Simulation Model Updating with Multiple 4D Seismic in a Fault-compartmentalized Norwegian Sea Field

A new approach is proposed to effectively update fault transmissibility multipliers in a compartmentalized reservoir using many repeated 4D seismic monitors and historic well production data. Our philosophy avoids a time-consuming seismic history matching loop by directly updating the reservoir model using semi-quantitative information extracted from the 4D seismic to drive down the overall misfit. Two methodologies, applied in sequence, are proposed for our workflow using 4D signatures dominated by saturation changes. The first method detects the location of fault barriers and also confirms openly conducting faults. The second estimates transmissibility values for those open faults identified from the first method. Application of our proposed workflow proves that it can help to close the loop between predicted and observed data from both 4D seismic and well history.