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News > AC-ROV in Offshore World First

AC-ROV in Offshore World First

  11/08/2010
Approved AC-ROV operator Allied Marine Logistics (London, UK) recently carried out the world's first internal inspection of a crude oil offloading marine hose system offshore West Africa. The one-man operated AC-ROV was deployed and recovered from the rescue zone of an Anchor Handling Tug Supply vessel in 1m seas with a 1kt current.



AC-ROV being deployedAn external inspection of the hoses was also performed checking for loose bolts, third party impact damage, abrasion, kinking, leak detection devices and other early signs of deterioration. The internal and external inspections were completed within two working days with no downtime.


Meanwhile in the North Sea, Ocean Frontier Services Ltd (OFS) have successful completed the inspection of J-tubes for a wind-farm operator using an AC-ROV hired from Allied Marine Logistics. The internals of the J-tubes were visually inspected with checks being made for evidence of sediment flooding. The smaller AC-ROV was able to enter inside the J-tubes with an internal diameter of 350mm which is something larger vehicles are unable to do.

 





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 ROV  Offshore  vessel  Current 

Website: http://www.almarlog.com
Supplier: AC-CESS Co UK Ltd

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Hydrographic Survey of Riverbed Erosion

Members of the US Geological Survey were filmed while out on the Missouri River at Williston, North Dakota, USA, performing a hydrographic survey to monitor the state of riverbed erosion. They were using a multibeam echo sounder which transmits sound energy and analyses the return signal (echo) that has bounced off the riverbed or other objects. Multibeam sonars emit sound waves from directly beneath a ship's hull to produce fan-shaped coverage of the riverbed. 


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