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Permanent link (DOI): https://doi.org/10.7939/R3810P

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Mechanistic Simulation Study of Steam-Solvent Coinjection for Bitumen and Heavy-Oil Recovery Open Access

Descriptions

Other title
Subject/Keyword
Bitumen Recovery Mechanisms
Optimum Coinjection Solvent
Coinjection Strategy
Steam-Solvent Coinjection
Displacement Efficiency
Thermal Oil Recovery
Multiphase Flow
Solvent Aided Process (SAP)
Solvent Methods
Expanding-Solvent-Steam Assisted Gravity Drainage (ES-SAGD)
Steam Assisted Gravity Drainage (SAGD)
Numerical Reservoir Simulation
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Keshavarz, Mohsen
Supervisor and department
Babadagli, Tayfun (Civil and Environmental Engineering)
Okuno, Ryosuke (Civil and Environmental Engineering)
Examining committee member and department
Babadagli, Tayfun (Civil and Environmental Engineering)
Dehghanpour, Hassan (Civil and Environmental Engineering)
Shah, Sirish L. (Civil and Environmental Engineering)
Okuno, Ryosuke (Civil and Environmental Engineering)
Department
Department of Civil and Environmental Engineering
Specialization
Petroleum Engineering
Date accepted
2013-07-09T11:49:09Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
Solvent-steam coinjection has been proposed as an alternative to SAGD. Detailed oil recovery mechanisms of coinjection are little known due to complex interaction of phase behavior, and fluid and energy flow. This research conducts a detailed mechanistic study of phase behavior and its contribution to oil displacement efficiency and drainage rate near the chamber edge. Importance of properly considering both phase behavior and flow to design an optimized coinjection process is demonstrated. We propose a systematic procedure for optimum selection of solvent and its coinjection strategy. Results show that a proper design can significantly improve the oil production rate compared to steam-only injection. We also demonstrate how enhanced displacement efficiency can be achieved during a coinjection process.
Language
English
DOI
doi:10.7939/R3810P
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.
Citation for previous publication
Keshavarz, M., Okuno, R., and Babadagli, T. 2013. Optimal application conditions for steam-solvent coinjection. SPE paper number 165471 presented at 2013 SPE Heavy Oil Conference Canada. Calgary, Canada, June 11-13.

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