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Geoinformatics: Theoretical and Applied Aspects 2020
- Conference date: May 11-14, 2020
- Location: Kyiv, Ukraine
- Published: 11 May 2020
1 - 50 of 151 results
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Technology of Frequency Resonance Processing of Satellite Images: Results of Testing on gold deposits and areas of gold ore occurrences
Authors M. Yakymchuk, I. N. Korchagin and G. DrogitskayaSummaryThe results of testing mobile and direct prospecting technology of frequency-resonance processing of satellite images and photo images at large gold deposits Boddington (Australia) and Muruntau (Uzbekistan), as well as at areas of gold ore occurrences in Australia and Ukraine, are presented. At a large Boddington deposit, responses from gold were recorded up to 2600 m, and at the largest Muruntau, up to 2000 m. Within the Ilkurlka ring structure (Australia), gold ore mineralization intervals were recorded from the surface up to 2000 m. Within a prospecting site in Ukraine, responses from gold were obtained from intervals of 49–99 m and 590–650 m. All examined objects are located in the contours of deep channels (volcanoes) with roots at 470 and 996 km, filled with granites. In the contours of the Yarrabubba crater, responses at gold frequencies have not been recorded. Responses from gold were recorded only in granite volcanoes with roots at a depth of 470 km. The research materials, presented in the report, as well as those conducted earlier, will allow us to formulate statistically substantiated recommendations of a methodological nature for the search for fuels and ore minerals.
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The use of geoinformation technologies for visualization the features of the underwater terrain of the Antarctic Territories and the geological processes which contributed to its formation
Authors M. D. Krochak, M. V. Bandurenko, V. I. Holoborodko and Y. I. VoropaiSummaryThe aim of the presented work is creating a 3D image of the seafloor of the northwest coast of the Antarctic Peninsula in the area of Argentine Islands at the location of the Ukrainian Antarctic station “Academician Vernadsky”. The bathymetric maps of the seafloor of this water area became the actual material. Depths of 730 points in the area of 5,6 km 2 were taken to create the database. ArcGIS methods of spatial analysis were used to create the 3D model: Arc Map 10.1.4, Arc Scene 10.1.4, and Surfer 10. The simulation results are compared by different methods. It was concluded that there is an undeniable advantage of the model built by Arc GIS methods, which give an idea of the smallest elements of underwater terrain. The main geological processes that have formed the modern morphology of the seafloor are the tectonics of fault character and the exogenous erosion glacial plowing processes, processes of the suspension flows that created the submarine valleys between the islands and canyons on the continental slope.
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“Paleogeomorphological atlas” as a way to accumulate generalized and obtain new information «historical-dynamic morphosystem of the Earth»
SummaryNow the geomorphology object of the relief of the Earth is specified as a historical-dynamic morphosystem of the Earth.
The historical-dynamic morphosystem of the Earth continuously forms its own space-time - the geomorpholithosphere.
The historical-dynamic morphosystem of the Earth and geomorpholithosphere are studied mainly by paleogeomorphology.
An important task of paleogeomorphology is the development of paleogeomorphological mapping, which involves the creation of paleogeomorphological maps and their atlases.
When compiling paleogeomorphological atlases, theories and methods are directly and indirectly used: non-equilibrium thermodynamics theory, general systems theory, morphochronodynamic concept, morphochronodynamic analysis, regional geomorphological analysis, complex paleogeomorphological analysis, cartographic method, mathematical and statistical method.
There are sufficient conditions to create “paleogeomorphological atlases” of the terrains of the former USSR.
“Paleogeomorphological atlases” consist of the following sections: 1) explanatory text; 2) traditional paleogeomorphological maps; 3) a new type of maps built on a morphochronodynamic basis; 4) special maps for individual objects - traditional and “new”; 5) special maps that have theoretical and practical orientation.
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Retrospective monitoring of changes in land areas under the quarries of the «Mokryanskogo deposit II» based on the analysis of different space images
Authors A. V. Skorobahatko, I. M. Baysarovych, M. S. Kovalchuk and V. V. BabiySUMMARYRetrospective monitoring of the change of lot land areas under the quarries of «Mokryanskogo deposit II» was carried out. It was set that as a result of mining by an open method, the area of lot lands under careers during 2004–2018 changed insignificantly. After completion of work in one of quarries of the deposit and subsequent recultivation, the amount of quarries diminished from 4 to 3.
