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Next generation focused transmitter for deep hydrocarbon reservoir detection in shallow water environment

Marine Controlled Source Electromagnetic (MCSEM) method has been widely accepted by the oil and gas industry to identify the high resistive hydrocarbon targets in the offshore environment. The given name of the method, Seabed Logging (SBL) recently uses a Horizontal Electric Dipole (HED) antenna tha...

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Main Author: MUHAMMAD, RAUF
Format: Thesis
Language:English
Published: 2017
Subjects:
Instrumentation and Control
Online Access:http://utpedia.utp.edu.my/id/eprint/22039/1/Muhammad%20Rauf_G02128_Final%20PhD%20thesis.pdf
http://utpedia.utp.edu.my/id/eprint/22039/
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spelling oai:utpedia.utp.edu.my:220392023-05-15T07:43:19Z http://utpedia.utp.edu.my/id/eprint/22039/ Next generation focused transmitter for deep hydrocarbon reservoir detection in shallow water environment MUHAMMAD, RAUF Instrumentation and Control Marine Controlled Source Electromagnetic (MCSEM) method has been widely accepted by the oil and gas industry to identify the high resistive hydrocarbon targets in the offshore environment. The given name of the method, Seabed Logging (SBL) recently uses a Horizontal Electric Dipole (HED) antenna that transmits low-frequency electromagnetic waves. While producing successful results in deep waters, the shallow water environment posed ambiguities in the received signals due to the waves reflected back from the sea water-air interface, called airwaves. In shallow water, the conventional omnidirectional HED transmits the signal in equal magnitude of the up and down going directions, welcomes the airwaves in larger magnitude thus masking the accurate prediction of hydrocarbon reservoir information. Therefore, there is a pervasive need to modify the conventional antenna that can disperse the airwaves and increase the resolution of the downgoing waves for the higher delineation of the hydrocarbon presence. This research work concerns with the novel design of the antenna given the name High Performance Antenna (HPA), that is capable of the higher resolution of the downgoing waves and decreased airwaves using dispersion. The attributes are achieved by making the straight HED curve. A number of curvatures were simulated in the specified SBL model in model where conventional HED showed its failure with the allocated resistivity contrast of 1:100. The curvature ratio 0.3 provided the best resolution among the other curvatures with the applied current of 1250A, oscillating at 0.125 Hz frequency. To test the specimen, for the first time the lab scale experiment is conducted with most of the elements from the real offshore environment. Thus, with the selection of scale factor 2500, the lab scale curve antenna is designed, simulated and tested in the stratified scale tank. 2017-01 Thesis NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/id/eprint/22039/1/Muhammad%20Rauf_G02128_Final%20PhD%20thesis.pdf MUHAMMAD, RAUF (2017) Next generation focused transmitter for deep hydrocarbon reservoir detection in shallow water environment. PhD. thesis, Universiti Teknologi PETRONAS.
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 Instrumentation and Control
spellingShingle Instrumentation and Control
MUHAMMAD, RAUF
Next generation focused transmitter for deep hydrocarbon reservoir detection in shallow water environment
description Marine Controlled Source Electromagnetic (MCSEM) method has been widely accepted by the oil and gas industry to identify the high resistive hydrocarbon targets in the offshore environment. The given name of the method, Seabed Logging (SBL) recently uses a Horizontal Electric Dipole (HED) antenna that transmits low-frequency electromagnetic waves. While producing successful results in deep waters, the shallow water environment posed ambiguities in the received signals due to the waves reflected back from the sea water-air interface, called airwaves. In shallow water, the conventional omnidirectional HED transmits the signal in equal magnitude of the up and down going directions, welcomes the airwaves in larger magnitude thus masking the accurate prediction of hydrocarbon reservoir information. Therefore, there is a pervasive need to modify the conventional antenna that can disperse the airwaves and increase the resolution of the downgoing waves for the higher delineation of the hydrocarbon presence. This research work concerns with the novel design of the antenna given the name High Performance Antenna (HPA), that is capable of the higher resolution of the downgoing waves and decreased airwaves using dispersion. The attributes are achieved by making the straight HED curve. A number of curvatures were simulated in the specified SBL model in model where conventional HED showed its failure with the allocated resistivity contrast of 1:100. The curvature ratio 0.3 provided the best resolution among the other curvatures with the applied current of 1250A, oscillating at 0.125 Hz frequency. To test the specimen, for the first time the lab scale experiment is conducted with most of the elements from the real offshore environment. Thus, with the selection of scale factor 2500, the lab scale curve antenna is designed, simulated and tested in the stratified scale tank.
format Thesis
author MUHAMMAD, RAUF
author_facet MUHAMMAD, RAUF
author_sort MUHAMMAD, RAUF
title Next generation focused transmitter for deep hydrocarbon reservoir detection in shallow water environment
title_short Next generation focused transmitter for deep hydrocarbon reservoir detection in shallow water environment
title_full Next generation focused transmitter for deep hydrocarbon reservoir detection in shallow water environment
title_fullStr Next generation focused transmitter for deep hydrocarbon reservoir detection in shallow water environment
title_full_unstemmed Next generation focused transmitter for deep hydrocarbon reservoir detection in shallow water environment
title_sort next generation focused transmitter for deep hydrocarbon reservoir detection in shallow water environment
publishDate 2017
url http://utpedia.utp.edu.my/id/eprint/22039/1/Muhammad%20Rauf_G02128_Final%20PhD%20thesis.pdf
http://utpedia.utp.edu.my/id/eprint/22039/
_version_ 1768010129486118912
score 13.211869

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