Drillship Profile: Tungsten Explorer

By Maritime Reporter & Engineering News
Tuesday, January 28, 2014
Ultra Deepwater Drillship designed for drilling operation down to 40,000 ft. (12,120 m) & in water depths to 10,000 ft. (3,048 m)

The Tungsten Explorer is an ultra deepwater, dynamically positioned mobile offshore drilling unit (Drillship). The primary areas of activities of the Drillship shall be in the Gulf of Mexico, West Africa and Brazil. The drillship has drilling equipment on the topside with a continuous main deck and forecastle deck. Three engine rooms which house six diesel engines (7,000 kW x 720 rpm) are arranged aft in the hull. Thruster machinery spaces are arranged in engine rooms and in the forward machinery space of the hull, with each space containing motors and controls for azimuth thrusters of 5,500 kW used to dynamically position or propel the drillship. While the drillship is equipped with a ship’s anchors for temporary mooring, no spread mooring system is fitted for station keeping. The hull contains no permanent ballast.
The “double” hull (i.e., inner bottom and wing tanks arranged) exhibits no sheer but has straight camber on the outboard portion of its weather or main deck. A large moonpool is situated with its center slightly forward of midships; a flap is arranged at its aft end to prevent wave slap in the moonpool during transit.
An accommodation house is situated inside and above the forecastle; a helideck is located on top of the house. The drilling equipment has been arranged on top side area mostly. From fore to aft, the modules are as follows: mud module for mud pump, sack storage, cement unit, liquid mud storage and auxiliary machinery, substructure with derrick, substructure buildings for shale shaker and BOP control and riser & well test platforms for riser racking, ROV and well test equipment. A pipe rack is arranged on the roof of the mud module.



Tungsten Explorer Main Particulars
Hull No.    3615
Model test     MARIN
Flag    Bahamas
IMO number    9631735
Length (o.a.)    238 m
Length (b.p.)    230 m
Breadth molded    42 m
Depth molded to freeboard deck    19 m
Depth molded to upper deck    19 m
Width of double skin, side:    6.6 m
Width of double skin, bottom    2.7 m
Draft, scantling    13 m
Draft, design    12 m
Tonnage    68,000  gt
Displacement    102,000 mt (operating)
Deadweight, design    65,000 metric tons
Deadweight, scantling    74,000 metric tons
Speed, service (85 %MCR output)    12 knots
Bunkers, diesel oil    9,400 cu. m.
Water ballast    58,235 cu. m.
Daily fuel consumption,
Main engine only    184 t/day @ 100% load
Classification     American Bureau of Shipping + 1A, (E), “Drillship”, *AMS, *ACCU, *CDS, *DPS-3, SH-DLA, UWILD, CRC.
Main engine    6 x STX-MAN-B&W, 14V32/40
Output of each engine    7,000 kW x 720 rpm
Propellers    6 x Rolls-Royce
Main engine driven alternators    6 x HHI HSJ7 1209-10P
Emergency Generator Set    STX-MAN 7L27/38(engine)
Cranes    4 x Liebherr, Slewing Bearing type
Special lifesaving equipment     Norsafe - 6 sets and
    70 persons (95kg)
Ballast control system    GE Power Conversion (Former Converteam)
Water Ballast Treatment System    PANASIA (700 m3/hr x 2)
Complement     200
Bow thrusters    3 x Rolls-Royce, Aquamaster Model UUC 455
Output (each):     5,500 KW
Stern thrusters    3 x Rolls-Royce, Aquamaster Model UUC 455
Output (each):     5,500 KW
DP & Integrated Automation System    GE Power Conversion (Former Converteam)
Fire detection system    Tyco
Integrated bridge system     Furuno

(As published in the January 2014 edition of Maritime Reporter & Engineering News - www.marinelink.com)

Maritime Reporter September 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Energy

Weak Oil Threatens US Export of LNG

Plunging global oil prices may turn hopes for cheap liquefied natural gas supplies from the United States into a costly disappointment for Asian buyers who have

Renewable Energy: Schottel Tidal Turbines Ready For Use

In the last months Schottel  successfully tested its hydrokinetic turbines in Strangford Lough, Northern Ireland. The full-scale tests included 260 operating hours under realistic conditions.

