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Monitoring 2019
- Conference date: November 12-15, 2019
- Location: Kyiv, Ukraine
- Published: 12 November 2019
1 - 50 of 110 results
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SYSTEM OF SEISMIC ACOUSTIC MONITORING OF IMPORTANT OBJECTS
Authors A. Lukiyanchuk, P. Savkov, I. Pampukha, I. Syniavska and A. DubinetskiySummaryAn urgent problem during the anti-terrorist operation is protection against uncontrolled crossing of the border, places of forces deployment, objects of higher danger and life support, military objects and key points, lines of demarcation of opposing forces and demilitarized zones in order to prevent penetration of reconnaissance and diversionary groups, exploration of the underground routes and reconnaissance of relocation routes and deployment of enemy troops (units).
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THE RESULTS OF GRAVIMETRIC MONITORING ON THE WORKED-OUT POTASSIUM SALT DEPOSIT IN THE PRECARPATHIAN REGION
Authors S.G. Anikeyev, E.D. Kuzmenko, S.M. Bagriy, B.B. Hablovskyi and U.O. DzobaSummaryThe formation of karst cavities, the disintegration of inter-chamber pillars, deformation of the earth surface and inrush of oversaline water into the underground voids, which is especially dangerous within the settlements and industrial complexes, are the results of mining operations and poor mine conservation (by filling the waste space with the salt brines) in the areas of the Kalush-Holyn potassium salt deposit. The geological and geophysical control of the ecological and geological situation at the mines is performed by using the high-precision gravity exploration. The efficiency of gravity method is investigated in the paper and the results of high-precision gravimetric monitoring of the geological environment state at the division of the Skhidna-Holyn mine field at the Novo-Holyn mine are given. This mine is located on the territory of the Precarpathian fore deep. The modelling of changes in the density structure of the geological profile of the mine, i. e. prediction of the integrity destruction of the saline rocks and the salt table, was performed by solving the gravity inverse according to the space-time anomalies of the gravity field.
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CREATION OF ENVIRONMENTAL MONITORING SYSTEM ON THE BASIS OF GEOINFORMATION PLATFORM
Authors O.P. Fedchenko, I.V. Tolok, I.K. Syniavska, I.V. Pampukha and R.V. PysarenkoSummaryThe ongoing change of atmosphere and environmental parameters of Earth inflicted by anthropogenic load, as well as by industrial and military objects requires reliable evaluation of the ecological situation and its anticipation with a view to provide ecological security. This process entails forecasting of further favorable conditions or negative outcomes development and decision-making based on ecological monitoring through environmental monitoring automatized systems (decision-support systems).
Notably, all above mentioned environmental and anthropogenic components are linked with a unique component such as the dimensional factor (geographical location). As we know, the best tool to process spatial data is Geographic Information System (therefrom — GIS). The modern full-functional GIS platform allows not only to set up the geographic information system of any scale and designation, but also to develop the efficient system of ecological monitoring unified with the decision-support system. At the same time, it should include the following data array: air pollution, hydrosphere pollution, land pollution, technogenic pollution, vegetation cover, as well as public health.
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DEVELOPMENT OF THE COMPUTER DATA BANK CONCEPT OF NEOTECTONIC AND EXOGENOUS PROCESSES TO MONITOR ECO-LOGICAL STATE OF THE ENVIRONMENT (BY THE EXAMPLE OF THE CARPATHIAN FOLD BELT)
Authors A. Fedechko, A. Popliuiko, M. Medvid, O. Ihnatiuk and N. BronitskaSummaryThis report presents some issues of concept development for a computer data bank of neotectonic and exogenous processes to monitor the geological and ecological state of the environment. The concept is developed by the example of the Carpathian fold belt. The study of the action of neotectonic movements and exogenous geological processes is possible using certain research methods. FOr instance, such methods include: orographical method, bathymetric method, morphometric method, river terraces method, a method of planation surface investigation and others. To use these methods and approaches at the modern scientific and methodological level, it is necessary to develop a universal toolkit for collection, storage and processing of certain diverse information. The first step is to develop the concept for computer data bank development for collection, storage and processing of information related to neotectonic movements and exogenous processes. The report presents some ideas and proposals for development and structuring of specific databases. The information on specific work that has already been performed in this direction.
