The postdoctoral researcher is working in the CO2 team and will be physically based at the PERL site, the Lacq Research and Study Centre, to carry out laboratory experiments.

- Impact of diphasic CO2/water flow on fluid-rock interactions: implications for mineralization and injectivity in Carbon Geological Storage reservoirs.

- CO2–water–rock interactions are key to CO2 mineralization in mafic rocks. In addition, intermittent CO2 injection in saline aquifers and depleted reservoirs may intensify reactions due to drainage/imbibition cycles. Recent work at Imperial College London (2024, 2025) showed higher dissolution reactivity of magnesium-silicates during diphasic injection. 

The postdoc will study reactivity under mixed-water and supercritical CO2 injection using >10 cm core plugs from ultramafic rocks, clay/carbonate-rich sandstones, and carbonates. The objectives are to give key parameters to:

     - For CO2 mineralization topics: (i) test alternative injection strategies proposed by start-ups (Cella and 44.01) implying supercritical CO2 as a mean to decrease the technology cost (WAG and nano-bubbles) and (ii) provide key parameters for resource estimates

     - For intermittent injection in conventional reservoirs: investigate the risk on injectivity and reservoir integrity through time.

- You have a PhD in geochemistry with experience in laboratory and numerical experiments.

- You speak English and / or French and have good writing skills in English.

- You have less than 3 years of experience after obtaining your PhD.