Revisiting Brugge Case Study Using a Hierarchical Ensemble Kalman Filter

The present work evaluates the use of hierarchical ensemble Kalman filter (HEnKF) for updating real size reservoir models. It<br>is tested on the large scale Brugge field SPE benchmark study and we chose to revisit the first cycle of this case study (Peters<br>et al., 2009). The Brugge field is a synthetic reservoir built by TNO that has the size of a real field and has been purposely built<br>to mimic a real reservoir with a 30 years leasing life.