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www.dcndiving.com
Offshore Diving
Creating Dry Space UW
Underwater Concreting
Shipping
Hyperbaric & Wet Welding
ROV & ROCM
Document Directives(click on the icons)
Inshore Diving
Profile Assets
Hyperbaric & Wet Centre
Bridges & Tunneling
Engineering
Caissons
Hydro Power Dams
Decommissioning and Salvage
Survey & IRM
Company Presentation
Offshore Diving
Updated: 11-08-2020
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General Profile
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Mission
DCN is an international operating contractor that provides innovative and effective subsea and hyperbaric services. These services include Engineering, Diving, ROV and Hyperbaric Testing.
Vision
To become an international leader in providing hyperbaric services onshore with our hyperbaric test facility and offshore with innovative hyperbaric projects.
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Core Values
DCN believes that by treating our clients, people and suppliers fairly and with respect we will earn their trust and build sustainable success together.
DCN constantly strives to improve the efficiency of our business by investing in the development of our people and through innovation in technology, operations and processes.
DCN is predictable and reliable in its performance. We always strive for excellence in everything we do in order to achieve superior business results.
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business structure
Vriens Stuifzand Groep B.V.Van Konijnenburgweg 151
4612PL, Bergen op Zoom, The NetherlandsContact: A.J.H.M. Stuifzand ([email protected])
Registration: 13040313
DCN ShippingVan Konijnenburgweg 151
4612PL, Bergen op Zoom, The NetherlandsContact: R. Weitzel ([email protected])
Regisration Number: 13025858
DCN Diving Pacifice PTE LtdLoyang Offshore Supply Base
Loyang Crescent, Singapore 508988Block 103, #04-01
Contact: [email protected]: 201715523N
DCN Diving B.V. Van Konijnenburgweg 151
4612PL, Bergen op Zoom, The NetherlandsContact: [email protected]
Registration: 13019455
VSG - MaterieelVan Konijnenburgweg 151
4612PL, Bergen op Zoom, The Netherlands Contact: A.J.H.M. Stuifzand ([email protected])
Registration: 20051537
DCN Diving Sdn BhdLevel 26, Menara Maxis
Kuala Lumpur City Centre50088 Kuala Lumpur. Malaysia
Registration: 201901038145
DCN Diving B.V. - Abu DhabiAbu Dhabi - U.A.E. 103AR16
Industrial City of Abu Dhabi II (ICAD II)Musaffah - Abu Dhabi
Contact: [email protected]: CN-2449149
DCN Diving Ltd UK14 Rutland Square
Midlothian, EH1 2BD Edinburgh, Great BritainContact: [email protected]
Registration: SC461316
DCN UnterwasserbautenWestpromenade 11
D 52525 Heinsberg, GermanyContact: [email protected]
Registration: HRB64662B
DCN Diving BVBAHofstraat 9
9150 Kruibeke, BelgiumContact: [email protected]
Registration: 0846206026
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company history
1990’s 2000’s 2010’s
First saturation diving work on projects in Newfoundland (core-drilling from within a habitat) and Ekofisk - Germany (soil investigation). Eventually the saturation system was installed in a mineshaft to serve as a training facility.
1980’s 2020
Today – oldest privately-owned diving company in NL, subsea solutions for oil and gas, renewables, civil and dredging industry
Activities shifted to civil works with underwater concreting at various underground parking's and tunnels on and between the German Potsdamerplatz and Lehrter Bahnhof.
Regained focus on world-wide offshore and hyperbaric operations. Development of the Hyperbaric Testing Centre and successful completion of milestone hyperbaric projects on subsea structures and pipelines.
Upgrade of the Bergen op Zoom Yard, built of the second pipeline repair habitat and implementation of a company wide ERP system. Focusing on IWS.
1970’s
Built of the first habitat for work on the ‘Oosterscheldekering’ (part of the Delta Works). During this project, the Dutch Diving Tables were developed as the Sterk-Vriens tables. The NDC (National Diving Centre) was also founded by W. Vriens Snr. during this period.
Vriens Diving Company founded by W. Vriens Snr.
1957
Further expansion on civil works in the Netherlands supporting many tunnelling and underwater concreting projects.
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DCN Diving today
Worldwide with a focus on North
Sea, WAF, UAE and SE Asia.
Offices in the Netherlands
(headquarters), UK, Germany,
Abu Dhabi and Kuala Lumpur.
Bases in the Netherlands, Abu
Dhabi and Singapore.
ISO 9001 – 2015,
ISO 14001 – 2015,
ISO 45001:2018.
SCC / VCA**
FPAL (Verified)
IMCA
In-water Survey Certification
Strong dedication on ZERO harm to
people and environment.
LTIFR- 0 (IMCA 0,42)
TRIR – 0,72 (IMCA 1,67)
FAR – 0 (IMCA 0,93)
Env. 5L – 0 (IMCA N/A)
90 FTE’s including 32 supervisor /
divers.
Flexible group of ~130 core
freelance personnel.
Focus on inhouse development,
knowledge sharing / training /
lessons learned.
DCN Group
2017 – 33mln Euro
2018 – 35mln Euro
2019 – 35mln Euro*
Operations Accreditation HSE People Revenue
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OPERATORS
CONTRACTOR
Offshore
Inshore/Civils
retaining customers
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certification
QHSE Diving & ROV (including In-Water Survey) Other Memberships
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Our Assets
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Bergen op Zoom premisesItem Description
Dimensions 19.500 sqm
Year of Upgrade 2018
Overhead Crane 10T
Welding Facility 1 welding workshop
Office Space 3 Dedicated office areas:Main office: 8 roomsClient office: 5 roomsWorkshop: 2 roomsTD: 4 roos
Storage & Workshop 1.800 sqm Enclosed Storage Area and Workshop400 sqm Open Storage Area (with roof) 500 sqm ROV Workshop600 sqm Diving Workshop
Special Features 19 Living ApartmentsHelicopter landing areaHyperbaric centreWet Test centre
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Item Description
Dimensions 1,200 sqm
Year of Upgrade 2019
Facilities 1 x Diving Technical Workshop & Storage
1 x Operational Office
DCN UAE premises
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Singapore & Malaysia premisesItem Description
Dimensions 2.500 sqm
Year of Upgrade 2019
Facilities 1 x Diving Technical Workshop & Storage. Storage for SaturationDiving system andHyperbaric EmergencyRepair Spread
2 x Operational Office (1 in Singapore and 1 in Kuala Lumpur)
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Item Description
Type Test Centre for Hyperbaric Welding Procedure and Welder Qualifications and Hyperbaric testing of components
Year of Build 2014
Max. Persons 8 Man
Class Lloyds Certified
Maximum pressure 20 bar (200 meter)
Test Chamber Testing / Welding Chamber with 1.80 Ø meter door for weld – test pieces
Evacuation Hyperbaric Rescue Craft on Tracks
Configuration 2 x 4 man living chamber1 x TUP transfer hub1 x Welding / Test Facility Chamber1 x Hyperbaric Rescue ChamberSaturation and Test Chamber control Rooms
hyperbaric test centre
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Item Description
Type Wet test centre for the provision of Wet Welding Qualifications and testing of components
Year of Build 2019
Depth water tank 5m
