FIELD: geophysics.
SUBSTANCE: group of inventions refers to geophysics, in particular to electrical exploration research methods, namely to the method of sounding the formation of a field carried out by aircraft means. In an aerial electrical exploration method according to the invention, the registration of the signals from the eddy currents induced in the geological medium is carried out by a group of receiving antennas arranged relatively to each other in height or height and lateral. Values of these spacing are determined in accordance with the previously obtained dependence of the maximum values of the relative anomalies of the IP and/or SCM signal component, calculated from the a priori data on the investigated object, from the values of the above spacing between receiving antennas. After that, for each measurement point, all registered signals are co-processed with separation into an induction component, IP and / or SCM components. Aerial electrical exploration device according to the invention is characterized in that it comprises an electromagnetic system towed by aircraft means, including a generator circuit and a group of receiving antennas, registering signals from secondary eddy currents induced in a geological medium. Receiving antennas in this group are installed with spacing relatively to each other in height or height and lateral. Minimum values of these spacing are determined in accordance with the previously obtained dependence of the maximum values of the relative anomalies of the IP and/or SCM signal component, calculated from the a priori data on the investigated object, on the values of spacing between the receiving antennas.
EFFECT: increased information content of pulsed aerial electrical exploration by obtaining more reliable information on the electrical conductivity, electric and magnetic polarizability of search facilities in the area of conducting electrical exploration.
8 cl, 12 dwg, 4 tbl
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Authors
Dates
2018-04-28—Published
2017-04-24—Filed