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Qualitative Simulation of Fluid Flow in Reservoir Using Fuzzy Logic

Ghadiri, Saber | 2014

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 46844 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Pishvaie, Mahmoud Reza; Jamshidi, Saeed
  7. Abstract:
  8. Investigation of reservoir performance and long-term production prediction are main goal of numerical simulation. Numerical simulation mainly consists of solving sets of non-linear equations developed by combination of continuity equation, equation of state and Darcy equation. Classical methods such as finite difference method (FDM), finite volume method (FVM) and finite element method (FEM) are widely used for solving sets of fluid flow equations that mentioned above. Researchers have used other methods like boundary element method recently. Each of these methods has their own restrictions. But the main source of error in these methods is due to numerical estimation of spatial derivatives in fluid flow equations. Also in all of these methods, desire variables will be calculated discretely in the proposed domain. In this research, fluid flow equations have been solved using fuzzy logic. The main advantage of this method in comparsion with classical methods is using analytical derivation for spatial derivatives. Also desire variable can be calculated continuously in reservoir domain. Some single phase, synthetic reservoirs with different boundary condition and wells operation condition are simulated qualitatively using fuzzy logic. For this method verification, fuzzy simulation results are compared with analytical solution in a synthetic reservoir and also material balance check is performed. Fuzzy simulation method has been combined with IMPES solution method to simulate two phase flow in reservoirs
  9. Keywords:
  10. Numerical Simulation ; Quality Simulation ; Fuzzy Logic ; Fluid Flow ; Porous Media

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