INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org THE OIL SEA HARVESTER SYSTEM : AN INTEGRATED CONCEPT OF TOOLS ON A DEDICATED AND ADAPTED PLATFORM

INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org THE SITUATION ØLarge oil spills at sea Ødifficulty to act rapidely Ødifficulty to operate in a rough sea

INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org THE NEED  A vessel capable to harvest oil at sea in quite harsh conditions Ø A vessel that can be on site quite rapidely ØA multi-purpose vessel worth to be maintain at sea all year long

INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org AN INNOVATIVE ANSWER : THE PLATFORM A TRIMARAN STRUCTURE  Central hull : slender monohull  Side hulls : swath type ADVANTAGES Monohull  Course stability  Reduced pitch motion  High payload Swath  Roll stability

INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org OSH PLATFORM : FIRST CONCEPT

INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org OSH platform : Preliminary design within European funded project Some preliminary work at the beginning of the project based on updated specification for the vessel (WP2) allowed to :  adapt the general dimensions of the ship to the project (displacement, storage capacities, …)  eliminate some drawbacks of the original conceptual design  facilitate the integration of the tool carriage and of the oil recovery tools  improve the general performances : nautical qualities of the platform, efficiency of the oil recovery tools in rough weather

INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org OSH platform : Preliminary design Major modifications were :  lengthened main hull  Side hull : round section fitted outside the channel for easier tool carriage integration  Total displacement : increased to tons, according to the updated weight evaluation.  Transverse stability: GM increase from 1 m to 2 m, according to stability rules requirements  Move accommodations forward in order to have more room on the aft part dedicated also to complementary missions

INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org OSH platform : modifications

INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org OSH PLATFORM : MAIN CHARACTERISTICS LENGTH m ( +10 ) WIDTH36.00 m ( + 4 ) FULLY LOADED DISPLASMENT12000 t ( ) MAXIMUM DRAFT 7.20 m PODS PROPULSION 2 X 13 MW 26. MW TRANSIT SPEED 25 kn RECOVERY SPEED1 to 3 kn HARVEST CAPACITY 6000 t RANGE 30 j DISPONIBILITY AT SEA 350 days / year OPERATIONAL WEATHER LIMIT Sea state 6/7

INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org UP TO DATE OSH VESSEL

INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org AN INNOVATIVE ANSWER : THE HARVESTING CONCEPT The oil slick penetrates into the two chanels between the two sides and the central hull These chanels are well protected from the external rough weather The surface of the oil slick is calmed by : – the narrowness of the chanels – The oil viscosity The residual mono directional sea state into the chanels is reduced In that choppy sea it becomes possible to recover the oil slick with the proper tools fitted on two floatable tool carriages

INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org TOOL CARRIAGE

INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org OIL SLICK RECOVERY TOOLS These tools may be fitted according to the product viscosity They are modular built types They are fitted on the two floatable carriages They are stored on board They are chosen to match with the specific need

INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org TOOL CARRIAGE AND A TOOL

INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org COMPLEMENTARY MISSIONS Such a vessel would be able to carry out the following missions : The permanent presence at sea 350 d/y Search and rescue Maritime surveillance Solid waste recovery Chemical products recovery Fire fighting Offshore operations which require a dynamical positioning by high sea state 6/7 : Pumping from wrecks Exploitation of submarines and robots Etc

INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org CONCLUSION This concept of platform and associated tools dedicated to oil recovery but also complementary missions is to allow to : Operate even in high sea state Give assistance to ships in distress Arrive very quickly on the catastrophe spot Recover efficiently the oil slicks by using the more efficient tool And so decrease drastically the consequences of the oil slicks

INTERNATIONAL WORKSHOP ON MARINE POLLUTION CONTROL 8 th June 2006, Athens (GR) OIL SEA HARVESTER TST4-CT ww.osh-project.org OIL SEA HARVESTER