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Trapping of Bubbles in Oil Sands Tailing Ponds Hajieghrary, Omid; Frigaard, Ian

Abstract

Oil sands tailings ponds are significant emitters of greenhouse gases (GHGs) in Canada. To move beyond making surface or atmospheric measurements of GHG release, it is necessary to understand the physical mechanisms by which gas is generated, bubbles form and then are either released or remain trapped in the pond. We present a review of the physical description of tailings ponds, relevant to gas release models. In particular, we target rheological variations within a pond and how these directly affect the distribution of trapped gas bubbles with depth. Within the limits of the available data, we show how gas content may vary significantly across ponds, and develop data-driven one-dimensional models of gas distribution and rheology.

Item Metadata

Title
Trapping of Bubbles in Oil Sands Tailing Ponds
Creator
Hajieghrary, Omid; Frigaard, Ian
Publisher
Multidisciplinary Digital Publishing Institute
Date Issued
2024-10-02
Description
Oil sands tailings ponds are significant emitters of greenhouse gases (GHGs) in Canada. To move beyond making surface or atmospheric measurements of GHG release, it is necessary to understand the physical mechanisms by which gas is generated, bubbles form and then are either released or remain trapped in the pond. We present a review of the physical description of tailings ponds, relevant to gas release models. In particular, we target rheological variations within a pond and how these directly affect the distribution of trapped gas bubbles with depth. Within the limits of the available data, we show how gas content may vary significantly across ponds, and develop data-driven one-dimensional models of gas distribution and rheology.
Subject
GHG emissions; oil sands tailings ponds; yield stress; modelling; rheology
Genre
Article
Type
Text
Language
eng
Date Available
2024-10-18
Provider
Vancouver : University of British Columbia Library
Rights
CC BY 4.0
DOI
10.14288/1.0445594
URI
http://hdl.handle.net/2429/89436
Affiliation
Applied Science, Faculty of; Science, Faculty of; Mathematics, Department of; Mechanical Engineering, Department of
Citation
Energies 17 (19): 4943 (2024)
Publisher DOI
10.3390/en17194943
Peer Review Status
Reviewed
Scholarly Level
Faculty
Rights URI
https://creativecommons.org/licenses/by/4.0/
Aggregated Source Repository
DSpace

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CC BY 4.0