Assessing geodynamic activity of rock by the borehole survey results

Abstract

Research objective is to assess the modern geodynamic environment of the geological environment through borehole measurements of signals of geoacoustic emission and electromagnetic radiation. Research relevance is due to the need to identify geodynamically active zones and areas of increased rock fracturing in wells. Methods of research. Rock geodynamic activity was studied in a well of the North-Taratashsky area of a magnetite quartzite deposit in the Chelyabinsk region. MESh-42 hardware and software complex designed for synchronous registration of geoacoustic emission and electromagnetic radiation signals was used to solve this problem. Geoacoustic emission (GAE) and electromagnetic radiation (EMR) signals were recorded using the shuttle logging technique, which makes it possible to identify zones of rock geodynamic activity along well sections and track the dynamics of these sections in time. Results. The results of the method of geoacoustic emission and electromagnetic radiation signals shuttle logging in well no. 7 of the North-Taratashsky area are shown. Conclusions. In the course of geoacoustic emission and electromagnetic radiation signals studies in well no. 7 of the Severo-Taratashsky area according to the shuttle logging method, zones of increased stress in the geological environment and areas of increased fracture formation were identified, which, in turn, made it possible to subdivide the studied interval according to the geodynamic activity of rocks