CO2 storage with enhanced coalbed methane recovery

Coal reservoirs may present viable geological targets for CO₂ storage to mitigate greenhouse gas emissions. An advantage of this process is that a large amount of CO₂ can be stored at relatively low pressure, thereby reducing the cost of compression. Other advantages include the use of existing well infrastructure for CO₂ injection and the potential benefit of enhancing recovery of coalbed methane (CO2-ECBM). 

The potential for CO₂ storage and production enhancement may be assessed through laboratory experiments (e.g. measurements of permeability, gas adsorption capacity and displacement efficiency), as well as reservoir simulation studies and integrated economic assessments.