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Monitoring 2019
- Conference date: November 12-15, 2019
- Location: Kyiv, Ukraine
- Published: 12 November 2019
21 - 40 of 110 results
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GEOLOGICAL-STRUCTURAL-THERMO-ATMOGEOCHEMICAL TECHNOLOGY FOR QUICK PREDICTION AND MONITORING OF DANGEROUS GEOLOGICAL PROCESSES AND PHENOMENA IN THE TERRITORY OF UKRAINE
Authors I.D. Bagriy, N.V. Maslun, U.Z. Naumenko, D.M. Bozhezha and S.D. ZubalSummaryThe main scientific and methodological provisions of the developed complex STAGD method, which is designed to solve the problems of monitoring of modern ecologic and furnaceless geological processes, are described. The application of the developed technology contributes to increasing the efficiency of prospecting works and the problem of preservation of the natural environment in the regions of mining and hydrocarbon production in particular is highlighted. A number of methodological tools aimed at environmental protection and rational use of the environment and geological features have been developed. In the course of development of methodological approaches in the process of performed researches possible risks of dangerous processes manifestations, forecast of places of their occurrence were considered in order to make advance technological decisions to reduce their possible consequences. The analysis of the results of complex researches by STAGD near-surface methods and their comparison with the results obtained in the production tunnels have shown the complete coincidence of gas fields and zones of geologically destructive phenomena. Complex system STAGDs based on thermo-atmo-geochemical criteria make it possible to make an operational forecast of gas-dynamic phenomena in the zones of tectonic disturbances and mine workings pollution.
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NEW TECHNOLOGY FOR EXPLORATION OF HYDROGEN ACCUMULATIONS AND FORECAST OF GEODYNAMIC PHENOMENA
Authors I.D. Bagriy, S.O. Kuzmenko, U.Z. Naumenko and S.D. ZubalSummaryAnalysis of the results of the data on the distribution of hydrogen concentrations made it possible to isolate abnormal values and conduct detailed largescale area studies for the purpose of area mapping for prospecting. The results of scientific developments carried out within the framework of scientific and practical search and geoecological research on 165 hydrocarbon objects on land (including mine fields) and in sea areas are given. Reasonably predicted search system criteria, where part of the complex of methodological solutions for the first time in the search practice was used hydrogen. The importance of solving the problem of geo-ecological processes and events in mine workings and wells, which are associated with numerous disasters, is shown. On numerous researches of mine massifs the developed complex of preventive actions and the criteria excluding explosive processes is resulted. Results of research on mapping oil and gas bearing sites at traditional and nontraditional sites have made it possible to create a database of systemic criteria for search technology of structural thermo-atmo-hydrological and geochemical research. Analysis of the results of the data on the distribution of hydrogen concentrations made to conduct detailed largescale area studies for the purpose of area mapping for prospecting.
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REGULATORY FACTORS OF GEOLOGICAL PROCESSES AND EVENTS IN THE CENOZOIC BASIN OF THE CARPATHIAN-BLACK SEA SEGMENT OF TETHYS
Authors P. Gozyk, O. Ivanik, N. Maslun, M. Ivanik, N. Zhabina, G. Kliushyna, Z. Voizizkiy and I. SuprunSummaryAn analysis of the geological structure of the Cenozoic formation complex of the Carpathian-Black Sea segment of Tethys by event-stratigraphic criteria has been worked out. The geomorphological, structural-tectonic, geodynamic, eustatic, climatic, biotic, paleoecological, lithological, sedimentological and seismostratigraphic regulatory factors of influence on the geological structure of different tectonic and geodynamic blocks are characterized. Systematic analyses has identified the processes and events (historical-geological phases of Earth expansion and compression, impact, anoxic, etc.) that are recorded in the different stratons and transitional boundary layers of the Cenozoic deposits and formed the modern geological structure of the study regions. Stratigraphic models and charts of Cenozoic deposits of the Western (Carpathian) and Southern (Black Sea, Crimea, Azov-Black Sea) regions were developed. The different facial systems of the corresponding spatio-temporal levels are identified, the rock-layered complexes, the material composition and the structure of the stratons of the corresponding genesis are determined. Morphostructural, bio-, lithofacial, geodynamic, sedimentological, cyclostratigraphic, volcanic criteria are considered. Processes of the offshore landslides, currents, turbidites are analyzed. The influence of hydrology factors (fluctuations of the sea level and annual runoff) is investigated.
