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Thermal Shrinkage and Gas Void Formation of Waxy Crude Oil with Additive

The presence of paraffin wax in crude oils especially during the extraction and transportation processes causes problems to the producer, transporter and refiner. There are two critical effects result. First, the pressure drops where the drive efficiency will decrease and the other one is the declin...

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Main Author: Mohd Syuaib Bin Jamaludin, Mohd Syuaib
Format: Final Year Project
Language:English
Published: Universiti Teknologi Petronas 2012
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://utpedia.utp.edu.my/5546/1/DISSERTATION_SYUAIB%23MODIFIED2.pdf
http://utpedia.utp.edu.my/5546/
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spelling my-utp-utpedia.55462017-01-25T09:40:51Z http://utpedia.utp.edu.my/5546/ Thermal Shrinkage and Gas Void Formation of Waxy Crude Oil with Additive Mohd Syuaib Bin Jamaludin, Mohd Syuaib TJ Mechanical engineering and machinery The presence of paraffin wax in crude oils especially during the extraction and transportation processes causes problems to the producer, transporter and refiner. There are two critical effects result. First, the pressure drops where the drive efficiency will decrease and the other one is the decline in term of the mobility of the crude. This report discussed the thermal shrinkage and gas voids formation of waxy crude oil. The effect of final temperature to the volume, pressure and gas composition of the gelled crude is evaluated. As the gelled crude undergoes cooling process or thermal shrinkage, the effect of chemical additives on the formation of gas voids is also investigated. During plant shutdown, high pressure pump is required to move the gelled crude. The presence of gas voids during thermal shrinkage or cooling process indicates the opportunity to reduce the restart pressure by considering the compressibility of the gelled crude. The challenge faced by most engineers and plant operators are to accurately predict the restart pressure. The outcome of this project would be beneficial to oil and gas operating companies in managing the platform as well as to enhanced the profit. Literature reviews on existing studies related to the title of the project have been done prior to the initial phase of the project. The methodologies and results from different studies are compared. The next phase would be the experimental works where the static petroleum crude in the pipeline at seabed level is simulated by the equipments and tools in the laboratory. Besides, an additive is also added to the crude oil which is pour point depressant (PPD). As the crude oil is cooled, formation of gas voids will take place. From here, detailed analysis is done with respect to the three parameters which are gas voids volume, pressure and gas composition. Universiti Teknologi Petronas 2012-05 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/5546/1/DISSERTATION_SYUAIB%23MODIFIED2.pdf Mohd Syuaib Bin Jamaludin, Mohd Syuaib (2012) Thermal Shrinkage and Gas Void Formation of Waxy Crude Oil with Additive. Universiti Teknologi Petronas. (Unpublished)
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Electronic and Digitized Intellectual Asset
url_provider http://utpedia.utp.edu.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Mohd Syuaib Bin Jamaludin, Mohd Syuaib
Thermal Shrinkage and Gas Void Formation of Waxy Crude Oil with Additive
description The presence of paraffin wax in crude oils especially during the extraction and transportation processes causes problems to the producer, transporter and refiner. There are two critical effects result. First, the pressure drops where the drive efficiency will decrease and the other one is the decline in term of the mobility of the crude. This report discussed the thermal shrinkage and gas voids formation of waxy crude oil. The effect of final temperature to the volume, pressure and gas composition of the gelled crude is evaluated. As the gelled crude undergoes cooling process or thermal shrinkage, the effect of chemical additives on the formation of gas voids is also investigated. During plant shutdown, high pressure pump is required to move the gelled crude. The presence of gas voids during thermal shrinkage or cooling process indicates the opportunity to reduce the restart pressure by considering the compressibility of the gelled crude. The challenge faced by most engineers and plant operators are to accurately predict the restart pressure. The outcome of this project would be beneficial to oil and gas operating companies in managing the platform as well as to enhanced the profit. Literature reviews on existing studies related to the title of the project have been done prior to the initial phase of the project. The methodologies and results from different studies are compared. The next phase would be the experimental works where the static petroleum crude in the pipeline at seabed level is simulated by the equipments and tools in the laboratory. Besides, an additive is also added to the crude oil which is pour point depressant (PPD). As the crude oil is cooled, formation of gas voids will take place. From here, detailed analysis is done with respect to the three parameters which are gas voids volume, pressure and gas composition.
format Final Year Project
author Mohd Syuaib Bin Jamaludin, Mohd Syuaib
author_facet Mohd Syuaib Bin Jamaludin, Mohd Syuaib
author_sort Mohd Syuaib Bin Jamaludin, Mohd Syuaib
title Thermal Shrinkage and Gas Void Formation of Waxy Crude Oil with Additive
title_short Thermal Shrinkage and Gas Void Formation of Waxy Crude Oil with Additive
title_full Thermal Shrinkage and Gas Void Formation of Waxy Crude Oil with Additive
title_fullStr Thermal Shrinkage and Gas Void Formation of Waxy Crude Oil with Additive
title_full_unstemmed Thermal Shrinkage and Gas Void Formation of Waxy Crude Oil with Additive
title_sort thermal shrinkage and gas void formation of waxy crude oil with additive
publisher Universiti Teknologi Petronas
publishDate 2012
url http://utpedia.utp.edu.my/5546/1/DISSERTATION_SYUAIB%23MODIFIED2.pdf
http://utpedia.utp.edu.my/5546/
_version_ 1739831240596389888
score 13.211869

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