The Discoverer Deep Seas

February 23, 2021
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  • By Rig Lynx
  • Feb 23, 2021
  • Category : Video Vault
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Although retired, we wanted to share with you one of the most capable rigs to ever hit the water, the Discoverer Deep Seas

Enjoy

General Description:

Design / Generation: Transocean Enterprise class

Constructing Shipyard: Astano, Spain

Year Entered Service / Significant Upgrades: 2001

Classification: DNV +1A1

Flag: Marshall Islands

Dimensions: 835 ft. long x 125 ft. wide x 64 ft. deep

Drafts: 42 ft. operating / 39 ft. transit

Accommodation: 200 persons

Displacement: 111,830 st operating

Variable Deck: 22,046 st operating / 19,841 st transit

Transit Speed: Up to 12 knots

Drilling Equipment

Derrick: Dreco Dual Activity, 226 ft. high, with 80 ft. long, 80 ft. wide base. Hookload Capacity (Main) 2,000,000 lbs. gross nominal capacity (Aux) 2,000,000 lbs. gross nominal capacity

Drawworks: (Main): 2 x Continental Emsco EH-V5000; rated at 1,000 st with a 2 inch line. (Aux): 2 x Continental Emsco EH-V5000; rated at 1,000 st with a 2 inch line.

Compensator: (Main) Varco Crown Mounted Compensator CM-25-1000. (Aux) Varco Crown Mounted Compensator CM-25-1000.

Rotary Table: (Main) Varco BJ RST 605 with a 60-1/2 inch maximum opening, and rated to 1,000 st.

(Aux) Varco BJ RST 605 with a 60-1/2 inch maximum opening,  and rated to 1,000 st.

Top Drive: (Main) Varco TDS8S rated to 750 st with a PH-100 pipe handler, and a maximum continuous torque rating of 62,250  lbs. (Aux) Varco TDS8S rated to 750 st with a PH-100 pipe handler,  and a maximum continuous torque rating of 62,250 lbs.

Tubular Handling: Varco PRS-5 and PLS-5 pipe racking system, and Varco AR  3500 Iron Roughneck.

Riser Feed: ABB Vetco HY-3 1,000 st hydraulic

Mud Pumps: 4 x National 14-P-220 triplex pumps, each driven by 2 x GE 752 traction motors.

HP Mud System: Rated for 7,500 psi

Solids Control: 8 x Brandt LCM-2D/CM-2 linear motion shale shakers.

Power & Machinery

Main Power: 4 x Wartsila18V32 LNE 9,772 hp diesel engines, each driving  ABB AC generators. 2 x Wartsila 12V32 LNE 6,515 hp engines  driving ABB AC generators.

Emergency Power: 1 x Wartsila 6R32 LNE diesel engine rated at 3,257 hp and  driving an ABB 480V AC generator.

Power Distribution: 18 Baylor/Cegelec SCR system generator protection.

Storage Capacities: Fuel Oil 33,252 bbl, Liquid Mud 20,000 bbl, Base Oil 125,000 bbl, Brine 125,000 bbl Drill Water 12,321 bbl, Potable Water 7,062 bbl, Bulk Material (mud + cement) 32,000 cu.ft., Sack Storage 16,000 sacks

BOP & Subsea Equipment

BOP Rams: 3 x Hydril 18-3/4 inch 15,000 psi Compact Double Ram Preventer

BOP Annulars: 1 x Hydril preventer. GX Annuflex 18-3/4-inch 10,000 psi annular

BOP Handling: Subsea Ventures Inc. BOP skid system comprised of 4 x BOP/Auxiliary skidding carts rated to 350 st each.

Marine Riser: Vetco HMF –F 21 inch OD and 75 ft. long joints; and 4-1/2 inch ID 15,000 psi choke and kill lines

Tensioners: 6 x Hydralift 400 st direct acting cylinders with a 50 ft. stroke length.

Diverter: Vetco CSO with a 60 inch bore and rated to 500 psi.

Moonpool: 72 ft. length x 30 ft. width.

Station Keeping / Propulsion System

Thrusters: 6 x Rolls Royce Aquamaster 7,000 hp fully azimuthing.

DP System: Kongsberg Maritime Triple Redundant SDP 32 system

Cranes

Cranes: 2 x 75 MT and 2 x 65 MT Hydralift electrohydraulic knuckle boom cranes, 6 m to 45 m lift radius.

Other Information

Helideck: Rated for Chinook 234 helicopters

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