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Study of the Magnetic Properties of Geological Environment in Super Deep Boreholes by the Magnetometry Method

  • G. V. IgolkinaEmail author
Conference paper
Part of the Springer Proceedings in Earth and Environmental Sciences book series (SPEES)

Abstract

The purpose of the article: obtain new data of magnetic fields, magnetization, and magnetic susceptibility of rocks at large depths under conditions of their natural location. Solve technological problems associated with the detection of metal in the walls of wells and near borehole space. Methods: for magneto metric studies, magnetometers-inclinometers have been developed at the Institute of Geophysics of the Ural Branch of the Russian Academy of Sciences, which allow continuous measurements of the magnetic susceptibility of rocks (χ), the vertical component (Za) and whole vector of the horizontal component (Ha) of the geomagnetic field; magnetic azimuth (Am) and zenith angle (φ) of the well. Results: the capabilities of the well magnetometry method for studying the magnetic properties of rocks and the refinement of the litho logical and stratigraphic characteristics of the Kola SG-3, Krivoy Rog SG-8, Ural SG-4, Muruntau SG-10, Saatlinsk SG-1, Timan-Pechora SG-5, Kolvin, Vorotilov, Tyumen SG-6, Novo-Elkhovsk, Tyrnyauzsk super deep wells. Conclusions: it was showed the interrelation of magnetic characteristics with depth, age and litho logical composition of rocks was studied. Analysis of well magnetometer and MEP data allowed establishing the boundary of pyrite-pyrrhotine transition in the gold ore zone. It is shown the possibility of borehole magnetometry for solving paleomagnetic problems for determining the magnetization of rocks.

Keywords

Borehole magnetometry Magnetic characteristics Super deep well Magnetic susceptibility Geomagnetic field Magnetization of rocks Method Dolerite Pyrrhotite 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Institute of Geophysics UB RASYekaterinburgRussian Federation

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