We are in the process of adding this surface to the model from available data and some measured road cuts. So for gravity modeling, we have chosen a small area in the North, where there are no volcanics, but a few intrusive bodies. The selected area for gravity modeling was visualized in PetroCaem in order to effectively model the structure. At that point we started to work with volumes rather than horizons and use the Region Modeling capability of PetroCaem. Earth model of the studied area for gravity modeling.
Deepest horizon is Precambrian, and shallowest is Cretaceous.
The option allows to automatically create geological units volumes based on a structural model and update the model by grouping or combining lithologically similar layers into a single region. A density cube can then be defined using the geometry of the geological layers and the density data from nearby wells. This was followed by calculation of gravity in PetroCaem. Region model created by PetroCaem . Each representative layer was created between successive surfaces of the model.