Siem Offshore Contractors - Topsector Energie

Siem Offshore ContractorsYour Partner for Submarine Cable Installation Works

“Our Ships. Our People. Our Vision. Your preferred Solution”

http://www.siemoffshorecontractors.com/en/home

Strictly Private and Confidential © Siem Offshore Contractors GmbH

Siem Offshore Contractors

o Established in October 2003 by industry experts working together for 20 years

o Since April 2018 an independent subsidiary of Subsea 7 Group

o Dedicated, experienced and professional organization with a total of approx. 110

highly experienced and motivated permanent employees with an emphasis on

project engineering and management

o Organisation certified in line with ISO 9001 & ISO 14001 as well as OHSAS 18001

(ISO 45001) standards

Headquarters in Leer,

East Friesia, Germany



Siem Offshore Contractors Locations

o Siem Offshore Contractors is

headquartered in Leer, Germany,

located close to the North Sea and

the border with the Netherlands.

o In the UK SOC has an office in

Aberdeen, Scotland to service the

customers in the UK and Ireland.

o SOC also operates a combined

marine base and warehouse in

Eemshaven (the Netherlands) to

provide operational support and

service to our vessels during

projects.



Our Marine Base - Eemshaven

• Water depth >7.5m,

direct access to quay,

no stevedorage.

• Office facilities, frame

agreement for hotel

facilities.

• Cables can be stored

in tents, indoor and

outdoor storage area.

• Cable storage

equipment on site:– 2 x static tanks

– Motorised turntable

– Cable engines (2x 5Te

+ bow)

– Cable rollers

– Chute assemblies



Siem Offshore Contractors - Success in Numbers


http://www.eon.com/etc/designs/eon/static/images/eon-logo-print.gif


Offshore Wind Developments in Northern Europe

SCROBY SANDS

AMRUMBANK WEST



1. The Challenge – the Contract

Based on



2. The Challenge – the Weather




Wave H

eig

ht

(m)

Time

Largest Weather Window @ Hs 1.5m

Largest Weather Window @ Hs 2.5m

Nearly 40% longer weather window in this example!




Using 1.5m Hs as limit




3. The Challenge – Accessing the structures

Monopile Foundation Electrical Substation



4. The Challenge – Laying & Pulling in the cables…



5. The Challenge – …and Trenching the cables!



FOU3FOU1 FOU2

Route Survey, Pull-in,

Laying & Trenching

Operations =

Foundation Access &

Equipment Transfer

Operations =

1

1 2

2

3

3

4

4

5

5

6

6

11

2

2 33 44 5

5

6 6

SIMOPS SEQUENCE

6. The Challenge – Simultaneous Activities



• AHC gangway system

• 3D compensated crane

• Offshore support units

• On-board workshops

Vessel Specifications:

Built: April 2014Design: SX 163DP Class: 2LOA: 74.00mBreadth: 17.00mDraught: 6.40mDwt: 2,835tAccommodation: 60Cargo Deck Area: 200m²

The ISV Siem Moxie is a DP class 2 designed installation support vessel, which hasbeen designed for installation and commissioning support as well as regular repair andmaintenance duties and is equipped with:

ISV Siem Moxie

Over 14,000 connections and 52,000

personnel transferred since launch!



ISV Siem Moxie - Layout



Staying connected in adverse weather – 24hrs per day, 7 days per week

ISV Siem Moxie – Adverse Weather



• 2x turntables

• 2x work-class ROVs

• 1x trenching ROV

• Cable handling equipment

Vessel Specifications:

Built: Q2 2016

Design: CLV 01

DP Class: 2

LOA: 95.30 m

Breadth: 21.50 m

Draught (max): 7.10 m

Cable Payload: 4,250 t

Accommodation: 60

The CLV Siem Aimery is a DP class 2 combined cable lay and trenching support vessel,

which has been designed in line with the challenging requirements for inner array grid

and export cable installation in offshore renewable and oil and gas industries and is

equipped with:

CLV Siem Aimery



• Two cable

carousels/turntables

(4,250t capacity)

• Two Work-Class

ROVs with Launch &

Recovery System

over Port & Stern

• 360 degree

panoramic bridge

• High standard, low noise

level accommodation for

60 people

• A-frame for

quadrant

deployment

CLV Siem Aimery - Overview



Sheltered cable laying deck, with

cable highways, workshops




One trenching ROV in

hangar with LARS and

gate to launch on

starboard side.

Up to Hs 3.5m operations




Video - Inner Array Grid Cable Installation

Find the video on YouTube: https://www.youtube.com/watch?v=bDqLDZG8r-U


https://www.youtube.com/watch?v=bDqLDZG8r-U


Thank you for listening…

For enquiries please contact:

Lars Muck, Business Area Manager – SOC GmbH

[email protected]

Questions?


mailto:[email protected]

Siem Offshore Contractors - Topsector Energie

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