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Seven-year cyclicity manifestations in groundwater mode revealed by wavelet analysi
Authors O. Shevchenko, A. Skorbun and D. CharnyiSUMMARYStatistical methods, mainly wavelet analysis, showed the presence of 7–8 -year cycles of levels and runoff of groundwater in the Pivdennyi Bug river basin. These rhythms have been manifesting since 1989, which is the year of the beginning of significant climate change in Ukraine. These rhythms largely correspond to the rhythms of precipitation (8.7 years), river runoff and especially rhythms of temperature (8 years). It is also important that the cyclicity of 7–8 years in the GWL mode is practically not affected by local factors (degree of regulation, lithology, depth of the GWL, distance from the river, etc.), which significantly influence the rhythms of other periodicity. Instead, more regular cycles of 10–11 years, corresponding to the rhythms of solar activity, are almost non-existent after 1986. However, after 2003–2006, the daily GWL rhythm of 7–8 years (7.9 ± 0.6) also becomes irregular, which may be due to a new rotating meteorological phenomenon, which can lead to irreversible changes in the groundwater balance.
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Lidar photography – as a source for filling the 3D cadastre and the BIM database
More LessSUMMARYThe use of intelligent work of execution tools and their integration with augmented reality systems minimizes the difference between virtual and actual models, identifying unplanned situations in a timely manner and offering ways to respond.
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Problems of registration of geological sites (monuments) in the State Land Cadastre
Authors L. V. Samoilenko and V. I. ZatserkovnyiSUMMARYThe main object of research in this publication is increase the informative nature of the electronic resources of the SLC on the NRF objects, the unification of the data set on the geological monuments of nature and nature reserves as NRF objects, the establishment of the exact area and boundaries of the territories of the geological monuments and nature reserves, their protection zones to avoid forbidden activities in the areas of geological monuments of nature and nature reserves in order to protect and preserve them
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The Experience of Modeling Magmatogenic Ore Systems on the Example of Zhumba Quartz-Vein Deposit, East Kazakhstan
Authors V. I. Zatserkovnyi, M. A. Mizernaya, G. B. Orazbekova and A. P. MiroshnikovaSUMMARYThe definite ore metasomatic system was reconstructed in trans-intrusive zone of hidden granitoid solid mass on the example of studying Zhumba ore zone by the methods of system analysis.
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Determining of the effects of groundwater regime on the status of architectural monuments of Kyiv-Pechersk Lavra
Authors V. M. Hudak, I. A. Cherevko, V. I. Zatserkovnyi, V. I. Ostroukh and A. V. IlchenkoSummaryThe main purpose of research is interpret the data of long-term observations of surface-water and ground-water regimes with determination of the factors of influence that lead to disturbance of hydrogeological conditions of the territory of the Kyiv-Pechersk Lavra.
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Analysis of the accuracy of the orthophoto map building according to aerial photography results executed with UAV
Authors V. I. Zatserkovnyi, S. D. Kryachok, L. S. Mamontova, B. Popkov and I. ChepkovSummaryAssess the accuracy of the orthophotomap, aerial survey was performed to create a plan on a scale of 1: 2000 of the territory of the Kachanivka National Historical and Cultural Reserve, located in the Ichnyansky district of the Chernihiv region.
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Using of Landsat space images to study the dynamic of coastline changes in the Black Sea north-western part in 1983–2013
Authors E. A. Cherkez, V. I. Medinets, T. V. Pavlik, Ye. I. Gazyetov, S. V. Medinets and T. V. KozlovaSUMMARYPurpose of the work has been to study different coastal areas’ growth/ reduction resulting from coastlines dynamics changes under abrasion and accumulation processes in the North-Western Black Sea (NWBS) influenced by natural and anthropogenic factors in 1983–2013. Methodology. LANDSAT space images of 1983–2013 and historical experimental data have been utilized as the initial and geological data for thisinvestigation. Processing has been done out using ArcGIS 9.2. Results. The results of study have shown that main areas with maximal changes of coastline location are river deltas (Danube, Dniester, Dnipro), as well as bay-bars of practically all the Black Sea limans (estuaries). Estimations of changes of coastal land areas’ increase (+)/ decrease (−) have been presented and discussed. Conclusions. Maximal changes of coastline position in the North-Western part of the Black Sea were registered in the Danube Delta, areas of the Sasyk and Dniester Limans and Odesa Bay. Land area in those locations grew by more than 16 km2. In other NWBS coastal areas decrease of land terrain was observed, i.e. destruction of coasts, which made about 5 km2. At that, it should be noted that the biggest changes were taking place in the past decade.
