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 June 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Energy

Aberdeen Pupils Peek into Subsea Oil & Gas Technology

Pupils at an Aberdeen primary school were given a rare insight into the depths of the oil and gas industry’s subsea sector after getting to sit in the driving

CNOOC Acquires Asia's 1st LNG Powered Tug

China National Offshore Oil Corporation (CNOOC) has taken delivery of Asia’s first tugboat Hai Yang Shi You 525, designed to operate solely on liquefied natural gas as ship’s fuel.

NITC Claims World's Largest Supertanker Fleet

According to the head of the National Iranian Tanker Company (NITC), Iran has 42 very large crude carriers or VLCCs, each able to carry 2 million barrels of oil, reports Press TV.

Marine Power

FORAN for Pertamina's Future Ships

FORAN has been chosen by state-owned company PERTAMINA to review the design of their future oil product carrier ships, under construction in a shipyard with the FORAN System.

CNOOC Acquires Asia's 1st LNG Powered Tug

China National Offshore Oil Corporation (CNOOC) has taken delivery of Asia’s first tugboat Hai Yang Shi You 525, designed to operate solely on liquefied natural gas as ship’s fuel.

The Submarine Electricity Transmission Market Is Expected to Reach $25 Billion in 2024

According to a new report from Navigant Research, the global submarine electricity transmission market is expected to grow from $16.8 billion in 2015 to $24.8 billion in 2024.

Marine Equipment

FORAN for Pertamina's Future Ships

FORAN has been chosen by state-owned company PERTAMINA to review the design of their future oil product carrier ships, under construction in a shipyard with the FORAN System.

Bestobell Bags HHI's Valve Order

Bestobell Marine, a world leading supplier of cryogenic valves for ships, has won a major new order from Hyundai Heavy Industries (HHI) in South Korea to supply valves for two new vessels.

CNOOC Acquires Asia's 1st LNG Powered Tug

China National Offshore Oil Corporation (CNOOC) has taken delivery of Asia’s first tugboat Hai Yang Shi You 525, designed to operate solely on liquefied natural gas as ship’s fuel.

Vessels

Aberdeen Pupils Peek into Subsea Oil & Gas Technology

Pupils at an Aberdeen primary school were given a rare insight into the depths of the oil and gas industry’s subsea sector after getting to sit in the driving

AVEVA, DNV GL's Sesam Integration Cuts Cost

Integration of Aveva and DNV GL's Sesam Reduces Costs in Maritime and Offshore Engineering. Engineers designing ship hulls and offshore floaters can now save

Bestobell Bags HHI's Valve Order

Bestobell Marine, a world leading supplier of cryogenic valves for ships, has won a major new order from Hyundai Heavy Industries (HHI) in South Korea to supply valves for two new vessels.

Deck Machinery

Lifting Specialists Modulift, IMES form Joint Venture

Lifting industry specialists Modulift and IMES have formed a joint venture to offer an integrated management service to clients internationally.   The two companies

MES Delivers Bulk Carrier Newbuild

MES delivers next ship of its Eco-Ship neo60BC design, 60,000 DWT type bulk carrierM.V. Phoenix Rising   Mitsui Engineering & Shipbuilding Co., Ltd. (MES) completed and delivered a 60,

Dynamic Positioning

Greek Shipping Mulls Cyprus Move

Greek shipping companies are looking into moving to Cyprus due to the instability and uncertainty in Greece, it emerged, reports Cyprus News Agency.   The director

EU Funds Port Move

The Port of Cork has received almost EUR13 million in EU funds for the Euro100 million redevelopment of Ringaskiddy, as part of plans to modernize the port.   The

Beier Radio is now Beier Integrated Systems

For 70 years, Beier Radio has provided engineering, sales, and service for marine electronics around the globe. As the corporation marks its 70th anniversary,

Offshore Energy

Technip Samsung JV Wins 2 FLNG Project Contracts

The Browse project covers the realization and installation of three FLNG units to develop the Brecknock, Calliance and Torosa fields in the Browse Basin, 425 kilometers North of Broome,

Fjords Processing Bags Johan Sverdrup Contracts

Fjords Processing, headquartered in Norway (Fornebu), has won three contracts for the deliveries of process systems for the Johan Sverdrup development in the North Sea.

Ocean Safety, Richard Irvin Marine Safety Merger

Ocean Safety has today announced the merger with Richard Irvin Energy Solutions Marine Safety Division and their Aberdeen branch.   This merger follows the

 
 
Maritime Contracts Maritime Security Naval Architecture Pipelines Pod Propulsion Port Authority Ship Electronics Ship Simulators Sonar Winch
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: 0.3413 sec (3 req/sec)