Welcome To UTPedia

We would like to introduce you, the new knowledge repository product called UTPedia. The UTP Electronic and Digital Intellectual Asset. It stores digitized version of thesis, dissertation, final year project reports and past year examination questions.

Browse content of UTPedia using Year, Subject, Department and Author and Search for required document using Searching facilities included in UTPedia. UTPedia with full text are accessible for all registered users, whereas only the physical information and metadata can be retrieved by public users. UTPedia collaborating and connecting peoples with university’s intellectual works from anywhere.

Disclaimer - Universiti Teknologi PETRONAS shall not be liable for any loss or damage caused by the usage of any information obtained from this web site.Best viewed using Mozilla Firefox 3 or IE 7 with resolution 1024 x 768.

GEOPHYSICАL АNАLYSIS OF SHАLLOW GАS CLOUD АFFECTED REGION IN MАLАY BАSIN USING OBC DАTА

ABDEEN OSMAN, SUHAIB AHMED (2015) GEOPHYSICАL АNАLYSIS OF SHАLLOW GАS CLOUD АFFECTED REGION IN MАLАY BАSIN USING OBC DАTА. Universiti Teknologi PETRONAS. (Submitted)

[img] PDF
Restricted to Registered users only

Download (4Mb)

Abstract

Many fields in the Malay Basin suffer from the presence of shallow gas cloud which is one of the major issues in the basin. Seismic images underneath the gas cloud often show poor resolution which makes the geophysical interpretation difficult. This effect can be noticed from the amplitude dimming, loss of high-frequency energy, and phase distortion. The main objective of this project is to reduce the effects of shallow gas cloud in seismic images. This in turn will enhance the geophysical interpretation of the subsurface structures. Methods of investigations in this project were divided into two parts: field work and geophysical analysis. Two outcrops located in Seri Iskandar were investigated during the field work in order to provide a geological description of the area. After that, mapping components such as topography map, geological map, and cross-section were generated for Seri Iskandar area. On the other hand, Ocean Bottom Cable (OBC) data of Sepat field is used for the geophysical interpretation. Faults and horizons were picked and then both post-stack and seismic attributes were implemented to the seismic section. Field work results showed that the lithology of the outcrops consist mainly of sandstone, mudstone, and siltstone. Sedimentary structures have been recognized as lamination and fractures infill in both outcrops. In addition, the application of post-stack processes showed some improvement in the seismic images, particularly by applying time gain and median filter processes. Moreover, the combination of structural smoothing and variance displayed the correct position of faults.

Item Type: Final Year Project
Academic Subject : Academic Department - Petroleum Geosciences - Petrophysics - Openhole log interpretation
Subject: G Geography. Anthropology. Recreation > G Geography (General)
Divisions: Geoscience and Petroleum Engineering
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 22 Nov 2018 14:39
Last Modified: 22 Nov 2018 14:39
URI: http://utpedia.utp.edu.my/id/eprint/18180

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...