Diving system Dedicated Dive Control Unit including Decompression chamber
Crane Overhead crane
wet test centre
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Item Description
Type Hydra Unique Mobile Sat System, 300 msw rated
Year of Build 2008
Max. Sat Divers 9 Man
Class ABS
Total Bell Volume 5.0m3
Bell Type Singe Bell
Evacuation Hyperbaric Rescue Craft 10 man
Configuration 1 x twin lock living chamber, 1 x singe lock HRC including LARS 1 x 3-man bell, 1 x Bell-LARS Double Ram A-Frame, 1 x Dive and Sat Control 20ft Container, 2 x Equipment Support Container
sat 02
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sat 03Item Description
Type Mobile Sat/TUP System configured by DCN in 2017, 200MSW rated
Year of Build 2009
Max. Sat Divers 8 Man
Class Lloyds Certified
Total Bell Volume 4.9m3
Bell Type Singe Bell
Evacuation Hyperbaric Rescue Craft 15 man
Configuration 1 x twin lock living chamber, 1 x singe lock HRC including LARS 1 x 3-man bell, 1 x Bell-LARS Double Ram A-Frame, 1 x Dive and Sat Control 20ft Container, 2 x Equipment Support Container
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Item Description
Type Unique Hydra Classed Air Dive System
Year of Build 2018
Control Panel 1800 WSN 3 Diver Control Panel
Class ABS
Container Type 20ft DNV 2.7-1 Container
Subsea Inspection Management System
Digital Edge
Internal Twin Lock DDCMedical LockChamber Control PanelAir ConditionerFire Deluge System
Configuration 1 x Dive Control Container including decompression chamber, 1 x 20ft Life Support Container, 1 x Workshop Container
surface supplied classed system
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Item Description
Type DCN Assembled Lloyds Certified Diving System
Year of Build 2018
Control Panel 1800 WSN 3 Diver Control Panel
Certified Lloyds Register
Container Type 20ft DNV 2.7-1 Container
Subsea Inspection Management System
Digital Edge and VisualSoft
Internal Twin Lock DDCMedical LockChamber Control PanelAir ConditionerFire Deluge System
Configuration 1 x Dive Control Container including decompression chamber, 1 x 20ft Life Support Container, 1 x Workshop Container
IRM SSE system
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Item Description
Type Mixed Gas Wet Bell 50 MSW DCN Assembled Unit
Year of Build 2012
Control Panel 1500 WSN 3 Diver Control Panel
Certified Lloyds Register
Container Type 20ft DNV 2.7-1 Container
Subsea Inspection Management System Digital Edge
Internal Twin Lock DDCMedical LockChamber Control PanelAir ConditionerFire Deluge System
Configuration 1 x Dive Control Container including decompression chamber, 1 x 20ft Life Support Container, 1 x Workshop Container
mixed gas wet bell 50msw air and mixed gas SSE 80msw
Item Description
Type Air and Mixed Gas Dive 80 MSW DCN Assembled Unit
Year of Build 2010
Control Panel 3 Diver Control Panel
Certified Lloyds Register
Container Type 20ft DNV 2.7-1 Container
Subsea Inspection Management System Digital Edge
Internal Twin Lock 1800 mm DDCMedical LockChamber Control PanelAir ConditionerFire Deluge System
Configuration 1 x Dive Control Container including decompression chamber, 1 x 20ft Life Support Container, 1 x Workshop Container
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Item Description
Type Mobile Air Diving System
Year of Build 2020
Number of Divers 2 (Main Diver, StandbyDiver)
Standard Build according to IMCA D040
Comms and Recording NovasubSCC2DRVLDSPDVR
Specifics Separated Control Room from Diving area2x KM Morgan Diving Hats1x KM Bandmask2x 100 meters umbilical length Compressor including air cylindersFull Medical Kit Mad-A and First AidHP Waterjet, Underwater Cutting and Welding systems in place
DCN Diving Van Edition 2020
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Item Description
Type Observation Semi Workclass ROV
Year of Build 2010
TMS 200 meter 5731 Soft-Tether
Certified Lloyds Register
Container Type 20ft DNV 2.7-1 Container
Subsea Inspection Management System
Digital Edge, Visual Soft
Dimensions and Performance Depth rating: 1000 mswLength: 1300 mmHeight: 784 mmWidth: 900 mmLaunchweight: 270 kgForward speed: 3.8 knotsThrustforward: 170 kgfThrustlateral: 120 kgfThrustvertical: 110 kgfPayload: 60 kg
Configuration 1 x 20Ft. ROV Control Container, 1 x LARS, 1 x 20ft Control Workshop Container
SAAB Cougar Compact XT
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Item Description
Type Deepwater Workclass ROV Designed and Manufactured by SAAB Seaeye
Year of Build 2013
TMS S-8 with 200 Meter tether
Certified Lloyds Register
Container Type 20ft DNV 2.7-1 Container
Subsea Inspection Management System
Digital Edge, Visual Soft
Dimensions and Performance
Depth rating: 2000/3000 mswLength: 2150 mmHeight: 1174 mmWidth: 1160 mmLaunchweight: <1200 kgForward speed: > 3.5 knotsThrustforward: 493 kgfThrustlateral: 377 kgfThrustvertical: 255 kgfPayload: 200 kg
Configuration 1 x 20Ft. ROV Control Container, 1 x LARS, 1 x 20ft Control Workshop Container
SAAB SeaEye Leopard
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Item Description
Type Remotely Operated Cleaning Machine
Year of Build 2008
Cleaning System 2 x hydraulic side arms & brushes1 x hydraulic top arm & brush
Certified Lloyds Register
Container Type 20ft DNV 2.7-1 Control Container
Water Sludge Pump 1 x 65 kW centrifugal pump
Dimensions and Depth Length: 6200mmWidth: 1200mmHeight: 2125mmWeight: 9,500kgDepth rating: 25 msw
Configuration 1 x 20Ft. ROCM Control Container, 1 x 20ft Workshop Container, 1 x Umbilical Reel
remotely operated cleaning machine
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Item Description
Type LARS Operated Cleaning Machine
Year of Build 2017
Cleaning System 4 x hydraulic operated rotating brushes
Certified Lloyds Register
LARS TMA-Argani Hydraulic Winches, SWL 1800KG
Lights 2 x 250W 230V individually dimmed
Controls Constant tensionConstant Speed (pay in-out)
Configuration 1 x 10 ft Workshop Container, 1 x Launch and Recovery System
cleaning machine
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Item Description
Type Deepwater Airlift Dredger
Year of Build 2016
Mooring System 4 point mooring 4 x 15 ton winches
Dredging depth 100 meter
Compressor 150 kw
Flow compressor 11,1 m3/min @ 7 bar
Dimensions 75.60 x 17.06 x 6.85
Configuration Modular pontoon units;Control cabinAirlift;Jet water pump;Airlift winch;Compressor;Vibrating strainer screen (rock/ debris separator)Conveyor belt and booster pump (dredge slump), completed by railing;Floating discharge pipeline, and dump barge;Floating electrical power support cable.
Willem v dredger
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Item Description
Type Phantom FRC Scuba Replacement Unit
Year of Build 2011
Engines 2 x Yamaha 422Sti
Power 245Hp (183KW) @ 3800 RPM
Max Speed 38 Knots
Total Weight 5795Kg
Dimensions 10.20m L x 3.30m B
Scuba Replacement 1 x Portable divers supply panel and radio.3 x 'T' Cylinders H.P. air.2 x 200 ft. umbilicals1 x VHF radio with sufficient range to meet 4.3 ii)2 x KM 17 or 271 x KMB 182 x sets divers personal equipment.1 x first aid kit1 x set air dive / in water decompression tables• 1 x radar reflector2 x gallons fresh water2 x outboard engines2 x fuel tanks - 25 litre capacitySecuring chains for engines and tanks.200 ft. ½" polypropylene rope.
