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01.11.14 15:28
SDS08 marine diving vessel "Stolniy Grad Yaroslavl" participated in the fourth unique towing operation


According to press-service of FBE "Marine Salvage Service of Rosmorrechflot", multifunctional SDS08 marine diving vessel (MDV) "Stolniy Grad Yaroslavl" from 19 till 29 October, 2014 participated in the fourth unique towing operation concerning central technological platform's transportation from Astrakhan port to the place of installation at oilfield named for V. Filanovskiy. The work was carried out due to the Contract for diving support during objects' transportation and installation at the oilfield, concluded between the FBE "Marine Salvage Service of Rosmorrechflot" and the Italian company SAIPEM. Complications of the concluding towing was characterized by deterioration of situation due to autumn weather conditions in the Caspian Sea with strong north off-shore winds, decreasing of operational draught for convoy's vessels at Volga-Caspian Marine Canal, wind and seas increasing, decreasing of air temperature, decreasing visibility and also appearing sediments even as snow. That's why it is not surprising, that towing time was 10 days while total length of the route from the Astrakhan port to oilfield is about 240 km.
 
Flagship of diving fleet of Caspian branch of FBE "Marine Salvage Service of Rosmorrechflot" SDS08 "Stolniy Grad Yaroslavl" participated in all four towing operations of drilling platform elements. She ran at the head of convoy ensuring safety of convoy's movement. Crew members of the vessel fulfilled the set task successfully.
 
SDS08 marine diving vessel "Stolniy Grad Yaroslavl" was built at Yaroslavl Shipyard in 2010 due to order of FSUC "State Customer Management of Maritime Transport Development Programs" of the Federal Agency of Maritime and River Transport of the Russian Federation.
 
Class design of SDS08 prj. was made by Marine Engineering Bureau, working and technological documentations were designed by Petrobalt Design Bureau.
 
SDS08 marine diving vessel has Ice 2 class, inclined stem and transom aft end, long forecastle, deckhouse located fore. Vessel also has engine room located aft, diesel main engines, two controllable-pitch propellers and bow thruster. Her principal dimensions are as follows:
 
Length overall is 38.35 m;
Length between perpendiculars is 36.35 m;
Breadth overall is about 7,92 m;
Breadth (due waterline) is 7.70 m;
Design draught is 2.35 m;
Full speed is 12 kn.;
Economical speed is 8 kn.;
Main engines capacity is 2 x 442 kW;
Autonomy is 5 days.
 
Russian Maritime Registry of Shipping class is of KM Ice 2 R2 AUT3-C OMBO SDS>100.
 
Project considerably differs from existing similar vessels:
 
1. Diving equipment, mounted on vessel, allows to carry out diving and underwater works on depth till 100 m. There are no analogues of such equipment at existing vessels that are operated by State Maritime Salvage Department of RF.
 
2. Vessel can carry out fire extinguishing on other vessels and floating objects using two mechanical-foam stream nozzles.
 
3. Vessel is equipped by tug winch that allows to carry out tug functions.
 
4. Vessel will provide oil spill response functions if boom and skimmer are placed onboard.
 
5. Vessel's characteristics and special equipment provide carrying out of diving salvage operations during sea state up to 3, and vessel can sail to the salvage place while waves' height is 7 m.
 
6. Two main high-speed engines with capacity of 442 kW each provide required vessel's running qualities, work to the variable-pitch propellers. Bow thruster with capacity of 120 kW is mounted for vessel's keeping at place of operational works.
 
7. Up-to-date remote-controlled underwater apparatus allow to inspect of a sea-bottom, underwater part of ships' hull and rudder propellers of vessels, underwater part of waterside structures on depth till 100 m.
 
8. Equipment for underwater welding on depth till 25 m and underwater cutting on depth till 100 m is used for salvage operations, repair of underwater part of vessels, repair of hydraulic structures, carrying out of rescue operations. In addition, cargo lifting equipment allows to lift objects of weight till 2.0 t from depth till 100 m.
 
9. Vessel carries out water pumping from wrecking vessel's compartments and also pontoon air blow during participation in re-floating.
 
Diving equipment consists of:
 
• pressure chamber for 4 divers;
• diving half-cone with control board;
• diving equipment with SUPERLITE helmet and DESCO ventilate helmet;
• diving equipment of universal "dry" type;
• divers' water-heater facilities;
• communication facilities;
• underwater illumination facilities;
• underwater television;
• underwater welding/cutting;
• hydraulic tools;
• pumping facilities;
• soil man facilities;
• remote-controlled underwater apparatus;
• diving ladder.
 
Thereby, unique combination of equipment mounted on vessel, and also high-powered power plant allow to carry out almost any specialized works related to diving-technical works on depth till 100 m. In addition vessel can carry out fire extinguishing on other vessels using two mechanical-foam stream nozzles with capacity of 180 cub.m. per hour and carry out tug functions (ground-mooring-tug winch with force of 7 tons is mounted aft), pump water out from compartment of wrecking vessel, participate into oil spill operations. Such combination of functions is unique for vessel with length of 38 m only.
 
Keel of the lead SDS08 vessel "Stolniy Grad Yaroslavl" (building No. is 201) was laid down on 28.08.2009. Vessel was launched on 12.08.2010. She was accepted for operation on 25.10.2010.
Keel of the second SDS08 vessel "Rostov Velikiy" (building No. is 202) was laid down on 09.03.2010. She was launched on 21.04.2011 and accepted for operation on 30.05.2011.
Keel of the third SDS08 vessel "Uglich" (building No. is 203) was laid down on 16.03.2010. She was launched on 24.05.2011 and accepted for operation on 07.08.2011.
Keel of the fourth SDS08 vessel "Rybinsk" (building No. is 204) was laid down on 09.08.2011. She was launched on 19.06.2012 and accepted for operation on 15.08.2012.