Modeling electromagnetics on cylindrical meshes with applications to steel-cased wells

Normalized secondary field (NSF) through time. In the time-domain, we compute the NSF by taking the difference between the total magnetic flux at the reciever and the whole-space response and then taking the ratio with the whole-space magnetic flux prior to shutting off the transmitter.

Figure 13:Normalized secondary field (NSF) through time. In the time-domain, we compute the NSF by taking the difference between the total magnetic flux at the reciever and the whole-space response and then taking the ratio with the whole-space magnetic flux prior to shutting off the transmitter.