Item Description
Type Osprey Falcon Rigid Inflatable, Fast Rescue BoatIncluding Offshore Lifting Cradle
Year of Build 2009
Engines Steyr Marine 144VTI
Sterndrive Brove One Mercruiser
Max Speed 50 km/h cruising speed
Total Weight 1200 kg
Dimensions 6.60m L x 2.60 m B
Scuba Replacement 1 x Portable divers supply panel and radio.3 x 'T' Cylinders H.P. air.2 x 200 ft. umbilicals1 x VHF radio with sufficient range to meet 4.3 ii)2 x KM 17 or 271 x KMB 182 x sets divers personal equipment.1 x first aid kit1 x set air dive / in water decompression tables1 x radar reflector2 x gallons fresh water2 x outboard engines2 x fuel tanks - 25 litre capacitySecuring chains for engines and tanks.200 ft. ½" polypropylene rope.
RHIBS
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habitat 02 elephant feetItem Description
Type Habitat with elephant feet
Year of Build 2018
Emergency Procedure Safe Haven Bell on top of Habitat
Certified DNV Classed, IMCA
Container Type 20ft DNV 2.7-1 Container
Maximum Depth 300m
Chamber Dimensions and Weight
6m x 3m
82.6mT Max. Gross Weight
Configuration 1 x Habitat, 1 x Umbilical Reel, 1 x 20ft Habitat Control Room, 1 x 20ft Welding Container (with Welding and Pre-Heat Machines), 1 x 20ft Workshop Container
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habitat 01 suction pilesItem Description
Type Habitat with Adjustable Legs for Suction Pile solution
Year of Build 2015
Emergency Procedure Safe Haven Bell on top of Habitat
Certified Lloyds Certified, IMCA Compliant
Container Type 20ft DNV 2.7-1 Container
Maximum Depth 300m
Chamber Dimensions and Weight
6m x 3m
55TmT Max. Gross Weight
Configuration 1 x Habitat, 1 x Umbilical Reel, 1 x 20ft Habitat Control Room, 1 x 20ft Welding Container (with Welding and Pre-Heat Machines), 1 x 20ft Workshop Container
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shallow water habitatItem Description
Type Habitat with riser. Diver can lock in-out through trunk, no diving required to enter habitat.
Year of Build 2001
Emergency Procedure Return back to riser or evacuate through Dog-House.
Certified Lloyds Certified, IMCA Compliant
Container Type 20ft DNV 2.7-1 Container
Maximum Depth 20m
Chamber Dimensions and Weight
6m x 3m
45TmT Max. Gross Weight
Configuration 1 x Habitat, 1 x Umbilical Reel, 1 x 20ft Habitat Control Room, 1 x 20ft Welding Container (with Welding and Pre-Heat Machines), 1 x 20ft Workshop Containe
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Offshore Diving
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offshore diving achievements 2010 -2020
Between 2010 and 2020 69
successful offshore projects have
been completed.
Over 51421 dives, using Saturation
air or nitrox diving methods
Over 2 mln man-working hours
within Offshore Diving
On following pages a few of the selected projects, for more details visit https://www.dcndiving.com/projects-map/
www.dcndiving.com
calm buoy inspection
PROJECT
SPM inspection and Maintenance Program
LOCATION
Fujairah
PROJECT DURATION
January 2012 - June 2012
SCOPE OF WORK
Pre-commissioning monthly and routine subsea inspections and repairs to 3 SPMs offshore Fujairah until such a time the project is completed and goes on line.The Abu Dhabi Crude Oil Pipeline (ADCOP) Project involves a pipeline originating in Habshan in Abu Dhabi and terminating in Fujairah, where 3 offshore loading facilities (SPM) have been constructed.
www.dcndiving.com
SBM Inspection and Maintenance
PROJECT
SBM Inspection
LOCATION
Lebanon
PROJECT DURATION
June 2012 - August 2012
SCOPE OF WORK
Subsea structural surveys and inspection of the offshore offload facility at Zouk & Jiyeh Terminals offshore Lebanon, including General Visual Inspection, Cathodic Protection and Ultrasonic Thickness measurements.
www.dcndiving.com
SBM umbilical installation
PROJECT
SBM Umbilical Installation
LOCATION
Lebanon
PROJECT DURATION
2012
SCOPE OF WORK
Supply of engineering, vessel and mixed gas diving services for the removal of old, and installation of new, umbilical on the SPM 1 located offshore Fujairah, UAE. The vessel on charter was Siem Carrier and the client was Van Oord. The SPM is one of 3 that form part of the Abu Dhabi Crude Oil Pipeline Project (ADCOP).
www.dcndiving.com
subsea pipeline & power cable installation
PROJECT
Subsea Pipeline & PowercableConnection
LOCATION
Nigeria
PROJECT DURATION
2013
SCOPE OF WORK
Connection of pipelines and power cables at 70m of water depth of the coast of Nigeria, Africa
SYSTEMDcn mobile sat system (9-man, 3-man bell, HRC) mobilized on the Lewek Toucan.
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I-tube, clamp installation and flexlay
PROJECT
Samarang Oil Field
LOCATION
Malaysia
PROJECT DURATION
January 2017 – May 2017
SCOPE OF WORK
Installation of riser clamps, riser guards and flexible pipelines with the use of DCN Sat 02 system, which is installed on the Normand Baltic. The project was executed for TechnipFMC and operator Petronas.
SYSTEMDcn mobile sat system (9-man, 3-man bell, HRC) mobilized on the DSV Normand Baltic
Click for more info
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windfarm platform re-stabilization
PROJECT
Heerema - HFG Helwin 2 Shim Repair
LOCATION
Germany
PROJECT DURATION
October 2018 – November 2018
SCOPE OF WORK
ROV, Survey operations, dredging around piles and installation of wedges to prevent movement of (Helwin 2) platform on piles. Platform operated by TenneTPrior to the installation a full mock-up of the wedge installation was organized and conducted.
SYSTEMDcn mobile sat system (9-man, 3-man bell, HRC) mobilized on the DSV Normand Baltic
www.dcndiving.com
pipeline installation dive support
PROJECT
Allseas – Sur de Texas Pipeline Installation
LOCATION
MexicoPROJECT DURATION
June 2018 – June 2019SCOPE OF WORK
The Sur de Texas – Tuxpan (SdTT) gas pipeline project is located along the East coast of Mexico, from Tuxpan going upstream (North) till Brownsville (USA) and has landfalls in Tuxpan (42”), Altamira (2 x 42”) and Brownsville (42”). The water depth and working depth varies from 5m till 29m. DCN was contracted by Allseas for the all the dive support and Survey for the project.
SYSTEMClassed Air Diving Spread mobilized on DP1 Multicat
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pipeline installation dive support
PROJECT
Allseas – Turkstream Pipeline Installation
LOCATION
Russia - Turkey
PROJECT DURATION
December 2018 – April 2019
SCOPE OF WORK
Allseas was awarded the contract to design and install the approximately 940 km long Line 1 and Line 4 from the onshore entry pit of the micro tunnel in Russia to the landfall in Turkey. DCN was contracted to provide all dive support which included Above Water-Tie-Ins, Inspection, Subsea Cleaning, other dive support. Including provision of DSV.
