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dc.contributor.advisorBarbour, S. Leeen_US
dc.contributor.advisorHendry, M. Jimen_US
dc.creatorBonstrom, Kristieen_US
dc.date.accessioned2007-04-25T11:46:10Zen_US
dc.date.accessioned2013-01-04T04:29:44Z
dc.date.available2008-04-25T08:00:00Zen_US
dc.date.available2013-01-04T04:29:44Z
dc.date.created2007-04en_US
dc.date.issued2007-04-28en_US
dc.date.submittedApril 2007en_US
dc.identifier.urihttp://hdl.handle.net/10388/etd-04252007-114610en_US
dc.description.abstractElemental sulphur (S⁰) is produced from processing bitumen from the oil sands region, Alberta. Long term storage of this S⁰ is under consideration. The objective of the current study was to determine the controls on water migration in variably saturated S⁰ blocks. Based on visual observations of S⁰ blocks, they were characterized as a hydrophobic fractured porous media. Thus, measurements of the hydraulic characteristics, including porosity (n) and hydraulic conductivity (K) of the matrix and the fractured media, were undertaken. These data were used to create characteristic relationships of unsaturated K (Kunsat) and volumetric moisture content (θ) change with change in positive injection pressure (Ψ). Analyses showed that the mean total matrix n (nₘ) was 0.094 ± 0.035 (n = 280), the mean n available for water migration (nₐ) was 0.065 ± 0.044 (n = 8) and the mean (geometric) K for the matrix was 2.0 x 10⁻⁶ ± 2.1 x 10⁻⁶ ms⁻¹. In the case of vertical fractures, the aperture frequencies were measured to be 2.5, 10.0 and 21.0 m⁻¹ for fractures with apertures > 1.4, 1.4 to 0.6 and < 0.6 mm respectively while the frequency of horizontal fractures, were measured to be 1.7 and 3.7 m⁻¹ for with apertures > 1.4, and < 1.4 mm respectively. The fracture n (nᶠ) was determined to be 0.0135. θ – Ψ relationships were determined for both the fractured and non fractured media. From these plots, water entry values of 9 mm and 1 m were determined for the fracture pore space and the matrix pore space, respectively. Simulations of packer tests resulted in a bulk saturated Kᵇ) values ranging from 8.5 x 10⁻⁵ to 2 x 10⁻⁴ ms⁻¹ above 9 m depth and 3 x 10⁻⁶ to 1.5 x 10⁻⁵ ms⁻¹ below 9 m depth. Coupled Kunsat – Ψ and θ - Ψ relationships were used to conceptually describe water migration in S⁰ blocks under different precipitation and mounding conditions. These plots also showed that the Kᵇ is dominated by the fractures.en_US
dc.language.isoen_USen_US
dc.subjectfractured porous mediaen_US
dc.subjecthydrophobicen_US
dc.subjectwater migrationen_US
dc.subjectsulphuren_US
dc.subjectunsaturateden_US
dc.titlePhysical controls on water migration in elemental sulphur blocksen_US
thesis.degree.departmentGeological Sciencesen_US
thesis.degree.disciplineGeological Sciencesen_US
thesis.degree.grantorUniversity of Saskatchewanen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Science (M.Sc.)en_US
dc.type.materialtexten_US
dc.type.genreThesisen_US
dc.contributor.committeeMemberAnsdell, Kevin M.en_US


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