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Mohmoudpour, Saeed | 2014

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 46075 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Masihi, Mohsen
  7. Abstract:
  8. Fractured reservoirs contain about 85 percent of oil reservoirs and 90 percent of gas reservoirs in Iran. Full study of fractures as the main factor in fluid flow seem essential for these reservoirs. Recently a stochastic method based on the assumption that the elastic energy in the fractured media follows a Boltzmann distribution is proposed. The method utilizes an elastic energy function that sums the interactions of all pairs of fractures present in the model. The energy for each pair depends on the distance between the two fractures, their orientations, lengths and some other elastic medium properties. This objective function used in simulated annealing algorithm for generating fracture network in two and three dimensions. By consideration that the elastic medium is homogeneous and isotropic, this method generate two sets of orthogonal fractures, the pattern that is commonly observed in subsidence. Implementation of PBC (periodic boundary condition) and effect of fracture length size distribution on the final fractures configuration are discussed. The effectiveness of method was assessed through a case study and for reducing the run time, a simple improved algorithm is proposed
  9. Keywords:
  10. Fracture Network Modeling ; Simulated Annealing Method ; Fractures Spatial Configuration ; Fracturing Physical Mechanism ; Adaptive Temperature Function ; Dynamic Markov Chain Length

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