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The theory of information providing for researches and works on geological environment management
SUMMARYThe concept of the theory of information provision for research and works (R&D) on the geological environment management (ISRDGEM) is presented. The main provisions of the ISRDGEM theory are stated – the formulation of the concept of infogeology as an independent direction of geoinformatics, presentation of the general theoretical scheme of ISRDGEM designation of the main directions of ISRDGEM and the concept of frame organization of the geological environment (GE), as a methodological apparatus for structuring and subsequent modeling operations, examples of the implementation of theoretical developments at specific geological objects are demonstrated. The features of information modeling in the main areas of GE management are considered. Examples of information models implementing for placers, oil and gas deposits development and other fields are given. The main directions of further research are outlined.
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Use of spatial morphometric analysis of the Zmiinyi island underwater slope relief to reveal tectonic movements in Holocene
SummaryPurpose of the work has been to reveal the features of morphometric characteristics of modern relief of the Zmiinyi Island underwater slope in order to identify the stages of geological development and assess intensity of vertical tectonic movements in Holocene. Methodology. Nautical charts and results of bathymetric surveys down to 30–35 m depth performed in 2009–2015 using echo sounder have been used as the source data for the digital model of underwater slope’s relief. Using the digital model of sea, bottom depths hypsometric curve has been built to establish the generalized values of abrasion benches location depths (used as indicators of ancient coastlines), map of the island underwater slope inclinations and amplitudes of abrasion benches displacement have been determined to estimate the size, sign and speed of vertical tectonic movements. Results. From absolute values of modern depths and ages of abrasion benches, relative deformations of primary horizontal levels of abrasion benches caused by tectonic displacements have been calculated. It has been shown that average speed of relative tectonic movements with negative sign in the north-eastern area of the island in Holocene used to make 0.75 mm/year. Conclusions. Morphometric analysis of the detailed bathymetric studies has revealed correspondence of hypsometric levels of coastal benches between the north-western Black Sea shelf and the Zmiinyi Island underwater slope, which evidences the connection of certain stages of geological development of the Black Sea and the island in the time of Holocene transgression. Assessment of relative deformations of primary horizontal levels of abrasion benches caused by differentiated tectonic displacements of separate blocks has been presented.
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Use of geoinformation technology to study the structure and morphometric parameters of river basins
Authors M. M. Prykhodko, V. V. Romaniuk, D. V. Kukhtar, I. L. Bodnaruk and M. V. AdamovychSUMMARYThe need to preserve and restore the natural environment, to ensure the environmental safety of geographical entities are priority conditions for the implementation of a dominant social paradigm –balanced development (in harmony with nature). At the same time, river basin is the unit of management, planning and design of environmentally safe geographical entities. The use of geoinformation technology plays an important role in the study of the structure and morphometric parameters of river basins. Based on the data analysis by ASTER GDEM, as well as a digital topographic base of 1:100 000 scale in the environment of ArcGis software product and Spatial Analyst module, a 3-dimensional model of the earth’s surface was designed to study the structure and morphometric parameters the Opir river basin. The boundaries of the basin have been determined, streams of different orders have been identified. An angle and exposure of slopes were determined. The analysis of the structure of the basin and morphometric parameters was performed by comparing their mean values and percentages.
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Geoelectrical heterogeneities of the crust and upper mantle of the territory of Ukraine
Authors A. Kushnir, T. Burakhovych, V. Ilyenko and B. ShyrkovSummaryAccording to the research, the geoelectric heterogeneities in the earth’s crust and upper mantle of Ukraine were revealed, they are characterized by the anomalously low and anomalously high electrical resistivity values. The conductivity zones that reach the surface are characterized by the subvertical heterogeneity and assemble the galvanically linked system. It spatially coincides with the deep faults of the different rank that are distinguished according to the geological data. The earth’s crust independently of the geological and tectonic region is characterized by anomalous conductivity layers, the upper edge of which is observed at the different depths from 2 to 20 km with an apparent resistivity up to 100 Ohm∙m. The geoelectrical heterogeneity of the upper mantle was revealed in the Pre-Dobrudja and Crimean-Black Sea regions, and only fragmentarily under the Ukrainian shield, the Pripyat depression, and the Dnipro-Donets basin. The paper is with the explaining of the high-electrical conductivity anomaly nature based on the results of the geological and geoelectrical data complex analysis and their study as one of the factors of the geodynamic processes for the ore mineralization and hydrocarbon search.
