PROSERV OFFSHORE PIPELINE REPAIR – CASE STUDIES Workingexamples ofourpipeline repairprojectsfrom aroundtheworld. www.proserv-offshore.com email us at: [email protected] Our specialist tools for pipeline repair include: • Seabed Dredging • Protective coating removal – to safely remove all coating materials including concrete weightcoat, epoxy and bitumen, even on live pipelines. • Cold cutting solutions – with many options available this is adaptable depending on the shape, diameter or challenges of the project. Project Histories Proserv Offshore’s project history for underwater pipeline repair spans the globe from the North Sea to the Gulf of Mexico, from offshore China to the Caribbean: • 50mm weightcoat removal and underlying cold tar removal on 28 inch pipeline for Shell Brunei, 2007. Location – Brunei • Coating removal on 30-inch pipeline cased in 65mm of weightcoat and underlying fusion bonded epoxy. ExxonMobil Sage Hot Tap project for Acergy, 2007 & 2008. Location - North Sea, UK • Coating removal on 32-inch pipeline cased in 65mm of weightcoat and underlying fusion bonded polyethylene and bitumen encased field joints. Shell Tampen Hot Tap project for Acergy, 2007. Location - North Sea, UK • Removal of Marine Growth and 30mm thick neoprene coating from an existing Drill Cuttings Caisson from +1m to -5m for the installation of a repair clamp. A specific tool was designed to meet the reduced clearance between nearby caissons and included an innovative rotating nozzle for increased cleaning area. Shell Brent Bravo & Brent Charlie for Sigma 3, 2007 & 2008. Location - North Sea, UK PROSERVOFFSHOREARE WORLDleadersinthedesign andengineeringofbespoke subseatooling.Withinourrange ofequipmentarethetoolsand provenmethodologiesrequiredto conductpipelinerepairprojectsor interventionoperationsanywhere intheworld.Oursystemsand procedurescollectivelycaterforthe rangeofpipelinediameterscurrently typicalwithinthesubseaindustry, however,ourtoolingsolutionscan beadaptedforanyuniqueprojects. • Coating removal on 36-inch pipeline cased in 80mm of weightcoat and underlying fusion bonded epoxy for wet buckle repairs. Damaged sections then removed using JetCut water abrasive cutting system. NGC BUD for Stolt Offshore, 2006. Location – Trinidad. • Separation of Flow-line flanges from the Subsea Tree spool piece with a Proserv Offshore designed for purpose flange cutting system. ROV deployable the system ensured no damage was done to either of the flange faces. Elang Kakatua Repair for Fugro, 2007. Location - East Timor Sea, Indonesia. • Decommissioning of 50-inch polyethylene pipeline with 4-inch wall thickness. Newmont Gold, 2008. Location - Indonesia. Cold Cutting Solutions Seabed Dredging Coating Removal Systems