Modeling non-Darcy flows in realistic pore-scale proppant geometries

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• 作者：A. Trykozko^a ; ^{a.trykozko@icm.edu.pl" class="auth_mail" title="E-mail the corresponding author} ; M. Peszynska^b ; ^{mpesz@math.oregonstate.edu" class="auth_mail" title="E-mail the corresponding author} ; M. Dohnalik^c ; ^{dohnalik@inig.pl" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Pore-scale simulations ; Non-Darcy flows ; Conductivity
• 刊名：Computers and Geotechnics
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：71
• 期：Complete
• 页码：352-360
• 全文大小：3035 K

文摘

The ability to evaluate the effective permeability of proppant packs is useful in predicting the efficiency of hydraulic fracture installations. In this paper we propose a computational approach combining microimaging data from X-ray computed microtomography, the simulations of flow at pore-scale, and an upscaling process which identifies the effective model parameters at the core-scale. With this computational approach applied to proppant pack we confirm the reduction in the fracture conductivity and subsequent reduction in the productivity of a hydraulically fractured reservoir due to the high flow rates and to the migration of fine particles resulting in pore throat bridging.