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Evaluating the Hydrogen Storage Potential of Shut Down Oil and Gas Fields Along the Norwegian Continental Shelf

Abstract

The underground hydrogen storage (UHS) capacities of shut down oil and gas (O&G) fields along the Norwegian continental shelf (NCS) are evaluated based on the publicly available geological and hydrocarbon production data. Thermodynamic equilibrium and geochemical models are used to describe contamination of hydrogen, loss of hydrogen and changes in the mineralogy. The contamination spectrum of black oil fields and retrograde gas fields are remarkably similar. Geochemical models suggest limited reactive mineral phases and meter-scale hydrogen diffusion into the caprock. However, geochemical reactions between residual oil, reservoir brine, host rock and hydrogen are not yet studied in detail. For 23 shut down O&G fields, a theoretical maximum UHS capacity of ca. 642 TWh is estimated. We conclude with Frigg, Nordost Frigg, and Odin as the best-suited shut down fields for UHS, having a maximum UHS capacity of ca. 414 TWh. The estimates require verification by site-specific dynamic reservoir models.

Funding source: This work was funded by the Research Council of Norway in the framework of the HySTORM - Clean offshore energy by hydrogen storage in petroleum reservoirs Researcher Project, grant number 315804.
Countries: Norway
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/content/journal6753
2023-04-05
2025-02-23
/content/journal6753
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