La Française de l'Énergie Completes World's Deepest Natural Hydrogen Well in France

La Française de l'Énergie (FDE) announced the successful completion of the PTH-2 drilling project in Pontpierre, France, as part of the REGALOR II research program. The well reached a depth of 3,655 meters and is currently the world's deepest dedicated natural hydrogen exploration well.

The PTH-2 well confirmed the presence of natural hydrogen in multiple subsurface intervals within the Moselle department's sedimentary basin. During drilling operations, FDE collected 58 samples directly at the surface and conducted comprehensive formation evaluation including core sampling and in-depth logging.

The drilling involved technical partners RED Drilling, SLB, Baker Hughes, and Weatherford. Following this phase, FDE plans to equip the well with SYSMOG™ and SYSPROG™ probes to measure dissolved hydrogen concentrations and test water-hydrogen separation membranes developed with Solexperts and the GéoRessources laboratory.

FDE holds an exclusive exploration permit covering 2,254 km² in the "Trois Évêchés" region and plans appraisal wells to determine deposit extent and volume. The company targets initial certification by 2027.

The success has prompted FDE to initiate discussions for research programs in Germany, Luxembourg, and Pas-de-Calais. Additionally, FDE plans to deploy its hydrogen detection and separation tools in Kansas wells beginning in the second half of 2026.

Originally reported by Hydrogen Central. Read the full article →