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MONITORING OF THE ECOLOGICAL STATUS OF THE TERRITORIES OF DEVELOPMENT OF POTASSIUM SALT DEPOSITS AND ESTABLISHING THE METOD FOR MINIMIZING ECOLOGICAL RISKS
Authors Y. Khomyn, O. Maniuk, M. Maniuk, H. Horvanko and N. KhovanetsSummaryThe analysis of data concerning the composition of highly minaralized salt brines of potassium deposits within the Precarpathian (in particular, Kalush-Holyn deposit) is carried out; the methods of salt brines disposal is analyzed. It is revealed that traditional approaches to salt brines destruction cannot be considered environmentally acceptable; the only reliable way of the disposal of highly minaralized salt brines is landfilling in depleted hydrocarbon reservoirs nearby. Based on conducted researches, it has been found that the suggested method of disposal of salt brines in depleted hydrocarbon reservoirs is environmentally friendly and ensure the safety of high-mineralized salt brines landfilling for the long-term prospect.
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PROCESSING METHODS OF GEOPHYSICAL SIGNAL DURING MONITORING OF TECHNOGENIC PHENOMENA
Authors I.V. Korniienko, O.I. Liashchuk, I.M. Sashchuk, V.K Zhukovsky and L.I. KolesnykovSummaryTerritorially distributed facilities of the Main Centre of special monitoring (MCSM), carry out a number of geophysical monitoring tasks, one of which is the monitoring of man-made events at the territory of Ukraine. The result of the monitoring is a reliable determination of the parameters of geophysical phenomena, calculation of the consequences of the recorded events and timely provision of the information product to the state authorities. A number of methods and algorithms can be applied in every step of processing of geophysical information in operational and analytical work. The purpose of the work is to analyze and select the optimal method of data processing, taking into account the fact of processing information in real time. It has been shown that neural networks, which have a large number of reference signals, have preference at the stage of event recognition.
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GEOGRAPHIC INFORMATION SYSTEMS IN GEOLOGICAL MONITORING DURING THE CONSTRUCTION OF URBAN UNDERGROUND STRUCTURES
Authors E. Kulikova and A. IvannikovSummaryReduction and prevention of environmental hazards in underground construction is based on the account of all levels of mining and construction production, from the stage of obtaining the geological information, forecasting, modelling, drafting of construction and ending with the choice of effective measures of engineering environmental protection during the operation of facilities. The environmental strategy also includes the study of the dynamics of development in space and in time of the artificially formed ecological system “underground object - rock mass - environment”, i.e. geomonitoring. One of the factors that need to be taken into account during the development of underground space is the impact of underground structures in the process of their construction and operation on the environment, when the natural stress-strain state of the rock mass and its inherent engineering-geological and hydrogeological conditions can significantly change. It is the multifactorial interaction of the underground structure and the environment that makes it necessary to have constant geological monitoring of the underground space at all stages of the life cycle of the structure. The article deals with the use of geographic information systems for the analysis of both current and long-term consequences of the development of underground space in the city.
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GEODYNAMIC CONDITIONS OF NATURAL HAZARDS WITHIN MIDDLE DNIEPER REGION (BASED ON STRUCTURAL-MORPHOMETRIC ANALYSIS)
Authors V.V. Shevchuk, O.M. Ivanik and L.V. TustanovskaSummaryUkraine is characterized by active natural hazards processes within different structural and tectonic and landscape-climatic zones. Within the Middle Dnieper Region, the gravitational processes are most widespread. The determining factors of these processes are lithologic and stratigraphic conditions; hydrogeological regime; structural and textural features of rocks; geomorphology of slopes. The second category of factors includes dynamic processes, erosion, weathering, tectonic regime of the area, and anthropogenic impacts. The basis of studies is the structural-morphometric method. Structural morphometry, aimed at investigation of various tectonic structures and vertical movements of the earth’s crust, is the tool to identify the genetic relation between geomorphological and tectonic processes. As a result of the structural-morphometric studies, a number of morphometric models and maps have been built. The most informative from the natural hazards forecasting point of view are the maps of residual relief. On the basis of comprehensive geological-geomorphologic studies, the influence of tectonic movements and exogenous geological factors on the development of natural hazards within the Middle Dnieper Region has been determined. According to the data of structural-morphometric analysis, local structures have been allocated, which are characterized by the formation and activation of hazardous geological processes. They are located mostly at the right steep slope of Dnieper River. Created models are the basis for forecasting of hazardous geological processes.
