Deploy Subsea provides Project Management and Delivery for all aspects of maritime facilities decommissioning.

We have sound experience in combining civil engineering, work barges and support vessels, machinery and equipment and a variety of trades such as electrical, plumbing and carpentry to ensure that the initial stages of a decommissioning project are carried out safely and to Australian Standards.

Once all permits and compliances are in place and the Project Plan is agreed, we ensure that the structure is made safe to work around. We then use a range of subsea tooling such as Hydrogen cutting torches, Ultrathermic lancing, hydraulic chainsaws and rock breakers and rigging in conjunction with surface cranes to remove the structure.

One of our most notable decommissioning projects was the Steel Wharf at Point Samson near Karratha in Western Australia. This project was managed and executed on behalf of Transfield Services and the Department of Transport and involved a 46mtr construction barge and various support vessels, a 30t excavator, a 200tonne land based crane and a range of subsea equipment. Several trades were brought in to decommission the structure before the specialist crew commenced with removal of the superstructure. Once this was completed the subsea team used a specialised Hydrogen cutting torch to cut the steel piles at bedrock level. After producing an approved safety case for the use of the torch, we were able to record an average cutting time of 9 minutes for 610mmOD x 12.7mmWT steel tubular piles, in zero visibility!