Electromagnetic Methods of Searching and Definition of Hydrocarbon Deposits

Abstract

The article studies the characteristics of an anisotropic medium over hydrocarbons with the complex use of electromagnetic geo-exploration methods. The simulation of the components of dielectric permittivity tensors in the mode of amplitude-modulated, frequency-modulated, amplitude-frequency-modulated and radio pulse signals is carried out. The frequencies of the electron plasma and electron cyclotron resonances for the specified regimes are established. A study was made of the influence of modes of probing signals on the characteristics of an anisotropic medium above deposits and the components of the dielectric tensor. The effect of particle concentration variation on the real components of the components of the dielectric permittivity of an anisotropic medium above the UVZ is analyzed. Recommendations are given for improving the methods of electrical exploration and their application for prospecting geophysics.

Interaction of two-frequency electromagnetic waves with anisotropic media over hydrocarbon accumulation

“…The propagation of two-frequency EMWs in the medium above the HC deposits in the modes of powerful low-frequency (LF) with coefficients 𝑘 𝐸 ≪ 1, 𝑘 𝜔 ≪ 1 and high-frequency (HF) with coefficients 𝑘 𝐸 ≫ 1, 𝑘 𝜔 ≪ 1 signals is considered in [3,13,14]. However, these sources do not consider the analysis of the third component of the dielectric permittivity tensor of the medium.…”

“…This article is devoted to the analysis of this characteristic. The components of the dielectric permittivity tensor of the medium in the LF mode have the form [3]:…”

“…is a part of the corresponding tensor of dielectric permittivity of the medium above the HC deposits, the components of which in the HF mode have the form [3]:…”

“…Electromagnetic prospecting methods (EMP) for contouring the HC accumulations are very promising and contribute to the further development of works in this direction [2]. The proven methods of field studies [3,4] show their high reliability in comparison with seismic, gravity, and magnetic survey methods.…”

Research methods of geological structures over hydrocarbon accumulation

“…The development of hydrocarbon accumulation exploration methods and the relevance of such works are caused by the increased requirements for the accuracy of hydrocarbon isolation [1][2][3]. The use of electromagnetic waves in the frequency modulation mode leads to the expansion of functional capabilities of prospecting works [4].…”