A flexible approach to decommissioning obsolete oil and gas structures
There are more than 1,500 oil and gas installations in the North Sea. An increasing number of them will reach end of production and require decommissioning in the next two decades.
Since the 1990s, legislation in the North Sea and wider northeast Atlantic under OSPAR Decision 98/3 dictates that obsolete oil and gas platforms must be fully removed from the marine environment at end-of-life. As the world transitions to greener energy, wind turbines and wave-energy devices are being added to the marine environment but will also require removal at end-of-life. Options other than removal do exist and are being implemented elsewhere in the world, including partial removal, relocation, or repurposing (e.g. as artificial reefs, dive resorts or mariculture facilities), but are not currently considered in the OSPAR maritime area.