Abstract
Abstract In the frame of the energy transition, producing hydrogen offshore is more and more considered as an efficient and competitive way to transport energy from remote wind farms to the continent and scenarios were hydrogen production, transport and storage facilities are set in the offshore are being investigated. Salt cavities could be developed in the Zechstein and offer large storage capacities to accommodate the high intermittency of wind-farms activity and hydrogen production. In such context, TotalEnergies-OneTech conducted a feasibility study for an offshore storage in Netherland, assessing the technical challenges but also the efficiency and durability of salt cavity facing high frequency injection and withdrawal rates. This paper presents a geomechanical study that was carried out with the aim of answering several questions relating to the design and thermomechanical behaviour of a cavern during its operation. One objective of this study was also to simulate the most severe accident that could occur, namely a blowout.
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