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RISK MANAGEMENT IN SEISMIC HAZARD ZONES ON THE BASIS OF CALCULATIONS OF STRESS USING ACOUSTO-ELASTIC CORRELATIONS
Authors H.H. Guliyev, G.M. Efendiyev, K.K. Aghayeva and I.A. PiriverdiyevSummaryA methodology of assessing the stress state of the considered section of the geological medium is offered in this report which allows carrying out a predicted risk assessment in zones of earthquakes based on the analysis of geological data, measurements of local magnitudes in the array and geomechanical modeling. As a result of the study of complex nonlinear systems in the literature scenarios of the occurrence of natural disasters appeared, which are based on a change in the stress-strain state of the rock mass. It allows establishing the causes of catastrophic events, in particular, earthquakes in some cases. Risk management is based on it. Finally, risk management should ensure the safe and stable operation of the enterprise, the safety of the population in the considered territory. The data of monitoring of local magnitudes and results of calculations of stress in the rock mass are used while calculating and analyzing risks.
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PROGNOSTIC MODEL OF MINERAL RESOURCES DEVELOPMENT IN UKRAINE
Authors L. Horoshkova, V. Volkov and Ie. KhlobystovSummaryThe work develops a systematic approach to the management of mining, using, export and import non-metallic minerals for construction considering the economic parameters of the development of the world market situation, the domestic market and the resource component of state security. It is proved that it is possible to solve the problem of lean use of minerals by more balanced extraction of minerals, namely, establishing a correlation between extraction and use volumes. To predict the development of the industry, it is suggested to use the author’s multifactorial economic and mathematical model for forecasting the development of complex systems. It is proved that such a model will allow controlling the volumes of mining of technologically related minerals in interdependence on the volumes of their use. An analysis of dynamics and geographic structure of export-import operations was also conducted with natural sand, pebbles, gravel and breakstone. The obtained results allowed us to conclude that the approach to formation of export minerals’ flows is not rational, because it poses a threat to the financial state of the mining industry and the country.
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POTENTIAL OF MINING WASTE RECYCLING IN UKRAINE
Authors O. Hrinchenko and O. YushinSummaryMost industrialized advanced countries of the world place high emphasis on utilization of mining wastes. In Ukraine, rate of waste recycling still remains rather low. All the industrial wastes of Ukraine can be classified into four main groups which differ on amount of accumulated materials, hazardous rate and valuable components present. Mining enterprises of Ukraine produce two types of wastes – overburden rocks accumulated in dumps and slimes stored in tailing ponds.
Kryvyi Rih iron ore basin of Ukraine may be taken as a typical example, where 10 to 13 bln tons of overburden rocks are accumulated in dumps. The dumps include about 50 useful minerals and rocks that might be recycled. Unlike dumps placer deposits can be formed in tailing pond. there are several types of technogenic placers that can be worked out in Ukraine: (1) iron ore tailings (500 mln tons) to be recycled on iron and gold (up to 4 g/t); mangane ore tailings (150 mln tons); (3) alumina red slimes (1,2–1,3 mln tons) that include gold, zircon and rutile grains; (4) tailings of titanium ores to be recycled on gold (5–6 g/t); (5) tailings of kaoline that might be recycled on monazite concentrate (lanthanides and thorium).”
