A monitoring, reporting and verification (MRV) plan sets out what will be measured, how often, and how the measurements show that injected CO2 is behaving as expected. It cannot be written without a view of what "expected" is, and that comes from the subsurface model.
Three things the model has to supply
- A predicted response. How pressure, saturation and rock properties should change through time, so each monitoring method has something to be compared against.
- Detectability. Whether a given method can resolve that change at this site. A technique that works in one formation may see nothing in another.
- The main uncertainties. Where the prediction is least certain is where monitoring adds most value.
Baselines
Every later measurement is read against the pre-injection state. Baseline logging and sampling that is too sparse, or acquired too late, cannot be repeated afterwards.
Draft explainer. Byline and final wording to be confirmed by the owner [VERIFY].