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Permanent link (DOI): https://doi.org/10.7939/R30863H6R

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Investigation of the SAGD Steam Trap with a Simple Modelling Approach Open Access

Descriptions

Other title
Subject/Keyword
steam trap
steam-assisted gravity drainage
SAGD
subcool
GIPR
Gravity Inflow Performance Relationship
liquid level
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Taubner, Spencer P
Supervisor and department
Lipsett, Michael (Mechanical Engineering)
Examining committee member and department
Lange, Carlos (Mechanical Engineering)
Nobes, David (Mechanical Engineering)
Lipsett, Michael (Mechanical Engineering)
Department
Department of Mechanical Engineering
Specialization

Date accepted
2015-09-28T13:37:07Z
Graduation date
2015-11
Degree
Master of Science
Degree level
Master's
Abstract
Steam-assisted gravity drainage (SAGD) has become the most popular in situ method for recovering bitumen in Alberta, but it remains an operationally challenging process. A particular challenge is the maintenance of a liquid pool, or steam trap, around the production well to prevent the influx of live steam, which reduces energy efficiency and increases the risk of eroding production equipment. In this thesis, an analytical model called a gravity inflow performance relationship (GIPR) is formulated to describe the flow through the steam trap. The model enables efficient prediction of the liquid level above the production well, providing a valuable tool for optimizing SAGD well designs and control strategies. The GIPR is verified against simulations using a higher-order numerical model. Then, the GIPR is coupled to a wellbore hydraulics model to study the uniformity and stability of the liquid-vapour interface along the length of a SAGD well pair. Three case studies are conducted with the coupled model, each investigating a different operational challenge, and each providing fundamental insight into the mechanics of steam trap control.
Language
English
DOI
doi:10.7939/R30863H6R
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. 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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Last modified: 2016:06:24 17:13:01-06:00
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Copyright note: Copyright ?? 2015 Spencer Taubner
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