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MONITORING OF GEODYNAMIC PROCESSES IN THE DEVELOPMENT OF HYDROCARBON DEPOSITS
Authors V. Zhiriy, N. Goptarova, G. Zhuchenko, G. Gorvanko and V. ManiukSummaryHuman activity often leads to environmental degradation, the atmosphere, climate change, and changes in the Earth’s interior are felt by the activation of seismic phenomena, including earthquakes, even in areas that have traditionally been considered aseismic. In this regard, the role of geodynamic exploration of territories is increasing, especially for areas that are most exposed to man-made influence (underground mining, construction of large engineering structures - hydroelectric power stations, nuclear power plants, reservoirs, etc.). It is especially important to know the degree of geodynamic danger for oil production areas that have been exposed to anthropogenic impacts on their surface and subsoil over time (over 30 years). The factors that influence changes in the geological environment are analyzed and geodynamic monitoring is proposed.
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ALGORITHM DEVELOPMENT FOR QUANTITATIVE ASSESSMENT OF RISKS OF GAS TRANSPORTATION PROCESS BY MAIN GAS PIPELINES
Authors V.M. Maniuk, O.R. Maniuk, M.I. Maniuk and M.I. MedvidSummaryThe problem of ensuring technological reliability and environmental friendliness of the natural gas transportation process, basic approaches to risk assessment and management at industrial sites are considered. To improve safety of gas transportation system facilities, a comprehensive risk management system is proposed, as well as a quantitative risk assessment algorithm. The main advantage of the proposed algorithm for the analysis of quantitative risk assessment over the traditional one is that the analysis reveals “vulnerability” in the technological processes; it is further used as a controlled and regulated parameter. While traditional risk assessment techniques focus on determining the risk event, and make it possible to draw conclusions only about the facility risk.
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MONITORING OF HAZARDOUS GEOLOGICAL PROCESSES AS A TOOL FOR RISKS MINIMIZATION ON POST-MINING AREAS IN SOLOTVYNO (TRANSCARPATHIAN REGION, UKRAINE)
Authors S.B. Shekhunova, M.V. Aleksieienkova, S.D. Meijer, S.M. Stadnichenko and E.O. YakovlevSummaryThe consequences of the rock-salt resources usage in Solotvyno, the causes of technogenic environmental emergency situation, activity of governmental structures and the participation of international experts to overcome it are considered. The developed zoning scheme of hazardous geological processes and their consequences are represented. This scheme, constructed in the ESRI software, have been provided basing on expert assessment: former hazardous events frequency and scale, changing of topography and geomorphology, geodetic survey, remote sensing data (satellite imagery, Differential Interferometric Analysis data), authors systematic field observations, coupled with summarized previous research results and monitoring studies of terrain altitude in various years, by different methods and a number of research teams. Zones cover territories ranked by the probability of subsidence, sinkholes formation (ground surface collapses), landslides, karst, suffosion, erosion, floods, flooding, increased mineralization of aquifers used for water supply, etc. The presented scheme is proposed as the basis for ensuring life safety in Solotvyno during the territory development and monitoring system establishment, and then based on the monitoring results obtained, the scheme will be improved, detalized and acquire a predictive focus. Therefore because of the complicated geoecological situation, development and functioning of a permanent geoecological monitoring system for the Solotvyno salt dome structure and adjacent territories is a priority objective.
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DETRITAL ZIRCON AND MONAZITE AS A TOOL FOR RETROSPECTIVE MONITORING OF THE EARTH’S CONTINENTAL CRUST EVOLUTION: CURRENT PROBLEMS AND TASKS
Authors S.E. Shnyukov, O.V. Andreev, I.I. Lazareva, E.T. Tegkaev and A.G. AleksieienkoSummaryThe existing global U-Pb age databases for zircons and monazites from rocks and large detrital populations were jointly analysed with the large original geochemical dataset. This dataset (whole-rock geochemistry, as well as single-grain trace element composition and total Pb age-dating of both minerals) obtained for Precambrian Ukrainian Shield (USh) rock associations, modern sediments and Phanerozoic sedimentary rocks from basins of USh periphery (accumulation reservoirs of eroded upper crustal material) yielded following results: (1) Distribution of SiO2, Zr and LREE in modern sediments and Phanerozoic sedimentary rocks is caused by two factors - sedimentary differentiation and sedimentary homogenization. Second factor erects a set of local contrast maximums in distributions, which reflect composition of upper continental crust. (2) It is vital to develop specialized criteria for zircon and monazite sampling, which can be based on a principle maximum conformity of SiO2, Zr and LREE concentrations in the drainage samples to evaluated concentrations in upper continental crust. (3) Interpretation of zircon and monazite data should take into account the mass of their grains and the concentration of both minerals in the source rocks. Application of this approach would significantly enhance reliability of further continental crust evolution study.
