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In the preceding chapter, the flow of Newtonian fluids through porous media was discussed in detail. However, non-Newtonian fluids are extensively involved in a number of applied problems involving the production of oil and gas from underground reservoirs. There are at least two typical situations, the flow of heavy oils and enhanced oil recovery (EOR). In EOR applications, non-Newtonian fluids, such as low concentration polymer solutions are injected to increase the viscosity of agents that displace the oil. Similarly, many heavy oils behave as Bingham viscoplastic fluids.
KeywordsPorous Medium Weak Solution Deborah Number Newtonian Case Pseudoplastic Fluid
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