oa History Matching of Reservoirs by Modifying Fault Properties Using 4D Seismic Results – A Synthetic Study

This work we proposes a new integrated methodology which includes geophysics, time lapse seismic data, and history matching to improve the spatial distribution of the fault properties. We also take into account during the history matching the prior probability distribution of the transmissibility obtained using 4D seismic and a prior reservoir simulation model. For updating the fault transmissibility values into the simulation model, we consider the prior probability distribution of the transmissibility values generated using the results of a previous methodology which uses time lapse seismic data and also involves the estimation of fault and matrix permeability to estimate the transmissibility multiplier (Manzocchi et al., 1999 and 2002). These data are then processed during the automatic history matching methodology proposed in this work to achieve fully structured 3D profiles of the underlying reservoirs which comply with the available prior information and which honour production data. Here we apply our methodology in a synthetic but realistic case.