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Permanent link (DOI): https://doi.org/10.7939/R3KP7TX2P

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An Experimental Investigation on the Transport Characteristics of Rough Fractures in the Presence of Proppants Open Access

Descriptions

Other title
Subject/Keyword
Fracture Roughness
Fracture Permeability
Proppant Transport
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Raimbay, Aigerim
Supervisor and department
Kuru, Ergun (Department of Civil and Environmental Engineering)
Babadagli, Tayfun (Department of Civil and Environmental Engineering)
Examining committee member and department
Babadagli, Tayfun (Department of Civil and Environmental Engineering)
Leung, Juliana (Department of Civil and Environmental Engineering)
Kuru, Ergun (Department of Civil and Environmental Engineering)
Gul, Mustafa (Department of Civil and Environmental Engineering)
Department
Department of Civil and Environmental Engineering
Specialization
Petroleum Engineering
Date accepted
2015-08-28T13:44:48Z
Graduation date
2015-11
Degree
Master of Science
Degree level
Master's
Abstract
Since the introduction of hydraulic fracturing technique, industry has been attempted to enhance production of hydrocarbon from tight reservoirs by selecting optimum design of hydraulic fracturing treatment. One of the essential parameters in hydraulic fracturing design is the proper selection and injection of proppants. They not only provide fracture permeability but also prevent “healing” of fractures. Hence, the quantification of proppant transport characteristics is highly critical in a sustainable production from hydraulically fractured wells. Previous studies in this regard were limited to smooth (parallel) fracture surfaces to a great extent ignoring the effect of roughness of fractures, which may have significant impact in controlling the permeability of hydraulic fractures in the presences of proppants. In this thesis, effect of surface roughness to fluid flow and transportation/distribution of propping agents were investigated through experimental work. Water and polymer solutions representing typical rheological properties of hydraulic fracturing fluids were injected through transparent models of the fractures of different origin rocks (granite, marble, and limestone) with and without propping agents. The permeability changes due to proppant distribution caused by the roughness of fracture surfaces were quantified and correlated to different fractal characteristics of surface roughness. Qualitative and quantitative analyses were supported by visualization of experiments.
Language
English
DOI
doi:10.7939/R3KP7TX2P
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.
Citation for previous publication
SPE Unconventional Resources Conference held in Calgary, Alberta, Canada, 30 September – 2 October 2014SPE Hydraulic Fracturing Technology Conference held in Woodlands, Texas, USA, 3-5 February 2015

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