Rheological properties of non-Newtonian crudes

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dc.contributor.advisorFlumerfelt, Raymond W.
dc.contributor.committeeMemberLuss, Dan
dc.contributor.committeeMemberBannerot, Richard B.
dc.creatorPetrellis, Nicholas Christos
dc.date.accessioned2022-11-01T21:57:10Z
dc.date.available2022-11-01T21:57:10Z
dc.date.copyright1971-08
dc.date.issued1971
dc.description.abstractAn investigation of the non-Newtonian, time-dependent, flow properties of crudes at or below their pour points is reported. Experimental observations were made in cone-and-plate and Couette geometries under various shear rate and temperature conditions. The observations provided the basis for the development of a kinetic and rheological model which quantitatively describes the shear degradation and equilibrium behavior exhibited by these materials. The structure "reaction" is characterized by a second order equation and the rheological equation of state is written in terms of a Newtonian stress and structural stress component, the latter involving a yield stress and a non-Newtonian plastic viscosity. The equilibrium behavior as represented by the equilibrium viscosity is found to show a modified Herschel-Bulkley type dependence on shear rate, also involving an infinite shear rate viscosity. Preliminary data on the effects of thermal history and aging are also reported, showing the relative importance of these factors to the rheological properties.
dc.description.departmentChemical and Biomolecular Engineering, Department of
dc.format.digitalOriginreformatted digital
dc.format.mimetypeapplication/pdf
dc.identifier.other13637606
dc.identifier.urihttps://hdl.handle.net/10657/12543
dc.language.isoen
dc.rightsThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.
dc.titleRheological properties of non-Newtonian crudes
dc.type.dcmiText
dc.type.genreThesis
dcterms.accessRightsThe full text of this item is not available at this time because it contains documents that are presumed to be under copyright and are accessible only to users who have an active CougarNet ID. This item will continue to be made available through interlibrary loan.
thesis.degree.collegeCullen College of Engineering
thesis.degree.departmentChemical Engineering, Department of
thesis.degree.disciplineChemical Engineering
thesis.degree.grantorUniversity of Houston
thesis.degree.levelMasters
thesis.degree.nameMaster of Science

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