Cathodic protection design

Kitchen Lights

Project Case Study: ICCP anode system for a new platform in Alaska

• New Fixed Jacket
• Cook Inlet, Alaska
• Impressed current

PanYu 30-1

Project Case Study: ICCP anode retrofit for eight-leg structure in the South China Sea

• Water depth: 200 m
• Fixed monitoring

Forties Field Platforms

Project Case Study: Nine Retrobuoy systems installed to protect four aging North Sea structures.

• 4 FIXED PLATFORMS
• 9 x 450 AMP SLEDS
• INSTALL: 12 HOURS EACH
• 20 YEAR DESIGN LIFE

Green Canyon

Project Case Study: Anode sleds installed at Neptune and Shenzi fields

• Water depth: 4,400 ft
• Install time: 3 days

Arnold / Oyster Fields

Project Case Study: Anode retrofit on two deep water subsea fields in the Gulf of Mexico

• Installation: ROV
• Install time: 72 hours
• Depth: 775 ft / 1,750 ft

Joliet TLP

Project Case Study: Anode retrofit for the foundation template of a TLWP in Green Canyon

• Water depth: 1,760 ft
• 19 x RetroPods

Chinook Field PLET

Project Case Study: Deepwater designs a mini-gateway retrofit in the Gulf of Mexico

• Continuity jumper
• Borrowed CP from PLET
• Custom design
• 2 week turnaround

Lufeng 13-2

Project Case Study: Two Retrobuoy systems for a fixed platform in the South China Sea

• Platform installed 2005
• Premature anode failure
• Depth: 430 ft
• Supplemental ICCP Anodes

Offshore Drill Stack

Project Case Study: CP levels monitored and corrected

• Recap Datalogger
• CP & Coating Remediation

Zafiro Producer

Project Case Study: Impressed Current cathodic protection of FPSO Hull

• Water depth: 590 ft
• Dynamic cable
• 800 Amps CP

Brent Pipeline

Project Case Study: Pipeline anode retrofit with matresses

• 12 km pipeline
• Conctrete Weight Coat
• 15 year life extension

Garden Banks 191 A

Project Case Study: ICCP anode sleds retrofit on a GOM fixed platform

• Water depth: 720 ft
• Installation: ROV
• INstall time: 2 days

Cook Inlet Pier

Project Case Study: Deepwater designs and installs new impressed current pile anode in Alaska.

• 1,800 AMPS of CP
• Freeze / Thaw resistant

Dock Cathodic Protection

Anodes systems for Docks, Jetties and Piers

Offshore Wind Farm

Project Case Study: ICCP anode sled to supplement failing anodes on 33 wind turbines

• FIELD: 33 TRIPOD TURBINES
• INSTALL: < 24 HRS / TURBINE

TAQA North Cormorant

Impressed Current Cathodic Protection (ICCP) Retrofit on the North Cormorant Platform

• Fixed Platforms
• INSTALLATION: ROV
• INSTALL TIME: 18 hrs

Tapis-F & Irong Barat B

Project Case Study: anodes replaced on two Malaysian platforms

• Fixed Platforms
• INSTALLATION: ROV
• INSTALL TIME: 63 hrs

Leman Alpha

Project Case Study: ICCP anode sled to supplement failing anodes on three structures

• INSTALL: 12 HOURS PER BUOY
• DEPTH: 35 M
• 25 YEAR DESIGN LIFE

Neptune Spar

Project Case Study: ICCP anode sled to supplement failing anodes on the hull

• INSTALL TIME: 72 HOURS
• DEPTH: 1,930 FT
• 15 YEAR DESIGN LIFE

Dudgeon OWF

Project Case Study: Remote Cathodic Protection Monitoring System Installed in the North Sea

• 4 Offshore Turbines
• 32 km Offshore

Tabu, Guntong, Semangkok

Project Case Study: anodes replaced during pipeline survey campaign

• 3 PIPELINES
• INSTALLATION: ROV
• INSTALL TIME: 4 DAYS

Frying Pan Tower

Project Case Study: Offshore Bed and Breakfast platform anode retrofit

• Civilian owned
• 12 Retrolinks

Olympus Field PBGs

Project Case Study: Self-monitored anode sled protects 24 new PGBS at 3000 ft for 45 years.

