Abstract:The key of transient electromagnetic wave logging lies in the detection and identification to different interfaces. In this thesis, in order to improve the instrument's sensitivity as well as detection distance, the time domain transient electromagnetic method is adopted to simulate the transient electromagnetic wave response under the high-precision triaxial logging device. The results reveal as follows: the farther the stratum is from the receiving coil, the later the anomaly appears, and the less sensitive it is to the detection of anomalies; the response analysis on the anomaly field indicates that the remote detection distance in the time domain can reach about 50 meters; meanwhile, the transient electromagnetic wave logging response is insensitive to the coil's transmit-receive distance. Therefore, a shorter instrument length can be applied to achieve the remote detection that can only be realized by a longer frequency-domain instrument; when the transient electromagnetic wave encounters high resistance, the propagation speed will accelerate, and its ability to identify the oil-water interface will be enhanced. It can be seen that the transient electromagnetic wave logging expands the application of the thin-bed sensitive logging data in reservoir evaluation, and is of great significance to the development of the electromagnetic wave logging.