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THE RELATION OF STRUCTURE TO THE GAS SEEPAGE OCCURRENCE

In oil and gas industry, seismic data is one of the fundamental data in hydrocarbon exploration. The jobs of seismic interpreters are meaningful to the industry. Good interpretation will lead to meaningful information. However, there are some challenges in interpreting the seismic section. One of th...

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Main Author: BINTI WAN ISMAIL, WAN NURSYAZANA SYARAH
Format: Final Year Project
Language:English
Published: Universiti Teknologi PETRONAS 2015
Subjects:
G Geography (General)
Online Access:http://utpedia.utp.edu.my/18178/1/THESIS_16747.pdf
http://utpedia.utp.edu.my/18178/
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spelling my-utp-utpedia.181782018-11-22T14:39:41Z http://utpedia.utp.edu.my/18178/ THE RELATION OF STRUCTURE TO THE GAS SEEPAGE OCCURRENCE BINTI WAN ISMAIL, WAN NURSYAZANA SYARAH G Geography (General) In oil and gas industry, seismic data is one of the fundamental data in hydrocarbon exploration. The jobs of seismic interpreters are meaningful to the industry. Good interpretation will lead to meaningful information. However, there are some challenges in interpreting the seismic section. One of the challenges is the existence of gas cloud in the subsurface. Gas cloud gives blurry and chaotic image in seismic section which prevents geophysicist from seeing the geological image behind the gas cloud. Gas cloud can also be related to fractures in the structure which allows gas to migrate upwards through the fractures and causes the blurry image in the seismic section. Therefore, to get better understanding on the fractured area, a geological field work was held to study the characteristic of fractured structure and how was it affected by stress force. Other elements considered are the clastic sediments and age of the rock. Strong understanding in the geological view enhances our fundamental knowledge of the study and further aid in seismic work and interpretation. Stress effect to the Seri Iskandar Outcrops were studied by taking strike and dip measurements of the fractures and transfer the readings into a rose diagram for each outcrop. A 3D seismic section of Sepat Field is then studied and interpreted. After dividing the seismic data into seismic units by horizon interpretation, the structural geology of the field is then studied and interpreted. A number of fractures and faults are identified at the gas cloud zone as well as gas seepage. From the literature review of Malay Basin tectonic history and seismic interpretation done, it is concluded that fractures and faults may create the migration path for the gas seepage occurrence in Sepat Field. Universiti Teknologi PETRONAS 2015-09 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/18178/1/THESIS_16747.pdf BINTI WAN ISMAIL, WAN NURSYAZANA SYARAH (2015) THE RELATION OF STRUCTURE TO THE GAS SEEPAGE OCCURRENCE. Universiti Teknologi PETRONAS. (Submitted)
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 G Geography (General)
spellingShingle G Geography (General)
BINTI WAN ISMAIL, WAN NURSYAZANA SYARAH
THE RELATION OF STRUCTURE TO THE GAS SEEPAGE OCCURRENCE
description In oil and gas industry, seismic data is one of the fundamental data in hydrocarbon exploration. The jobs of seismic interpreters are meaningful to the industry. Good interpretation will lead to meaningful information. However, there are some challenges in interpreting the seismic section. One of the challenges is the existence of gas cloud in the subsurface. Gas cloud gives blurry and chaotic image in seismic section which prevents geophysicist from seeing the geological image behind the gas cloud. Gas cloud can also be related to fractures in the structure which allows gas to migrate upwards through the fractures and causes the blurry image in the seismic section. Therefore, to get better understanding on the fractured area, a geological field work was held to study the characteristic of fractured structure and how was it affected by stress force. Other elements considered are the clastic sediments and age of the rock. Strong understanding in the geological view enhances our fundamental knowledge of the study and further aid in seismic work and interpretation. Stress effect to the Seri Iskandar Outcrops were studied by taking strike and dip measurements of the fractures and transfer the readings into a rose diagram for each outcrop. A 3D seismic section of Sepat Field is then studied and interpreted. After dividing the seismic data into seismic units by horizon interpretation, the structural geology of the field is then studied and interpreted. A number of fractures and faults are identified at the gas cloud zone as well as gas seepage. From the literature review of Malay Basin tectonic history and seismic interpretation done, it is concluded that fractures and faults may create the migration path for the gas seepage occurrence in Sepat Field.
format Final Year Project
author BINTI WAN ISMAIL, WAN NURSYAZANA SYARAH
author_facet BINTI WAN ISMAIL, WAN NURSYAZANA SYARAH
author_sort BINTI WAN ISMAIL, WAN NURSYAZANA SYARAH
title THE RELATION OF STRUCTURE TO THE GAS SEEPAGE OCCURRENCE
title_short THE RELATION OF STRUCTURE TO THE GAS SEEPAGE OCCURRENCE
title_full THE RELATION OF STRUCTURE TO THE GAS SEEPAGE OCCURRENCE
title_fullStr THE RELATION OF STRUCTURE TO THE GAS SEEPAGE OCCURRENCE
title_full_unstemmed THE RELATION OF STRUCTURE TO THE GAS SEEPAGE OCCURRENCE
title_sort relation of structure to the gas seepage occurrence
publisher Universiti Teknologi PETRONAS
publishDate 2015
url http://utpedia.utp.edu.my/18178/1/THESIS_16747.pdf
http://utpedia.utp.edu.my/18178/
_version_ 1739832471031119872
score 13.211869

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