In the last years, the better performance of computational centers and the more powerful software allow the building of 3D reservoir models with higher number of active cells and the use of the fine geological static model to make dynamic simulations.

In the past, reservoir geologists experienced some frustration when their detailed 3D fine grid geological description resulted almost obliterated by the upscaling processes. Given the new context, geologists can drop their discomfort for the upscaling smoothing effect and focus on a reservoir description “fit for grid”, which can result much more detailed and closer to the real complexity of the rock.

However, this process is not trivial calling for a much more detailed and sharp geological description. In fact, the upscaling process in some way could mask geological wrong assumptions because they resulted smoothed and mitigated by the upscaling process.


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