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THE MAIN APPROACHES OF LANDSLIDES CLASSIFICATION AND MODELING OF THEIR IMPACT ON INFRASTRUCTURE
Authors O. Ivanik, V. Shevchuk, M. Lavrenyuk and D. KravchenkoSummaryThe basic principles and main approached of landslides classification and modeling of landslide hazards have been proposed. Developed classification of landslides is used to create geological, physical and mathematical models of landslide slopes and subsequent development of tools to assess the stability of slopes. Modeling of landslide hazards include combination of stochastic and deterministic approaches. The application of stochastic methods allows to evaluate the complex factors of landslides and define their priority. Deterministic modeling of landslides makes it possible to perform a quantitative assessment of the impact of some factors on the landslides formation. It is proved that the stress-strain state of the rock mass is the one of the important criteria for the evaluating of the slope stability. Formulation of the task of stress-stain assessment and formalization of the calculations for the landslide slopes with variable parameters of the water saturation has been proposed. A numerical-analytical algorithm for solving the problem in the mathematical formulation, which is based on a modified iterative boundary element method, is developed. This technique is used for the landslide hazard assessment in different areas.
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DEVELOPMENT A PERMEABLE REACTIVE BARRIER FOR IMPROVEMENT OF ECOLOGY STATUS OF ZHOVTY VODY CITY
Authors B. Kornilovych, L. Spasonova, I. Kovalchuk and Y. KoshykSummaryThe development of mining and processing industries in Ukraine has increased the risk of negative impact on environment. One of the most complicated environment situations in Ukraine is the Kryvyi Rig basin, where iron ore and uranium are mined at numerous quarries. A variety of methods have been proposed for remediating water, soil and sediments. A relatively new (in Eastern Europe) in-situ method is a permeable reactive barrier (PRB) that is constructed in the subsurface to intercept and treat contaminated groundwater. One of the most promising substrate materials for PRBs is zero-valent iron which has been extensively studied in recent years. Biological treatment using PRB technology is also very promising. PRB technology employing zerovalent iron which combines subsurface fluid-flow management with contaminant treatment by biogeochemical processes are also very perspective. Batch and column experiments provided with real contaminated ground water from Zhovty Vody site show the potential for zero valent iron based remediation technologies in effective removing of uranium. Also, the provided biological experiments showed possibility for the indigenous cultures of bacteria from Zhovty Vody city to reduce U(VI) under anaerobic conditions. The results obtained proved the acceptable potential of this indigenous consortium for bioremoval of uranium from contaminated groundwater.
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RECONSTRUCTION OF PALEO STRESS FIELDS ON HUAI KHOK GOLD DEPOSIT (LAOS)
Authors D. Kravchenko, A. Drozdova and R. ChaikaSummaryBased on results of the analysis of cleavage, fracturing and shatter zones the parageneses, characteristic by steep dextral and sinistral shear zones with normal faulting components was clearly determined. We marked at least two shear zones that are likely conjugated zones and generated in a higher-order stress field. These shear zones are generated in the conditions of prevailing stresses in the north-east direction with an average plunge of σ1 about 20°. The most probable areas where landslides can develop are mountain slopes with trending coincident with the strike of shear zones and with bisectional sub vertical plane between them.
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TERRAIN ELEVATION CHANGES BY RADAR SATELLITE IMAGES INTERPRETATION AS A COMPONENT OF GEO-ENVIRONMENTAL MONITORING
Authors T. Kril and S. ShekhunovaSummaryThe purpose of this work is to establish the dynamics of the terrain elevation changes in time as a component of geo-environmental monitoring basing on radar satellite images interpretation. Research has been performed for the territory of the right-bank slopes of the Dnipro River in Kyiv. There are proposed a method of the establishing of terrain elevation changes which build on the construction of a base point network for all satellite images, interpretation of the results taking into account seasonality and gradation ∆h in accordance with the elevation discreteness of the images that have been used. Analysis of a images series from December 2007 to January 2009 made it possible to identify stable areas within the research territory and those where the fluctuations of elevations (rising and lowering) have been observed. Terrain elevation changes in unstable areas are explained according to the engineering-geological conditions and technogenic development of the researched area. Distinguished trends based on ∆h of surface revealed a correlation with the location of a extended fault system and other lineaments of this territory. Comparison of long-term observations of terrain elevation changes will allow to identify and classify the lineament forms, in particular those that affect the slopes stability.
