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Simulation of Residual Oil Displacement at the Pore-scale

Farrokhnia Hamedani, Bahareh | 2015

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 47717 (58)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Moosavi, Ali; Shafii, Mohammad Behshad
  7. Abstract:
  8. EOR (oil enhanced recovery) is very important as oil is a nonrenewable resource. Depending on the characteristics of the rock formation, primary production can result in the recovery of up to 20% of the oil originally in the rock. This means that at least 80% of the oil may remain in the rock unless additional technology is used to increase the recovery. Before finding best way to do for EOR, scientists must study properties of different porous media that oil is trapped between its grains. Most of research and studies investigate networks of porous media but this work focused on oil movement through a pore space in porous media lonely not in network by waterflooding. Studying a pore space is conducting to know characteristics of porous media better. Pore space is simulated in different shape. It is considered as a microchannel that oil droplet must be passed through this microchannel. Microchannel is considered with a constriction and ganglion in middle of it. Effect of different shapes of the constriction and different heights of the constriction are studied in this work. Also microchannel with two constriction is simulated. Effect of injecting power law Non-Newtonian fluids is compared to injecting water as a Newtonian fluid. Variation of dynamic pressure, velocity, static pressure, maximum static pressure in oil droplet across the microchannel and its critical surfaces are obtained for all cases and compared to each other
  9. Keywords:
  10. Enhanced Oil Recovery ; Microchannel ; Porous Media ; Pore Space Reconstruction ; Oil Residual ; Constriction ; Ganglion

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