Elimination of almost all underwater work (other than pre-mobilisation cutting of seabed connections). The fixed temporary connection between the jacket and the DeltaLifter is made above seawater level, before the turning and lifting operation starts. There will be no persons onboard the DeltaLifter or on the jacket during the lifting operation or towing. The time offshore is shortened.
The DeltaLifter is an environment friendly method of jacket removal. It minimises offshore work and allows removal in one piece thus maximising onshore recycling. It uses existing tugs for transportation and only needs power during operations to operate its pumps and valves.
The base version of DeltaLifter targets a range of jackets with a weight up to 8200 t. For larger and heavier jackets, the design can be scaled to the required size.