Project

A common challenge for structures submerged in water, such as offshore oil and gas platforms and wind turbine foundations, is marine fouling. The fouling consists of, for example, mussels and sea grass, which settle permanently on the structure and thereby increase both the volume and roughness of the material. This causes increased stress and fatigue of the structure, primarily due to increased wave loads and the weight of the fouling. Furthermore, the fouling complicates inspections of the structure, which are important for documenting the durability of the material. These disadvantages are reduced by cleaning the fouling off at regular intervals. Alternatively, the structure is oversized in the design phase to overcome the loads from marine fouling. Both methods are expensive for the production and/or operation of the structures and thus for energy production. In this project, two major players within Denmark's strengths, oil and gas (Total E&P) and wind (Siemens Gamesa), have joined forces to support the development of an improved concept for inspecting and combating marine fouling. The concept is based on improved robotic technology, which will raise the level of automation, as well as a compact setup that makes the operation independent of large environmentally polluting vessels, which the clean-up campaigns today depend on. The solution will finally be tested in the North Sea and will raise the technology from TRL 4 to TRL 7.