SYSTEMAir Spread Mobilized on DP3 Pipelay Vessel Lorelay and Normand Poseidon
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oil field development
PROJECT
BISON, IGUANA AND GAJAH PUTERI (BIGP) DEVELOPMENT PROJECT
LOCATION
IndonesiaPROJECT DURATION
August 2019 – December 2019
SCOPE OF WORK
The work included but was not limited to:• Umbilicals Installation• AGX ans SSIV Installation• Flexible Risers, Clamps
Installation• Spools installation• PLEMs Installation• MWA Removal & Installation• Flexible Pipeline Installation
SYSTEMMPV Everest with integrated 18 man Sat Twin-Bell System
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Inshore Diving
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inshore diving achievements 2010 -2020
Over 15112 projects and still
running, with various activities
such as underwater inspection,
quay wall repair, underwater
cutting/welding, underwater
concreting, underwater cleaning
and coating
Over 5451421 dives, using air or
nitrox diving methods, NDC diving
tables and using purpose-built
state of the art diving equipment
(refer to asset section).
Over 3 mln man-working hours
within Inshore Diving
On following pages a few of the selected projects, for more details visit https://www.dcndiving.com/projects-map/
www.dcndiving.com
expansion of Terneuzen sluice
PROJECT
Sassevaart – Expansion Terneuzen Sluice
LOCATION
Netherlands
PROJECT DURATION
2019 – 2020
SCOPE OF WORK
DCN is contracted by SassevaartV.O.F. for dive support for the expansion of the Sassevaart sluice. Dive support includes but is not limited to:• Underwater inspection• Removal of sheet piles• Installation of Anodes• General Inspection• Underwater concreting
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Oosterscheldekering
PROJECT
Oosterscheldekering
LOCATION
Netherlands
PROJECT DURATION
2014 – 2020
SCOPE OF WORK
DCN is the main (and only) service provider for underwater inspection and maintenance of the famous storm surge barrier ‘Oosterscheldekering’. Work activities include:• Cathodic protection
measurement and change-out• General visual inspections• Concrete repairs• Assistance with any salvage
activities near the area
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Vessel Inspection & Maintenance
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achievements vessel IRM 2017 -2020
The Shipping entity was established
in 2017 and already 251 (and
counting) successfully have been
completed In-Water Surveys on
Vessels
DCN is certified for class sociéties
to conduct in-water surveys on
vessels. DCN is certified for
CLASSNK, RINA, LLOYDS, RUSSIAN
MARITIME REGISTER, BUREAU
VERITIAS, DNVGL, KOREAN
REGISTER, ABS AND TASNEEF
For more details visit https://www.dcndiving.com/shipping-uwild-vessel-maintenance-and-repair/
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UnderwaterConcreting
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achievements underwater concreting
In the BENELUX alone DCN Diving
has poured over 5mln m3
underwater concrete
A patented surfer system to
efficiently conduct underwater
concreting (refer to Asset section)
On following pages a few of the selected projects, for more details visit https://www.dcndiving.com/projects-map/
www.dcndiving.com
Potsdamer Platz
PROJECT
Development of PotsdammerPlatz
LOCATION
Potsdammer Platz, Germany
PROJECT DURATION
1989 – 1994
SCOPE OF WORK
Potsdamer Platz is an important public square and traffic intersection in the center of Berlin, Germany, lying about 1 km (1,100 yd) south of the Brandenburg Gate and the Reichstag (German Parliament Building), and close to the southeast corner of the Tiergarten park. Between 1989 and 1994 DCN provided a Dive team year-round of 200 personnel and conducted all the underwater concrete for the foundation of the entire Plotsdamer Platz.
www.dcndiving.com
re-development of boat lift Niederfinow
PROJECT
Upgrade Niederfinow
LOCATION
Germany Niederfinow
PROJECT DURATION
2006
SCOPE OF WORK
The Niederfinow Boat Lift is the oldest working boat lift in Germany. It lies on the Oder-Havel Canal near Niederfinow in Brandenburg. The lift overcomes a difference in elevation of 36 metres.
DCN was contracted to conduct underwater inspection and concrete for the foundation of the upgraded Niederfinow.
www.dcndiving.com
London Thames
PROJECT
London Thames
LOCATION
London Thames Project
PROJECT DURATION
2008
SCOPE OF WORK
Placing asphalt matrasses on harbour bottom
• Placing 28.000m2
• Joint filling between matrasses with underwater concrete
www.dcndiving.com
Vonk & Vlam Parking
PROJECT
Underground Parking Vonk & Vlam
LOCATION
Netherlands
PROJECT DURATION
2013
SCOPE OF WORK
DCN Diving was contracted by Heijmans for the under inspection and concreting of the establishment of the Vonk & Vlamparking garage in 's-Hertogenbosch. A total of 9.500m3 concrete was poured by DCN. Other works included sheet pile removal and, inspections, underwater welding and cutting.
www.dcndiving.com
Markthal
PROJECT
Markthal
LOCATION
Netherlands, Rotterdam
PROJECT DURATION
2013-2014
SCOPE OF WORK
DCN Diving in collaboration with Martens en Van Oord were contracted for the construction of the foundation of the Markthalincluding the underground parking garage.
www.dcndiving.com
soil improvement Port of Antwerp
PROJECT
Soil Improvement Port of Antwerp
LOCATION
Antwerp, Belgium
PROJECT DURATION
2014
SCOPE OF WORK
DCN Diving was contracted by the Port of Antwerp to conduct underwater inspection and concrete for the improvement of soil in the Port of Antwerp.
40.000m3 of underwater concrete was poured with the use of movable floating concreting tremie pipes (Concrete surfers)
www.dcndiving.com
establishment parking garage Amsterdam
PROJECT
Max Bögl - Boerenwetering
LOCATION
Amsterdam
PROJECT DURATION
2017-2018
SCOPE OF WORK
DCN Diving was contracted by Max Boegl to provide dive support for the establishment of the Boerenwetering Parking Garage in Amsterdam.
The activities included: UW inspection, injection, installation grout bags, underwater concreting.
www.dcndiving.com
Meelfabriek
PROJECT
Bouwbedrijf van der Wiel -Meelfabriek
LOCATION
Leiden
PROJECT DURATION
2019
SCOPE OF WORK
The Meelfabriek is an industrial complex which is put out of service in 1988 and was for a long-time part of the Dutch monumental heritage. In 2000 plans were developed to redesign the complex for living space, catering, office and exhibition spaces. DCN Diving was contracted to conduct underwater activities including pouring of 3.341m3 underwater concreting
for the foundation of the new complex.
www.dcndiving.com
Creating Dry Space
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achievements creating dry space
On following pages a few of the selected projects, for more details visit https://www.dcndiving.com/projects-map/
See also sections Hyperbaric Welding and Hydro Power Dam for Dry Space Solutions
Started with building cofferdams,
habitats, bulkheads in the early
70s.
Since the establishment of DCN
until 2020, DCN has conducted 451
(and still counting) of projects
involving creating dry space.
www.dcndiving.com
Jader Weser port quay wall repairs
PROJECT
Quay Wall Repair Jade Weser Port
LOCATION
Wilhelmshaven, Germany
PROJECT DURATION
2012-2014
SCOPE OF WORK
In 2012 DCN Diving was contracted by Jader Weser ports in Wilhelmshaven to repair 1.800m of Quay Wall. A purpose-built habitat was designed and built, which was connected to a movable diving platform. Divers were able to entry the habitat from the bottom and had a dry environment to work in (see design on the right). The mobile diving platform with habitat was moved on various locations to repair the quay wall, activities inside the habitat included:• Welding/Burning• 2 Component injection• Soil removal• Construction of new Quay Wall• Pouring of Underwater concrete
Habitat and movable dive platform design
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Jader Weser port quay wall repairs
PROJECT
Quay Wall Repair Jade Weser Port
LOCATION
Wilhelmshaven, Germany
PROJECT DURATION
2012-2014
SCOPE OF WORK
During the course of the project, more systems were introduced to increase productivity.
