GEOELECTRIC SURVEY METHOD Russian patent published in 2011 - IPC G01V3/16 

FIELD: physics; geophysics.

SUBSTANCE: invention relates to electrical prospecting on alternating current excited in the earth using an inductive method, and can be used in searching for and prospecting for conducting objects in non-conducting and conducting medium. Low-frequency electromagnetic field is excited using a vertical magnetic dipole moved on parallel profiles at a given height. The time and coordinates of the points where the dipole is located are recorded. Cartesian components of the electric field strength and magnetic induction are measured on the day surface of the earth at a fixed point. The measurement time is recorded. The corresponding time for measuring the field and the position of the dipole is used to determine coordinates of their relative position. Vector components of the electromagnetic field in a cylindrical coordinate system are found and their values are assigned to the points where the dipole is located. The value of their deviation from normal values for homogeneous medium is used to identify parts of the medium with high electrical conductivity.

EFFECT: high measurement accuracy during area survey.

5 dwg