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Experimental Study and Mathematical Modeling of Traveling Liquid Bridges in Fractured Porous Media

Dahim, Sadegh | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 50087 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Ghazanfari, Mohammad Hossein; Masihi, Mohsen
  7. Abstract:
  8. Liquid flow between two porous blocks in fractured reservoirs can occur through capillary continuity or re-imbibition. Studies have shown that capillary continuity via liquid bridges formed in horizontal fracture increases oil recovery from reservoirs. The critical fracture apertures for stability of liquid bridges, shape of curvature and fracture capillary pressure for prediction of fractured reservoir performance remain as controversial topics. Experimental results have shown that critical fracture aperture is a function of surface wettability and critical Bond number. Capillary pressure of fracture might be a positive or negative value caused by liquid bridges. The best method for estimation of fracture capillary pressure is using the radius of a circle which crosses from the center and contact points as an outer curvature radius. Modified inner radius presented in this work is inner curvature radius. Replacing nozzle’s radius with the radius of three phase contact line provides acceptable match between Wilson model results and experimental data for an elongated drop from the surface. By using experimental results and the force balance for the fluid, a semi analytical-semi empirical correlation for prediction of fracture critical aperture and investigation of liquid bridge stability is proposed
  9. Keywords:
  10. Experimental Studies ; Mathematical Modeling ; Fractured Porous Media ; Capillary Continuing ; Gravity Drainage Mechanism ; Capillary Pressure ; Traveling Liquide Bridges

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