France Advances Natural Hydrogen Exploration with 3.7 km PTH-2 Well in Lorraine

La Française de l’Énergie recently drilled the PTH-2 exploration well to approximately 3,655 metres in the Moselle basin of Lorraine, reporting dissolved-hydrogen concentrations of 36.1 percent at 2,242 metres and 49.6 percent at 2,426 metres, according to the company. Those readings represent the principal data points returned from the borehole so far. They were recorded during the campaign that targeted deep formations beneath the former coal-mining district. The company has framed the results as an early indicator of hydrogen enrichment at depth, while noting that further work is required to characterise the resource and its behaviour over time.

This deep-borehole effort is part of the REGALOR II programme under the Trois-Évêchés exclusive exploration permit, which covers about 2,254 square kilometres in the Grand Est region, according to market disclosures. The permit area spans multiple structural domains within the Grand Est. REGALOR II is the operational banner for the drilling, sampling and follow-up testing planned by the company in Lorraine.

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