cranes - SWL 2,50 t at 12,00m

Auxiliary deck crane I & II - SWL 10,0 t at 14,00m

Life saving appliances

 

Four davit launched lifeboats 75 persons each

Twelve life rafts 25 persons each

One life raft 10 person

Two hyperbaric lifeboats 18 persons each

Accommodation

150 persons

Captain class cabins: 6

Officer: 5

Single cabins: 9

Double cabins: 65

All cabins with own private facilities

One 2-berth sick bay

Communications Systems

 

The vessel is fitted with Inmarsat Fleet 77 and KU Band

systems. The KU Band system has the option to be converted to C Band as operational requirements demand.

Extensively equipped operations and client office suites; IT network and facilities / video conferencing

Manager

Subsea 7 International Contracting
Westhill

United Kingdom

Operator

Subsea 7

Owner

Subsea 7
200 Hammersmith Road

London W6 7DL
United Kingdom

Latest data adjustment

11 March 2014