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Structure of the “Relict continental dunes” GIS geodatabase as the basis of unification, systematization and analysis of information
Authors L. Dubis, N. Habchak, S. Bortnyk, V. Zatserkovnyi and Yu. AndreychukSummaryThe purpose of this study is to create a unified geodatabase of containing information on relict (continental) dunes. Continental dunes are widespread in Eurasia and North America. In the studies by many authors, a considerable amount of information regarding the distribution of continental dunes, their morphology and lithology of sediments has been obtained. This information requires unification and systematization. The study proposes the structure of the “Relict continental dunes” multilevel geodatabase. The principle of territorial display of aeolian forms has become a priority in concept of geodatabase development. The geodatabase consists of five major relational multilevel blocks. The advantage of proposed geodatabase is the coverage of a large amount of information about the objects under study and ability to quick analysis it with the spatial display of the research object. The main tool for building the geodatabase is ArcGIS Desktop 9.0. The geodatabase structure uses a variety of RS and cartographic data processed by GIS, field surveys and laboratory analysis methods. Overall, geodatabase contains systematic, geocoded and layered raster, vector and text, data types in SHP, MDB, GRID/IMG, and TIN formats.
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Interactive map of the nature reserve fund of Ukraine in the Poltava region as an innovative measure of environmental monitoring
Authors E. Bondarenko and M. KyryliukSUMMARYThe article is dedicated to issues of thematic interactive map creation of the nature reserve fund of Ukraine in Poltava region. It is defined as a modern mapping service. That is the result of work and an innovative and effective application tool, in particular for environmental monitoring of the region.
On the basis of modern scientific methods types of objects of the nature reserve fund on the map are applied. The possibility of obtaining additional meta-information about them through pop-up dialogues and hyperlinks are substantiated.
It is proved this holistic cartographic work and at the same time dynamic information-cartographic system must match the modern practice requirements. Different groups of users in the framework of environmental monitoring must be informed to perform a number of important strategic and tactical tasks.
The algorithm of regional geoinformation mapping of the nature reserve fund of Ukraine has developed. This is generally characterized by consistent implementation of tasks at three levels: theoretical, informational, logical, and practical.
The list of information mapping layers of the interactive map, which make up its contents and are obtained. This is based on using various types of data from the created object-oriented database
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Methods for mapping and assessment drivers of change effects on terrestrial and marine ecosystem services in Lithuania
Authors E. Gomes, M. Inácio, K. Mikša, M. Kalinauskas and P. PereiraSUMMARYDifferent mechanisms drive marine and terrestrial ecosystems changes. The present study aimed at presenting a conceptual methodology to map marine and terrestrial changes, to recognize their drivers of change, and to measure the impacts of land management in Lithuania. To model changes in the terrestrial part a Cellular automata-Markov chain approach is proposed for the following four scenarios: business as usual; urbanization; land abandonment; and agricultural intensification. To measure its impacts the InVEST habitat model is endorsed. For the marine part, changes will be addressed in land and in the sea applying driver specific approaches. The outcomes can provide decision-makers anticipate futures uncertainties.
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Seismic tomographic model along the geotraverse VI profile
Authors D. V. Lysynchuk, L. V. Farfuliak, K. V. Kolomiets and O. V. KolomietsSummaryThe reinterpretation of the “old” seismic data along the line of the 900 km long geotraverse profile is represented by a seismic tomographic model. The bitmap images of the original seismic data were converted into vector diagrams by the DIGITIZER computer program. This made it possible to represent the hodographs as numerical data sets and to construct the seismic tomographic model along the geotraverse line. The velocity model is obtained by the tomographic inversion method of first arrivals of seismic waves. The deep tectonic structures are clearly outlined on the tomographic model. In particular, the Ukrainian Shield is characterized by Volyn, Podolsk, and Bug Megablocks with uplifts of variable sizes in the upper and middle crust. The Golovanivska suture zone is distinguished as uplift from the northwest to the southeast and the Kryvorizka suture zone is highlighted in the opposite direction.
