The quantification of the sealing capacity of fault rock represents one of the major challenges in the study of compartmentalized reservoirs. In particular, fault seal properties may degrade flow affecting the recovery whilst the reservoir is depleted. In order to represent the fault seal behaviour in reservoir models, well log data is tradionally employed to derive fault transmissibility multipliers. These data carry a large uncertainty and are restricted by the well data coverage. Based on this observation, this study builds on the work presented in Benguigui et al. (2008) in which statistics of the 4D seismic are used to quantify fault properties in areas with poor well data control. In this work an automatic history matching procedure is implemented which incorporates the 4D estimates. By evaluating a misfit function, fault multipliers are randomly selected according to an uncertainty window defined by the errors in the 4D prediction. It is found that including such a workflow in the Heidrun field not only reduces the mismatch between simulation and historic data but also increases the spatial correlation with the observed 4D seismic signature.
|Title of host publication||Society of Petroleum Engineers - 71st European Association of Geoscientists and Engineers Conference and Exhibition 2009|
|Number of pages||5|
|Publication status||Published - 2009|
|Event||71st European Association of Geoscientists and Engineers Conference and Exhibition 2009 - Amsterdam, Netherlands|
Duration: 8 Jun 2009 → 11 Jun 2009
|Conference||71st European Association of Geoscientists and Engineers Conference and Exhibition 2009|
|Period||8/06/09 → 11/06/09|