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ASSESSMENT OF THE ROCK MASS DEFORMATIONS IN THE INFLUENCE ZONE OF KHOTIN MINE FIELD OF KALUSH SALT MINE (PRECARPATHIAN AREA)
Authors E.D. Kuzmenko, S.M. Bagriy, U.O. Dzoba, V.V. Kostiv and V.Yu. MaksymchukSummaryThe report is devoted to the study of rock masses deformation problem in the salt mining areas. The results of geodetic and geophysical researches, carried out in 2017–2018 on the Khotin field area of the Kalush salt mine, are presented in the paper. Geodetic surveys were performed on five profile lines using the method of high-precision geodetic leveling. Geophysical electrical explorations have been conducted by two methods – TDEM sounding (time-domain electromagnetic sounding) and by the natural electrical field method. The obtained results made it possible to estimate the rock masses state, to determine the inter-chamber pillars deformation degree of the Khotin mine field. The mathematical modelling of the stress state was carried out taking into account the presence of a specific object of high risk – the gas pipeline, which resulted in predictive models of the earth’s surface subsidence in the studied territory.
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MONITORING OF PILE FOUNDATION ENGINEERING IN DENSE URBAN DEVELOPMENT CONDITIONS ON LANDSLIDE HAZARDOUS SITE
Authors N. Marienkov, K. Babik, Y. Bolotov and V. DuninSummaryAn example of the application of modern regulatory requirements for the scientific and technical support of construction and monitoring of building structures for the safe arrangement of the pile foundation on a landslide hazardous building site in conditions of dense urban development in Kyiv during the installation of a Ø820 mm bored pile according to the plan of the pile field has been considered. Continuous monitoring of the pile installation process was conducted for more than 6 hours. Experimentally registered levels of vibration acceleration on the foundation wall of the building in the vertical and horizontal directions do not exceed 0,015 m/s2, which is significantly lower than the minimum permissible values of vibration acceleration for the foundations of buildings with brick bearing walls 0,15 m/s2. The research also evaluated the presence of visible damage to the building in the available places and their possible development before and after piles placement. The condition of the plaster screed on a vertical crack in the wall of the house on the 8th floor, which was installed before the start of construction work, after pile foundation installation has not changed - it remained undamaged.
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MUNICIPAL WASTE AS A FACTOR OF NEGATIVE IMPACT ON THE ENVIRONMENT: FACTS, PROBLEMS, PROPOSITIONS
Authors R. Melnyk and M. KravchenkoSummaryThe objective of the publication is to research the facts, problems and find the ways to improve the functions of public administration in the management of municipal waste in Ukraine. The object of the research is the regulation and practice of exercising this function of public administration in Ukraine and the EU Member States.
For successful conduction of the research, the authors have used general and special methods of scientific cognition such as: formal and logical, comparative and legal, statistical methods, modeling and forecasting methods.
The results of the research have demonstrated the differences in approaches to the management of municipal waste in Ukraine and the EU countries. It has been found out that municipal waste management in EU countries is built around the concept of a closed-loop economy. The main directions for improving municipal waste management in Ukraine have been named. The authors have defined the list of amendments and alterations to the legislation of Ukraine on waste in order to bring this function of the national public administration to the European analogues.
