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Thixotropic behavior of a waxy crude oil from the Malay Basin

Some complex materials, polymer solutions and waxy crude oils included, have been discovered to exhibit thixotropic behaviour. Thixotropy is a phenomenon where the viscosity decreases under constant shear rate followed by a gradual recovery over time when the shear rate is removed. All shear thinnin...

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Main Authors: Kaur, Jaspreet, Jaafar, A
Format: Conference or Workshop Item
Published: 2012
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utp.edu.my/7901/1/Jaspreet-IMTCE.pdf
http://eprints.utp.edu.my/7901/
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spelling my.utp.eprints.79012017-01-19T08:21:58Z Thixotropic behavior of a waxy crude oil from the Malay Basin Kaur, Jaspreet Jaafar, A TJ Mechanical engineering and machinery Some complex materials, polymer solutions and waxy crude oils included, have been discovered to exhibit thixotropic behaviour. Thixotropy is a phenomenon where the viscosity decreases under constant shear rate followed by a gradual recovery over time when the shear rate is removed. All shear thinning fluids must show some degree of thixotropy due to the network structure disruption and spatial rearrangements, resulting in a decrease of viscosity, which do not occur instantaneously. Though in many cases, these changes are rapid and cannot be detected. In pipeline transportation of crude oil, for instance, it is important to characterize the thixotropic behavior of the crude oil in order for the flow characteristics to be well predicted and understood. Various methods have been proposed to quantify thixotropy, including the well-known “thixotropic-loop” tests. In this paper, the thixotropic behavior of a waxy crude oil from the Malay basin is explored together with the effects of temperature. Data showed that the extent of thixotropy increases with the reduction in temperature below the Wax Appearance Temperature of the crude oil. The regeneration of the crude oil structure also exhibited interesting features of the waxy crude oil. 2012 Conference or Workshop Item PeerReviewed application/pdf http://eprints.utp.edu.my/7901/1/Jaspreet-IMTCE.pdf Kaur, Jaspreet and Jaafar, A (2012) Thixotropic behavior of a waxy crude oil from the Malay Basin. In: 8th International Materials Technology Conference and Exhibition, MALAYSIA. http://eprints.utp.edu.my/7901/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Kaur, Jaspreet
Jaafar, A
Thixotropic behavior of a waxy crude oil from the Malay Basin
description Some complex materials, polymer solutions and waxy crude oils included, have been discovered to exhibit thixotropic behaviour. Thixotropy is a phenomenon where the viscosity decreases under constant shear rate followed by a gradual recovery over time when the shear rate is removed. All shear thinning fluids must show some degree of thixotropy due to the network structure disruption and spatial rearrangements, resulting in a decrease of viscosity, which do not occur instantaneously. Though in many cases, these changes are rapid and cannot be detected. In pipeline transportation of crude oil, for instance, it is important to characterize the thixotropic behavior of the crude oil in order for the flow characteristics to be well predicted and understood. Various methods have been proposed to quantify thixotropy, including the well-known “thixotropic-loop” tests. In this paper, the thixotropic behavior of a waxy crude oil from the Malay basin is explored together with the effects of temperature. Data showed that the extent of thixotropy increases with the reduction in temperature below the Wax Appearance Temperature of the crude oil. The regeneration of the crude oil structure also exhibited interesting features of the waxy crude oil.
format Conference or Workshop Item
author Kaur, Jaspreet
Jaafar, A
author_facet Kaur, Jaspreet
Jaafar, A
author_sort Kaur, Jaspreet
title Thixotropic behavior of a waxy crude oil from the Malay Basin
title_short Thixotropic behavior of a waxy crude oil from the Malay Basin
title_full Thixotropic behavior of a waxy crude oil from the Malay Basin
title_fullStr Thixotropic behavior of a waxy crude oil from the Malay Basin
title_full_unstemmed Thixotropic behavior of a waxy crude oil from the Malay Basin
title_sort thixotropic behavior of a waxy crude oil from the malay basin
publishDate 2012
url http://eprints.utp.edu.my/7901/1/Jaspreet-IMTCE.pdf
http://eprints.utp.edu.my/7901/
_version_ 1738655613437607936
score 13.211869

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