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The Impact of Rock Wettability in Fractured Reservoirs Behavior
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 78th EAGE Conference and Exhibition 2016, May 2016, Volume 2016, p.1 - 5
Abstract
Fractures can have a great impact on reservoir management and, therefore, the earlier the influence is determined, better is the management process. The rate at which water may transfer from the fracture to matrix system can vary according primarily to the rock wettability, matrix permeability and fracture intensity ( Narr et al, 2006 ). Matrix-to-fracture transfer functions in reservoir simulation assume that fractures are instantaneously filled with water. However, these circumstances cannot be observed for some conditions, such as water-wet rocks. Rangel-German et al, 2010 , introduce these observations by laboratorial experiments. So, depending on rock wettability, it could result in upscaling issues given the presence of imbibition forces in water-wet rocks which are not well represented in dual porosity numerical models. The purpose of this study is to show the impact of rock wettability in reservoir simulation and upscaling procedures, for fractured reservoirs. The relative permeability curves used for this work are a combination of real field data and synthetic data ( Ligero and Schiozer, 2014 ).