Analysis of response characteristics of ground-well transient electromagnetic method

The ground-well transient electromagnetic method is a new electromagnetic exploration method derived from the traditional transient electromagnetic method, which can greatly improve the exploration efficiency. In this paper, based on the theory of ground-well TEM, COMSOL finite element software is used to establish the ground-well exploration model, and the corresponding characteristics of transient electromagnetic under different emission current intensity and after the abnormal body conductivity changes under the condition of inhomogeneous formation are studied respectively, laying a foundation for the subsequent inversion work.