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Aubin Subsea performing field trials of controllable buoyancy system

Over 5 years ago our research and development team at Aubin Subsea developed the liquid transferrable buoyancy products, DeepBuoy and LiquiBuoy. Since then we engaged an investor that was able to resource the development of an operational system.  In 2013 our engineering department began building a lifting system around our liquid buoyancy products and after a preliminary trial, the fully operational LiquiBuoy and DeepBuoy subsea lifting systems are ready for field trials. The trials at The Underwater Centre in Fort William in Scotland, involve our LiquiBuoy system lifting 2off 5T clump weights at 100m using a workclass ROV. We have worked up the spread design and operational procedures with contribution from Fugro who are also supplying the ROV operators. The upcoming trial follows on from the initial successful trial of the system, lifting and achieving neutral buoyancy with a 1T clump weight.


Click on the video to see the footage from the preliminary successful trial of our LiquiBuoy Buoyancy System.



Carried out at The Underwater Centre, the trial will demonstrate that our ground-breaking subsea buoyancy system can safely and effectively allow buoyancy levels to be quickly adjusted to precisely place, move and recover structures on the seabed.


The animation below illustrates our LiquiBuoy Buoyancy System performing a tie-in of subsea hardware.



Aubin Subsea’s Business Director, Serena Arif has been driving the development of the buoyancy systems, readying them for deployment in the industry. “Following the development of the liquid buoyancy technology and the characterisation of the material, we have recently been focused on yard testing to build a prediction model of flow and back pressure. We have engaged industry early on and invited them to contribute to the storyboard of our qualification trials to ensure we are demonstrating the technology as per industry requirements. With industry support and acceptance, our buoyancy range has the potential to make subsea lifting safer, more controlled and easier than ever before. I hope that interested parties take the opportunity to consider how they can use the technology in their existing and future projects, and are keen to be involved in changing the design of some subsea lifting operations.”