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MONITORING RESEARCH OF GEOLOGICAL ENVIRONMENT IN TARAS SHEVCHENKO NATIONAL UNIVERSITY OF KYIV
Authors V. Mykhailov, I. Bezrodna and O. IvanikSummaryThe consideration is given the different branches of geological research related to the monitoring of geological environment at the Institute of Geology, Taras Shevchenko National University of Kyiv. Institute of Geology has a long-term history and the strong well-known school of geological research. Activities of Institute of Geology are mainly focused on training in geological survey, monitoring of the geological environment, prospecting and exploration of oil and gas, mineral resources, groundwater, mining, geotechnical studies, geophysics, mineralogy, and gemology. Nowadays, the Institute provides the research by the following areas: geophysical studies; physical-chemical studies of rocks; modeling of geological processes and structures; the use of GIS-technologies in environmental studies, structural and tectonic studies, mineralogical and geochemical studies, paleontology and stratigraphy of Phanerozoic deposits. The prospects of the of geological science development at the university are the good cooperation with Ukrainian and foreign researchers, participation in the joint research projects on monitoring the geological environment, publication in the world’s ranking journals. The overarching aim of geological research is to provide high quality training to a group of young researchers, contributing to the development of a new generation of multidisciplinary researchers able to work in the challenging field of advanced investigations of geological environment.
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QITIANLINGITE - A NEW MINERAL FROM THE GRANITE PEGMATITES OF THE VOLODARSK-VOLYN DEPOSIT
Authors Eu. Naumenko, A. Andreev and S. ShnyukovSummaryColumbite samples from the quarry No.2 of the Volodarsk-Volyn piezoelectric quartz deposit were investigated. Chemical data revealed a tungsten admixture, chemical heterogeneity of the peripheral zone of one of the columbite crystals, and allowed the separation of a new mineral for Ukraine - qitianlingite, which is a complex oxide of manganese, iron, tantalum, niobium, and tungsten, which forms the inclusion in the peripheral zone of the columbite crystal. In addition, an unknown silicate-tantalum phase with impurities of uranium, which was formed during the last stages of columbite growth or after its growth, and developed in the interstitium between columbite and qitianlingite, was detected.
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ECOLOGICAL AND MONITORING STUDIES OF OIL PRODUCTION TERRITORIES AND POSSIBILITY OF THEIR USE IN RECREATION
Authors N. Pobihun, Y. Korobeinykova, O. Pobihun and I. IurasSummaryThe results of the primary ecological monitoring on distribution of separate heavy metals on territories of oil and gas production were studied. The objects of study were landscapes zones affected by NHVU “Dolynanaftogaz”, which is located in Dolyna district within the Carpathians. Samples were selected from 4 profiles that were made across the basic reaching of mountain ranges (from south-west to north-east) on the territory of the district for the determination of regularities of heavy metals distribution in soils and for an assessment of their ecological condition. On the second stage of work the studies of influence of small concentrations of heavy metals on cytogenetic features of soil according to the indicators of mitotical activity in primary root meristem of test object of Allium of cepa and induced aberrations of chromosomes in cells were conducted. Combination of these methods gives an opportunity to forecast influences of technogenic activity on human health and is the effective complex of ecological monitoring studies of soils in the technogenically changed territories.
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STRUCTURE OF AN AUTOMATED GEOINFORMATION MONITORING SYSTEM FOR THE DECISION-MAKING SUPPORT IN EMERGENCY SITUATIONS
Authors B. Popkov, M. Okhramovych, M. Nikiforov, V. Loza and V. SavranSummaryIn order to increase the functional capabilities of the Automated Geoinformation Monitoring System for the decision-making support in emergency situations, it is relevant to develop an Automated Geographic Information System (GIS) for decision-making support, as well as software products designed to solve different tasks related to the calculation and assessment of hazards in emergency situations. The modular principle of organization and construction of information systems shall be applied to build the monitoring subsystem. Thus, application of GIS technologies as an integrating platform creates a single information space containing all necessary data for the effective operational command and control of units and rescue detachments.