• INSTALLATION: ROV
• INSTALL TIME: 30 HOURS
• BATTERY-FREE MONITORING
• 45 YEAR DESIGN LIFE

GOM Structures

Project Case Study: Cathodic protection retrofit on five structures in fourteen days

• 5 fixed jackets
• Install time: 14 days
• 210' four point boat

Forties field flowlines

Project Case Study: Anode retrofit for the in-field flowlines in the North Sea

• INSTALL TIME: 60 HOURS
• Depth: 106 m

Bahamas Loading Dock

Project Case Study: Failing dock anodes replaces with topside anode strings

• Sacrificial Anodes
• Diverless install

Alba Field

Project Case Study: Anode replacement on a pipeline in EG

• INSTALLATION: ROV
• DEPTH: 200 FT
• Sacrificial anode sled

California wave park survey

Project Case Study: California Wave Park Corrosion Survey

• CVI/NDT Inspection Done
• 500,000 Sq. Ft. + Facility
• 55+ Assets Inspected
• ICCP Retrofit Recommended

Arklow Bank

Project Case Study: ICCP anode system for wind farms in the Irish Sea

• 7 x Wind Turbines
• Water depth: 10 m
• Offshore time: 11 days

Houston Ship Channel Dock

Project Case Study: Houston Ship Channel Retrofit

• 5 Docks Protected
• Installation: Divers
• 47 RetroLinks Installed
• 16 ICCP Anodes Installed

South Pass 62-C

Project Case Study: Two RetroBuoy systems replace spent anodes on a 330 ft platform in the Gulf of Mexico

• INSTALL TIME: 30 HOURS
• DEPTH: 330 ft
• 20 YEAR DESIGN LIFE

LAF-1 & 2 Platforms

Project Case Study: Single float Retrobuoy systems installed in the Gulf of Guinea.

• INSTALLATION: ROV
• IMPRESSED CURRENT ANODES

Liverpool Bay OSI

Project Case Study: Hanging ICCP anode system istalled to protect the hull of a floating storage vessel

• Installation: Topside
• Offshore time: 4 days
• Unit is storm-recoverable
• 10 year life extension

Dana Triton FPSO retrofit

Project Case Study: Hanging ICCP anode system installed to protect the hull of a floating storage vessel

• Installation: Topside
• Unit is storm-recoverable
• Remote O&M

6 Bay Marchand Platforms

Project Case Study: Anode Retrofit of 6 Bay Marchand Platforms

• 6 structures
• 61 Anode strings
• 5 year life extension

Tubular Bells

Project Case Study: Anode retrofit for production pipelines in Mississippi Canyon

• Water depth: 4,500 ft
• Installation: ROV

Ship Shoal Structures

Project Case Study: RetroLink anode strings on shallow-water assets in the Gulf of Mexico

• 64 RetroLinks
• 25 Structures

Black Bay Platforms

Project Case Study: Anode strings retrofit on 69 structures in Black Bay, Gulf of Mexico

• 115 Anode Strings
• 22 Continuity jumpers
• STRUCTURES: 69
• OFFSHORE TIME: 22 DAYS

24 Inch Methanol Pipeline

Project Case Study: RetroMat anode sleds installed on the Atlantic methanol pipeline in EG

• LOCAL ASSEMBLY
• OFFSHORE TIME: 3 Days
• LENGTH: 2 KM
• AS LEFT: -1.025V vs Ag/AgC

Eugene Island 295-A

Project Case Study: Spent platform anodes replaced with subsea anode strings by divers

• INSTALLATION: DIVERS
• INSTALL TIME: 60 HOURS
• DEPTH: 220 ft

Ewing Bank 305-A

Project Case Study: Two large impressed current anode sleds installed on a GOM platform

• WATER DEPTH: 300 FT
• 20 YEAR LIFE EXTENSION
• 800 AMPS of CP Current

8 inch Pipeline

Project Case Study: RetroLink Anode Strings used to retrofit cathodic protection on 8 inch pipeline

• Installation: Divers
• Offshore time: 30 hours
• Length: 4.5 km
• As left: -0.998V vs Ag/AgCl

Shenzi Subsea Tree

Project Case Study: SunStation CP monitoring system interrogated by ROV at 4,300 ft

• Water Depth: 4,300 ft
• 25 Year monitoring system
• No batteries required

Ras Gharib Platform

Project Case Study: Retrofit anode sleds or a fixed platform in the Red Sea

• INSTALL: DIVERS
• INSTALL TIME: 24 HOURS
• DEPTH: 14 m
• AS LEFT: (-)1.050V vs Ag/AgCl

ERWB Jackets

Project Case Study: Seabed anode sleds retrofit CP on Gulf of Thailand platforms

• Bridge-connected jackets
• Water Depth: 200 ft
• Install Time: 60 hours
• Seabed anodes only

BARD offshore transformer platform

Project Case Study: Four Retrobuoy systems for a fixed platform in the North Sea

• Platform installed 2010
• Premature anode failure
• 25-year design life

Duncan Wharf

Project Case Study: Cathodic protection retrofit using impressed current anode sleds

• Semi-Artic temperatures
• 3,700 AMPS of CP

Hydrogen Embrittlement Study

Project Case Study: Hydrogen Embrittlement Study

I-Rod® 28 years after installation

The cost of a bad pipe support