Vallourec and Geostock have signed a memorandum of understanding to deepen cooperation on large-scale underground energy storage solutions, focusing on hydrogen storage and carbon capture, utilization and storage (CCUS), Vallourec announced.
The agreement combines Vallourec’s expertise in premium seamless tubular solutions with Geostock’s subsurface energy storage and underground engineering capabilities, aiming to support the energy transition.
A central focus of the partnership is scalable hydrogen storage. Vallourec’s Delphy turnkey solution enables the safe storage of up to 100 metric tons of hydrogen, targeting small to medium-scale applications such as decentralized hydrogen hubs. Meanwhile, Geostock’s lined mined rock cavern technology supports storage capacities exceeding 500 mt, suitable for large industrial users and integrated energy systems.
By sharing research outcomes, technical data, and engineering design expertise, the two companies plan to jointly develop well configurations capable of withstanding the physical and chemical challenges associated with hydrogen and CCUS operations.
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