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SCATTERING BY A DIELECTRIC CYLINDER FOR SEABED LOGGING A MATHEMATICAL MODELING APPROACH

Supendi, Gerhana Sasongko (2009) SCATTERING BY A DIELECTRIC CYLINDER FOR SEABED LOGGING A MATHEMATICAL MODELING APPROACH. UNSPECIFIED. (Unpublished)

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Abstract

A method of predicting hydrocarbon reservoirs by using seismic survey and analysis has been implemented over decades. This method has shown pretty good approach of locating the presence of hydrocarbon layer especially in vertical dimension (thick well). The problem is that this method is not quite suitable for locating the hydrocarbon layer in lateral dimension (thin layer). Engineers came up with technique called Seabed Logging to complete the technique. It uses the fact that the hydrocarbon layer has much higher resistivity than its surroundings. The objective of this Final Year Project is to study and simulate one way of doing Seabed Logging by analyzing the direct wave and the scattered wave from the hydrocarbon layer. An Oil and Gas Journal by Statoil published in 2002 is studied and referred as the main source. A solution of scattering by dielectric cylinder of arbitrary cross section shape published by Jack H. Richmond in his IEEE Transactions on Antennas and Propagation journal is also employed. Mathematical model is used as approximation since it is difficult and expensive to do experiment or to get the exact complete data of reservoir maps and structures. The scope of this project is limited to combining these techniques to calculate the direct wave and the wave scattered from the hydrocarbon layer modeled as dielectric cylinder. By working inversely, the signal received from the antennas is analyzed to yield information about the characteristics of the seabed and the hydrocarbon layer. The contrast between the hydrocarbon layer (relatively high resistivity) and seabed (relatively low resistivity) gives different wave responses and provides information of the presence of hydrocarbon reservoir beneath seabed. Combining the seismic technique and Seabed Logging would yield a higher preciseness in predicting and locating the presence of hydrocarbon reservoirs and thus reducing the costs of drilling uneconomical or dried well.

Item Type: Final Year Project
Subject: UNSPECIFIED
Divisions: Engineering > Electrical and Electronic
Depositing User: Users 5 not found.
Date Deposited: 18 Jun 2012 09:57
Last Modified: 25 Jan 2017 09:44
URI: http://utpedia.utp.edu.my/id/eprint/3263

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