GEOELECTROPROSPECTING METHOD (VERSIONS) Russian patent published in 2017 - IPC G01V3/08 

FIELD: physics.

SUBSTANCE: according to the invention, for each location of the generator loop, two values of the components of the electromagnetic field (V₁, V₂) are recorded using two generator circuits of different sizes and performing electromagnetic measurements at a common point separately from each of these generator circuits. Herewith the signal is recorded up to times exceeding the value R²σμ, where R is the characteristic size of a larger contour, σ - the highest specific conductivity typical for the area of work, μ - magnetic permeability of the environment of objects. In another embodiment of the invention, for each location of the generator loop, in addition to measurements, the components of the electromagnetic field V₀ in the center of the generator loop, four different values of the components of the electromagnetic field (V₁, V₂, V₃, V₄) are recorded. Herewith four remote measuring sensors are used, each of which is located within the near zone at different distances from the center of the generator loop. The geoelectroprospecting method according to the invention allows to significantly improve the solution of the forecasting problems by isolating and complex interpreting the electromagnetic field components due to the field formation effects, polarizability and superparamagnetism, which allows to detect anomalous zones fixed by standard electroprospecting methods, attached to the real target objects.

EFFECT: creating a technology for electroprospecting works based primarily on the use of multi-layered sounding by the method of field formation, with the isolation and complex interpretation of the components associated with the effects of polarizability and superparamagnetism.

4 cl, 18 dwg, 8 tbl