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Using the TAR3D program for 3D data visualization in geoelectric studies
Authors V. N. Tarasov and I. M. LogvinovSummaryIn recent years, actively developing programs for three-dimensional data visualization. There are no such areas of life where 3D images are not needed. As a rule, available programs do not always provide the opportunity to get the image in the desired form. Therefore, to build three-dimensional models, in addition to widespread and well-known GIS products, the authors of the report offer their alternative solution. In the Matlab environment, which is a high-level language was written TAR3D program for three-dimensional data visualization. The program was tested on geoelectric data obtained within Ukraine and abroad. The operational experience of the program shows that it is suitable not only for deep geological and geophysical data. The process of building complex 3D models is simple. The block design of diverse objects mentioned in the text is used. The final model is saved in vector form with the ability to continue interactive graphic editing. The rotation of the model in any direction, the use of a coordinate marker on the body of objects gives an undeniable advantage for researchers who are engaged in the analysis of three-dimensional objects.
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The crustal structure of the transition from the East Black Sea Basin to the Shatsky Ridge from reinterpretation of existing refraction seismic profiles 14-15-16
Authors T. Yegorova, E. Baranova, A. Murovskaya, L. Farfuliak and K. RepinaSummaryWe represent the results of recent ray-tracing modeling for three deep seismic sounding profiles 14, 15 and 16 acquired in the Eastern Black Sea in 1960-th. They were conducted on a system of radial profiles diverging from one common shot point in the East Black Sea Basin and crossing the Shatsky Ridge. The performed modeling showed that thin (∼ 10 km) crystalline EBSB crust, with velocities increasing from 6.5 km/s in the basement to 7.0 km/s on the Moho (20–22 km), is overlain by ∼10 km-thick sediments. The continental crust of the Shatsky Ridge of ∼ 30 km thickness comprises two layers – the upper crust (6.0–6.5 km/s) of 15-km thickness and the 10-km thick lower crust (6.5–7.0 km/s). The transition from the EBSB suboceanic crust to the Shatsky Ridge continental crust occurs dramatically, on ∼25-km interval. This transition zone runs parallel to the coastline, and is associated with Alushta-Batumi magnetic anomaly of the same (NW) strike. These could be indicative of the tectonic origin of the transition zone during the main stages of evolution of the region - at the Mesozoic closure of Tethys Ocean, during the opening of the East Black Sea Basin in Cretaceous, and during the Alpine collision tectonics.
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On the prospects of hydrocarbon and hydrogen accumulations detecting within local areas of Ukrainian shield
Authors M. Yakymchuk and I. N. KorchaginSummaryThe results of applying the technology of frequency-resonance processing and interpretation of satellite images on the Ukrainian shield with the aim of studying the deep structure of this structure and searching for hydrocarbon accumulations are presented. By conducted studies on the shield the presence of two layers of granites of different ages was revealed, and the deep channels of fluids, minerals and chemical elements vertical migration, filled with granite rocks of different ages, were found. The roots of the discovered channels were recorded at depths of 470 km and 996 km. In the cross-section intervals between the upper and lower granite strata, responses from sedimentary rocks, as well as oil, condensate and gas were recorded. This cross-section interval between two strata of granites deserves a detailed study in order to hydrocarbon accumulations detect and localize.
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The most expensive “dry” exploratory well in the history of the oil industry: reasons of failure based on data of direct-prospecting methods application
Authors M. Yakymchuk and I. N. KorchaginSummaryThe materials of additional testing of mobile direct-prospecting methods on the Alaska, Peru offshore are presented. Experimental studies have been carried out in order to demonstrate the operability, efficiency and potential capabilities of the developed methods during hydrocarbons (HC) accumulations searching. The studies performed on oil and gas drilling sites confirmed the feasibility of additional works conducting with using direct-prospecting methods when choosing sites for their laying. Within deep channels (volcanoes), filled with sedimentary rocks of 1–6 groups, signals (responses) are almost always recorded at the resonant frequencies of hydrocarbons (HC) and, in many cases, amber. Signals at the frequencies of oil, condensate and gas are also recorded quite often in volcanoes, filled with limestone. In volcanic complexes filled with sedimentary rocks of 8–10 groups (dolomites, marls, siliceous rocks), responses at frequencies of oil, condensate, and gas have never been recorded. In many areas of the survey, in the contours of responses from the HC recording, the existence of a 57 km boundary was confirmed, in the region of which the oil, condensate, gas and amber are synthesized from hydrogen and carbon migrating from below.
