Deepwater Navigator

About this Project

Deepwater Drillship General Description Design / Generation ............................................................................. Earl & Wright Constructing Shipyard ........................................................................ Mitsui, Japan Year Entered Service / Significant Upgrades ................................ 1971/1999,2011 Classification ................................................................................... DNV 1A1, IMO, Flag .................................................................................................. Marshall Islands Dimensions ..................................................... 548 ft. long x 87 ft. wide x 41 ft. deep Drafts ............................................................................................... 30 ft. at load line Accommodation .................................................................................... 130 persons Displacement ............................................................................. 27,487 st operating Variable Deck ................................................. 27,935 st operating / 27,935 st transit Transit Speed ....................................................................................... up to 8 knots Maximum Water Depth ................................... 7,218 ft. designed / 7,218 ft. outfitted Maximum Drilling Depth ............................................................................ 30,000 ft. Drilling Equipment Derrick Single National Dreco API 4F, 185 ft. high, with 40 ft. x 40 ft. base. Hookload Capacity 1,500,000 lbs. gross nominal capacity. Drawworks National Oilwell E-3000 HP 3 x GE 752R-DC electric motors; 800 HP with a maximum rated pull of 1,325,000 lbs with 14 x 1-3/4 inch lines strung. Compensator Rucker-Shaffer DSC 25/800, with a 25 ft. stroke and 800 ton with capacity locked. Rotary Table Continental Emsco T 6050-60; 60-1/2 inch opening, hydraulic with a capacity rating of 882 st. Top Drive Varco TDS 4S, 650 st capacity, with 1 x GE 752-DC motor, rated to 45,000 ft.-lbs continuous drilling torque in low gear. Tubular Handling Horizontal pipe racking system Pipe Master, rated for 220 stands of 5 inch drill pipe. Riser Feed 1 x RHS 250-80 rated for 25 st from SMST for 21 inch OD x 80 ft. riser joints. Mud Pumps 3 x Emsco FB-1600 1,600 HP triplex pumps, each driven by 2 x GE 752 traction motors. HP Mud System Rated for 5,000 psi Solids Control 4 x Axiom AX-1 Elliptical Motion, direct drive shale shakers. Power & Machinery Main Power 8 x EMD E16-645-E9 MD diesel engines rated at 2,237 kW, at 900 rpm, each driving 3,250 kVA EMD AB-21-24 generators. Emergency Power 1 x GM Detroit Allison 10V-92TA diesel engine rated at 706 kW, at 1,800 rpm and driving a New Age HCM 634G generators. Power Distribution 8 x Westinghouse ASL AC distribution. Storage Capacities Fuel Oil .................................................................................................. 15,869 bbls. Liquid Mud ................................................. 1,288 bbls. Active / 1,223 bbls. Reserve Base Oil ................................................................................................... 2,346 bbls. Brine ........................................................................................................ 1,761 bbls. Drill Water .............................................................................................. 18,990 bbls. Potable Water .......................................................................................... 3,032 bbls. Bulk Material ............................................................... (mud + cement) 17,880 cu.ft. Sack Storage .......................................................................................... 3,000 sacks BOP & Subsea Equipment BOP Rams Cameron 18-3/4 inch 15,000 psi pressure capability; 5 x ram preventer. (2 x ST doubles and 1 x ST single) BOP Annulars 1 x Cameron AX 18-3/4 inch 10,000 psi pressure capability annular preventer. BOP Handling National Oilwell / Dreco Drilling Structures BOP Crane rated at 385 st capacity. Marine Riser ABB-Vetco Gray MR-6E 21 inch OD API 5 grade X80, 80 ft. long per joint with a riser buoyancy of 49 inch OD. Tensioners 12 x Shaffer riser tensioners rated at 80 st each and with a maximum stroke of 12.5 ft. using a 2.25 inch wireline. Diverter Hydril FS-21 21 inch OD rated at 500 psi with 1 x 12 inch flow line. Tree Handling 1 x Dreco Drilling 385 st system. Moonpool 30 ft. length x 29 ft. width Station Keeping / Propulsion System Thrusters 4 x (2 x forward and 2 x aft) Holland Roer Propeller, retractable; azimuthing 1,490 kW rated and 5 x fixed Pleuger/Baylor pod thrusters; DP System L3 NMS 6000 DPS class II dual redundant system; Acoustic beacon system x 2, DGPS x 2, single angle spot beam, Inmarsat, XP and HP corrections. Cranes Cranes 2 x 80 st Amclyde Model 35000 120 ft. x 80 kips at 30 ft. and 1 x Bucyrus Eyrie MK60 80 ft. boom length and rated to 42 kips at 15 ft. Other Information Helideck Rated for Sikorsky S-92N helicopters. Other N/A

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."