Holistic Repurposing of Offshore Energy Assets – 2020 – Free Whitepaper

Valour Consultancy is pleased to release its latest whitepaper covering the “Repurposing of Offshore Energy Assets”, primarily focused upon those in the North Sea.

Offshore platforms are traditionally viewed as single-purpose structures supported by a small village of personnel devoted to that purpose. In the same way that many villages renewed themselves after their main industry declined, for example cotton mills, the coal industry and, in some places, the oilfield, platforms need to adopt a portfolio of alternative commercial endeavours to prosper. This paper suggests that instead of expending large sums of money to remove the structures, that money is used to regenerate the platforms providing income and work and benefitting the country and the company accomplishing the refit.

This paper examines the investigation into alternative uses which appear, so far, to address single option use, either wind power or wave power or other alternative, arriving at the unsurprising conclusion that there would be a negative return on investment (ROI). The paper goes on to suggest that a synergistic combination of six or more processes installed on a platform would not only be profitable but also assist the company responsible for the platform and nation in whose territory the platform stands meet its carbon reduction targets.

The paper offers an alternative scenario in which geothermal is used to power the platform, while wind and wave power are exported to shore. It also suggest that the exclusion zone around the platform is used for aquaculture with nutrient poor surface water fortified by seawater drawn from just above the seabed. The seabed can also be used for energy storage. Seaweed grown in this scenario could be used for medicine, food, chemicals or for carbon sequestration or from ethanol production. Further projects to generate revenue suggested are making fresh water for export to drought-stricken Southern European and North African countries and using the platform as a base for tethered dirigibles which would act as low-cost communication hubs for countries bordering the North Sea and as monitoring stations for shipping and fishing vessels.

The existing subsea pipeline network would be ideal for transport of product to shore. Advanced AI and monitored automation means that manning on such facilities would be minimised and may even be discounted altogether.

The whitepaper suggests that it is eminently possible to have all these projects on-going on the same platform at the same time. Indeed, with sufficient process integration, and smart design, these projects can assist each other. Oilfield engineers develop a unique suite of capabilities while designing and building platforms and oil wells and oil distribution pipelines that would allow them to draw on the many disciplines that would be needed for such a diverse project.