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Results of reconnaissance studies for hydrocarbon deposits within some districts in Northern Ukraine
Authors M. Yakymchuk, I. N. Korchagin and T. MikheevaSummaryThe results of exploratory studies for hydrocarbons (HC) within five districts of the Chernihiv and Volyn regions of Ukraine are presented. The studies were carried out using mobile technology of integrated assessment of the oil and gas prospects of large blocks and local areas, including methods of frequency- resonance processing of satellite images and vertical scanning of a cross-section in order to determine the depths and thicknesses of forecasted of hydrocarbons accumulations and rocks of cross-section. The results of the work testified to the advisability of conducting the detailed exploration work for hydrocarbons in these areas. On the surveyed areas, the existence of a 57 km border was confirmed, in the area of which the synthesis of oil, condensate, gas and amber takes place. Additional materials have been obtained that testify to the synthesis of water at a depth of 69 km in volcanic complexes of a certain type. The practical application of direct-prospecting technologies will help to accelerate and optimize the search and exploration process for oil and gas.
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On the prospects of hydrocarbon accumulations detection in traditional reservoirs in deep horizons of cross-section within shale gas production areas
Authors M. Yakymchuk and I. N. KorchaginSummaryThe results of experimental studies on some shale gas production areas in the USA, Argentina, and England are presented. The investigations have been conducted with using the technology of integrated assessment of the oil and gas prospects of large blocks and local areas, which include methods of frequency-resonance processing of satellite images and vertical sounding (scanning) of a cross-section in order to determine the depths and thicknesses of predicted hydrocarbon accumulations and rock. The results of studies at local sites in Eagle Ford and Vaca Muerta shale basins indicate the presence of hydrocarbon accumulations at these basins in traditional reservoirs in the lower horizons of the cross-section. Within all the examined shale gas production areas, deep channels of migration of fluids, chemical elements and minerals, filled with 1–6 groups of sedimentary rocks, were found. The materials of the work performed can be considered as additional evidence in favor of the concept of deep (abiogenic) synthesis of hydrocarbons, including those located in shale formations. Of particular interest is the survey site in England, within which there is a significant number of local zones of visible hydrogen degassing. It is advisable to conduct additional studies on its territory with the aim of a more detailed study of these local zones.
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Total Organic Carbon and Gamma Radioactivity Distribution of the Rudov Beds Formation within the Area Adjusted to Yablunivske O&G Field (Dnieper-Donets Basin)
Authors O. Karpenko, V. Ohar and I. KarpenkoSUMMARYRudov Beds is an organic rich formation within the Upper Visean (Lower Carboniferous) sedimentary complex located in the Dnieper-Donetsk basin (DDB). Its stratigraphic relation is still debatable. Rudov Beds are related to the tops of XIII Microfaunistic horizon, or related to basal part of XIIa Microfaunistic horizon. Rudov Beds are associated with play known as so-called “productive horizon V-23”. In the central part of the DDB Rudov Beds are overlying the Lower Visean carbonate formation, which was formed under the conditions of the carbonate platform. The uniqueness of regionally distributed Rudov Beds is associated with their unusual siliceous-carbonate and siliceous-shale composition, the presence of biogenic silicites; high organic matter content of mixed composition and high gamma activity. Vertically and laterally distribution of total organic carbon content (TOC) were determined according to the results of well logging data interpretation within the area Yablunivske oil and gas field. The features of the natural radioactivity of the Rudov Beds were investigated; its variability and its relation to the TOC content were analyzed. A regular trend was been identified of increasing the TOC content at 2x times towards the western part of the Yablunivske field area, which can indicate both the formation of sediments in isolated shallow sea conditions and the erosion of their upper part as a result of a break in sedimentation process. The statistical analysis shows that the anomalous values of gamma ray (GR) in the lower part of the Rudov Beds have a specific genesis, which is not correlates with the organic matter content. Keywords: Rudov Beds; TOC, gamma ray, Yablunivske oil and gas field, lateral variability.