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MODELLING OF THE LATE PLEISTOCENE CLIMATIC CHANGES IN THE BUKOVYNA AREA BASED ON QUANTITATIVE RECONSTRUCTION METHODOLOGIES AND PALYNOLOGICAL DATA FROM GEOARCHAEOLOGICAL SITES
Authors Ye. Rohozin, T. Yurchenko and N. GerasimenkoSummaryThe paper presents quantitative palaeoclimate reconstructions for the short-term phases within the main Late Pleistocene stages, based on the combined application to pollen data of two methods: informational-statistical (Klimanov et al., 1995) and ‘the best modern analogues’ (Guiot et al., 1989). The study area is Bukovyna where four geoarchaeological sites were palynologically studied and interpreted in palaeoclimatic sense. The standard errors for the calculated values are 1.3°C for mean annual temperatures, 1.6°C for mean July temperatures and 100 mm for annual precipitation rates. The results demonstrate cyclicity in climatic parameters changes through the Late Pleistocene and the large amplitudes of these changes. High-resolution sampling of late pleniglacial deposits has shown millennial- and even centennial-scale oscillations, which indicate the possibility of very drastic climatic events. Crucial changes resulted in environmental hazards, which affected the settlement patterns of Upper Paleolithic population. The amplitudes between cool and warm phases within the last interglacial (the analogue of the Holocene, the current interglacial) also were large and, thus, could cause climatic hazards. The reliable knowledge on the regular pattern of past climatic changes is crucially important for understanding of their nature and, thus, possible forecasting of climatological hazards.
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MONITORING AND MODELING OF DANGEROUS GEOLOGICAL PROCESSES IN UKRAINE
By G.I. RudkoSummaryScientific-methodological and methodical approaches to the assessment of the state of landslide geosystems in the territory of Ukraine have been characterized in the article, monitoring of landslide hazardous territories of Ukraine has been substantiated, general characteristic of main spatial and temporal patterns of landslide development has been conducted.
Possibilities of analysis of digital relief data by means of GIS and satellite imagery have been elucidated in the paper in order to identify and analyse conditions and factors of the formation of landslide processes.
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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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EVALUATION OF CS-137 CONCENTRATION IN ONE OF THE LOCATION OF FINAL DEPOSITION ACCORDING TO GEOPHYSICAL EXPLORATION
By M. DanylovaSummaryResults of the radioactive contamination measurements by Cesium-137 of a repository are evaluated. Contamination are carry out with hole radiometry near the repository. Vertical curves of exposure dose rate have a mutual feature — an absence of high values at low depths that corresponds to bulk layer of soils and sharp increasing of exposure dose rate in 60–80 cm that reflects an upper level of repository. Complex software MicroShield was used during data processing of gamma-ray log and specific activity of Cesium-137 determination in radioactive waste gatherings. Software functions with a wide range of geometry options give an opportunity to represent the exact conditions in the well. This allows us to increase the resolution of calculations, minimizing the possibility of possible uncertainties and determine radioactive characteristics inside the buried radioactive waste. Furthermore, determination of buried radioactive materials characteristic afford making rational administrative and projective decisions on how to safely eliminate and behave with radioactive waste.
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MAGNETOMINERALOGICAL SUBSTANTIATION OF MAGNETIZATION OF THE ROCKS OF THE LOWER CRUST AND UPPER MANTLE
Authors V. Drukarenko, M. Orlyuk and O. ShestopalovaSummaryRecent researches have been shown that sources of longwavelength geomagnetic anomalies are located at upper mantle depths to which earthquake sources may be associated. Therefore, there is a requirement of magnetomineralogical and physical justification for the possibility of the existence of magnetized rocks at these depths. The main minerals retaining magnetic properties in the lower crust and upper mantle are magnetite, haematite, native α -Fe iron and its alloys. The emergence and transformation of iron minerals and reducing of α -Fe can occur due to the reactions of reducing fluids with different iron compounds and rocks in particular at junction zones of lithospheric plates of different types, rifts, plumes, tectonic-thermal activation, etc. The mantle xenoliths are the main sources of information of mantle magnetization and characterized by pure magnetite inclusions in olivine and pyroxenes. Magnetite is formed due to serpentinization processes in the mantle peridotites. Iron oxides and native iron are potential sources of magnetic anomalies in the mantle. Studies have shown that haematite remains magnetic at depths of transition zone in the mantle in cold or very cold subduction geotherms. α -Fe can be found in the lower crust and upper mantle due to the low oxygen fugacity and the reducing nature of the geochemical environment.