The mobile dive platforms thatwere used were CE approved by German Authorities
www.dcndiving.com
refurbishment of seawater intake
PROJECT
Dubai Refubishment of Seawater Intake
LOCATION
Dubai
PROJECT DURATION
2010-2011
SCOPE OF WORK
DCN Diving was contracted by Dubal Aluminum for the refurbishment of three seawater intake pipelines, each over 400m long, 2 metres in diameter, thick with marine growth, steel condition unknown. Cleaning, grit blasting and airless painting under hyperbaric conditions.
Click here for more info
Design
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refurbishment of seawater intake
PROJECT
Dubai Refubishment of Seawater Intake
LOCATION
Dubai
PROJECT DURATION
2010-2011
SCOPE OF WORK
DCN Diving was contracted by Dubal Aluminum for the refurbishment of three seawater intake pipelines, each over 400m long, 2 metres in diameter, thick with marine growth, steel condition unknown. Cleaning, grit blasting and airless painting under hyperbaric conditions.
Click here for more info
Execution
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refurbishment of seawater intake
PROJECT
Dubai Refubishment of Seawater Intake
LOCATION
Dubai
PROJECT DURATION
2010-2011
SCOPE OF WORK
DCN Diving was contracted by Dubal Aluminum for the refurbishment of three seawater intake pipelines, each over 400m long, 2 metres in diameter, thick with marine growth, steel condition unknown. Cleaning, grit blasting and airless painting under hyperbaric conditions.
Click here for more info
Result
Before After
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coolwater intake rehabilitation
PROJECT
GDF Suez – Wilhelmshaven Coolwater Intake Rehabilitation
LOCATION
Wilhelmshaven
PROJECT DURATION
2010-2011
SCOPE OF WORK
For the project, purpose-built habitats on tracks were designed to safely transfer the divers 600 meters inside of the intake in order to conduct rehabilitation works
www.dcndiving.com
coolwater intake rehabilitation
PROJECT
GDF Suez – Wilhelmshaven Coolwater Intake Rehabilitation
LOCATION
Wilhelmshaven
PROJECT DURATION
2010-2011
SCOPE OF WORK
Cleaning of coolwater intake line with movable habitats. Horizontal penetration up to 600m at 24m waterdepth and 2m underneath seabed.
Pipeline inspection 250 meters inside pipeline visual inspection of connections, multi-beam surveys of cooling water intake and concrete repairs.
www.dcndiving.com
Damen Shipyard slipway rehabilitation
PROJECT
Damen Shipyard – Slipway Repair
LOCATION
Romania
PROJECT DURATION
2012
SCOPE OF WORK
DCN was contracted by Damen Shipyards Galati for the rehabilitation of a damaged slipway.
The habitat was designed to run on the slipway rails and move on hydraulics to the repair locations. Due to the shallow depth a riser on the habitat was utilized to transfer divers and repair the slipway in the dry.
www.dcndiving.com
Emden canal lock hyperbaric repair
PROJECT
Emden Canal Lock
LOCATION
Germany
PROJECT DURATION
2010 and 2017
SCOPE OF WORK
DCN was contracted to conduct hyperbaric repairs in Emden canal lock to the main port.
2010A trunk lock was installed on the sluice door. Inside the canal lock door was a habitat environment. The divers were transferred through the transfer lock in the dry environment in order to conduct the change-out the guiderails.
2017In 2017 similar activities were conducted. In addition to repairs, a habitat with a riser was used in order to scan the entire canal lock in a dry environment.
www.dcndiving.com
Port Of Antwerp construction of quay wall
PROJECT
Construction Quay Wall
LOCATION
Antwerp, Belgium
PROJECT DURATION
2009 2010
SCOPE OF WORK
DCN was contracted to build a new quay wall. A cofferdam was installed and sealed at the quay wall area, afterwards a scaffolding was installed around the cofferdam in order to build the casing. Once the casing was installed, concrete was poured and the quay wall was finalized.
Placing and sealing CofferdamPlacing scaffolding
Concrete pour in Cofferdam Result after concreting
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Port of Antwerp construction of quay wall
PROJECT
Construction Quay Wall
LOCATION
Antwerp, Belgium
PROJECT DURATION
2009 2010
SCOPE OF WORK
DCN was contracted to build a new quay wall. A cofferdam was installed and sealed at the quay wall area, afterwards a scaffolding was installed around the cofferdam in order to build the casing. Once the casing was installed, concrete was poured and the quay wall was finalized.
Placing and sealing CofferdamPlacing scaffolding
Concrete pour in Cofferdam Result after concreting
www.dcndiving.com
Extra Pile Work, MDP‐A Platform
PROJECT
Extra Pile Work, MDP‐A Platform
LOCATION
Turkmenistan, Caspian Sea
SCOPE OF WORK
Arranged & Supervised WelderCoding Engineering for HabitatSupervision of Construction of Habitat Habitat Fit‐out Supply of Habitat Technicians Details of Work: Piles of the MDP‐A Platformwere installed and grouted in 2008, howevertwo of the piles (A1 and B2) remain approximately 15m short of their designpenetration depth. A decision was made to install 4 shear plates on these two piles, in order to achieve design strength. To achieve the required welding quality, the shear plates have to be installed and welded under hyperbaric (dry) conditions, according to a qualified PQR and utilizing certified (coded) hyperbaric welders.
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Extra Pile Work, MDP‐A Platform
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Leg repair LF7-2JKT platform
PROJECT
Leg repair LF7-2JKT platform
LOCATION
China
SCOPE OF WORK
• Arranged & Supervised Welder Coding
• Engineering for Habitat• Supervision of Construction of
Habitat• Habitat Fit‐out• Supply of Habitat Technicians• Details of Work: During an
inspection on the jacket a defect was identified. A repair method was prepared and executed by DCN.
www.dcndiving.com
Leg repair LF7-2JKT platform
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IJmuiden ship lock hyperbaric repair
PROJECT
Ijmuiden Canal Lock Repair
LOCATION
Netherlands
PROJECT DURATION
2012
SCOPE OF WORK
• Hyperbaric system locked on the ships lock’s door
• Maintenance works in dry environment
www.dcndiving.com
Bourogne Sur Mer
PROJECT
Artes Depret - Boulogne Sur Mer
LOCATION
France
PROJECT DURATION
2017
SCOPE OF WORK
Rehabilitation of railway of canal's lock door and lintel beam refurbishment with the use of a habitat system.
The habitat was installed at a depth of 25 meters. A Wet Basket was used to transfer the dives to the habitat, and the habitat entered through the dog-house on the side of the habitat. Once entered the following activities were conducted inside the habitat:• Removal of old lintel beam• HP Waterjetting and concrete
removal• Installation of new lintel beam• Concreting
www.dcndiving.com
Antwerp Cruise-terminal
PROJECT
Cruise-terminal Antwerp
LOCATION
Antwerp
PROJECT DURATION
2017
SCOPE OF WORK
DCN Diving was contracted by Artes Roegiers in 2018 for the design and fabrication of a purpose-built cofferdam in order to rehabilitate the quay wall of the cruise terminal in Antwerp.
The Cofferdam consisted of 7 sections, when assembled 14.5 meter heigh and 5 meter wide. When the Cofferdam is installed dewatering takes place. Once this is completed the area of repair is cleaned with HP Waterjet. Once this area is clean, formwork is installed with reinforcement after which concreting takes place.
