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Permanent link (DOI): https://doi.org/10.7939/R31P83

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Bioturbation and Resource Quality: A Case Study from the Upper Cretaceous Lysing and Nise Formations, Ellida and Midnatsoll Fields, Norwegian Sea Open Access

Descriptions

Other title
Subject/Keyword
Cretaceous
Reservoir
Lysing
Sedimentology
Norway
Nise
Petrophysics
Permeability
Characterization
Quality
Offshore
Ichnology
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Polo, Camilo
Supervisor and department
Gingras, Murray (Earth and Atmospheric Sciences)
Examining committee member and department
Pemberton, George (Earth and Atmospheric Sciences)
Van der Baan, Mirko (Physics)
Department
Department of Earth and Atmospheric Sciences
Specialization

Date accepted
2013-01-10T11:01:54Z
Graduation date
2013-06
Degree
Master of Science
Degree level
Master's
Abstract
Nine cores (approx. 156 m) within the Upper Cretaceous Lysing and Nise formations (Møre Basin, Norwegian continental shelf) are studied in order to assess the relationship between bioturbate fabric and the resulting permeability distribution. Overall, the Lysing and Nise formations strata comprise unburrowed to completely bioturbated very-fine to fine sandstones and mudstones containing a highly-diverse trace fossil assemblage that represent parts of the proximal through distal Cruziana ichnofacies. X-ray microtomography (Micro-CT) imaging, spot-, bulk-permeability measurements and petrographic assessments show that permeability distributions are strongly influenced by the location and nature of bioturbation. Spot permeability data taken from core-plugs indicates that the burrow permeability can be up to two orders of magnitude greater than the matrix. Therefore, it proffers a biogenically influenced dual-permeability flow media. These modifications constitute selective fluid flow networks that occur through the imposition of coarser grained sediment within burrows in otherwise fine-grained strata
Language
English
DOI
doi:10.7939/R31P83
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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