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Geomagnetic studies at Rubaniv gas field in outer zone of Carpathian Foredeep, Ukraine
Authors V. Maksymchuk, R. Kuderavets, O. Menshov, P. Bodlak, I. Chobotok, Y. Nakalov and N. PyrizhokSUMMARYThe results of geomagnetic studies at the Rubaniv gas field in the Outer zone of the Carpathian Foredeep are considered. A detailed study of the anomalous magnetic field and the magnetic properties of rocks and soils at the zones of hydrocarbon deposits is a basement for the application of the magnetic prospecting for direct hydrocarbon prospecting. At the present study we investigate the structure of the local anomalous magnetic field in the zones of hydrocarbon fields within the Carpathian Foredeep for the identification of the genetic relation of the magnetic properties of surface rocks and soils with the microseepage of hydrocarbons. The total magnetic field vector T and its components (declination, inclination, horizontal and vertical components) along the 5 transect were measured. The soil magnetic susceptibility in transects and in the profiles (genetic horizons) were studied. The local positive magnetic anomalies with the amplitude from 2 to 8 nT and dispersion of the soil magnetic susceptibility above the Rubaniv gas field were detected. This data indicated the genetic relations between gas deposits, microseepage, and changes of the magnetic field and soil magnetism.
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Seismic-facies research in the southern near-flank zone of the Dnieper-Donets basin
Authors N. I. Nesina and V. V. OharSUMMARYSeismic data acquisition and interpretation as a key method of modern oil and gas geological exploration is widely in use to build sedimentation and sequence models, detailed analysis of geological column, and the prediction of local non-anticline type lithological objects that could be potential hydrocarbon traps. Stratimagic software of Paradigm Geophysical seismic facies analysis (SFA) was applied to 3D seismic exploration data acquired the in several areas in the Carboniferous of the Dnieper-Donets Basin. This paper presents the results of SFA on the Livenska area located in the central part of the Southern Near-Flank zone of the Dnieper-Donets Basin. The purpose of the study was to map the local lithological hydrocarbon prospects in the upper part of the Bashkirian (Middle Carboniferous) sequence and to identify zones of gas-bearing sandstones distribution (B-22–23 pay horizon) in the Upper Visean (Lower Carboniferous) sequence. As a result, the seismic facies maps with a set of other maps were built for both stratigraphic intervals. They confirmed the presence of the paleo-channel in the Bashkirian sedimentary sequence and a zone of gas-bearing sandstones in the Upper Visean ones. So, it has been shown that Stratimagic software is an effective tool for the sedimentary record detail investigation.
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Identification of non-structural traps based on AVO-analysis and Elastic Inversion within the northern edge of the Dnieper-Donets Depression
Authors P. Kuzmenko, I. Mykhalevych and S. VyzhvaSummaryNon-structural traps in the sedimentary stratum of the northern edge of the Dnieper-Donets Depression had not explored sufficiently by seismic methods. In this work, the authors demonstrate research and analysis of seismic data elastic characteristics using methods of AVO-analysis and elastic inversion with identification of lithologically trapped gas-saturated object. Alongside with the positive experience of acoustic contrast objects on seismic data identification, the authors present the generalized limitations of using AVO-analysis and elastic seismic inversion, in particular, within the northern edge and the whole Dnieper-Donets Depression.
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Recommendations for wells drilling in the unfavorable structural-tectonic conditions
Authors S. Vyzhva, I. Solovyov, V. Kruhlyk and G. LisnySUMMARYProspects for further exploration and exploitation of hydrocarbon fields with practically exhausted potential of structural-tectonic traps have been analyzed. Appropriate approaches are proposed to identify new traps in such fields or areas. They are based on a comprehensive study of horizons promising for hydrocarbons. Such study involves the analysis of regional oil and gas horizons, the attraction of additional geological and geophysical information from adjacent fields or areas and the use of direct hydrocarbon indicators. Studying the behavior of regional productive horizons within the license area helps to identify common factors for the presence of hydrocarbons. Geological and geophysical data of adjacent areas allow us to extrapolate these data and to obtain the prerequisites for the detection of perspective fragments of structural-tectonic traps. At the same time, the use of direct hydrocarbon indicators is the most reliable way to detect hydrocarbon traps of any type. Together with the possibility of detecting oil and gas traps, the use of direct indicator technologies allows us to estimate the amount of hydrocarbon resources discovered. The above approaches have revealed areas promising for the presence of hydrocarbons in the sediments of the Moscow stage of middle carbon. It is has been recommended the well drilling for sediments of the regional production complex M-7.
