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  5. TO THE PROBLEM OF GEODYNAMIC AND TECHNOGENIC INTERACTION OF GEOLOGICAL ENVIRONMENT IN ORENBURG PRIURALYE

TO THE PROBLEM OF GEODYNAMIC AND TECHNOGENIC INTERACTION OF GEOLOGICAL ENVIRONMENT IN ORENBURG PRIURALYE

DOI

10.24411/1728-323X-2018-15138

Section

Physical geography and biogeography, soil geography and landscape geochemistry

Title

TO THE PROBLEM OF GEODYNAMIC AND TECHNOGENIC INTERACTION OF GEOLOGICAL ENVIRONMENT IN ORENBURG PRIURALYE

Сontributors

A.P. Butolin, Candidate of Geological and Mineralogical Sciences, Associate Professor, Department of Geology, FSBEI of Higher Education «Orenburg State University», Orenburg, Russia.

V.A. Scherba, Candidate of Geological and Mineralogical Sciences, Associate Professor, Department of Ecology and Environmental Management, «Russian State Geological Prospecting University named after S. Orzhonikidze», Moscow, Russia. This email address is being protected from spambots. You need JavaScript enabled to view it.

V.N.Ekzaryan, Doctor of Geological and Mineralogical Sciences, Professor, Head of the Department of Ecology and Nature Management, «Russian State Geological Prospecting University named after S. Orzhonikidze», Moscow, Russia.

Abstract

Aime. The aim of the reseach is to characterize the current state of technogenic and geodynamic interaction of blocks of rocks in the upper part of the lithosphere in the oil and gas bearing area of the Orenburg Urals. Materials and methods. An attempt was made to investigate in detail the causes and consequences of unusual, often unpredictable events, such as the transformation of physical and chemical characteristics of groundwater, the change in the reservoir properties of blocks and layers of sedimentary, magmatic and metamorphic rocks. The changes in hydrogeodynamic and geophysical parameters of rocks that lead to the manifestation of catastrophic events - technogenic earthquakes in the most developed and often densely populated areas with a complex urban and economic infrastructure are considered. Results. The article systematizes information about the history of geological development, the geological structure and tectonic regime of the southeast of the Volga-Urals anteclise within the Orenburg Pre-Ural region. Information is given on the types and degree of man-made loads on geological blocks and structures in connection with the development of oil and gas condensate deposits, the injection of associated formation waters and toxic industrial effluents into deep absorbing layers of carbonate rocks of the Viseisk-Bashkir aquiferous complex. Conclusions. The possibilities of estimating further changes in the geological environment within the region under study are considered, proceeding from the current state of technogenic and geodynamic mutual influence. Recommendations are made on the need to develop a methodology for determining the regulatory impacts of technological processes on the geological environment.                                                     

Keywords

geological environment, oil and gas fields, man-made earthquakes, industrial wastewater, seismic hazard, monitoring

References

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7. Christina Nunez. Tremors linked to oil and gas activities were addressed by two key U.S. agencies this week. National Geographic. Published march 29, 2017. New USGS Maps Show Human-Induced Earthquakes.

8. Ehkzar'yan V.N. Ocenka ehkologicheskih posledstvij v rajonah razrabotki mestorozhdenij poleznyh iskopaemyh. Sergeevskie chteniya. Vypusk 19. Materialy godichnoj sessii Nauchnogo Soveta RAN po problemam geoehkologii, inzhenernoj geologii i gidrogeologii). M.: RUDN, 2017. S. 82-86.[Ekzaryan V.N. Environmental impact assessment in areas of mineral deposits development // Sergeyevskie chteniya. Vypusk 19. Materials of the annual session of the Scientific Council of the RAS on the problems of geoecology, engineering geology and hydrogeology). Moscow: RUDN, 2017. P. 82-86] (in Russian).

8. The total number of Americans at high risk from both natural and human-induced earthquakes this year is about 4 million. Mar 03, 2017.