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Land Surface Displacement Study for Kryvyi Rih Mining Area using Radar Interferometry Time Series Analysis
Authors S. Stankevich, I. Piestova, O. Titarenko, V. Filipobich, T. Dudar and M. SvideniukSummaryThe Krivyy Rih urban area is technogenically-affected land, which is under geodynamic disasters risk now. The Kryvyi Rih city central part geodynamic risk mapping using satellite radar interferometry time series analysis and geological/geophysical data are described. Long-term time series of Sentinel-1 satellite differential InSAR measurements are engaged for this task. Detecting and mapping the high-precision land surface movement dynamics will serve as a very important indicator for potential environmental vulnerability. The technique for time series of land surface small displacements analysis and interpreting are described. Geological and geophysical data are auxiliary for risk forecasting. Finally, the geodynamic risk maps are produced for the study area.
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HYDROGEOLOGICAL CONDITIONS AS A DETERMINING FACTOR IN HYDROCARBON POLLUTION ELIMINATION TECHNOLOGY
Authors I. Udalov, A. Kononenko, V. Petik and V. SocolovSummaryThe article presents the results of the elimination of hydrocarbon pollution in a two-layer non-pressure aquifer. The limited methods for eliminating hydrocarbon pollution in loam sections are established. The dependence of the mobility of hydrocarbons on the position of the groundwater level is proved. It was found that during water reduction, the intensity of horizontal movement of liquid hydrocarbons in the zone of depression of the treatment wells increases. The hydrogeological features described in the article make it possible to significantly accelerate the elimination of accumulations of liquid hydrocarbons from the underground space and increase the level of environmental safety.
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RESEARCH OF VERTICAL CHANGES IN ZAKARPATTYA, KIEV AND CHERKASSY REGIONS USING THE METHOD OF RADAR INTERFEROMETRY
By E. UglitskihSummaryThe article investigates vertical changes of the territory for 2–3 years using the method of radar interferometry. The landfills contain objects of critical infrastructure, research of which is important in view of their importance to the country. Area of interest had 1406 km2 in Zakarpattya region, 839 km2 Kyiv town and 3612 km2 Kyiv and Cherkassy region. Sentinel — 1 (A, B) 2014–2019 satellite images are used for the investigation.
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NUMERICAL MODELLING OF SALT TECTONICS WITH DUCTILE-BRITTLE DEFORMATIONS OF SALT OVERBURDEN
Authors D.B. Vengrovitch and S.M. StovbaSummaryWe present the results of numerical modelling of the dynamics of active salt diapir formation beginning with the initiation of salt movements due to thick-skinned extension of subsalt medium through later stages of creep and brittle deformations of the salt overburden up to the time of the emergence of salt at the surface of its overburden. The numerical modelling algorithm is based on a combination of full dynamic modelling (FDM) of any natural medium with simultaneous ductile and brittle behaviours and the finite element modelling (FEM) of viscous salt flow. The possible mechanism of the formation of highly tilted blocks nearby the walls of salt diapirs is explained by the FDM. The modelling results on the importance of buoyancy forces and erosion as driving mechanisms of the growth of salt diapirs conform to previous models obtained with the use of FEM. The results are also supported by observations in the Dniepr-Donets Basin. The modelling based on the FDM provides an effective additional tool for hydrocarbon exploration and making decisions on development of storage potential for radioactive waste and carbon dioxide.
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CREATION OF A GEO-INFORMATION ANALYTIC COMPLEX FOR ECOLOGICAL MONITORING TASKS
Authors V. Zatserkovnyi, A. Zinchenko, T. Muzhanova, B. Popkov and D. RomanukhaSummaryIn the context of modern urbanization, the problems of monitoring and mapping the ecology of the urban environment are becoming extremely relevant. Increasing of urbanization in large industrialized cities, increase of harmful emissions as a result of growth of the factories and plants, transport, deterioration of water condition, overpopulation are the factors that cause a decrease in the life quality of the urban environment. Monitoring such processesis is an extremely important task. The purpose of this research is to create a specialized geoinformation-analytical complex to support the tasks of environmental monitoring and assessment of the risk to the health of the population under the influence of chemicals substances that pollute the urban environment. Creation of such complex is a key task for further geoinformation system prototypes development to monitor environmental status in Kyiv. The city’s population was 2.95 million in July 2019.
