Dock and Jetty Cathodic Protection Case Study

Dock and Jetty Cathodic Protectionhttp://www.stoprust.com/tb2-dock-and-jetty-cathodic-protection.htm Home Product index Home Technical library Project experience News Careers Contact www.stoprust.com Technical Library Dock and Jetty Cathodic Protection (Tech Bulletin) Cathodic Protection Polatrak® CP Monitoring Corrosion Testing Probes I-Rod® Pipe Supports Sacrificial Anodes Corrosion Inspection Technical Bulletin: Dock and Jetty Cathodic Protection (3 case studies) 05.08.2007 Overview Deepwater has redefined CP systems for large area harbor structures in the last 12 Months three large contracts have been secured to retrofit large area dock structures, each required a different solution. Each solution was tailored from our standard product inventory to fit the operational and economic requirements of each user. The Cathodic Protection technologies employed are all proven in applications for the offshore oil and gas industry. Project One: RetroBuoy Jr. Loading dock was hit by Hurricane which destroyed all topside systems. The original impressed current system was totally destroyed. Operator: Structure: Service: Location: Current Requirement: System Provided: Contract Value: South Riding Point Ltd. Bahamas Tee-Head Pier & Trestle – Tubular Steel Piles Petroleum Product Terminal Bahamas 1200 Amperes – 25 Years 6 x 200 Amps RetroBuoy Jr. Impressed Current Anode Arrays, Polatrak Cathodic Protection Monitoring System, Deepwater Universal Marine Transformer Rectifier Units, RetroClamp Cable Protection Systems $400,000.00 Project One: PIctures 1 de 3 27/11/2011 20:18 p.m. Dock and Jetty Cathodic Protection http://www.stoprust.com/tb2-dock-and-jetty-cathodic-protection.htm Project Two: RetroLink Loading dock was hit by Hurricane which destroyed all topside systems. The original impressed current system was totally destroyed. Operator: Structure: Service: Location: Current Requirement: System Provided: Contract Value: Bahamas Oil Refining Company Multiple Isolated Jacket and Dolphin Structures Crude Oil Loading Terminal Bahamas 2600 Amperes – 10 Years 154 RetroLink (Deep) Sacrificial Anode Systems each String rated 17 Amperes. Customer is able to effect installation at his own pace, using existing boats with no divers. $750,000.00 Project Two: PIctures Project Three: Raparound Anode and RetroBuoy The existing cathodic protection system was an impressed current system constantly under repair. The maintenance costs were constantly exceeding $250,000 per year. The challenges of ice and high flow/tide conditions as well as brackish water made most designs inadequate. Operator: Structure: Service: Location: Current Requirement: ALCAN (Aluminum Company of Canada) H-Pile Pier in Semi-Arctic Conditions – With Sheet Pile Bulkhead Section Aluminum Loading Berth Port Alfred – Quebec Canada 3800 Amperes – 20 Years 8 x 200 Ampere RetroBuoy, 40 x 50 Ampere Raparound Pile Mount Anodes. Two VSE Anodes (50 Ampere). Power Supplies for all anodes. Full POLATRAK DR2-CD Based Monitoring/Control System RetroBuoy systems provide bulk current from remote location. Raparound Pile Mount anodes cover shielding effects under pier. VSE Anodes for Sheet Pile Bulkhead. System Provided: Contract Value: $1,200,000.00 Project Three: PIctures (Raparound Anode) 2 de 3 27/11/2011 20:18 p.m. Dock and Jetty Cathodic Protection http://www.stoprust.com/tb2-dock-and-jetty-cathodic-protection.htm The Duncan W harf (Spring) A Raparound Pile Mounted Anode Project Three: PIctures (RetroBuoy Bouyant ICCP Anode Sled) One of the 8 Power Units One of the RetroBuoy Sleds. © 2010 Deepwater Corrosion Services Inc. Tel: (713) 983-7117 Fax: (713) 983 8858 All specifications subject to change without notice site by rubbaglove 3 de 3 27/11/2011 20:18 p.m.