Conventional approach is dealing with standard well logs and techniques and gives qualitative assessment of properties in complex formations like assuming fractures, secondary porosity, anisotropy of stresses and reservoir properties etc. Impact of special methods, such as wellbore imagers (WBI), can help to exceed those limitations and to significantly improve quality and reliability of petrophysical, geological and reservoir models. This gives us new approach to deal with complexity and every time to invert it into positive results. Several examples of this approach on different complicated cases related to Pannonian basin are presented in this abstract. They cover naturally fractured metamorphic schists, vertical anisotropy in clastic reservoirs, hostile borehole conditions and intervals with secondary porosity.


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