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RADIOECOLOGICAL MONITORING OF LOCAL SOURCES OF EXISTING AND POTENTIAL RADIOACTIVE CONTAMINATION USING GEOINFORMATIONAL SYSTIM
Authors O. Fedchenko, I. Syniavska, N. Levinskova, P. Savkov and V. SavkovaSummaryRadioecological monitoring is a complex information and technical system for observation, research, evaluation and forecasting of the radiation status of the biosphere, areas near NPPs (Nuclear Power Plants) affected by radiation accidents, and potentially hazardous areas (PNT) such as radioactive waste storage facilities, radioactive waste storage facilities (threat of nuclear weapons), nuclear power plants (NPPs), nuclear fuel manufacturing and processing enterprises, nuclear reactors, nuclear power plants at transport facilities. The territory of Ukraine needs a perfect system of radio-ecological monitoring several times more than any European country. Unstable military-political situation, numerous explosions of ammunition arsenals lack of RW repositories that meet international standards. By volume of radioactive waste, Ukraine is ranked II in Europe and IV in the world (3.5 million m3). This is the main reason for the need to constantly control and monitor the state of sources of existing and potential pollution of the territories.
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PETROPHYSICAL MODEL FOR POROSITY DETERMINATION OF COLLECTORS WITH DIFFERENT CONTENT OF CLAY MATERIALS ACCORDING TO THE ACOUSTICAL AND RADIOACTIVE RESEARCHES
Authors D.D. Fedoryshyn, V.V. Fedoriv and R.O. MarynchakSummaryAccording to the results of studies of the geological structure of productive rocks-collectors of perspective horizons of gas deposits of the Precarpathian Strait and the Dnieper-Donetsk basin, it is established that gas-saturated layers are represented by monomictic sandstones and siltstone with different types of cement. The analysis of information from the literature and methodological recommendations for the determination of porosity showed that the clay greatly affects the results of geophysical studies of wells, in particular acoustic and neutron logs. In this work the possibility of taking clay into account when determining the porosity coefficient using the results of gamma logging studies is considered. As a result of the simulation, a new unified petrophysical model for determining the porosity of reservoir rocks with different content of clay material was obtained, according to the well studies of acoustic and gamma logs.
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THE PERSPECTIVES FOR OIL AND GAS CONTENT OF INDIVIDUAL LITHOLOGIC-STRATIGRAPHIC STRATA OF THE RUDAVETS OIL FIELD
Authors D.D. Fedoryshyn, O.M. Trubenko, S.D. Fedoryshyn and R.O. MarynchakSummaryThe results of the complex geophysical researches of wells of separate deposits of the Boryslav-Pokut zone of the Pre-Carpathian strait were reinterpreted, reassessment of oil and gas perspectives of individual paleogene system subdivisions, also missed layers were detected. Such a promising area within the second layer of the structures of the Boryslav-Pokut zone of the Pre-Carpathian strait is the Rudavets oil field.
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CORRELATION AND CLUSTER ANALYSIS OF PRINCIPAL GEOLOGICAL PARAMETERS OF GIANT HYDROCARBON FIELDS
Authors G.N. Gahramanov, N.R. Narimanov, M.S. Babayev, S. Shpyrko and M.T. BabayevaSummaryWe consider the problem of extraction of relevant geological parameters, related to the formation conditions of major hydrocarbon (HC) fields and estimation of their resource potential. The identification of most informative sets of geological parameters and revealing correlation dependencies between them is of crucial importance for HC exploration. Experience has proven, that 10–15 geological parameters have high information impact and can be used to estimate HC potential in most sedimentary basins. These parameters characterize sedimentation conditions, tectonic environment, organic matter transformation, location of the oil and gas accumulation areas etc. Depending on the geological conditions, relations of various nature can exist between these parameters, which can be characterized by pairwise correlation coefficients. We present the pilot study of the pairwise correlation coefficients between the metric subset of these parameters, calculated from data set of major world basins, including Azerbaijan giant fields. Several alternative graphic models are proposed (including trend curves, correlograms, chord diagrams and clustered dendrograms) to visualize the dependencies and to derive conclusions as to the impact of these parameters on the probability assessment of the HC field formation.
