Damen Delivers Purpose-built Offshore Chasers

MarineLink.com
Monday, June 24, 2013

The delivery of the Aquarius-G and her sister ship Astra-G to offshore services company RederijGroen (Scheveningen, the Netherlands) marked a milestone in Offshore Support Vessel construction. According to Damen, never before have such Chasers have purpose-built. The vessels were designed by Saltwater Engineering in close cooperation with both RederijGroen and Maaskant Shipyards Stellendam. Both Seismic Research Support Vessels were constructed by Maaskant Shipyards Stellendam, part of Damen Shipyards Group.

“Indeed, all our other SRS Chaser vessels so far involve converted fishing trawlers”, HenkGroen, director and proprietor of offshore company RederijGroen proudly noted about his new twins. “Having designed them to our specific needs right from the drawing board significantly enhances the vessels’ deployability and performance. Their sharply reduced sway and maneuverability are just two examples”, Mr. Groen added.

The Aquarius-G and sistership Astra-G are Guard Vessels or Chasers. One major task is to ensure that other shipping, mainly fishing ships, will keep distance from Seismic Survey Vessels engaged in offshore exploration. To literally chase-off. The trawlers’ nets might otherwise damage the costly seismic streamers trailing behind the survey vessels.

A further key activity for the SRS vessels are the alongside operations, featuring a variety of services to the seismic survey mothership. Whilst sailing alongside, such assistance includes the board-to-board transhipment of goods and equipment. The two new SRS vessels have a two-ton at a 10.5-meter reach deck crane. The 105 square meters of free space at the aft deck provides sufficient storage capacity to include several ISO maritime containers. An aggregate 16 cubic meters of temperature controlled cells cater for other auxiliary services.

As a significant improvement, the two purpose-built Chasers feature superior nautical capabilities over the converted fishing trawlers, Damen said. Their sharply lesser sway benefits both the alongside operations and the crew’s comfort.

“Seismic research is done at a sailing speed not exceeding four knots. At such low speeds, the ship needs to be both stable and maintain good maneuverability”, HenkGroen says. SRS vessels also measure sea current near offshore rigs to ensure a safe close passage for the seismic survey ship. “So keeping lane at very low speeds is vital for this precise work.” All of this is being put into practice as the Astra-G is currently working at its first assignment in the BarentzSea.

The Aquarius-G was named by the granddaughter of Mr.HenkGroen and daughter of Mr. Erik Groen. The Astra-G, however, was named by Mrs. Gerda van Dongen, wife of Maaskant director Frits van Dongen. The rare phenomenon for a shipyard naming its own product, underscores the close ties with offshore company RederijGroen. “For decades Maaskant has been performing maintenance and repair for our entire 22-strong fleet of offshore vessels”, shipowner Groen noted. “Futhermore, we have built all their other SRS vessels”, Mr. Van Dongen added. “These all involved fishing trawler conversions. Until now that is.”

The two novel Seismic Research Support Chasers have a 40-meter length over all, 9.3 meters width, 3.3 meters draught, with accommodation for a complement of fourteen. Top speed is 14 knots.

www.rederijgroen.nl

www.damen.com
 

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

Vessels

NCSP Group Cargo Traffic Up 6% in Q1 2015

Novorossiysk Commercial Sea Port Group (NCSP Group or the Group) (LSE: NCSP, Moscow Exchange: NMTP) reports that Group’s consolidated cargo turnover in Q1 2015 increased by 2 million tonnes or 6.

Solving the LNG Propulsion Puzzle

The last piece of the LNG infrastructure puzzle, in the form of North America’s first LNG bunker barge, falls into place at Conrad’s Orange, Texas Shipyard. With

Hands Across the Water

U.S. firms leverage Netherlands-based Damen Shipyard’s vessel designs and technical support. For nearly 40 years, Damen Shipyards Group in the Netherlands has

Surveyors

Suezmax Tankers Bullish

Global fixture activity for suezmax crude tankers rose in the first quarter by 5% year on year, with most of the activity coming out of West Africa.   Suezmax

'Amazingly Intact' WWII-era Aircraft Carrier Surveyed

NOAA, working with private industry partners and the U.S. Navy, has confirmed the location and condition of the USS Independence, the lead ship of its class of

Australia: Submarines Excluded from Shipbuild Review

The Australian Navy’s future submarine project has been excluded from the country's shipbuilding review on advice from the Abbott government that the new fleet would be built offshore.

 
 
Maritime Contracts Maritime Standards Naval Architecture Navigation Port Authority Salvage Ship Electronics Ship Repair Shipbuilding / Vessel Construction Sonar
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: 0.1939 sec (5 req/sec)