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Jean-Pierre Girard


Jean-Pierre Girard - Exploration Production - Total

Jean-Pierre Girard, Expert in Petrography, Diagenesis and Inorganic  Geochemistry at Total E&P. 


Jean-Pierre is a low temperature geochemist. After earning a PhD in applied geology & Clastic diagenesis from Université de Poitiers and a PhD in Sedimentary geochemistry and petrology from Université Aix-Marseille III, Jean-Pierre spent 7 years at Case Western Reserve University (USA) as a researcher.


Then, he worked for 13 years with the French Geological Survey (Bureau de Recherche Géologiques et Minières).


In 2007, he joined Total E&P as a specialist and Head of the Mineral Geochemistry Group at the CSTJF in Pau, France. Today, he acts as a Reservoir geochemistry/diagenesis expert for Total E&P.




Jean-Pierre’s prime area of interest and research is in sandstone-carbonate diagenetic processes and their impact on reservoir quality. Currently, he is actively involved in projects dealing with:

  • Absolute Dating of diagenesis and fluid flow events in sedimentary basins
  • Reconstructing OVP history in deeply buried reservoirs
  • Analytical developments for the characterization of diagenetic processes at the micro-scale
  • Diagenesis of Presalt reservoirs




Ong A., Pironon J., Carpentier C., Girard JP. (accepted) The key role of fluid overpressure history on the preservation of reservoir quality: An example from the Tarbert sandstones (Middle Jurassic) in the Greater Alwyn area, Northern North Sea UK.  AAPG, in revision.

Godeau N., Deschamps P., Guihou A., Leonide P., Tendil A., Gerdes A., Hamelin B., Girard J-P. (2018). U-Pb dating of calcite cement and diagenetic history in microporous carbonate reservoirs: case of the Urgonian Limestones, France. Geology, in press

Girard J-P., 2017. An overview of new innovative tools to untangle diagenesis in carbonate petroleum reservoirs. APGCE, 20-21 November, Kaula Lumpur, Malaysia

Girard J-P., San Miguel G., Godeau N., 2017. Pervasive hydrothermal diagenesis in the Pre-salt carbonate reservoirs of the Kwanza basin, offshore Angola. Int. Meeting Sedimentology, 10-12 Oct. 2017, Toulouse, France




  • CEREGE, Aix-en-Provence, France
  • IPGP, Paris, France
  • CRPG et GeoRessources, Nancy, France
  • Imperial College, London, United Kingdom


Best Innovators

Dating Rocks & Hydrocarbon Migration