Print Email Facebook Twitter A Network Model for the Kinetics of Bioclogged Flow Diversion for Enhanced Oil Recovery Title A Network Model for the Kinetics of Bioclogged Flow Diversion for Enhanced Oil Recovery Author Lopez Pena, L.A. (TU Delft Numerical Analysis) Meulenbroek, B.J. (TU Delft Mathematical Physics) Vermolen, F.J. (TU Delft Numerical Analysis) Date 2016 Abstract After the primary extraction in oil reservoirs up to 60 % of the oil remains trapped in the reservoir (Sen, 2008). Therefore, different mechanisms have been developed to get the oil out to the reservoir. One of these techniques is Microbial Enhanced Oil Recovery (MEOR) which is a technique used to produce more oil in a secondary extraction by using microbes in the reservoir. The main effects caused by microbes in oil recovery is the reduction of the interfacial tension between oil and water, wettability change of the rock and bioclogging caused by the growth and development of biofilm. Among these mechanisms, interfacial tension reduction and biclogging is thought to have the greatest impact on recovery (Sen, 2008). In this work, we describe the growth of biofilm, the growth of the microbial population and the transport of nutrients using a pore network model. We follow the previous models of Thullner et al. (Thullner, 2008) and Ezeuko et al. (Ezeuko, 2011) in which the biofilm is considered as a permeable layer. We consider the biofilm and the bacteria separately. Additionally, we assume that once a tube is full with biofilm, this biofilm can spread to the neighboring tubes. Finally, we study the changes in the hydrodynamic properties of the medium caused by the plugging of the pores and we study the flow diversion of water caused by plugging of the high permeability zones. To reference this document use: http://resolver.tudelft.nl/uuid:8af03a1d-142d-4d72-b2f9-443cb4395aed DOI https://doi.org/10.3997/2214-4609.201601769 Page numbers 477-494 Event ECMOR XV, 2016-08-29 → 2016-09-01, Amsterdam, Netherlands Part of collection Institutional Repository Document type abstract Rights © 2016 L.A. Lopez Pena, B.J. Meulenbroek, F.J. Vermolen Files PDF 11147063.pdf 1.01 MB Close viewer /islandora/object/uuid:8af03a1d-142d-4d72-b2f9-443cb4395aed/datastream/OBJ/view