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 Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter March 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Energy

Subsea 7 Profits Dip in Q1

Subsea 7 S.A. announced its financial results for the first quarter ending March 31, 2016, reporting revenues of $746 million, down 37 percent from the prior year period.

India Instructs Disputed Tanker to Await UN Orders

India has instructed an Indian-flagged oil tanker that has been blacklisted by the U.N. not to discharge its cargo of crude oil from Libya's rival eastern government

Norway: Oil Industry Safety Deteriorated in 2015

The risk of accidents in Norway's oil industry rose last year after reaching record lows in 2014, a survey by the Nordic country's safety watchdog showed on Thursday.

Marine Power

Cavotec, ABB Partner on Shore-to-ship Power

Cavotec and ABB have signed a Memorandum of Understanding to jointly offer complete shore-to-ship power solutions globally. Such solutions allow vessels to plug

Fincantieri Orders Heat Power Systems for Cruise Newbuilds

Italian shipbuilding group Fincantieri has selected Climeon’s heat power system Climeon Ocean for its energy efficient solutions, purchasing six Climeon Ocean 450M

Langh Tech Scrubbers for Norwegian Cruise Line Newbuilds

Finnish manufacturer and supplier of scrubber solutions Langh Tech will deliver scrubber systems to two new cruise vessels on order at Meyer Werft in Papenburg for (NCL).

Marine Equipment

Voice-data Communications and HDTV in One System

PDQ’s OneSource System provides long range cell, wi-fi and high definition TV in one system for mobile users.   San Diego wireless company PDQ Connect has developed

Fincantieri Orders Heat Power Systems for Cruise Newbuilds

Italian shipbuilding group Fincantieri has selected Climeon’s heat power system Climeon Ocean for its energy efficient solutions, purchasing six Climeon Ocean 450M

Langh Tech Scrubbers for Norwegian Cruise Line Newbuilds

Finnish manufacturer and supplier of scrubber solutions Langh Tech will deliver scrubber systems to two new cruise vessels on order at Meyer Werft in Papenburg for (NCL).

Vessels

India Instructs Disputed Tanker to Await UN Orders

India has instructed an Indian-flagged oil tanker that has been blacklisted by the U.N. not to discharge its cargo of crude oil from Libya's rival eastern government

Englishman: 11th Humber Tug Bears the Name

Humber tugboat operator SMS Towage has drawn on an old name for the latest addition to its fleet. The new Englishman is the 11th Humber tug to bear the title, in

Fincantieri Orders Heat Power Systems for Cruise Newbuilds

Italian shipbuilding group Fincantieri has selected Climeon’s heat power system Climeon Ocean for its energy efficient solutions, purchasing six Climeon Ocean 450M

Deck Machinery

MacGregor's RoRo Access Systems for Car Carriers in Japan

MacGregor has received orders from two Japanese yards to deliver comprehensive RoRo access equipment packages for four car carriers. The equipment will be delivered during Q3 in 2017.

Rapp Marine Equips Pelagic Fleet Trawlers

Rapp Marine has received two new orders for the supply of complete electrical deck machinery packages for the two pelagic trawlers, Rockall and Themis, announced Morten Stenkjær,

JonRie Debuts Container Master Winches

JonRie Marine Winches has introduced its new Container Master Series of winches, featured on the new Crescent 92-foot ASD Mardi Gras. The new winch was designed

Offshore Energy

Subsea 7 Profits Dip in Q1

Subsea 7 S.A. announced its financial results for the first quarter ending March 31, 2016, reporting revenues of $746 million, down 37 percent from the prior year period.

Ulstein Verft's First Wind Service Vessel Launched

Shipbuilder Ulstein Verft has launched its first vessel within the renewable energy segment, and also the first with the newly-developed X-STERN hull line design.

Challenges for Offshore Exploration

The oil discoveries are down 47% y-o-y on an annualised basis so far in 2016, global rig utilisation has dropped 22 percentage points to 73% in two years, and 29% of seismic units are inactive,

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Naval Architecture Offshore Oil Pod Propulsion Salvage Ship Repair Ship Simulators
rss | archive | history | articles | privacy | 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: 0.1178 sec (8 req/sec)