GSF Development Driller II - Transocean

1 These specifications are intended for general reference purposes only, as actual equipment and specifications may varybased upon subsequent changes, the contract situation and customer needs. All equipment shall be operated andmaintained at all times, in compliance with Transocean standard operating manuals, policies and procedures, and within itsstated operational limits or continuous rated capacity, in order to assure maximum operational Notice: This rig, its systems, components, and/or equipment in useon this rig, may be protected by one or more USand/or foreign Development Driller IIGeneral DescriptionDesign / Generation EXD Semisubmersible Friede & Goldman, Shipyard Jurong, SingaporeYear Entered Service / Significant Upgrades 2005 Classification ACC, ABS, A1, AMS, DPS-2 Flag VanuatuDimensions 375 ft. long x 288 ft.

2 Wide x 28 ft. deepDrafts ft. operating / ft. transitAccommodation 176 personsDisplacement 46,507 lt. operating / 32,804 lt. transitVariable Deck 15,432 kips operating / 11,023 kips transitTransit Speed up to 6 knotsMaximum Water Depth 7,500 ft. designed / 7,500 ft. outfittedMaximum Drilling Depth 37,500 SEMI-SUBMERSIBLED rilling EquipmentDerrickBailey, 228 ft. high, with 52 ft. long, 57 ft. wide baseHookload Capacity2,000,000 lbs. maximum ratedstatic hook load (combined)Drawworks(Main) NOV / Hitech AHD 1000 with 6 x 1150 hp electricmotors; 2,000,000 lbs ratedwith 2 inch drilling line(Aux) NOV / Hitech AHD 500 with 4 x 1150 hp electric motors;1,000,000 lbs rated with 1-3/4 inch drilling lineCompensator(Main) Active heave drawworks, see above(Aux) Active heave drawworks, see aboveRotary Table(Main) Varco RST-605, 60 inch hydraulic, 1,000 st.

3 Static.(Aux) Varco RST-495 49-1/2 inch, hydraulic, 500 st. Drive(Main) Hydralift HPS-1000 2E(AC) 1,000 st. capacity, with 2 xGEB AC 1,150 hp. motors, rated to 78,450 maximumcontinuous drilling torque(Aux) Hydralift HPS-500 E(AC) 500 st. capacity, with 1 x GEBAC 1,150 hp. motor, rated to 62,500 maximumcontinuous drilling torqueTubular Handling2 x Hydralift ARN-166 Iron Roughneck and 2 x Hydralift T2906-D1122-G0002 Bridge Racker pipe racking systemMud Pumps4 x National 14-P-220 triplex 7,500 psi pumps, each driven by 2x GEB-22A2 AC 1,150 hp. Mud SystemRated for 7,500 psiSolids Control2 x Swaco Gumbo-X primary scalper conveyer; 7 x Swaco BEM-600 cascading shale shakersPower & MachineryMain Power8 x Caterpillar 3612 5,100 hp diesel engines, each running 1 xABB AMG 0710 11,000 volts at 900 rpm Power1 Caterpillar 3516 2413 hp diesel engine rated 1,370 kW, 1,800rpm driving 1 x SR4B 1,825kW CapacitiesFuel Oil 20,290 bblLiquid Mud 7,050 bbls.

4 Active / 11,900 bbls. ReserveBase Oil 4,535 bblBrine 4,868 bblDrill Water 14,490 bblPotable Water 4,750 bblBulk Material (mud + cement) 27,395 Storage 5,200 sacksBOP & Subsea EquipmentBOP RamsHydril Compact 18-3/4 inch 15,000 psi. pressure capability; 6 xram preventer; (2 x doubles + 2 x singles).BOP Annulars2 x Hydril GX 18-3/4 inch 10,000 psi pressure capability annularpreventerBOP HandlingElevator with 400 mt capacity main hoists 2 x 100t auxiliarywinches service hoistsMarine RiserKvaerner Clip 21 in., min yield 80,000 psi, 75 ft. long per Buoyancy 54 in. ODTensioners12 x Hydralift Inverted riser tensioners, 250 kip each; (150 )DiverterVetco CSO 20 inch 500/1000 psi diverter with 16 in. flow lineTree HandlingHydralift 200 mt Xmas tree trolley with Hydralift 750 mt Xmastree skid cartsMoonpool132 ft. length x 25 ft.

5 WidthStation Keeping / Propulsion SystemThrusters8 x ABB Compact Azipod 4,300 hp, azimuthing nozzled fixedblade thruster (2 x per corner)DP SystemKonsberg Simrad SDPM DP-2+Mooring System8 Bodewes electric 1,150 hp drum winches with 8 x BridonDyform mooring lines consisting of 10,500 ft. of inch wireline and 8 x 3,240 ft. of inch stud link chain, with 8 x Vryhof Stevpris MK5 #1 & #22 x Leibherr MTC 6000-150 173 ft. boom 165 st at 71 ft. #31 x Hydralift 115 ft. boom 11st at 115 ft. radius InformationHelideckRated for M18 or EH101 helicopters, 88 ft. diameterRevision Date: 23 June 2014 For additional information please contact:TransoceanMarketing Department4 Greenway PlazaHouston, TX 77046, USAP hone: + 1-713-232-7500 Fax: + specifications are intended for general reference purposes only, as actual equipment and specifications may varybased upon subsequent changes, the contract situation and customer needs.

6 All equipment shall be operated andmaintained at all times, in compliance with Transocean standard operating manuals, policies and procedures, and within itsstated operational limits or continuous rated capacity, in order to assure maximum operational Notice: This rig, its systems, components, and/or equipment in useon this rig, may be protected by one or more USand/or foreign FOCUSEDDATA DRIVENPERFORMANCE ORIENTEDBOUNDLESSGSF Development Driller IIULTRA-DEEPWATER SEMI-SUBMERSIBLER evision Date: 23 June 2014