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Johana Ramirez-Bernal

​Johana is the  hydrogen and helium senior exploration geologist at Terrensis, a company specializing in the exploration and development of geological hydrogen and helium in France and Europe. She has 12 years of experience in oil and gas exploration and new ventures projects with companies like British Petroleum, TotalEnergies, and Hocol. Since January 2024, Johana has been leading the subsurface studies for Terrensis, including seismic interpretation, regional syntheses, and geological program preparation. She is responsible for building and evaluating geological models to understand hydrogen production mechanisms and locate traps and reservoirs in the permit area called “Sauve Terre H²” in the Pyrenees.​

November 25, 2024 - 09h10 - 10h45
Overview of the French exploration licences - Geological Hydrogen System in the Western Pyrenees with Focus on the Permit “Sauve Terre H²”, a License Held by TBH2 Aquitaine
The Western Pyrenees have been the focus of numerous research studies over the years, highlighting a model of native hydrogen generation through serpentinization that could be accumulated in geological traps. This model is supported by tomography data showing a shallow mantle wedge, surface geology identifying several lherzolite bodies (a type of peridotite), and the presence of various traps, reservoirs, and seals backed by historical seismic and well data. Published data in the same area also indicate H₂ measurements in soil gas, whose origins are debatable but potentially linked to migrations through deep faults.In December 2023, TBH2 Aquitaine (a subsidiary of Terrensis), was granted permission to explore for native hydrogen, helium and associated substances in the permit area called “Sauve Terre H²,” covering 225 km² in the Mauléon Basin. TBH2 Aquitaine’s technical exploration program in this perimeter aims to demonstrate the existence of a deep native hydrogen generation system, migration paths and transient accumulations. This presentation will showcase some results of the ongoing acquisitions and their implications for hydrogen exploration, including the work done within a tight timeline in 2024, such as passive seismic acquisition, seismic reprocessing, and magnetic acquisition.
95 MIN
The Western Pyrenees have been the focus of numerous research studies over the years, highlighting a model of native hydrogen generation through serpentinization that could be accumulated in geological traps. This model is supported by tomography data showing a shallow mantle wedge, surface geology identifying several lherzolite bodies (a type of peridotite), and the presence of various traps, reservoirs, and seals backed by historical seismic and well data. Published data in the same area also indicate H₂ measurements in soil gas, whose origins are debatable but potentially linked to migrations through deep faults.
In December 2023, TBH2 Aquitaine (a subsidiary of Terrensis), was granted permission to explore for native hydrogen, helium and associated substances in the permit area called “Sauve Terre H²,” covering 225 km² in the Mauléon Basin. TBH2 Aquitaine’s technical exploration program in this perimeter aims to demonstrate the existence of a deep native hydrogen generation system, migration paths and transient accumulations. This presentation will showcase some results of the ongoing acquisitions and their implications for hydrogen exploration, including the work done within a tight timeline in 2024, such as passive seismic acquisition, seismic reprocessing, and magnetic acquisition.
Johana Ramirez-Bernal

Terrensis

Senior Geologist

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