Some peculiarities of the polarization structure of the electromagnetic field at high frequencies in geological sections: mathematical solutions and experiments
- Авторлар: Abramov V.Y.1
-
Мекемелер:
- Peoples’ Friendship University of Russia (RUDN University)
- Шығарылым: Том 21, № 2 (2020)
- Беттер: 123-130
- Бөлім: Earth science
- URL: https://journals.rcsi.science/2312-8143/article/view/327449
- DOI: https://doi.org/10.22363/2312-8143-2020-21-2-123-130
- ID: 327449
Дәйексөз келтіру
Толық мәтін
Аннотация
The effects of induced polarization (IP) in the ore bodies and host rocks in the frequencies above 1 000 000 Hz were considered. The phase response of the complex resistivity (CR) system equipment “Geozond” have been explored instrumentally. The reliability of high-frequency IP measurements was confirmed by independent verification by mining activities. The results confirm the presence of IP effects in the ore bodies and host rocks. They suggest the necessity to account for IP effects in the interpretation of electromagnetic data, in particular, in induction logging data. The purpose of mathematical computer modeling in this work was to study the propagation of a high frequency electromagnetic field from a linear current source in a material medium by solving Maxwell's equations using finite-difference approximations (iterations) in the time domain. The measurement results were processed according to a well-known scheme, using the method of iterative selection in automatic mode. This allows to use this method for end-to-end calculation of electromagnetic fields in complex three-dimensional inhomogeneous structures.
Негізгі сөздер
Авторлар туралы
Vladimir Abramov
Peoples’ Friendship University of Russia (RUDN University)
Хат алмасуға жауапты Автор.
Email: geophy-rudn@mail.ru
Associate Professor of Department of Geology, Mining and Oil & Gas Engineering of RUDN University; Candidate of Geological Sciences
6 Miklukho-Maklaya St, Moscow, 117198, Russian FederationӘдебиет тізімі
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