Geotechnical Control of the Borehole Drilling by Phasometric Method

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Artem Bykov, Dmitry Surzhik, Vasilyev G. S., Kuzichkin O. R., Bondarik K.V

Abstract

To optimize the rotation parameters of the drill and reduce the load on it during the drilling process, it is necessary to have information about the composition of the layers of the geological environment through which it passes. This information will reduce the wear of technical equipment and tools, as well as allow to plot optimal drilling trajectories and track the penetration of the drill into the target layer of the geological environment. This issue is especially relevant for the mining industry, where work is carried out at great depths with a complex structure of soil and rocks. Effective extraction of this information can be obtained by monitoring the phase changes of the recorded electrical signals from the receiving lines of the electrodes of the geoelectric monitoring system. The paper considers the general mechanism of implementation of the phasometric method in relation to the tasks of monitoring the drilling process, describes the equipment, as well as laboratory and field experiments to study the effectiveness of monitoring the drilling process by the phasometric method. The study of the dynamics of changes in the phase signals of the receiving lines of the electrodes during passage through the layers of soil with different electrical characteristics, which affects the change in the parameters of the recorded geoelectric signals. The research results are accompanied by graphic material confirming the possibilities of the proposed method and the prospects of its application in the extractive industry to optimize the parameters of drilling wells in real time

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