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Abstract

Summary

The transition to a H fuelled future requires intermittent storage to buffer variations in H production and offtake. Storage of H in salt caverns is proven safe technology in the UK and the US since the 70’s and 80’s respectively. Salt caverns for H storage will be subject to high frequency injection-withdrawal cycles as well as to microbiologically and geochemically induced reactions with H, imposing increased requirements on geomechanical stability and material integrity. We show how the geological understanding, from seismic and well data, in conjunction with leaching behaviour as well as operational learnings from the Aldbrough Gas Storage, UK, constrain the placement of future salt caverns in the adjacent Aldbrough Hydrogen Storage (AHS) project. Well data from existing natural gas caverns indicate a strong thickness variability of individual salt layers in the Permian Zechstein Gp. at a lateral scale of a few hundred meters. Predicting the presence and distribution of Carnallite, being more soluble and mechanically weaker than Halite is of vital interest for solution mining and operation of the Hydrogen caverns. 2D seismic data indicate the marginal setting of the Zechstein Gp. deposits with a thinning towards west and south, hence limiting the area for future salt caverns.

© EAGE Publications BV
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2023-06-05
2026-03-08

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References

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/content/papers/10.3997/2214-4609.202310685
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Hydrogen to Humber, UK: New salt caverns within the existing Aldbrough storage facility
Conference Proceedings 2023, 1 (2023); https://doi.org/10.3997/2214-4609.202310685
/content/papers/10.3997/2214-4609.202310685
/content/papers/10.3997/2214-4609.202310685
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