eprintid: 881
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/08/81
datestamp: 2023-11-09 15:49:01
lastmod: 2023-11-09 15:49:01
status_changed: 2023-11-09 15:38:39
type: conference_item
metadata_visibility: show
creators_name: Daud, H.
creators_name: Yahya, N.
creators_name: Sagayan, V.
creators_name: Talib, A.M.
title: Magnitude vs Low frequency EM waves for sea bed logging applications
ispublished: pub
keywords: Airwaves; Direct waves; Reflected waves; Refracted waves; Seabed logging, Anoxic sediments; Computer software; Electric fields; Electromagnetic waves; Electromagnetism; Hydrocarbons; Seawater; Sedimentology; Signal receivers, Electromagnetic logging
note: cited By 5; Conference of 2010 IEEE Asia-Pacific Conference on Applied Electromagnetics, APACE 2010 ; Conference Date: 9 November 2010 Through 11 November 2010; Conference Code:84329
abstract: The new emerging technique for finding resistive layers in the subsurface which can be hydrocarbon-saturated reservoirs using Marine controlled source electromagnetic (CSEM) is called seabed logging (SBL). It uses a mobile horizontal electric dipole (HED) source which generates ultra low frequency (0.1 - 10 Hz) but powerful electromagnetic signal while being towed at about 30 - 40m above an array of seafloor electric field receivers. These arrays of receivers will receive signal in the form of direct waves, air waves, reflected waves and refracted waves and is measured in the form of amplitude and phase. The amplitude and phase of this signal depend on the resistivity of the mediums that they travel. Hydrocarbon is known to have high resistivity value of 30 - 500Ωm, in contrast to conductive sea water of 0.5 - 2 Ωm and sediments of 1 - 2Ωm. This paper will investigate and discuss the effect of these receivers readings in term of direct waves, air waves, reflected waves and guided waves as we increased the frequency value from 0.01Hz to 10Hz. Using simulator that has been developed using MATLAB software we will set up a forward model that contains air, sea water, sediments and hydrocarbon reservoir with their predefined resistivity values. From here we shall discuss the trend on wave amplitude obtained at different frequency values. © 2010 IEEE.
date: 2010
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-79953064697&doi=10.1109%2fAPACE.2010.5720092&partnerID=40&md5=93399b2634e2b70caf095f676113dee4
id_number: 10.1109/APACE.2010.5720092
full_text_status: none
publication: 2010 IEEE Asia-Pacific Conference on Applied Electromagnetics, APACE 2010 - Proceedings
place_of_pub: Port Dickson
refereed: TRUE
isbn: 9781424485666
citation:   Daud, H. and Yahya, N. and Sagayan, V. and Talib, A.M.  (2010) Magnitude vs Low frequency EM waves for sea bed logging applications.  In: UNSPECIFIED.