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Permanent link (DOI): https://doi.org/10.7939/R30017

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Core and field scale modeling of miscible injection processes in fractured porous media using Random Walk and Particle Tracking methods Open Access

Descriptions

Other title
Subject/Keyword
Non-classical simulation, NFR, fractured media, miscible injection
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Stalgorova, Ekaterina
Supervisor and department
Dr. Tayfun Babadagli, Civil and Environmental Engineering
Examining committee member and department
Dr. Juliana Leung, Civil and Environmental Engineering
Dr. Ahmed Bouferguene, Campus Saint-Jean
Dr. Tayfun Babadagli, Civil and Environmental Engineering
Department
Department of Civil and Environmental Engineering
Specialization

Date accepted
2011-09-22T13:57:28Z
Graduation date
2011-11
Degree
Master of Science
Degree level
Master's
Abstract
In this thesis, we introduced and applied non-classical techniques to simulate miscible flow in fractured porous media. First, the Random Walk technique was modified to simulate miscible displacement in 2D fractured porous media at the lab-scale. The method was validated using a series of laboratory solvent injection experiments obtained from literature. Then, this model was modified to apply it for field-scale simulations and a sensitivity analysis was performed to identify the most critical parameters of the process. To validate the model, a tracer test done in the naturally fractured Midale field was used. Subsequently, the same fracture network system, which was calibrated against the tracer test results, was used to simulate the pilot CO2 injection applied in the same field. In this exercise, additional modifications to the algorithm were made including diffusive transfer between matrix and fracture. In the last part of the thesis, an approach was presented to scale up the production profiles obtained for a fractured reservoir. The exponents in the scaling equation were correlated to the fracture network properties such as fracture density, box-counting fractal dimension, mass fractal dimension, and fracture volume ratio.
Language
English
DOI
doi:10.7939/R30017
Rights
License granted by Ekaterina Stalgorova (stalgoro@ualberta.ca) on 2011-09-14T23:30:16Z (GMT): Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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