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Application of SeaBed Logging (SBL) technology to Support 3D Seismic and AVO Analysis in Identification of Hydrocarbon

WONG , ENG Y AO (2008) Application of SeaBed Logging (SBL) technology to Support 3D Seismic and AVO Analysis in Identification of Hydrocarbon. Masters thesis, Universiti Teknologi Petronas.

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Abstract

SeaBed Logging (SBL) method came into oil and gas exploration industry and provides geoscientists another tool to explore a prospect by looking at another physical property, i.e. resistivity, besides acoustic impedance that can be obtained from seismic and AVO analysis. SBL technology is no doubt a tool to complement seismic interpretation and AVO analysis by offering an independent data set to exploration works. However, as the technology is purely based on resistivity contrast down-earth, there're still rooms for discussion to validate whether or not the technology is capable enough to help in delineating the true geology of an area. This study presents the result of a 20 SBL survey over 2 deep water prospects, Prospect A and Prospect B, in Block 2F, Rajang Delta, offshore Sarawak. These 2 prospects represent 2 cases that show different seismic interpretation in terms of amplitude anomalies and different AVO analysis responses. The 30 seismic and AVO analysis of Prospect A do not show any amplitude anomaly at the crest of the structure but at the flank of the structure. Meanwhile for Prospect B, 30 seismic shows a high amplitude anomaly at both crest and flank sides of the structure; and a Class Ill AVO response showed in the AVO analysis over the crest of Prospect B. The result of SBL survey over both Prospect A and Prospect B are then collaborated to the seismic interpretation and AVO analysis. It is clearly showed that the SBL responses matches well with the high amplitude features seen in seismic and AVO analysis of Prospect B; and SBL only shows weak response in the case where both seismic and AVO analysis hardly show anything like in Prospect A.

Item Type: Thesis (Masters)
Academic Subject : Academic Department - Petroleum Geosciences - Petrophysics - Petrophysical data acquisition
Subject: Q Science > QE Geology
Divisions: Geoscience and Petroleum Engineering
Depositing User: Users 2053 not found.
Date Deposited: 30 Sep 2013 16:55
Last Modified: 25 Jan 2017 09:45
URI: http://utpedia.utp.edu.my/id/eprint/7790

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