Project Experience
30 Years of Cathodic Protection, Inspection and Consulting Projects Around the World
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Offshore Wind Farm
Europe
In 2018-9, Deepwater retrofitted the cathodic protection system on 33 wind turbines in a German offshore wind farm.
Key project stats
- FIELD: 33 TRIPOD TURBINES
- INSTALL: < 24 HRS / TURBINE
Leman Alpha
North Sea, UK
In 2017, Deepwater retrofitted the cathodic protection system on the structures in the Leman complex.
Key project stats
- INSTALL: 12 HOURS PER BUOY
- DEPTH: 35 M
- 25 YEAR DESIGN LIFE
TAQA North Cormorant
North Sea, UK
The platform was installed with a galvanic anode cathodic protection (CP) system, mounted directly on to the jacket.
Key project stats
- Fixed Platforms
- INSTALLATION: ROV
- INSTALL TIME: 18 hrs
Tapis-F & Irong Barat B
SE Asia
RetroPods and RetroClamps used to replace of depleted anodes to extend cathodic protection on two fixed platforms for 20 years.
Key project stats
- Fixed Platforms
- INSTALLATION: ROV
- INSTALL TIME: 63 hrs
Tabu, Guntong, Semangkok
SE Asia
RetroSleds and RetroClamps used ot replace of depleted anodes discovered during a pipeline survey campaign in Malaysia.
Key project stats
- 3 PIPELINES
- INSTALLATION: ROV
- INSTALL TIME: 4 DAYS
Dudgeon OWF
North Sea, UK
In 2016, Deepwater installed remote cathodic protection monitoring on four offshore wind turbine generators
Key project stats
- 4 Offshore Turbines
- 32 km Offshore
Liverpool Bay OSI
North Sea, UK
Deepwater installs the RetroSAM anode system to protect the hull of the offshore storage installation (OSI) at Liverpool Bay.
Key project stats
- Installaion: Topside
- Offshore time: 4 days
- Unit is Storm-recoverable
- 10 year life extension
Olympus Field PBGs
US, Gulf
Deepwater installs self-monitored anode sleds in the Gulf of Mexico to protect 24 new PGBS at 3000 ft for 45 years.
Key project stats
- INSTALLATION: ROV
- INSTALL TIME: 30 HOURS
- BATTERY-FREE MONITORING
- 45 YEAR DESIGN LIFE
Ewing Bank 305-A
US, Gulf
Deepwater added 20 years of anode life to EW-305 with two RetroBuoy impressed current cathodic protection sleds.
Key project stats
- WATER DEPTH: 300 FT
- 20 YEAR LIFE EXTENSION
- 800 AMPS of CP Current
ERWB Jackets
SE Asia
Deepwater installs RetroPods and V-Strings in the Gulf of Thailand to extend the life of two bridge-connected jackets in 200 ft of water.
Key project stats
- Bridge-connected jackets
- Water Depth: 200 ft
- Install Time: 60 hours
- Seabed anodes only
LAF-1 & 2 Platforms
West Africa
Deepwater installs three impressed current cathodic protection retrofit anode sleds on 2 platforms in the Gulf of Guinea, extending the life by 20 years.
Key project stats
- INSTALLATION: ROV
- IMPRESSED CURRENT ANODES
Eugene Island 295-A
US, Gulf
RetroLinks installed on Nexen platform in the Gulf of Mexico to restore cathodic protection.
Key project stats
- INSTALLATION: DIVERS
- INSTALL TIME: 60 HOURS
- DEPTH: 220 ft
8 inch Pipeline
US, Gulf
Deepwater was contracted by Chevron to provide cathodic protection (CP) retrofit materials for their 8” wet oil pipeline running from their fixed jacked to shore.
Key project stats
- Installation: Divers
- Offshore time: 30 hours
- Length: 4.5 km
- As left: -0.998V vs Ag/AgCl
Chinook Field PLET
US, Gulf
Under pressure, Deepwater designed and installed a mini-gateway retrofit anode system in the Chinook field on a PLET.
Key project stats
- Continuity jumper
- Borrowed CP from PLET
- Custom design
- 2 week turnaround
24 Inch Methanol Pipeline
West Africa
Concrete mattresses with integral anodes (Retromat) used to retrofit new cathodic protection for a pipeline in Equatorial Guinea.
Key project stats
- LOCAL ASSEMBLY
- OFFSHORE TIME: 3 Days
- LENGTH: 2 KM
- AS LEFT: -1.025V vs Ag/AgC
Black Bay Platforms
US, Gulf
In 2012, Deepwater retrofit new anode strings for 69 structures in Black Bay, extending the cathodic protection life of the field.
Key project stats
- 115 Anode Strings
- 22 Continuity jumpers
- STRUCTURES: 69
- OFFSHORE TIME: 22 DAYS
South Pass 62-C
US, Gulf
Two RetroBuoy systems replace spent anodes on a 330 ft platform in South Pass, Gulf of Mexico adding 20 years of life.
Key project stats
- INSTALL TIME: 30 HOURS
- DEPTH: 330 ft
- 20 YEAR DESIGN LIFE
Forties Field Platforms
North Sea, UK
Deepwater successfully designed, deployed and commissioned 9 (nine) RetroBuoy systems to 4 (four) fixed platforms located in the North Sea.
Key project stats
- 4 FIXED PLATFORMS
- 9 x 450 AMP SLEDS
- INSTALL: 12 HOURS EACH
- 20 YEAR DESIGN LIFE
Lufeng 13-2
China
Impressed current cathodic protection system retrofit to replace spent anodes on a South China Sea platform.
