VESSELSUltra Deepwater Drillship designed for drilling opera-tion down to 40,000 ft. (12,120 m) & in water depths to 10,000 ft. (3,048 m)Drillship Tungsten ExplorerThe Tungsten Explorer is an ultra deepwater, Tungsten Explorer Main Particularsdynamically positioned mobile offshore drilling Hull No. .......................................................................3615unit (Drillship). The primary areas of activities Model test ................................................................MARIN of the Drillship shall be in the Gulf of Mexico, Flag ......................................................................BahamasWest Africa and Brazil. The drillship has drilling IMO number ...........................................................9631735 Length (o.a.) ..............................................................238 mequipment on the topside with a continuous main Length (b.p.) ..............................................................230 mdeck and forecastle deck. Three engine rooms Breadth molded ...........................................................42 mwhich house six diesel engines (7,000 kW x 720 Depth molded to freeboard deck ...................................19 mrpm) are arranged aft in the hull. Thruster ma-Depth molded to upper deck .........................................19 mWidth of double skin, side: ...........................................6.6 mchinery spaces are arranged in engine rooms and Width of double skin, bottom ........................................2.7 min the forward machinery space of the hull, with Draft, scantling ............................................................13 meach space containing motors and controls for Draft, design................................................................12 mazimuth thrusters of 5,500 kW used to dynami-Tonnage ..............................................................68,000 gtDisplacement ....................................102,000 mt (operating) cally position or propel the drillship. While the Deadweight, design .................................65,000 metric tonsdrillship is equipped with a ship’s anchors for Deadweight, scantling .............................74,000 metric tonstemporary mooring, no spread mooring system Speed, service (85 %MCR output) ............................12 knotsis ? tted for station keeping. The hull contains no Bunkers, diesel oil .............................................9,400 cu. m.Water ballast ..................................................58,235 cu. m.permanent ballast.Daily fuel consumption, The “double” hull (i.e., inner bottom and wing Main engine only ...............................184 t/day @ 100% load tanks arranged) exhibits no sheer but has straight Classi? cation American Bureau of Shipping + 1A, (E), “Drillship”, camber on the outboard portion of its weather or *AMS, *ACCU, *CDS, *DPS-3, SH-DLA, UWILD, CRC.Main engine .............................6 x STX-MAN-B&W, 14V32/40main deck. A large moonpool is situated with its Output of each engine ...........................7,000 kW x 720 rpm center slightly forward of midships; a ? ap is ar-Propellers ......................................................6 x Rolls-Royceranged at its aft end to prevent wave slap in the Main engine driven alternators............6 x HHI HSJ7 1209-10Pmoonpool during transit. Emergency Generator Set ..............STX-MAN 7L27/38(engine)Cranes ..............................4 x Liebherr, Slewing Bearing typeAn accommodation house is situated inside and Special lifesaving equipment ..................Norsafe - 6 sets and above the forecastle; a helideck is located on top ...............................................................70 persons (95kg)of the house. The drilling equipment has been ar-Ballast control system ..............GE Power Conversion (Former ranged on top side area mostly. From fore to aft, Converteam)Water Ballast Treatment System .......PANASIA (700 m3/hr x 2)the modules are as follows: mud module for mud Complement .................................................................200 pump, sack storage, cement unit, liquid mud stor-Bow thrusters ....3 x Rolls-Royce, Aquamaster Model UUC 455age and auxiliary machinery, substructure with Output (each): ......................................................5,500 KWderrick, substructure buildings for shale shaker Stern thrusters ..3 x Rolls-Royce, Aquamaster Model UUC 455Output (each): ......................................................5,500 KWand BOP control and riser & well test platforms DP & Integrated Automation System ......GE Power Conversion for riser racking, ROV and well test equipment. (Former Converteam)A pipe rack is arranged on the roof of the mud Fire detection system ....................................................Tycomodule.Integrated bridge system ...........................................Furuno46 Maritime Reporter & Engineering News JANUARY 2014•MR #1 (42-49).indd 46 1/8/2014 10:02:42 AM