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Permanent link (DOI): https://doi.org/10.7939/R3BR8MP3F

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Semi-Analytical Proxy for Vapex Process Modeling Open Access

Descriptions

Other title
Subject/Keyword
Proxy model
Vapex process
Semi-analytical modeling
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Shi, Jindong
Supervisor and department
Leung, Juliana (Civil and Environmental Engineering)
Examining committee member and department
Prasad, Vinay (Chemical and Materials Engineering)
Dehghanpour, Hassan (Civil and Environmental Engineering)
Department
Department of Civil and Environmental Engineering
Specialization
Petroleum Engineering
Date accepted
2014-01-23T11:59:39Z
Graduation date
2014-06
Degree
Master of Science
Degree level
Master's
Abstract
Vapex (Vapor extraction) is a non-thermal process providing a more environmental-friendly and energy-efficient alternative to steam injection. The simulation process using numerical modeling techniques may become difficult when considering the uncertainty due to reservoir heterogeneity. In this research, a physical-based semi-analytical proxy is developed to model solvent transport in Vapex process at isothermal conditions, detailed analytical formulations are derived and implemented in a calculation procedure to advance the solvent-bitumen interface and to estimate producing oil rate with time. The proposed approach is first validated against Hele-Shaw experimental data available in the literature, then modified to simulate homogeneous and heterogeneous reservoir cases, and further applied to rank a suit of geostatistical realizations and to assess reservoir uncertainty in subscale heterogeneity. Results from this model are compared against experimental data as well as detailed compositional simulation studies. Computational efficiency of the proxy in comparison to numerical simulations is also emphasized.
Language
English
DOI
doi:10.7939/R3BR8MP3F
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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