Pore-Level Modeling of Immiscible Drainage Validation in the Invasion Percolation and DLA Limits

Daliri, Ahmad | 2012

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 44382 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Ghazanfari, Mohammad Hossein; Jamshidi, Saeed
  7. Abstract:
  8. Two phase flow through porous media is one of great interests which have been studied for decades in petroleum sciences and even other fields, e.g. hydrology and physics, to solve problems such as enhanced oil recovery, contaminated groundwater or CO2 sequestration projects. Flow in porous media typically predict by means of Darcy’ law which in two phase flow lead to equations such as Buckley-Leverett or Koval, but today it is well approved that compact prediction of flow pattern by these equations may be accompanied by enormous errors and it’s because flow in certain condition is fractal. In this work a new mechanistic model has been used for simulating of immiscible drainage process and this approach compared with rule-based models of DLA and Invasion percolation in the limits of zero capillary number and zero viscosity ratio. Diffusion Limited Aggregation or DLA model the flow pattern in zero viscosity ratios with fractal dimension of 1.7 and Invasion percolation or IP model the flow patterns which are in the limits of zero capillary number and fractal dimension of these patterns is 1.84. Conformity of Mechanistic model Results with DLA and IP model in zero viscosity ratio and zero capillary number respectively shows precisions of pattern which obtained by dynamic model
  9. Keywords:
  10. Dynamics Models ; Diffusion Limited Aggregation ; Invasion Percolation ; Pore Network Model

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