Last Saturday 14 July at 11h30, the Trailing Suction Hopper Dredger âBartolomeu Diasâ was launched at Uljanik Brodogradiliste d.d. shipyard in Pula (Croatia). The âBartolomeu Diasâ is a sister vessel of the âPedro Ălvares Cabralâ that was launched in the beginning of this year, also at this shipyard in Pula.
After the successful investments between 2007 and 2011 amounting to more than 2 billion Euros, Jan De Nul Group decided to add 3 more vessels to the fleet. These two Trailing Suction Hopper Dredgers with a hopper capacity of 14,000 mÂł each and the fallpipe and mining vessel âJoseph Plateauâ that will be launched on 3 August 2012 at the shipyard Construcciones Navales del Norte near Bilbao in Spain.
Technical details of âBartolomeu Diasâ and âPedro Ălvares Cabralâ
Hopper capacity 14,000 mÂł
Deadweight 22,500 ton
Length o.a. 147.8 m
Breadth 30.0 m
Draught loaded 10.00 m
Maximum dredging depth 43.8 / 52 m
Suction pipe diameter 1,300 mm
Pump power (trailing) 4,000 kW
Pump power (discharging) 8,500 kW
Propulsion power 2 x 7,200 kW
Total installed diesel power 15,960 kW
Speed 15.3 kn
JAN DE NUL IS LOOKING FOR TECHNICAL PERSONNEL AND CREW MEMBERS
In the meantime, Jan De Nul Group continues its search for technical personnel and crew members. Recently, Jan De Nul started a huge HR campaign in cooperation with Kamagurka, a Belgian cartoonist. The key role players in this campaign are his cartoon figures âBert en Bobjeâ, very well known in Belgium.
The Group does not only need new talent to man these new vessels, but also the sites worldwide.
NEW OFFSHORE CONTRACTS IN AUSTRALIA, RUSSIA, CANADA AND THE BARENTS SEA
New sites with a total value of more than 500 million Euros were added to the order book of Jan De Nul Group during the past month.
The assignment for Chevron for the installation of the Wheatstone pipeline at the west coast of Australia is the largest contract. Before installing the pipeline, trenches must be dredged in the hard seabed. In order to protect the pipeline, it must be covered with sand and rocks after installation. Furthermore, prelay rock berms have to be installed, enabling the new pipeline to cross existing pipelines.
In Canada, the Traling Suction Hopper Dredger âCristĂłbal ColĂłnâ will excavate a Glory Hole in the Atlantic Ocean east of Newfoundland. The Glory Hole will protect subsea oil installations from icebergs. The âCristĂłbal ColĂłnâ, the largest dredger in the world, is the only dredger able to dredge to a depth of 155 m. The Glory Hole is to be dredged at a water depth of 130 m.
At the east coast of the Siberian island of Sakhalin, the fallpipe vessel âSimon Stevinâ will install umbilicals for Gazprom at 90 m water depth. These umbilicals serve to control the gas field manifolds from land. This gas field is now a priority development for Gazprom, because of an increased demand in Japan due to the shutdown of the nuclear power plants.
Further up the east coast of this island, the Cutter Suction Dredger âFernĂŁo de MagelhĂŁesâ is dredging an access channel for Exxon. This channel will enable to bring in barges from the sea onto the shore with modules for the onshore drill site. The âFernĂŁo de MagelhĂŁesâ started the works as soon as the ice had melted sufficiently so that the client can make maximum use of the ice-free season.
In the Tatar Strait between Siberia and Sakhalin, Jan De Nul Groupâs rock dumping vessels âLa Boudeuseâ and âWillem de Vlaminghâ are executing rock dumping works to protect a subsea pipeline from ice floes crossing the strait. The rocks are loaded in the Siberian port Sovgavan. The pipeline guarantees the connection of the gas fields east of Sakhalin with the mainland.
And finally, Jan De Nul Group will sail even more up to the north, in the Barents Sea near Nova Zembla. The Group will execute dredging and rock dumping works to protect pipelines which are transporting gas from the Jamal Peninsula to Western Europe.
Dredging Today Staff, July 16, 2012; Image: uljanik