Deepwater Discovery

About this Project

Ultra Deepwater Drillship General Description Design / Generation ................................... Samsung/Reading & Bates Double Hull DP Constructing Shipyard ................... Samsung Heavy Industries Co., Ltd., South Korea Year Entered Service / Significant Upgrades ............................................. 2000 / N/A Classification ............................................................................. ABS, +A1, Drilling Unit Flag ................................................................................................................... Vanuatu Dimensions ....................................................... 746 ft. long x 137 ft. wide x 64 ft. deep Drafts .......................................................................... 39.4 ft. operating / 27.9 ft. transit Accommodation ......................................................................................... 140 persons Displacement ............................................................................. 108,544.8 st operating Variable Deck Load ............................................. 22,046 st operating / 22,046 st transit Transit Speed .......................................................................................... up to 10 knots Maximum Water Depth .................................... 10,000 ft. designed / 10,000 ft. outfitted Maximum Drilling Depth ................................................................................ 30,000 ft. Drilling Equipment Derrick Dreco, 210 ft. high, with 95 ft. long, 75 ft. wide base. Hookload Capacity 2,000,000 lbs. static hook load Drawworks Continental Emsco Electrohoist V, 4 x GE 752 high output electric motors; 5,000 hp total, 2 inch drilling lines. Compensator Shaffer CMC-25-1000DA, 25 ft. stroke, 1,000,000 lbs. compensating, 2,000,000 lbs. locked Rotary Table Continental Emsco T-6050 60.5 inch hydraulic, 1,120 st. with 55,000 ft.-lbs. of continuous torque Top Drive Varco TDS-4S, 750 ton capacity, with 1 x GE 752 motor, rated to 50,900 ft.-lbs. continuous drilling torque in low gear. Tubular Handling 2 x Varco BJ PRS-6i (range 3 capable) pipe racking system. Riser Handling Varco RHS-2 Riser Handling System and SMST 50 ton Gantry Crane. Mud Pumps 4 x Continental Emsco FC-2200 2,260 hp Triplex pumps, each driven by 2 x GE-752 RBI high torque Shunt Wound traction motors. HP Mud System Rated for 7,500 psi Solids Control 6 x Brandt LCM-3D/CM-2 Cascade shale shakers Power & Machinery Main Power 4 x Wartsila 8L46B diesel engines rated at 7,800 kW, 514 rpm, each driving 1 x 9,270 kVA ABB HSG 1250 P14 generator 2 x Wartsila 6L46B diesel engines rated at 5,850 kW, 514 rpm, each driving 1 x 6,950 KVA ABB HSG 1120 LR14 generator Emergency Power 1 x MAN D284 DLE diesel engine rated 400 kW, 1,800 rpm driving 1 x Newage International HC-M534-02 generator. Power Distribution 3 X 11 kV powered buses, 2 x generators and 1 x thruster per bus. 3 X 11 kV unpowered buses, 1 thruster per bus. Bus-ties are available to combine any of the six buses. Storage Capacities Fuel Oil ...................................................................................................... 30,180 bbls. Liquid Mud ...................................................... 6,000 bbls. Active / 9,420 bbls. Reserve Base Oil ........................................................................................................ 8,800 bbls. Brine ............................................................................................................. 8,800 bbls. Drill Water ................................................................................................... 17,610 bbls. Potable Water ............................................................................................... 8,800 bbls. Bulk Material ............................ 8,000 cu.ft bentonite + 16,000 barite + 18,000 cement Sack Storage ............................................................................................ 10,000 sacks BOP & Subsea Equipment BOP Rams Cameron Type TL 18-3/4 inch, 15,000 psi WP, 5 Ram Preventer (1 x TL single, 2 x TL double). BOP Annulars Cameron DL Dual Annular Preventer, 18-3/4 inch, 10,000 psi WP BOP Handling SMST BOP crane 2 x 160 ton main hoists, and 2 x 25 ton service hoists. SMST BOP Guidance System, SMST BOP Transporter rated at 340 tons. Marine Riser ABB Vetco HMF 21.25 inch OD (19.626 in ID), 2.5 million pound type F, 90 ft. long per joint. Tensioners 8 x Shaffer dual unit riser tensioners, 200 kpis each; maximum line travel 50 ft. with 2-1/8” in wire rope. Diverter 60.5 500 PSI Hydril FS 500 21-1/4 inch x 60 inch diverter with 16 inch flow line Tree Handling SMST BOP Crane 320 tons and SMST BOP Transporter 340 tons, SMST Auxiliary Moon Pool Transporter rated at 150 tons Moonpool 52.48 ft. length x 40.9 ft. width. Station Keeping / Propulsion System Thrusters 6 (3 at forward, 3 at aft) Aquamaster UUC7001 5,500 kW Azimuthing with fixed propeller blades. DP System Nautronix ASK5003 triple redundant computer DPS-3 x DGPS, 2 x RS925 HPR Cranes Pedestal Cranes: 2 x Amclyde Model 35000 with 120 ft. booms and 1 with x 80 Kips, 1 x Amclyde Model 35000 x 140 ft. x 80 Kips, 2 x Amclyde x Model 20000 x 120 ft. booms x 40 Kips AHC Subsea Crane N/A. Other Information Helideck Rated for S-92N or SP322L helicopters. 74 ft. x 74 ft.

Additional Info

Client: 

Transocean

Transocean helps customers find and develop oil and natural gas reserves. Building on more than 50 years of experience with the highest specification rigs, our employees are focused on safety and premier offshore drilling performance.

The company's ordinary shares are traded on the New York Stock Exchange under the symbol "RIG" and on the SIX Swiss Exchange under the symbol "RIGN."