ATLANTIC STAR

The Atlantic Star is an anchor moored column stabilized semi-submersible drilling rig constructed in Compagnie Francaise d’Enterprises Métalliques, in France. The rig follows the Pentagon design, and is equipped with high-tech devices that ensures a maximum uptime and safer operations while minimizing emissions, discharge and human interface. Atlantic Star can drill wells up to 21,320 ft. in water depth up to 2,000 ft.

TeChNICAL SpeCIfICATIoNS

GEnErAlname: Atlantic StarFlag: BahamasYear Built (keel laid): 1976Year Upgrade : 2007/2011Builder: Compagnie Française d´Enterprises Métalliques (C.F.E.M.)Design: Pentagone Classification : American Bureau of Shipping -ABS

DESIGn OPErATIOnS COnDITIOnSMaximum Water Depth: 2,000 ft.Minimum Water Depth: 120 ft.Drilling Depth Capacity: 21,230 ft.

MAXIMUM OPErATInG/EnVIrOnMEnTAl COnDITIOnSVariable Deck load: 2,100 metric tonVariable Total load: 4,535 metric tonWind Speed: 120 knots gustWave Height (maximum): 95 ft.Current Speed: 2,5 knots

MOOrInG SYSTEMTen Anchor Wire: API specification 2p, 2 3/4´´ x 1,300 mTen Anchors: 15 ton Mk5 type Vryhof Stevpris anchorsTen Winch Anchors: Brissoneau & lotz Marine, 120 HPTractions Capacity: nominal 125 ton / maximum 300 ton

DErrICKnOV Derrick, nominal Hookload 1,300,000 lb

MOOn POOlMoon Pool Access5,0 m x 5,5 mMoon Pool Size4,5 m (l) x 6,0 m (W) x 7,0 m (H)

DrIllInG EQUIPMEnTrotary Table: Continental-Emsco T-4950Top Drive: national Model PS2-750 ATraveling Block: Gardner Denver 55T-600, 550 tonMaster Bushing: Varco MPCH w/pins

Drawworks: nOV 1625-UDBE Drawworks PackageDrilling line: Diam. 1 1/2´´, type 6 x 19 IWrCElectric Motors Drawworks: 03 x GE-752/1130HP/750VDCElectric Magnetic Brake: Elmagco, Model 7838Drill Sting Compensator: rucker – Shaffer, Model 25/600, 25ft Stroke; compensating features: 600,000 lb; closed-mechanic locked: 1,500,000 lb; fully extended: 1,000,000 lb. riser Tensioner: rucker – Shaffer, 4 unit, 60,000 lb and4 unit 80,000 lbGuide Tensioner: rucker – Shaffer, 4 unit, 16,000 lb eachMud Pumps: 04 Triplex Gardner Denver- Model PZ -11,1600 HP, 03 units- Model PZ-7, 800 HP, 01 unitShale Shakers: 3 Derrick, Model FlC 513Desander Derrick, Model DEr 09000 with 3 hydrociclones,500 GPMDesander Derrick, Model DEr 10000 with 20 hydrociclones,500 GPM

BlOWOUT PrEVEnTEr (Trimmed for H2S Service)Two double ram BOP Cameron 18 3/4´´ x 10,000 psi WP,Model “U”, clamp hup T/BHydraulic connectors: one Collet Connector Cameron 18 3/4´´,AX ring and one Vetco connector type “E”, stump H4, VX18 3/4´´Annular BOP nl Shaffer, Spherical double, 18 3/4´´x 5,000 psiHydraulic Unit: Cameron w/two electric pumps 23,8 GMP,3,000 psi, two air pumps C1W, Model B-7 – 50, 4 GMP-3,000 psi, fabricated as per API rP 53-1984, remote panelrig-floor and Tool-pusher office

MArInE rISEr SYSTEMriser Shaffer FT-E (main tube: 21” OD x 0,625”; choke andkill: 5” OD x 3” ID 15k; booster line: 5” OD x 4” ID 5k)Flex-joints: reagan, type ball-joint Dr-J-nOH 24´´, 10 Gr.And Flex-joint Cameron f/ “lMrP”, nD 18 3/4´´.Telescopic joint Shaffer FT-E, 64,27 ft., 55 ft. strokerunning tools: 2 riser running tools, 1 Spider Hyd SplitHandling.

ElECTrIC SYSTEMS AnD DIESEl MOTOrSDiesel Motors: 4, Model 7l27/38, MAn B&W Diesel, 3,140HP / 720 rpmMain Generator: 04, Model T1055VUT, Maker nationalAilwell Baylor, KVA 2,200, 600 VAC-60 Hz

CrAnESMain Cranes: 1 Seatrax, Model S9022, load capacity 40 ton,limit of Operation 27,4 m, 50 º; 01 Haullotte-Chambery, ModelH-450, load capacity 30 ton, limit of Operation 9 m, 79 º.Support Cranes: 2 Haullotte-Chambery, Model H-75, loadcapacity 12 ton, limit of Operation 9 m, 82 º.

CHOKE & KIll MAnIFOlD10,000 WP manifold with two Hydraulic and manual chokes, 2 1/16´´ & 3 1/16´´ manual gates values and remote control. Trimmed for H2S service.

rIG STOrAGE CAPACITIESPipe rack: 780 metric ton (7,266 sq.ft.)Cellar Deck: 150 metric ton (3,875 sq. ft.)Marine Store: 50 metric ton (750 sq.ft.)Spare Parts Store: 55 metric ton (1,184 sq.ft.)8 Bulk Tanks: 8,000 cu. ft.Mus and Cement Sacks room: 3,200 sacks / 200 metric ton(3230 sq.ft.)2 Fuel Oil Tank: 600 m³1 Potable Water Tanks: 552 m³2 Drill Water Tanks: 812 m³Mud Tanks (5 mud tanks plus Slug Pit): 2,635 bbl

SPECIAl FEATUrESrOV owned by Subsea 7Inmarsat Mini-M Unit.Helideck for S-61 (Bell 212 / Bell 412 in Brazil).Accommodation for 110 people are provided with galley, training and recreations areas, and sick bay.