There are several positions on the quay wall which requires repair, the cofferdam is therefore installed on several positions and activities are repeated.
www.dcndiving.com
micro habitat project
PROJECT
Micro Habitat
LOCATION
UK Waters
PROJECT DURATION
2019 & 2020
SCOPE OF WORK
• Design and Engineering of the Micro Habitat, including approval from the Client
• Fabrication of 3 x Habitats to cover both horizontal and vertical positions of the jacket brace.
• Development of Installation, Weld and NDT procedures
• Preparations/setting up of mock up in DCN's Wet Test Centre in Bergen op Zoom Netherlands
• Testing installation and Weld Procedure using a 5 man Dive team.
• Hyperbaric Welding Procedure and Diver Welder qualification trials in DCN’s Hyperbaric Centre
• Final repair of Platform braces with the use of Saturation Diving techniques and Micro Habitatat74 msw
www.dcndiving.com
Berendrechtsluis cofferdam
PROJECT
Berendrechtsluis Cofferdam
LOCATION
Port of Antwerp
PROJECT DURATION
2020
SCOPE OF WORK
DCN Diving designed and fabricated a modular cofferdam of 19m x 5m and successfully installed at the Berendrechtsluis in the Port of Antwerp for HERBOSCH-KIERE to create a dry space of 175m3 for the provision of a concrete repair of the bridge construction support.
www.dcndiving.com
Hydro Power Dams
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achievements hydro power dams
On following pages a few of the selected projects, for more details visit https://www.dcndiving.com/projects-map/
Started with subsea services on
hydro power dams in the late 60s.
Since the establishment of DCN
until 2020, DCN has conducted 51
(and still counting) of projects
involving hydro power dams.
www.dcndiving.com
Peares Dam
PROJECT
Uganda Bujagali Dam
LOCATION
Uganda
PROJECT DURATION
January 2012 – August 2012
SCOPE OF WORK
As part of the construction programme of a new hydro power plant for Gas Nateral Fenosa it was necessary to upgrade the bottom intakes of the dam, so that they could be used as intakes for the new Plant. Before executing the upgrade two temporary bulkheads had to be installed at a waterdepthof 85m in order to complete the work in a dry environment. DCN Diving was contracted to design, engineer, fabricate, install the bulkheads and remove when the work was completed.
www.dcndiving.com
Uganda Bujagali Dam
PROJECT
Uganda Bujagali Dam
LOCATION
Uganda
PROJECT DURATION
February 2015 – June 2015
SCOPE OF WORK
DCN Diving was contracted for the development and mobilization of a purpose built cofferdam and to:• 2. Cofferdam installation in
stoplog guide rails of radial gate 1 channel to allow repairing works (by others) in dry conditions.
• Maintenance cofferdam auxiliary equipment during the repairing works (by others)
• Removal of the cofferdam spread including diving equipment and shipment to Bergen op Zoom.
Click for more info
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Roseires Dam
PROJECT
Roseires DamLOCATION
North-East Africa
PROJECT DURATION
January 2017 – May 2017
SCOPE OF WORK
Due to an incident the lintel beam above the maintenance gate had fallen down. Therefore it was required to install a bulkhead in front of the intake in order to repair the lintel beam area and embedded parts. DCN Diving was therefore awarded by SHGC with an EPIC (Engineering, Procurement, Installation, and Commissioning) Project in North-Africa for the re-commissioning of a water intake unit in a hydro power generation dam. Due to a lack of power in this region it was of major importance that the re-commissioning of this intake was carried out in a timely manner.
Click for more info
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Gepatsch Dam
PROJECT
Gepatsch DamLOCATION
Austria
PROJECT DURATIONJanuary 2017 – November 2017
SCOPE OF WORK
TIWAG (Tiroler Wasserkraft AG) manages various civil constructions in the Tiroler area in Austria. One of their assets is the GepatschSpeicher Dam in Kauntertal Austria. This dam is located at an altitude of 1765. This dam It feeds the Kaunertalkraftwerk hydro power station. One of the major issues of this dam, which is a commonly shared issue within the industry, is the accumulation of sediment in front of the dam. DCN Diving was therefore contracted by TIWAG to dredge in front of the spill gates and to install new trashrack system including pouring of underwater concrete at 110msw depth in front of the spillway system.
Click for more info
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Decommissioning& Salvage
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achievements decommissioning
On following pages a few of the selected projects, for more details visit https://www.dcndiving.com/projects-map/
.Between 2010 and 2020 have
been involved in 14 successful
decommissioning & Salvage
projects
www.dcndiving.com
wreck removal and EOD in Basra
PROJECT
Svitzer – Wreck Removal
LOCATIONBasra
PROJECT DURATION2014
SCOPE OF WORK
DCN Diving in collaboration with Svitzer conducted several Wrecks Removal in Basra.
Divers were utilized to locate the wreck and to attach rigging when necessary and to report any unidentified object.
Due to heavy ammunition in the area EOD procedures were implemented to mitigate the risks.
www.dcndiving.com
Shalung offshore crude oil pipeline
PROJECT
Van Oord, Shalung Offshore
LOCATIONTaiwan
PROJECT DURATION2013
SCOPE OF WORK
DCN Diving was contracted in 2013 by Van Oord for the provision of dive support for cold cutting of old pipelines. An air diving spread and diamond wire saw was mobilized on the London Trinity to perform the works.
www.dcndiving.com
hot-tapping sunken vessels
PROJECT
Maersk – Salvage
LOCATIONBay of Biscay
PROJECT DURATIONMay 2017 – July 2017
SCOPE OF WORK
DCN Diving was contracted by Maersk to conduct hot-tapping and recover remaining oil from 2 sunken vessels in the bay of Biscay. The depth was ranging from 120 to 140 msw. An hydraulic operated hottapp machine was utilized to perform the task.
The DSV Swordfish was utilized with an 12 man integrated sat system and a WROV XLX.
Positions of Hottapping
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removal of spools and sensors
PROJECT
Dana Petroleum - Unity
LOCATIONNorth-Sea, Netherlands
PROJECT DURATIONFebraury 2019 – June 2019
SCOPE OF WORK
DCN Diving was contracted by Dana Petroleum for the fabrication and removal and installation of pipeline spool, IRM at Dana’s Platforms (F2-A, P10-05, P11-B, P11-C, P11-01, P11-09), Replacement of New Sensors in subsea structures.
A Proserve diamond wire cutter was utilized to cut and retrieve the pipe.
The work was conducted with a mobilized Air Diving and ROV spread on the Normand Mermaid. The works was completed well within schedule and budget.
www.dcndiving.com
PROJECT
Neptune Energy
LOCATIONNorth-Sea, Netherlands
PROJECT DURATIONJune 2019 – July 2019
SCOPE OF WORK
DCN Diving was contracted by Neptune Energy to decommission the side tap, riser and pipeline. The 14” pipeline section between platform L08-G and the Side tap was not used anymore, the system was therefore decommissioned.
A pro-serve diamond wire cutter was used for the operation.
Onboard the Normand Mermaid, an Air Diving Spread and ROV was mobilized to support the operation.
side tap, riser and pipeline decommissioning
www.dcndiving.com
BIGP Removal of old PLEM and Pipeline
PROJECT
BIGP Removal of PLEM
LOCATIONIndonesia
PROJECT DURATIONAugust 2019 – December 2019
SCOPE OF WORK
Removal of old pipeline, MWA and PLEM for the redevelopment of BIGP Oil field.
The activity was conducted with 2 WROV XLX a diamond wire cutter
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ROV & ROCM
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Achievements ROV & ROCM
On following pages a few of the selected projects, for more details visit https://www.dcndiving.com/projects-map/
Utilizing Cougar XT (Semi
WROV) for major Workclass
ROV jobs, to safe cost for the
client (refer to recognition
from SAAB SeaEye).
