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Permanent link (DOI): https://doi.org/10.7939/R3QH0J

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Coupling of Stress Dependent Relative Permeability and Reservoir Simulation Open Access

Descriptions

Other title
Subject/Keyword
Coupled Reservoir - Geomechanical Simulation
Reservoir Simulation
Stress Dependent Relative Permeability
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Ojagbohunmi, Samuel A.
Supervisor and department
Chalaturnyk, Rick (Civil & Environmental Engineering)
Leung, Juliana (Civil & Environmental Engineering)
Examining committee member and department
Dehghanpour, Hassan (Civil & Environmental Engineering)
Gupta, Rajender (Chemical Engineering)
Department
Department of Civil and Environmental Engineering
Specialization
Petroleum Engineering
Date accepted
2012-03-29T13:52:22Z
Graduation date
2012-06
Degree
Master of Science
Degree level
Master's
Abstract
Geomechanics is increasingly being considered for inclusion in reservoir simulation, since conventional simulators do not honor deformation resulting from the interaction between stress and fluid flow response in a porous medium. Most of the recently developed sequentially coupled approaches for coupling flow and geomechanics have focused on updating porosity and absolute permeability while changes in relative permeability (due to geomechanics) is ignored. For multiphase flow systems, relative permeability functions are one of the most influential parameters controlling fluid movement and distribution. To examine how geomechanically-influenced relative permeability may impact flow, a sequentially coupled reservoir geomechanical simulation study was conducted. The simulation workflow incorporated automatic updates of the relative permeability table for each grid block in the model at every time-step. Data for populating the geomechanical relative permeability tables was extracted from recent experimental test results reported in the literature. Results from the simulation studies showed a significant difference in recovery factors when the impact of geomechanics on relative permeability functions was integrated into coupled simulation compared to when only changes in porosity and absolute permeability were used. Coupled models which incorporate not only the change in permeability and porosity but also the changes in relative permeability can lead to more realistic production forecast especially for reservoirs under improved or enhanced oil recovery scheme as found in heavy oil and oil sands projects.
Language
English
DOI
doi:10.7939/R3QH0J
Rights
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 these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before 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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