Appendix D - Storage data acquisition categories

Based on ISPE’s experience, the acquisition of initial data (2D/3D seismic, well data) for future CCS projects globally can be grouped into the following categories:

  1. No existing geological prospecting data
    1. Advantages: a fresh start, most probably only literature data available. The project will have a higher flexibility and the opportunity to develop a comprehensive data acquisition plan. Also no containment risks due to existing wells, thus no associated costs for wells rework/abandonment.
    2. Disadvantages: longer duration needed for the site characterisation, higher risks regarding the assessment outcomes. Higher costs for the characterisation phase.
  2. Geological data available – single source
    1. Advantages: usually the data would already be in the possession of the project developer. This would be the best case and would determine the minimum costs and the shortest time for the site assessment phase.
    2. Disadvantages: only if the data owner is not the storage developer. Even so, we can only foresee minor setbacks in this situation: the project developer has to acquire the data, meaning additional costs and time. Certainly the cost would be lower than acquiring new data.
  3. Geological data available – multiple sources
    1. Advantages: we expect that the available data volume in this scenario would be higher, due to the fact that more than one company has prospected in the same area in the past. Based on the existing data, we consider that the additional prospecting needed for the completion of the site characterisation is lower than in the case of the first two scenarios. This would translate into lower costs and time needed for the second phase of the project – the characterisation.
    2. Disadvantages: acquiring the existing data will be more time and resources consuming than scenario 2 above. The containment risks would also be higher than the first two scenarios, if the assumption that more data is available is being considered. This translates into a higher probability of more existing wells, thus a higher probability for wells rework related costs.