Development of an Experimental Apparatus for Studying the Effects of Acoustic Excitation on ViscosityReport as inadecuate




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Oil Sand, Excitation, Bitumen, Viscosity, Acoustic, Pressure, Bentonite

Evans, Marc David

Supervisor and department: Nobes, David Mechanical Engineering Lipsett, Michael Mechanical Engineering

Examining committee member and department: Lipsett, Michael Mechanical Engineering Kuru, Ergun Civil and Environmental Engineering Olfert, Jason Mechanical Engineering Nobes, David Mechanical Engineering

Department: Department of Mechanical Engineering

Specialization: Engineering Management

Date accepted: 2012-08-08T13:54:40Z

Graduation date: 2012-11

Degree: Master of Science

Degree level: Master's

Abstract: An experimental apparatus was developed capable of measuring changes in fluid viscosity occurringdue to acoustic stimulation. Controls allowed measurements at simulated oil sand reservoirpressures and temperatures with near real-time data visualization. Calibration was performed usingNIST-traceable viscosity standards. Parametric acoustic excitation experiments were performed onbitumen, bentonite slurries, and viscosity standards at 500psi static pressure, 20-80°Ctemperatures, ±100-400psi acoustic pressures, and 5-20Hz sinusoidal frequencies.The viscosities of bitumen and NIST standards were unaffected by excitation at any of theseamplitudes-frequencies. Bentonite showed viscosity reductions as large as 75% with a positivecorrelation observed between acoustic excitation amplitude and magnitude of reduction.Frequency variation had minimal to no effect on viscosity. Bentonite viscosities quickly approachedminimum values after the start of stimulation but took hours to plateau. Once stimulation ceased,slurries recovered to their pre-stimulated viscosities. Viscometer damage that occurred duringtesting prevented collection of results for oil sand.

Language: English

DOI: doi:10.7939-R3JS5N

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.





Author: Evans, Marc David

Source: https://era.library.ualberta.ca/



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