Decision - II
In the second part of this decision process, we focus on evidence propagation and Value of Information (VoI). Information is typically acquired to reduce risk. It comes at a cost and the question is: Is the cost incurred worth the gain for a specific project? In the case of CCS, information that would help determining with more certainty that a site is fit (or not) for injection would be the injectivity and pore space. Both quantities:
- have an impact on the main risk factors (Plume migration and Pressure build-up for injectivity and Land Area and plume migration for pore space).
- Are uncertain
- Can be measured through some additional test Drill stem Test (DST) for injectivity and Seismic acquisition for pore space
We establish how the results of these measurements (positively or negatively) impact the underlying risk factor and by connection, the goodness of the site.
We observe that while DST has a local effect, Seismic information informs on the Structure which affects both sites. We have the choice between a strong, local evidence and a weak, global one.
- have an impact on the main risk factors (Plume migration and Pressure build-up for injectivity and Land Area and plume migration for pore space).
- Are uncertain
- Can be measured through some additional test Drill stem Test (DST) for injectivity and Seismic acquisition for pore space
We establish how the results of these measurements (positively or negatively) impact the underlying risk factor and by connection, the goodness of the site.
We observe that while DST has a local effect, Seismic information informs on the Structure which affects both sites. We have the choice between a strong, local evidence and a weak, global one.
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