��Ժ��׿ɿ�Դ��ŷ�( MCSEM) ��������Դ��̽�е�ʵ���ԣ�Ӧ��ʸ������Ԫ�����˶���Ƶ�ʵ�ˮƽ��żԴ�����ų�ʶ���������ʵ���о���������ʸ������Ԫ�Ժ��׵�3D ģ�ͽ�����������ֵģ�⡣����MCSEM �ܽϺõ�ʶ��������; ��һ����ĵ糡��������������dz���²��ײ�������㣬��ʵ��Ƶ���ڣ��糡ԴƵ��Խ�߶�������ʶ������Խǿ��ͬʱ֤ʵ��MCSEM ʶ���������ǽ����ڲ������ۻ����ϵġ�

We studied the feasibility of frequency domain submarine electromagnetic method in the exploration of oil and gas�� In order to distinguish the spatial reservoir filled with hydrocarbon��we established three-dimensional seabed models with a horizontal electric-dipole source�� With numeric forward simulation of models by vector finite element method��it shows that: the MCSEM can well identify hydrocarbon layers; while it is difficult to recognize reservoir in the shallow water which was concluded by the normalized amplitudes of deep water and shallow water; and with higher frequency��the identifiying ability will be better within experiment frequencies�� The results prove that the identification of hydrocarbon layers by the MCSEM was established on the basis of the theoretical guided wave��