Between 2010 and 2020, 25
projects have been
successfully completed
Development of the world’s
very first Remotely Operated
Cleaning Machines for
coolwater intake project in
China
www.dcndiving.com
Butendiek & Borkum Rifgrund
PROJECT
Butendiek & Borkum Rifgrund
LOCATIONGermany
PROJECT DURATION2011-2013
SCOPE OF WORK
Butendiek:Messenger wire installation with ROV with the Cougar Compact XT.
Rifgrund:ROV and diving assistance during installation suction bucket jacket.
www.dcndiving.com
Butendiek & Borkum Rifgrund
PROJECT
Dong Energy - Godewind 1 + 2
LOCATIONGermany
PROJECT DURATION2014
SCOPE OF WORK
Grouting Hose Removals on Godewind 1&2 OWF Cutting and Removal of grouting hoses on 97 structures. Cable Protection Systems Surveys. Surveys of Cable Protection Systems on Godewind 1&2 OWF monopiles, OSS & infield.
Click Here for more Info
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BIGP Project
PROJECT
BISON, IGUANA AND GAJAH PUTERI (BIGP) DEVELOPMENT PROJECT
LOCATION
IndonesiaPROJECT DURATION
August 2019 – December 2019
SCOPE OF WORK
The work included but was not limited to:• Umbilicals Installation• AGX ans SSIV Installation• Flexible Risers, Clamps
Installation• Spools installation• PLEMs Installation• MWA Removal & Installation• Flexible Pipeline Installation
SYSTEMMPV Everest with 2 x WROV XLX, 1 x Comanche
Click for more info
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remotely operated cleaning machine
PROJECT
Blackwater Power Plant Coolwater Intake Rehabilitation Hong Kong
LOCATION
Hong KongPROJECT DURATION
2004SCOPE OF WORK
In 2004 DCN was contracted to Rehabilitate 4 x 450m cool-water lines in Blackwater Power Station in Hong Kong for CLP.In order to execute this project DCN Designed, Engineered and Manufactured 2 moveable habitats for back up and transport inside cool water channels and 1 Remotely Operated Cleaning Machine (ROCM).The ROCM was initially deployed to clean the intake and the habitat moved right behind it to conduct the following works: 4 culverts were constructed, cleaning of dosing line was performed, repairing joints and replacement of some sections.
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Hyperbaric & Wet Welding
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achievements hyperbaric & wet welding
On following pages a few of the selected projects, for more details visit https://www.dcndiving.com/projects-map/
Started in the 70s with hyperbaric
welding, using a habitat system.
Since the establishment of DCN
until 2020, DCN has successfully
completed 61 (and still counting)
of hyperbaric & wet welding
projects
www.dcndiving.com
Sochi Gas Pipeline Repair
PROJECT
PGN – Live Gas Pipeline Repair
LOCATION
Indonesia
PROJECT DURATION
January 2015 – October 2015
SCOPE OF WORK
DCN was contracted by GSP in 2012 to carry out PQR for Welder & Procedure qualifications, which was undertaken in DCN’s facility and to Design a habitat that could seal off on the piggy bag system and to conduct the hyperbaric weld offshore. A full mock-up took place of the habitat and a dummy pipe.
The pressure to complete the project within schedule was high, because the repair was required to increase productivity of Sochi pipeline to accommodate the 2014 Winter Olympics in Russia.
www.dcndiving.com
PGN live gas pipeline repair
PROJECT
PGN – Live Gas Pipeline Repair
LOCATION
IndonesiaPROJECT DURATION
January 2015 – October 2015SCOPE OF WORK
In 2015 DCN was contracted by PGN to provide and execute a solution to permanently repair a leaking gas pipeline at 24 meters depth. This subsea pipeline provided gas to the biggest Electricity Plan in Jakarta. Due to economical impact it was not possible to shut down the pipe for. DCN therefore develop a method to safely permanently repair the gas pipeline. DCN successfully completed the project from Design, Engineering and Fabricating of the Purpose Built Habitat and Suction Piles and the Gas containment Clamp and Stand-Off Sleeve.
Click for more info
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Japan PLEM Replacement
PROJECT
KKSB PLEM Replacement
LOCATION
Tokyo Bay
PROJECT DURATION
January 2018 – August 2018
SCOPE OF WORKNSENGI (Main Contractor) was contracted by TOA Oil (Operator/Client) to replace KKSB Pipeline PLEM. DCN was contracted by Fugro (Diving Subontractor) to conduct the following Scope:• All Welding and Habitat
installation related engineering• Providing Hyperbaric Welding• Spread and Hyperbaric Welding
Team• WPQT in Hyperbaric Welding
Centre Bergen op Zoom• Conduct the Production Weld
Subsea
Click for more info
www.dcndiving.com
ICCP anode repair
PROJECT
ICCP Anode Repair
LOCATION
Germany
PROJECT DURATION
February – March 2018
SCOPE OF WORK
DCN was contracted Wet Welding ICCP Anode Repair Project with the VOS Sugar. Prior to the offshore phase, wet welding trials were conducted in the Netherlands in order to qualify the Welding procedure and the Diver Welders
www.dcndiving.com
micro habitat trials
PROJECT
Micro Habitat Trials
LOCATION
Bergen op Zoom Netherlands
PROJECT DURATION
August 2019 – December 2019
SCOPE OF WORK
A Major North Sea Operator contracted DCN to investigate and prove different methodologies to repair weld defects on a platform in the North Sea. One such method involved the use of a micro-habitat deployed around the repair site. The habitat would be deployed from a DSV and most likely transferred to a platform winch for lowering to the worksite. The habitat is then sealed and dewatered. A pair of gloves integrated into the casing of the habitat enables the diver to get his hands inside and manipulate welding and NDT Equipment.
Please click here for more info
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Caissons
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On following pages a few of the selected projects, for more details visit https://www.dcndiving.com/projects-map/
Tailor made procedures and
decompression tables in order
to operate in caisson
environments
achievements caissons
.
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North – South Metro Amsterdam p1
PROJECT
Immersion Caisson
LOCATION
Amsterdam
PROJECT DURATION
2005
SCOPE OF WORK
DCN was contracted to assist with the immersion of a caisson for the North-South Metro in Amsterdam.
Hyperbaric workers were utilized to conduct HP waterjetting and removal of sediment and rocks activities in order to immerse the caisson. The hyperbaric works were in full supervision of DCN.
Hyperbaric conditions was 1.8 bar.
www.dcndiving.com
North – South Metro Amsterdam p2
PROJECT
Immersion Caisson
LOCATION
Amsterdam
PROJECT DURATION
2007
SCOPE OF WORK
DCN was contracted to assist with the immersion of a caisson for the North-South Metro in Amsterdam.
Hyperbaric workers were utilized to conduct HP waterjetting and removal of sediment and rocks activities in order to immerse the caisson. The hyperbaric works were in full supervision of DCN.
Hyperbaric conditions was 1.8 bar.
www.dcndiving.com
immersion caisson Hamburg
PROJECT
Immersion Caisson Kattwykbrug
LOCATION
Hamburg
PROJECT DURATION
2018-2019
SCOPE OF WORK
DCN Diving was contracted by VSF for the assistance to immerse caissons which functions as supports for the new Kattwykbrug.
Main scope of the Works was to excavate sediment from the caisson in order for it to sink to a depth of 30 meters. .
