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Integration of Sedimentology and Stratigraphy in a 3D Static Model: Example from the Echinocyamus ... - page 48 / 50

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Presenter’s Notes:

The integration of sedimentology and stratigraphy is important to better understand the geometry and connectivity of the reservoir bodies within each stratigraphic unit. This methodology is necessary to get more reliable reservoir geometries, as it incorporates more and more depositional-model concepts. The stratigraphic model allowed reduction in the risks in reserve estimation, especially because of a better characterization of where the HC is located. Also, the sweep efficiency may be improved as we have a much better understanding of the reserve distribution.

Diagenesis is still an open point. A reservoir petrofacies model will be correlated to the FZI. The type, habit and volume distribution of the different authigenic minerals will provide a better understanding of the relationship between the petrophysical properties and the Flow-Zone-Indicator Methodology. The final objective is to create a predictive model that integrates sedimentology, stratigraphy and diagenesis to reduce uncertainties in secondary recovery projects.

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