Method and system for mapping resistivity contrasts of sub superfu00eccie and method to observe that a pulse response of earth is correct

摘要

Method and system for mapping resistivity contrasts of sub superfu00eccie, and method to observe that a pulse response of earth is correct.Method for mapping resistivity contrasts of subsuperficie comprising electromagnetic transient measurements of multi - channel (MTEM) using pclo less a source with electrical input current electrodes grounded or a magnetic source with current in a loop or multi loop D And wire, and at least one receiver or electric field or magnetic field.To measure the response of the earth resulting from simultaneously in each receiver using a system recorder known, to measure the response of the system by measuring directly the current in the wire in the source using effectively the same system recorder, use the system response measure to recover the impulse response Of the earth from each rcsposta earth measure, and create from such impulse responses,A representation of the sub surface resistivity contrasts.