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Tunneling & Bridges
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achievements bridges tunneling
On following pages a few of the selected projects, for more details visit https://www.dcndiving.com/projects-map/
.DCN has been involved in
some major bridge and
tunneling projects in the EU,
Forth Crossing Scotland,
Westerscheldetunnel,
Rotterdamsebaan
www.dcndiving.com
TBM Saturn
PROJECT
Saturn – Rotterdamse Baan
LOCATION
Amsterdam
PROJECT DURATION
2010
SCOPE OF WORK
For the construction of the Rotterdamse Baan tunnel, DCN was contracted by Saturn to assist with TBM operations.
Procedures were developed to work under hyperbaric conditions
Works included:• Inspection drill head• Exchanging cutter heads• Operation 20m or more
underground with approx. 2.5 bar overpressure in front of the TBM
www.dcndiving.com
Temse Bridge
PROJECT
Temse Brug
LOCATION
Belgium
PROJECT DURATION
2008
SCOPE OF WORKDCN Diving was contracted by Hye for the dive support of the construction of the Temse Brug (bridge). The work consisted of dredging, installation of sheet piles (including underwater welding and cutting), installation of concrete reinforcements and underwater concreting including final inspection.
www.dcndiving.com
Zeebrugge Fluxys
PROJECT
Zeebrugge Fluxys
LOCATION
Belgum
PROJECT DURATION
2010
SCOPE OF WORK
Bridge pile repair using a cofferdam system to create a dry environment.
www.dcndiving.com
Söderström Tunnel
PROJECT
Söderström Tunnel
LOCATION
Sweden
PROJECT DURATION
2010-2013
SCOPE OF WORKThe tunnel was fixed at the southern end in the rock at Södermalm and has a free end at the joint house (at the northern end) where movements can take place.
DCN Diving was contracted for the execution of all diving activities prior to and during placing of tunnel elements engineering, method statements, preparation, underwater concreting and removal of subsea lifting structures on elements and further dive support.
Please click here for more details
www.dcndiving.com
Forth Road Crossing Bridge
PROJECT
Forth Road Crossing Bridge
LOCATION
Scotland
PROJECT DURATION
2013-2015
SCOPE OF WORKUnderwater concreting and subsea support for the construction of the foundations of the new cable-stayed bridge being built to replace the Forth Road Crossing. The bridge is to be 2.7km long. (2012)
www.dcndiving.com
Ismalia Tunnel
PROJECT
Ismalia Tunnel
LOCATION
Suez Canal, Egypt
PROJECT DURATION
2016-2017
SCOPE OF WORKDCN Diving was contracted by Petrojetand Concord for Dive Assistance for the provision of ventilations shafts for Ismalia tunnel under the Suez Canal.
Work consisted of dredging, installation of shafts and underwater concreting at a depth of 65m.
www.dcndiving.com
Comol5 TBM
PROJECT
Comol5
LOCATION
Netherlands
PROJECT DURATION
2019
SCOPE OF WORKFor the construction of the Comol5 connection, DCN was contracted by Comol5 (contractor joint venture for the construction of Comol5 project) to assist with TBM operations.
Procedures were developed to work under hyperbaric conditions.
Works included:• Regular inspection of drill head
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Engineering
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achievements in engineering
On following pages a few of the selected projects, for more details visit https://www.dcndiving.com/projects-map/
.DCN has been involved in
innovative subsea engineering
designs a few examples,
ROCM, Self-Propelled
Habitat, Micro Habitat, UW
Concreting Surfer, Hyperbaric
Welding Systems
www.dcndiving.com
micro habitat
habitat suction piles solution
habitat elephant feet solution
cofferdam remotely operated cleaning machine quay wall cofferdam
some examples of engineering solutions
www.dcndiving.com
survey & IRM
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achievements survey
On following pages a few of the selected projects, for more details visit https://www.dcndiving.com/projects-map/
Between 2015 and 2020, DCN has
been involved in 11 successful
survey & IRM projects.
www.dcndiving.com
Pre-Engineering Pipeline Survey
PROJECT
Pre-Engineering Survey Pipeline Repair
LOCATION
Indonesia
PROJECT DURATION
2015
SCOPE OF WORKPipeline survey (for pre-engineering), removal of concrete weight coat, fabrication of Gas containment clamps and stand off sleeve, Hyperbaric Welding Procedure and Diver Welder qualifications according to DNV FS101. Hyperbaric Emergency Repair of Live Gas Pipeline (included installation of habitat supports and habitat, isntallation of clamps and welding of stand-off sleeve and conducting hyperbaric NDT).
Explora Nusantara and Normand Baltic
www.dcndiving.com
Hanze F2A 2018 & 2019 IRM Campaign
PROJECT
Dana Petroleum – IRM Campaign Hanze F2A
LOCATION
Netherlands
PROJECT DURATION
2018 & 2019
SCOPE OF WORKPlatform based diving IRM (GVI, CVI, CP, UT, Corrosion Mapping, NDT)
www.dcndiving.com
BIGP
PROJECT
BIGP Project
LOCATION
Indonesia
PROJECT DURATION
2019
SCOPE OF WORKInstallation of subsea structures, spools, mid-water arch, GVI with WROV, Flexible Pipeline Installation
www.dcndiving.com
Hyperbaric & Wet Centre
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Particulars• 200m Depth rated• 280m Test pressure rated• Insert pipes up to 72’’• Humidity control• Training facility for divers• Hyperbaric medical treatment facility• Living accommodation• Suitable for:
• Welding• Moulding • Pressure testing
hyperbaric test centre
www.dcndiving.com
The Trials Chamber:The completely separated welding chamber is suitable for welding and testing with a working pressure of up to 200 meter and a testing pressure of up to 280 meter. The atmosphere, for example humidity, can be completely adjusted to the requirements of any specific project. The facility has practically no size limitations: it is designed to test pipes with a maximum diameter of 48 inches.
hyperbaric test centre
www.dcndiving.com
Standard IMCA D024 Design
No. Divers 8-Man System
No. Chambers
2 x Living Chambers, 1 x TUP
Evacuation 8-man Hyperbaric Rescue Craft on wheels
Certified Lloyds
Control Rooms
1 x Trial Chamber Control Room, 1 x Sat Control Room
hyperbaric test centre
www.dcndiving.com
Type Wet test centre for the provision of Wet Welding Qualifications and testing of components
Year of Build 2019
Depth water tank
5m
Diving system Dedicated Dive Control Unit including Decompression chamber
Crane Overhead crane
wet test centre
www.dcndiving.com
DCN Diving B.V.Van Konijnenburgweg 1514612 PL, Bergen op ZoomThe NetherlandsT: 0031 (0)164 214 343F: 0031 (0)164 256 [email protected]@dcndiving.com
Our Offices
DCN Diving Germany (Unterwasserbauten)Westpromenade 11D 52525, HeinsbergGermanyT: 0049 (0)2452 953 9490F: 0049 (0)2452 953 [email protected]
DCN Diving B.V. Abu DhabiOffice 325, Al Fahim HQ BuildingMussafah, Plot 8, Sector M4United Arab EmiratesT: +971 2 [email protected]
DCN Diving Sdn BhdLevel 26, Menara MaxisKuala Lumpur City Centre50088 Kuala Lumpur. MalaysiaT: +603 2615 7808F: +603 2615 [email protected]
DCN Pacific Pte Ltd.Loyang Offshore Supply BaseLoyang Crescent, Singapore 508988Block 103, #04-01T: [email protected]
DCN Diving BelgiumHofstraat 99150, KruibekeBelgiumT: 0031 (0)164 214 343F: 0031 (0)164 256 [email protected]
