STUDY ON THE EFFECT OF FREQUENCY AND MEDIUM RESISTIVITY ON THE PROPAGATION OF ELECTROMAGNETIC (EM) WAVE

This project focuses on the effect of frequency and medium resistivity on the
propagation of Electromagnetic (EM) wave toward its application in Sea-Bed
Logging (SBL). SBL is an application of the Marine Controlled Source
Electromagnetic (CSEM) method where the idea is to guide the electromagnetic
energy in the thin resistive medium within conductive sediments. This method has
been introduced for long time before but it application in SBL is relatively new. The
application in hydrocarbon detection has not been developed until recently due to the
problem of uncertainty of significant response from thin resistive layer where the
EM energy is easily attenuated in sea water. This project will apply the same concept
of SBL by using a scaled tank. Throughout the experiments, the value of frequencies
is varied and different medium resistivity is used. Then, the data is analyzed and
compared with the theoretical value and from there, the effects of the frequency and
medium resistivity are determined. The data is taken by considering many
perspectives and patterns in the real offshore structure.