this paper put forward a method that converts transient induced voltages into induced magnetic fields in TEM field survey,and Compared with theoretical results showing its feasibility Processing and interpreting of field datas using this method account for the merit, which improved data's signal-to-noise ratio(SNR)and make interpreted depth of apparent resistivity more exac

in order to improve the logging interpretation accuracy,taking a certain area of Huabei Oilfield for example,we use the information of pure water layer and pure mud layer,as well as experimetal data from oil test,water test,well logging etc.