Deep Excavation System from Van Oord

Over the past few years, Van Oord has developed a new technique for dredging at great water depths.

This Deep Excavation System (DES), patented by Van Oord, is an innovative method to prepare a sea bottom profile for installing offshore pipelines.

Uneven sea beds are traditionally prepared for laying offshore pipelines by installing large volumes of rock. As an alternative to this Subsea Rock Installation (SRI) method, Van Oord has applied the Deep Excavation System in Australia and Norway.

On these projects, excavating several thousand cubic meters of hard and soft soil made the installation of hundreds of thousand tonnes of rock unnecessary. Combining the excavating system and SRI can be a cost-effective solution for sea bed preparation.

“Nowadays, oil and gas are being extracted more and more from isolated fields in deep water and transported over long distances. Our clients face these challenges. To meet their needs, we offer tailor-made solutions by applying our marine ingenuity. The Deep Excavation System is an example of this and a valuable addition to our complete package of offshore services,” said Joep Athmer, Managing Director of Van Oord Offshore.

stornes

The Deep Excavation System allows dredging to take place at depths varying from 100 to at least 1,000 m. Van Oord’s flexible fall pipe vessels Stornes and Bravenes (operational in 2016) can be equipped with this system, which has been developed in-house.

It consists of the combined application of a sophisticated grab and a Fall Pipe Remotely Operated Vehicle (FPROV). The DES has a very accurate position control system and generates only very limited turbidity, which is vital in view of potential nearby sensitive marine environment like coral.

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3rd International Congress Hydraulic Engineering Structures and Dredging

Russia’s leading maritime industry Media Group PortNews (www.portnews.ru) holds a traditional annual Congress “Hydraulic Engineering Structures and Dredging” in Moscow. 

The two-day Congress includes the 7th International Forum of Dredging Companies and the 3rd Technical Conference “Modern Solutions for Hydraulic Engineering”.

Infrastructure development is among the real sources of Russia’s economy growth. Construction of port facilities and new hydraulic engineering structures on the country’s inland waterways constitute an essential part of all infrastructure projects. It is important to take into account the best international practices to implement these projects effectively.

The program of the Congress will be devoted to the latest technologies for dredging and hydraulic engineering works. Speakers and delegates will refer to real projects to discuss specifics features of dredging works, as well as dedicated fleet and equipment involved.

To learn more about event, please, contact the organizing committee: snitko@portnews.ru

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