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Effect of Mooring Lines on the Responses of Spar Platforms

Spar platform, a competitive alternative structure for deepwater oil field development is modelled as a rigid body with six degree -of-freedom, connected to the sea floor by multi-component catenary mooring lines, which are attached to the spar platform at the fairleads. Since this spar platform...

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Main Author: Mohd Zin, Nur Azimah
Format: Final Year Project
Language:English
Published: Universiti Teknologi Petronas 2008
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://utpedia.utp.edu.my/7178/1/2008%20-%20Effect%20of%20mooring%20lines%20on%20the%20responses%20of%20spar%20platform.pdf
http://utpedia.utp.edu.my/7178/
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spelling my-utp-utpedia.71782013-09-30T16:24:54Z http://utpedia.utp.edu.my/7178/ Effect of Mooring Lines on the Responses of Spar Platforms Mohd Zin, Nur Azimah TA Engineering (General). Civil engineering (General) Spar platform, a competitive alternative structure for deepwater oil field development is modelled as a rigid body with six degree -of-freedom, connected to the sea floor by multi-component catenary mooring lines, which are attached to the spar platform at the fairleads. Since this spar platform is quite new in deepwater exploration, a lot of studies and researches still need to be done. Therefore in this project, the different type of spar platforms as well as the dynamic responses of spar platform such as surge, heave and pitch are being analyzed and compared by using comparison method based on its different mooring lines configurations. The mathematical results by using Linear Airy Wave Theory, Pierson-Moskowitz Spectrum, Morison Equation and Motion Response Spectrum have been conducted. The frequency domain analysis and time domain analysis have been performed by choosing frequency within 0.05 - 0.3Hz and time series within 0 - 100 seconds. For Neptnne Spar Platform, the maximum profile obtained were 1.9 - 2m for surge, 0.78m for heave and 0.065radian for pitch. These values are within the permissible limits for offshore operations. Also, parametric studies have been made by using different number of mooring lines. It is shows that there is no significant effect on the surge and heave responses even though the stiffness increases as the number of mooring lines increases. Universiti Teknologi Petronas 2008-07 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/7178/1/2008%20-%20Effect%20of%20mooring%20lines%20on%20the%20responses%20of%20spar%20platform.pdf Mohd Zin, Nur Azimah (2008) Effect of Mooring Lines on the Responses of Spar Platforms. 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 TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Mohd Zin, Nur Azimah
Effect of Mooring Lines on the Responses of Spar Platforms
description Spar platform, a competitive alternative structure for deepwater oil field development is modelled as a rigid body with six degree -of-freedom, connected to the sea floor by multi-component catenary mooring lines, which are attached to the spar platform at the fairleads. Since this spar platform is quite new in deepwater exploration, a lot of studies and researches still need to be done. Therefore in this project, the different type of spar platforms as well as the dynamic responses of spar platform such as surge, heave and pitch are being analyzed and compared by using comparison method based on its different mooring lines configurations. The mathematical results by using Linear Airy Wave Theory, Pierson-Moskowitz Spectrum, Morison Equation and Motion Response Spectrum have been conducted. The frequency domain analysis and time domain analysis have been performed by choosing frequency within 0.05 - 0.3Hz and time series within 0 - 100 seconds. For Neptnne Spar Platform, the maximum profile obtained were 1.9 - 2m for surge, 0.78m for heave and 0.065radian for pitch. These values are within the permissible limits for offshore operations. Also, parametric studies have been made by using different number of mooring lines. It is shows that there is no significant effect on the surge and heave responses even though the stiffness increases as the number of mooring lines increases.
format Final Year Project
author Mohd Zin, Nur Azimah
author_facet Mohd Zin, Nur Azimah
author_sort Mohd Zin, Nur Azimah
title Effect of Mooring Lines on the Responses of Spar Platforms
title_short Effect of Mooring Lines on the Responses of Spar Platforms
title_full Effect of Mooring Lines on the Responses of Spar Platforms
title_fullStr Effect of Mooring Lines on the Responses of Spar Platforms
title_full_unstemmed Effect of Mooring Lines on the Responses of Spar Platforms
title_sort effect of mooring lines on the responses of spar platforms
publisher Universiti Teknologi Petronas
publishDate 2008
url http://utpedia.utp.edu.my/7178/1/2008%20-%20Effect%20of%20mooring%20lines%20on%20the%20responses%20of%20spar%20platform.pdf
http://utpedia.utp.edu.my/7178/
_version_ 1739831430852116480
score 13.211869

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