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EXPERIMENTS WITH AVERAGING TRANSFORMATION OF GRAVITY FIELD (ON THE EXAMPLE OF THE SOUTH EAST UKRAINIAN CARPATHIANS)
Authors S.G. Anikeyev, S.E. Rozlovska, B.B. Hablovskyi, M.V. Shtogryn and M.O. KarpenkoSummaryGeological and economic efficiency of regional research of tectonics of oil-and-gas bearing regions of Ukraine, and also researches of geological structures of sedimentary cover, depends on taking into account of all geologic-geophysical information, including quality interpretation of high-precision gravimetric data. As practice shows, morphology of Bouguer gravity anomalies in scale 1:50000 and larger is high-informative for detecting and tracing tectonic zones, faults, and individual structural forms. The transformations of gravity fields allow identifying and tracing local anomalies among other anomalies. Preliminary analysis of frequency and relative depth characteristics of anomalies and also the parameters of the transformations determine the physic-geological content of the localized groups of anomalies. The variants of isotropic and anisotropic combined transformations of averaging, which, in accordance with their frequency and depth characteristics, are intended to detect in the gravity field of isometric or elongated local anomalies of a certain direction and the approximate depth of their sources are presented in the paper. The practical results of the application of these combined transformations are also given.
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MULTIPLE REGRESSIONS AND ANN TECHNIQUES TO PREDICT PERMEABILITY FROM PORE STRUCTURE FOR TERRIGENOUS RESERVOIRS, WEST-SHEBELYNSKA AREA
Authors V. Antoniuk, I. Bezrodna and O. PetrokushynSummaryIn the processes of exploration, allocation of producing intervals, and development of hydrocarbon deposits, the important part is the accurate determination of the poro-perm properties. According to the complex of laboratory studies of the reservoir rocks from the West-Shebelynska area (depth interval 4929–5380 m), the authors predicted the permeability coefficient using the quantitative distribution of different types of voids in (the reservoirs of different types (intergranular, secondary, and fractured). With the help of Multiple Linear Regression (MLR), it was established that the filtration of fluid in the investigated complex reservoir rock samples occurs both in intergranular and secondary voids as well as in fractures. It is shown that Artificial Neural Network (ANN) and Multiple Nonlinear Regression (MNLR) algorithms can provide a stable model with a high degree of confidence that can be used to predict the permeability coefficient at the intervals studied.
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MODERN SEISMICITY OF PODILLYA
Authors M. Baryshnikova and I. TsiupaSummaryUkraine is located near by the Vrancea seismic zone, which adjoins the southwestern borders of the country. This factor is one of the most important in seismic zoning. But earthquakes occur within the country as well.
In this work the modern seismicity of the territory of Podillya - an active platform region is considered.
Based on tectonic earthquake data for the period from 2004 to 2019, two seismically active zones were allocated on the territory of Podillya-Ternopil and Novodnistrovsk region. Both are confined to the zones of modern neotectonic activation. The activation of the Novodnistrovsk zone is associated with the functioning of the Dniester reservoir. Possible influence of weak local earthquakes, the focal areas of which are still poorly understood, should be taken into account while designing and building important and environmentally hazardous objects including hydropower constructions.
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COMPARATIVE ANALYSIS OF ACOUSTIC ANISOTROPY IN ROCKS FROM PISHCHANKA IRON-ORE STRUCTURE
Authors I. Bezrodna, D. Bezrodnyi and V. SvystovSummaryAuthors have shown analysis of results of acoustic properties investigation of Pishchanka iron-ore structure (depth interval 144–273 m). Based on measured velocities of quasi-longitudinal and two quasi-transverse waves anisotropy parameters were calculated. Anisotropy coefficients analysis was performed using different methodologies: compressional, shear and acoustic. Vast majority of samples have high and average level of acoustic anisotropy of an ellipsoid. Based on acoustic tensor parameters most samples have rhombic symmetry type, minority - transverse-isotropic, what describes complex origin of the rocks on different depths. Dissidences in anisotropy parameters of given samples can be explained by essential difference in samples’ structures and discrepancy of size and form of the minerals’ grains.
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