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Acta Marine
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Acta Marine is a worldwide market leader in the operation of coastal and shallow draft workboats.
Acta Marine is a worldwide market leader in the operation of coastal and shallow draft workboats.

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Coastal Ace: active in SE Asia.

Dutch maritime services company, Acta Marine works on a substantial amount of international projects. In recent years, for example, Multicat Coastal Ace has been flying the flag on numerous shallow water projects in Taiwan, Malaysia, Indonesia, Vietnam and Singapore.

As you would expect from an Acta Marine Multicat, Coastal Ace has performed a wide range of duties. These include dredging support, hose handling, ploughing operations, fuel transfers and, last but not least, anchor handling for a cable lay barge.

The result of this string of successfully completed contracts? This 26-metre long vessel and her crew are building up a particularly strong reputation for Acta Marine in South East Asia.

“This is such a versatile shallow-water vessel – capable of working in waters of only 2.5 metres deep,” says Sinclair McWilliam. “If your project in South East Asia or Taiwan needs a versatile workhorse with optimal usability of marine assets, the Coastal Ace is the right vessel for the job – generating benefits to the entire project.”
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09-11-18
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News from Acta Marine’s latest cable reburial project.

Coastal Discovery, of one Acta Marine’s fleet of versatile workboats, has completed a shallow water cable reburial project for a German offshore wind farm. Working closely with the client’s operators and hydrographic survey team, vessel and crew completed reburial of the approximately one kilometre of cable in a matter of days.

Acta Marine mobilised Coastal Discovery from the company’s home port of Den Helder in the Netherlands; sailing to Freesendorf on Germany’s north coast, where preparations for the project included:

• Installation of specialist mass flow tool
A mass flow tool is used to carry out subsea cable re(burial) operations. It is a T-shaped tube with impellers on both horizontal sides. Water is taken into the impellers and forcibly pumped into the downward facing outlet tube. When positioned over the seabed, this jet of water brings the surrounding substrate into suspension. The cable or pipeline (generally referred to as a ‘product’) then sinks into the seabed. By performing repeated passes over the product, it can be lowered consecutively deeper into the seabed.

For more compact seabed substrates, the mass flow tool can be equipped with high pressure nozzles, connected by hoses to water pumps on the deck of the vessel. The major advantage of using a mass flow tool is that, because it is a non-contact form of excavation, there is no chance of damaging subsea infrastructure.

• Installation of survey equipment
Subsea survey equipment can used to obtain a huge amount of information. For this contract, Acta Marine needed details of seabed topography, cable position and depth of burial.

• Crane inspection
The contract called for an extra crane inspection. However, due to Acta Marine’s continuous commitment to maintaining high quality equipment, this proceeded without any comments.

• Hydraulic oil replacement
As a requirement from the end-client regarding operations in an environmentally sensitive area, the preparatory work also included replacing all the vessel’s hydraulic oil with bio-degradable oil.

“Our DP Multicats are the perfect boats to accommodate project-specific tools and associated power requirements because of their spacious work decks and powerful cranes,” commented Acta Marine Project Manager Cor Visser. “What’s more, operations took place in waters between three and five metres deep – letting Coastal Discovery really show her shallow draft skills.”
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Acta Marine is pleased and proud to announce that the second Ulstein SX195 will sail under the name ACTA CENTAURUS. Read all about it.
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Coastal Chariot – part of Acta Marine’s fleet of multipurpose vessels.

Acta Marine has deployed one of its Ultra Shallow Draft Multipurpose Support Vessels – Coastal Chariot – to assist the start of a pipe pulling project. Sinclair McWilliam, the company’s Project Manager for the contract, highlights some of the vessel’s key characteristics that are facilitating the smooth execution of operations.

“Coastal Chariot has the power; 4000hp and 36 tonnes of bollard pull, to be precise. But she also has the accuracy to work in shallow waters of less than three metres deep when working on DP. This makes the Coastal Chariot a unique asset for a coastal project like this.”

It is important to note that Coastal Chariot is not Acta Marine’s only Multipurpose Support Vessel. In fact, the company has a dozen similar vessels currently in operation. And, looking at some of their completed projects for oil and gas, offshore wind, dredging, and survey support duties, it is clear to see that their versatility is highly valued.

“These are the most versatile vessels in operation today,” Sinclair says. “If you need support for your shallow draft projects, just get in contact with us.”
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14-08-18
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First 24-pax CTV.

Responding directly to the demand for increased passenger capacity from the European offshore wind sector, Acta Marine has mobilised a 24-passenger capacity Crew Transfer Vessel (CTV); the recently modified Offshore Wielingen.
“Since acquiring our CTV fleet, we have only operated vessels with a 12-person passenger capacity,” says Acta Marine’s Operations Coordinator Kerrie Forster. “However, due to a growing demand for more capacity in terms of industrial personnel carriage, we started investigating the option of expanding the Offshore Wielingen to meet the newly developed High Speed Offshore Service Craft Code, HS-OSC.”

The motivation to proceed with the plans to modify Offshore Wielingen arose in late 2017, when one of Acta Marine’s long-term clients had requested a 24-passenger CTV.

The modification and re-certification works were completed in April 2018 at South Boats IOW (now Diverse Marine) in Cowes UK. Offshore Wielingen then started her first contract as a 24-passenger CTV; providing crew transfers on the inter-array cable laying campaign at the Arkona Windfarm.

“With this modification, we are continuing our provision of up-to-date vessels and abilities, while catering to the growing demand for these types of vessels,” concludes Forster. “And, of course, increasing our success rate for future projects.”
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Acta Marine named its second Walk to Work Support Vessel in Emden, Germany.
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Working together for effective oil spill recovery.

Acta Marine teamed up with Foru Solution to organise an oil spill recovery demonstration for companies operating in the oil & gas and marine construction industries. Guests were invited to the Palm Jumeirah in Dubai to see the Foru Solution team using their equipment on-board Acta Marine’s Multicat Coastal Guardian.

Foru Solution has two different skimmers depending on the location of an oil spill situation. The FORU-70 is intended for use in more sheltered environments such as rivers, lakes and harbours. Crucially, it can be deployed in waters as shallow as 75cm and is light enough to be carried by two people. The FORU-340 has a higher recovery rate of up to 340 m3/h. It has been designed for use in harsher offshore environments, in addition to harbour and coastal areas.

“By bringing together an innovative and young company like Foru Solution with an experienced and reliable service provider like Acta Marine, we have created a unique and prosperous business relationship,” comments Pieter Liezenga from Acta Marine “Operating in shallow waters in one of our core disciplines. Therefore the versatility of our Multicat workboats combined with the Foru skimming equipment means that oil spill recovery activities can be mobilised quickly and performed effectively.”

After the demonstration, both companies received positive and interesting feedback from the attending guests. “The presence of Foru skimmers will confirm a company’s readiness to respond to any type of oil spill,” adds Bert Smit Sibinga from Foru Solution. “We are looking forward to working closely with Acta Marine to develop this unique concept and enhance the environmental safety of the maritime environment.”
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After successfully working in the Bard Offshore 1 OWF for almost one month, we proudly present this video showing the building and delivery of Acta Auriga as well as some really cool shots operating in the Offshore Windfarm. Thank you Ulstein and SMST for this successful cooperation.
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