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Multiscale Finite Volume Method for Simulation of Compressible Multiphase Flow in Porous Media

Hosseini, Sajad | 2012

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 43610 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Jamshidi, Saeed; Masihi, Mohsen
  7. Abstract:
  8. Today, due to a massive increase in accuracy of reservoir characterization models, multiphase flow simulation on real permeability fields faces a serious challenge. Using multiscale methods in reservoir flow simulation of a heterogeneous environment has led to huge speed-up of the simulation. In multiscale methods, instead of replacing a heterogeneous medium by an equivalent homogeneous medium, used in upscaling, the problem is solved on the original resolution. In this thesis, multiscale finite volume method (MSFV) has been used to simulate flow and saturation behavior of a black oil model. Unlike the original multiscale finite volume methods that were unable to solve compressible fluid problems, here, by inserting a pressure correction term into equations, the pressure field reconstructed from coarse scale pressure becomes mass conservative, leading to a true description of compressible flow behavior. Analyzing parameters effective in accuracy and efficiency of multiscale finite volume methods (such as coarse scale grid size, dual basis functions updating threshold, and boundary conditions of local equations calculating dual basis functions) reveals that these parameters vary based on specific conditions of each reservoir (especially permeability field variations)
  9. Keywords:
  10. Multiphase Simulation ; Multiscale Finite Volume Method ; Black-Oil Model ; Heterogeneous Porous Media ; Multiphase Flow ; Dual Basis Function

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