Geological Storage of Gases as a Tool for Energy Transition

Dear Colleagues,

Most countries in the world are engaged in an “energy transition” because fossil fuels are a limited resource and because the greenhouse gases emissions have to be mitigated. Geologists play a major role in this new challenge by using the rocks as a reservoir to store gases, either definitively or temporarily as a function of the nature of the stored gases (greenhouse gases, fuel gases, compressed air, etc.). The injection of such gases in reservoir rocks induced many mechanical, thermal and physico-chemical processes leading to the evolution of materials (reservoir and cap-rocks, well materials) with time. The storage impairment has to be understood and controlled in order to avoid any leakage of the stored gases which could have an environmental or economic impact.

The goal of this Special Issue of Geosciences is to be widely opened to new researches related to the geological storage of gases. In particular, but not exhaustively, the topics related to:

• Hydrogen
• CO₂ and acid gases
• Compressed air

The studies can address all the geological aspects of the storage, from the mechanic to the geochemistry, without neglecting the monitoring aspects. Experimental, analytical and modelling approaches are particularly encouraged.

Prof. Jerome Sterpenich

Guest Editor