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

Corvus Gains Support from WINN Initiative

Corvus Energy announced today the award of $1.3 million in repayable assistance from the Western Innovation (WINN) Initiative for its project to further develop the Corvus Energy Storage System.

Ocean Rig, Petrobras Agree to $1.1b Drill Ships Lease

Cyprus-based Ocean Rig UDW Inc said on Monday that it signed a $1.1 billion three-year contract with Brazil's state-run oil company, Petroleo Brasileiro SA, to

GAO: Ending Crude Export Ban Could Ease 'Price at the Pump'

As the energy profile of the U.S. continues to improve and evolve daily, fresh debate in favor of exporting oil and gas products -- which would have a significant impact on the U.

Marine Power

Corvus Gains Support from WINN Initiative

Corvus Energy announced today the award of $1.3 million in repayable assistance from the Western Innovation (WINN) Initiative for its project to further develop the Corvus Energy Storage System.

Thrustmaster Announces Factory Expansion

Thrustmaster of Texas, a manufacturer of commercial marine propulsion products, signed a deal last week to expand its Houston-based production facility by 100,000 sqft (93,000 sq m).

Smith Brothers Chrtisten New Tug

Smith Brothers, Inc., Chesapeake Bay-based barge and marine equipment charter company, recently added the tug Capt. Kenneth to its fleet of inland and truckable tugs.

Marine Equipment

New Standard for LNG Cargo Containment Systems

Wilhelmsen Technical Solutions (WTS) said it has successfully completing the gas trial for the first LNG carrier built to a Boil Off Rate (BOR) of 0.08% per day.

Twin Disc Offers Virtual and Real EJS Experience

Visitors to the Fort Lauderdale International Boat Show, October 30–November 3, 2014, can experience what it’s like to control a diesel-powered, conventional driveline

Messer to Debut MetalMaster Xcel

Messer Cutting Systems said it has answered the call from manufacturers that have been demanding a faster, more accurate way of producing cut parts. Messer’s

Vessels

New Standard for LNG Cargo Containment Systems

Wilhelmsen Technical Solutions (WTS) said it has successfully completing the gas trial for the first LNG carrier built to a Boil Off Rate (BOR) of 0.08% per day.

Cruise Ship Returns to Texas after Ebola Concern

The Carnival Magic cruise ship was en route back to the United States on Saturday with a passenger from Texas who might have handled specimens of the first Ebola

'New Tango' Brings More Post-Panamax Ships to Charleston

New service expands Port of Charleston's capacity to serve North-South trade The SC Ports Authority today received the first ship call of a new consolidated

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.

Dynamic Positioning

Maersk Supply Service Orders Six Anchor Handlers

Kleven Maritime A/S has been contracted by Maersk Supply Service to build six anchor handling tug supply vessels, with options for four additional newbuilds. The vessels,

Bouchard Simulation Center Opens at SUNY Maritime

SEPTEMBER 15, 2014, New York, NY – Today in New York Morton S. Bouchard, III and many local maritime dignitaries officially opened The Bouchard Transportation Co.

Crowley Christens New Ocean Class Tugboat

Crowley christens new ocean class, DP2 tugboat, Ocean Sun, in Louisiana As part of the company's new vessel build program, Crowley Maritime Corp. christened

Offshore Energy

Ocean Rig, Petrobras Agree to $1.1b Drill Ships Lease

Cyprus-based Ocean Rig UDW Inc said on Monday that it signed a $1.1 billion three-year contract with Brazil's state-run oil company, Petroleo Brasileiro SA, to

GAO: Ending Crude Export Ban Could Ease 'Price at the Pump'

As the energy profile of the U.S. continues to improve and evolve daily, fresh debate in favor of exporting oil and gas products -- which would have a significant impact on the U.

Autonomous Technology for Offshore Wind Farm

ASV Ltd in association with Planet Ocean Ltd, have received funding from the GROW:OffshoreWind initiative to investigate how the use of Autonomous Surface Vehicles

 
 
Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Naval Architecture Offshore Oil Pipelines Pod Propulsion Port Authority Ship Simulators Winch
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: 0.1656 sec (6 req/sec)