Statoil: New Oil in the Grane Area

Statoil has together with PL169 partners proved new oil resources in the D-structure in the vicinity of the Grane field in the North Sea.   Well 25/8-18 S, drilled by the rig Transocean Leader,

Marine Power

B COOL Acquires MEMAC

With the acquisition of MEMAC, B COOL A/S now offers customers one entry to multiple maritime systems – both refrigeration solutions and monitoring of the engine

Singapore’s MPA Discuss LNG Bunkering

The Maritime and Port Authority of Singapore (MPA), Antwerp Port Authority, Port of Rotterdam and Port of Zeebrugge participated in a Liquefied Natural Gas (LNG)

Mitsubishi Super Skiving System

Mitsubishi Heavy Industries, Ltd. (MHI) has completed development of the "Mitsubishi Super Skiving System" for machining internal gears with high speed and outstanding precision.

Marine Equipment

B COOL Acquires MEMAC

With the acquisition of MEMAC, B COOL A/S now offers customers one entry to multiple maritime systems – both refrigeration solutions and monitoring of the engine

TRIYARDS Buys into Aluminium Shipbuilding Expertise

TRIYARDS Holdings Limited, an offshore vessel fabrication and engineering solutions provider to the oil and gas (O&G) industry, has added new capabilities, products

Singapore’s MPA Discuss LNG Bunkering

The Maritime and Port Authority of Singapore (MPA), Antwerp Port Authority, Port of Rotterdam and Port of Zeebrugge participated in a Liquefied Natural Gas (LNG)

Vessels

Catamaran Passenger Ferries Delivered in Angola

Incat Crowther announced the delivery a pair of 30m catamaran passenger ferries, Macôco and Panguila, to Instituto Marítimo e Portuário de Angola. The vessels, built by Astilleros Armon in Spain,

TRIYARDS Buys into Aluminium Shipbuilding Expertise

TRIYARDS Holdings Limited, an offshore vessel fabrication and engineering solutions provider to the oil and gas (O&G) industry, has added new capabilities, products

Singapore’s MPA Discuss LNG Bunkering

The Maritime and Port Authority of Singapore (MPA), Antwerp Port Authority, Port of Rotterdam and Port of Zeebrugge participated in a Liquefied Natural Gas (LNG)

Deck Machinery

SOSI Delivers Mooring Winches; Completes Test Pad

Sound Ocean Systems, Inc. (SOSI) announced the delivery of two unique mooring winches, both tested on its newly constructed test pad at its primary manufacturing facility in Sultan, Wash.

Barge Master Installed on Walk-To-Work Vessel

On October 14 the Barge Master BM-T40 system motion-compensated knuckle boom crane pedestal was installed on the new Wagenborg Walk-to-Work vessel, designed and built by Royal Niestern Sander.

Offshore Energy

Statoil: New Oil in the Grane Area

Statoil has together with PL169 partners proved new oil resources in the D-structure in the vicinity of the Grane field in the North Sea.   Well 25/8-18 S, drilled by the rig Transocean Leader,

Offshore Oil: Lamprell Completes Caspian Sea Drilling Unit

UAE-based Lamprell said that it completed construction of the second Caspian Sea jackup drilling rig, Mercury, for service in the Caspian Sea.   "I am delighted

Ocean Power Technologies to Deploy PB40 PowerBuoy Off New Jersey

Ocean Power Technologies, Inc., announced today that the PB40 PowerBuoy(R) fabricated for the WavePort Project has shipped from Santander, Spain to Bayonne, NJ

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Navigation Offshore Oil Pod Propulsion Salvage Ship Electronics Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2119 sec (5 req/sec)