Key project stats
- Platform installed 2005
- Premature anode failure
- Depth: 430 ft
- Supplemental ICCP Anodes
Ras Gharib Platform
New anodes retrofitted for a fixed platform in the Egyptian Red Sea boost the cathodic protection system for 20 more years.
Key project stats
- INSTALL: DIVERS
- INSTALL TIME: 24 HOURS
- DEPTH: 14 m
- AS LEFT: (-)1.050V vs Ag/AgCl
Arklow Bank
Europe
In June 2005, Deepwater supplied and supervised the installation of seven (7) impressed current anodes on wind turbine monopiles in the Irish Sea.
Key project stats
- 7 x Wind Turbines
- Water depth: 10 m
- Offshore time: 11 days
Neptune Spar
US, Gulf
In September 2009, Deepwater retrofitted the cathodic protection system on the hull of the Neptune SPAR.
Key project stats
- INSTALL TIME: 72 HOURS
- DEPTH: 1,930 FT
- 15 YEAR DESIGN LIFE
Alba Field
West Africa
Pipeline anode retrofit of an offshore process pipeline in Equatorial Guinea's Alba Field with low cathodic protection potentials.
Key project stats
- INSTALLATION: ROV
- DEPTH: 200 FT
- Sacrificial anode sled
Bahamas Loading Dock
Caribbean
RetroLink anode string system was used to replace the damaged cathodic protection system for loading dock in the Bahamas.
Key project stats
- Sacrificial Anodes
- Diverless install
Cook Inlet Pier
Alaska
Deepwater develops Raparound pile anodes for harsh conditions in the Cook Inlet, Alaska, where all others had failed.
Key project stats
- 1800 AMPS of CP
- Freeze / Thaw resistant
Duncan Wharf
Canada
A cathodic protection retrofit for the Duncan Wharf, an aluminum loading berth in Port Alfred with ICCP anodes.
Key project stats
- Semi-Artic temperatures
- 3,700 AMPS of CP
Forties field flowlines
North Sea, UK
Anode retrofit for the in-field flowlines on the Forties field in the North Sea
Key project stats
- INSTALL TIME: 60 HOURS
- Depth: 106 m
Kitchen Lights
Alaska
Impressed current anode system designed for a new platform in Alaska
Key project stats
- New Fixed Jacket
- Cook Inlet, Alaska
- Impressed current
Arnold / Oyster Fields
US, Gulf
New cathodic protection anodes installed on two deep water fields in just 73 hours, including well trees, flowline manifolds, umbilical termination units, and flow lines.
Key project stats
- Installation: ROV
- Install time: 72 hours
- Depth: 775 ft / 1,750 ft
GOM Structures
US, Gulf
Deepwater replaces aluminum cathodic protection anodes on 5 platforms in the Gulf of Mexico in 14 days with the RetroPod system.
Key project stats
- 5 fixed jackets
- Install time: 14 days
- 210' four point boat
Shenzi Subsea Tree
US, Gulf
The first SunStation cathodic protection monitoring system, installed on a Shenzi subsea christmas tree, was interrogated by ROV.
Key project stats
- Water Depth: 4,300 ft
- 25 Year monitoring system
- No batteries required
Garden Banks 191 A
US, Gulf
Deepwater retrofits cathodic protection on a fixed platform in 720 ft. water in less than 2 days with the RetroBuoy impressed current system.
Key project stats
- Water depth: 720 ft
- Installation: ROV
- INstall time: 2 days
Tubular Bells
US, Gulf
Sacrificial anode retrofit for two pipelines located in the Mississippi Canyon area of the Gulf of Mexico.
Key project stats
- Water depth: 4,500 ft
- Installation: ROV
Joliet TLP
US, Gulf
RetroPod anode sleds and RetroClamps retrofit cathodic protection anodes on a tension leg well platform in Green Canyon, Gulf of Mexico.
Key project stats
- Water depth: 1,760 ft
- 19 x RetroPods
6 Bay Marchand Platforms
US, Gulf
61 RetroLink anode strings provide new cathodic protection for six shallow-water structures in the Gulf of Mexico.
Key project stats
- 6 structures
- 61 Anode strings
- 5 year life extension
PanYu 30-1
China
RetroBuoy impressed current anode sleds installed to retrofit cathodic protection on an 8 leg fixed platform in the South China Sea.
Key project stats
- Water depth: 200 m
- Fixed monitoring
Frying Pan Tower
US, South East
Deepwater designs an anode string retrofit for an offshore bed and breakfast on a former lighthouse platform of North Carolina.
Key project stats
- Civilian owned
- 12 Retrolinks
Ship Shoal Structures
US, Gulf
64 RetroLink anode strings used to protect wellhead platforms, gas lift manifolds and production platforms, including pipeline risers in the Gulf of Mexico.
Key project stats
- 64 RetroLinks
- 25 Structures
Zafiro Producer
West Africa
Deepwater installs a RetroBuoy ICCP anode sled retrofit system on ExxonMobil's Zafiro Producer FPSO in Equatorial Guinea.
Key project stats
- Water depth: 590 ft
- Dynamic cable
- 800 Amps CP
Green Canyon
US, Gulf
Deepwater supplied seven Retropod anode sleds for Neptune 6 and Shenzi 8 platforms in the Gulf of Mexico
Key project stats
- Water depth: 4,400 ft
- Install time: 3 days
Brent Pipeline
North Sea, UK
Deepwater retrofits major North Sea pipeline using RetroMat and RetroClamp to provide pipeline cathodic protection.
Key project stats
- 12 km pipeline
- Conctrete Weight Coat
- 15 year life extension
Offshore Drill Stack
Australia / NZ
Cathodic protection levels monitored and corrected on a drill stack in Australia, with remediation to coating and sacrififcal anodes.
Key project stats
- Recap Datalogger
- CP & Coating Remediation