Corrosion Protection News

New model tool: the iCon inspection robot searches for cracks. CREDIT: OceanTech

Subsea Robots in the Splash Zone

the North Sea, it is common to assume that structural details located below or in the splash zone are not accessible for inspection and repair.” The splash zone is defined in DNVGL standard, ST-0126.“Inspection of structures in the splash zone and below water focuses in addition on the corrosion protection systems (steel wall thickness, anodes, coating, etc.), marine growth and scour protection.” Yet, OceanTech’s tools do that hazardous work. The iCon robot addresses these and subsea structures as well, starting with risers that could lose buoyancy if fouled by marine life: they

 Applying Ecofix on the corroded areas of a rudder. (Photo: Subsea Industries)

Performing Coating Systems for Different Applications

extraordinary. This is the effective alternative to metal facing or very expensive alternative fillers. And because it is part of the Subsea Industries family, it is fully compatible with our coatings.EcolockEcolock is used on stationary offshore units. The main benefit of the coating system is corrosion protection and the possibility to clean it. These units are designed to stay on location for 15, 20 and even up to 30 years. Hull integrity and corrosion protection is a major thing. Class demands an underwater inspection twice every five years to see if the hull is in good shape. So the hull must be

Buoy no. 45 (painted with a corrosion protection) after three months Photo: RENOLIT Group

Anti-Fouling Film Tested on Fairway Buoys

. For this reason, the buoys have to be checked and cleaned regularly,” says Jörg Böning from the WSA in Bremerhaven.To test whether the film would also be suitable for fairway buoys, three buoys were prepared for testing in April 2018. One, (No. 45) was painted as usual with a corrosion protection, the second, (No. 47) was given an additional paint coating and the third buoy (No. 48) was wrapped with RENOLIT DOLPHIN S. All three were anchored in the Weser estuary about 10 km from Bremerhaven within an area of about half a nautical mile so that they would be subject to similar fouling

Photo: Equinor

Arkona Offshore Wind Farm Comes Online

step for the development of offshore wind energy in the Baltic Sea", said Frank Golletz CTO of 50Hertz.Equinor has contributed actively in the development of the project through secondees and the company’s competence especially within marine operations and structures, including corrosion protection.60 turbines of the six-megawatt class by Siemens Gamesa Renewable Energy will be installed. Arkona is a 50/50 joint venture between German utility E.ON and the Norwegian energy company Equinor.Equinor’s current offshore wind portfolio has the capacity to provide more than 1 million European

New Model 810 Pneumatic and Hydraulic Industrial Fluid Rotary Union (Image: Moog Focal)

Moog Focal Rolls Out New Fluid Rotary Union

long endurance applications and low maintenance. Filled PTFE based seals run on a hardened surface to provide long service life, minimizing frictional heat generation and operational torque. For marine applications, the Model 810 is available in hybrid and fully stainless steel versions for added corrosion protection. This Fluid Rotary Union can be easily combined with Moog electrical and optical slip rings, contains pass isolation and cross channel flow prevention, and has been tested up to 5 million revolutions

Photo courtesy of Hydro Group

Hydro Group Completes MeyGen Contract

been a strong focus for us. We design our systems to mate and de-mate (connect and disconnect) in less than one hour to ensure offshore installation cost is reduced.   “Further to this, Hydro Group’s system is designed for minimal maintenance and operational costs with in-built corrosion protection, resulting in a system that has 25 years’ service life.”   The MeyGen project has the potential to provide clean, sustainable, predictable power for 175,000 homes through a network of 269 tidal turbines secured to the seabed, with the first power to the national grid delivered

Luva-flowlines heading for the field on board the Seven Oceans (Photo: Statoil)

Statoil: High Activity in Deep Waters

;We split the most weather-sensitive operations into sub-operations and consequently we did not have to wait for long weather windows to carry out the operations,” she explains. This is the first time Statoil uses BuBi pipes, which consist of liner pipes and steel catenary risers for corrosion protection. At such depths it is namely possible to use rigid risers, which also cost less than flexible risers. During two weeks in June the spoolers were also installed. Normand Oceanic did the job perfectly and ahead of schedule. “During this operation we did not have to wait on weather at all

Intershield for  on-board maintenanceCourtesy AkzoNobel’s Marine Coatings

AkzoNobel Debuts Intershield

AkzoNobel’s Marine Coatings business has launched a best-in-class anticorrosive universal primer, Intershield One-2-One, which delivers simplified maintenance, waste avoidance and enhanced corrosion protection.   Intershield One-2-One, part of AkzoNobel’s International range of marine coatings, is a surface tolerant universal primer for use during on board maintenance. It is based on the company’s Intershield 300 pure epoxy technology, which provides a unique balance of abrasion and corrosion resistance with optimum levels of hardness and flexibility, delivering long-term

Photo courtesy of Trelleborg

Trelleborg Signs Framework Agreement with Statoil

Trelleborg’s offshore operation in Norway, signed a framework agreement with Statoil for the supply of Elastopipe, corrosion protection, Passive Fire Protection (PFP) as well as Thermal Insulation (Vikotherm R2, S1 and P7). The framework agreement is signed for six years. Hans Leo Hals, Managing Director for Trelleborg’s offshore operation in Norway, commented: “We are very proud that Statoil has chosen to sign a framework agreement with us for our core products and solutions. Our proven technologies, leading materials and long experience have made us an important supplier in the

Photo: Trelleborg

Trelleborg to Enhance Safety at Sverdrup Oil Field

to both seawater and impact, effectively withstanding low and high temperatures and giving corrosion and mechanical protection.   Trelleborg’s offshore operation in Norway has delivered a variety of rubber based products and solutions since 1896. In 1972, the company started providing corrosion protection to the oil industry and in 1986 made its first delivery of thermal insulation to the Oseberg field, Norway.   After the Pipe Alpha disaster in 1989, Trelleborg worked with Hydro and Saga Petroleum, now Norsk Hydro, to develop a new type of fire protection in rubber, for use on risers

Marine Technology Magazine Cover Jan 2020 -

Marine Technology Reporter is the world's largest audited subsea industry publication serving the offshore energy, subsea defense and scientific communities.

Subscribe
Marine Technology ENews subscription

Marine Technology ENews is the subsea industry's largest circulation and most authoritative ENews Service, delivered to your Email three times per week

Subscribe for MTR E-news