6. Risk assessment tools for CO2 geological storage assessment
The aim of this project was to develop a consistent framework to integrate the different methodologies which are currently used or are under development for CO2 storage performance assessment (PA) taking into account the need for long and short term PA and including all subsurface processes that may significantly impact pertinent “Health, Safety and Environment”-indicators.
These methods span from purely qualitative to quantitative and from deterministic to stochastic and incorporate extensive sensitivity and uncertainty analysis.
The main results of this project were:
- an access database of the tools currently used in risk and performance assessment, including a short description of each tool, the main principles of its function (including assumptions and limitations) as well as the areas of CO2 performance assessment where such tools are/can be utilised. This database included the CO2 PA toolbox inventory within Europe as well as tools that are developed/used outside the network consortium in other disciplines (finance, health risk assessment, climate prediction etc);
- an up-to-date compilation of the terminology used amongst the CO2 storage risk assessment as well as related to other disciplines (e.g. nuclear waste repository PA);
- a list of the currently available methodologies for CO2 storage performance assessment with the specification of, for example, the level of detail, the spatial resolution, the relevance to short/long term scale and the tools that are currently utilised in each method. Using this information, the strengths and weaknesses of existing or under-development methods could be identified, complimentary functionality or potential niche for each method was determined and gaps were identified where improvements can be implemented.
Database with risk factors (FEPs).
For more information please contact:
Anna Korre at Imperial College London