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LOCATION OF GAS-SATURATED OBJECTS OF UNCONVENTIONAL TYPES IN THE WELL SECTIONS BY THE WELL-LOGGING DATA
Authors O. Karpenko, V. Mykhailov and I. BaysarovychSummaryOn the basis of authors own experience, it was made an attempt to analyze the possibilities and modern approaches of identifying unconventional reservoirs and to give practical recommendations for assessing their prospects. The issues of practical implementation of interpretative models for determination of TOC content, clay content and porosity in the well sections with the purpose of estimation of shale gas resources are considered. The main criteria and limitations for the allocation of perspective objects in well sections are presented in order to realistically account for shale gas resources and gas of tight reservoir rocks. It is shown that the use of the most commonly used method of Q. Passey is quite effective in calculating the TOC content in terrigenous sections of the Serpukhovian of oil and gas fields of DDD. Typical values of gas saturation coefficients and range of possible porosity values inherent in tight reservoir rocks of the Serpukhovian of the of the South side of the DDC are presented and recommended by the authors.
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PREDICTION OF PERMEABILITY USING PORE NETWORK MODELS CONSTRUCTED FROM THIN SECTION IMAGE OF RESERVOIR ROCK SAMPLE
Authors I. Kurovets, A. Shyra, Y. Shpot, S. Kurovets and V. KurovetsSummaryNetwork models of porous media are a useful tool for predicting transport properties of hydrocarbon reservoir rocks. This work explores the possibility of using a reconstructed three-dimensional pore space model, obtained by means of multi-point statistical modeling based on thin images of reservoir rocks, to construct a bi-regular network model based on truncated octahedral nodes. With this model, it is possible to simulate pore systems with a wider range of pore connectivity, making the proposed model more realistic and flexible than existing cubic-based models. It is shown that using these models it is possible to accurately predict the experimentally measured permeability of the sample.
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THE CHEMICAL COMPOSITION OF THE THORIUM ORTOSILICATES FROM ALBITITES OF THE NOVOOLEKSIIVKA THORIUM-URANIUM OCCURRENCE (UKRAINIAN SHIELD)
Authors I. Mihalchenko, O. Andreev and S. ShnyukovSummaryThe chemical compositions of pneumolithic-hydrothermal Thorium orthosilicates from the albitites of Novooleksiivka occurrence are characterized by admixture of Uranium, Rare Earths elements, Yttrium, and some Phosphorus. Thorites and Uranothorites have been identified in albitites. Ferritorites are epigenetic minerals. The chemical compositions of Thorium orthosilicates from the albitites are characterized by admixture of Uranium, Rare Earths elements, Yttrium, and some Phosphorus, which gives the basis for these minerals due to the decomposition of magmatic Monazites of the original rocks. The spectra of Rare Earth elements of Thorium orthosilicates are not constant, which is a sign of the fractionation of these elements in the processes of pneumolithic-hydrothermal alteration of the original rocks. The signs of the Uranium and Thorium leaching, migration and deposition testify of the existence of conditions of transportation of Uranium in the U4+ uranium oxidation state in the fluid, that generated rocks.
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THE METHOD TO RESEARCH EQUIVALENT SOLUTIONS ZONES FOR INVERSE PROBLEM OF WELL LOGGING ELECTROMETRY
By M. MyrontsovSummaryThe purpose of the research was to create a way to determine the areas of equivalent solutions for inverse problems of well logging electrometry. Method of parameters model relation with values for each sonde was proposed to use for equivalence zone creation. After results of proposed method use for models of typical reservoirs in Dnipro-Donetsk depression, it was concluded about high efficiency of the proposed method.
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