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Red Marine Delivers Innovative Solution to Leading Global Offshore Contractor

A complex turnkey project has been delivered by one of the UK’s leading engineering specialists, which will see the lifespan extended and performance enhanced of an existing Dive Bell Handling system.

Offshore installation engineering

Red Marine, based in the North East of England, has successfully developed and delivered two shock absorber systems to Subsea 7, a global offshore contractor.

Custom built offshore shock absorber systems

Each system – to be installed on the Osprey Dive Support Vessel later this year – is a custom unit with a shock absorber and winch line tensioning system to enhance the protection of the dive bell and handling system during launch and recovery operations.

Joe Orrell, Managing Director at Red Marine said: “We are delighted to have developed such an advanced hydro-mechanical system that will ultimately save Subsea 7 time and money through enhancing the capability and lifespan of the Osprey vessel.

As a progressive and supportive engineering house, we have worked closely with Subsea 7 – as we do with all clients – to deliver a solution that meets their specific requirements. This is achieved through collective and intelligent thinking combined with the ability to rapidly take a viable concept through to design, manufacture and testing.

The shock absorbers are designed to significantly reduce any shock loading on the lift winch wire caused by the differential motions of the vessel and the diving bell. In operation, a maximum acceptable line tension is set and once this value is reached a shock absorbing cylinder extends releasing extra wire length - up to 3.2m - into the system reducing line tension in a controlled manner down to an acceptable level.

Further to this, an advanced slack management capability ensures wire tension will stay above a minimum acceptable level if the vessel and bell move towards each other, reducing the risk of snatch loadings on the system.

Certified in accordance with stringent DNV codes for diving launch and recovery systems, each dive bell shock absorber system weighs 4.3 tonnes and has been manufactured using Red Marine’s proven supply chain.

Joe further said: “Red Marine has unprecedented expertise in the industry with the winning combination of both equipment design experience and a first-hand understanding of offshore operations. We have a great team that has built a strong reputation for excellent client delivery, meeting and in many cases exceeding their requirements.”

Company Profile

Red Marine Ltd

Red Marine provides engineering expertise to the offshore energy industry to support the delivery of challenging marine projects.

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