Abstract
A study was carried out of the electrodynamic response of an anisotropic medium over hydrocarbons under the influence of probing signals for pulsed and dual-frequency modes with a predominance of high-frequency signals. The characteristics of the geological profile above hydrocarbon deposits were studied using pulse signals depending on the carrier frequency and period of the radio pulse. For the dual-frequency signal mode, the dependences of the material and phase components of the surface impedance of the studied medium over oil and gas fields were modeled depending on the amplitude and frequency ratios. It has been established that an increase in the dielectric constant of the geological profile above the deposits leads to a decrease in resonance frequencies and the values of the absolute component of surface impedance Ż11. The revealed manifestations of anomalous effects expand information about the characteristics of the environment above deposits under the influence of pulsed electromagnetic waves and are of practical interest for exploratory geophysics. The results obtained can be used for electrical prospecting when creating equipment for detecting oil and gas fields.
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