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Experience of the 3D interpretation of gravity data in the southeast of Volyno-Podillya
Authors S. G. Anikeyev, B. B. Hablovskyi, S. E. Rozlovska, M. V. Shtogryn and A. E. ZagraySUMMARYThe southeastern part of Volyno-Podillya in the oil and gas prospective is considered to be poorly promising. Nevertheless, some prospects are associated with structural forms on the surface of Cambrian rocks and with the rocks of the crystalline basement. Given the scarcity of drilling and seismic data, the role of other geological and geophysical methods, in particular gravity prospecting, is significantly increasing. For example, erosive incisions on the surface of the Cambrian, predicted by Kh. B. Zayats, are probably filled with terrigenous deposits of the Ordovician. Zones of lower density of rocks and incisions are associated with the buried tectonic zone and with lowering of the crystalline basement behind longitudinal faults. These oil and gas prospective zones are displayed in the gravity field by bands of negative anomalies. Therefore, there is a reason to predict the existence of the promising areas based on the interpretation of gravimetric data. The paper presents an analysis of the morphology of local anomalies of the gravity and magnetic fields and density distribution patterns scheme along the surfaces of the Precambrian, Paleozoic, and Mesozoic according to the solution of the three-dimensional gravity inversion.
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The experiences with anisotropic averaging transformation of gravity and magnetic fields (on the example of the southeast part of Ukrainian Carpathians)
Authors S. G. Anikeyev, S. E. Rozlovska, B. B. Hablovskyi, M. V. Shtogryn and M. O. KarpenkoSUMMARYThe prospects for finding new oil and gas deposits in the Carpathian region largely depend on the possibility of clarifying and detailing the fronts of tectonic zones and deep faults, as well as thrusts and linear complications of the sedimentary cover, the position of which depends on the depth of the slice. These extended linear structures in gravity and magnetic fields are displayed by substantially elongated anomalies, chains of small local anomalies, contours of a sharp change in morphology of field or gradient bands. Isolation and tracking of anomalies that are hidden in a complex regional background or obscured by other factors are carry out with transformations. The probable geological content and estimated depth of the sources of localized groups of anomalies are determined by the frequency and relative depth characteristics of the transformations. The paper proposes variants of combined isotropic and anisotropic transformations of averaging, which, according to their characteristics, are intended to detect local and substantially elongated anomalies of a certain direction, as well as the approximate depth of their sources, in gravity and magnetic fields. Examples of experimental application of these combined transformations are also given.
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Estimation of the pore space structure of tight gas reservoirs of the Moscovian stage locates in DDB Eastern part using a limited well logging dataset
Authors O. V. Oliinyk, V. V. Antoniuk, I. M. Bezrodna and N. V. RusachenkoSUMMARYDuring the exploration, productive intervals identification, and development of tight gas reservoirs fields, an important part is the accurate determination of the capacity, and the structure of the pore space.
For the first time, the technique of Prodaivoda G., Vyzhva S. and Bezrodna I. was used for determining the pore structure of the tight gas reservoirs (porosity cutoff is 4%).
The authors have synthetically generated bulk density and S-wave velocity logs through the multi-mineral model and using the Greenberg-Castagna equation.
According to a limited of well logging dataset, the authors have determined the tight gas reservoirs pore structure of the Moscovian stage in the Spivakivskyi gas-bearing region which locates in the Eastern part of the DDB.
It is established that the void space of the investigated gas reservoirs is mainly composed of tight pores (PHI,tight - 4–7.8%). Fractures are in the intervals of 4136.9–4137.1 m and 4127.9–4128.6 m and PHI,fr is 0.25% and 0.1% respectively. Intergranular pores are almost absent, but in some intervals PHI, int.gr is 0.1–0.9%.
Estimation of the space structure of the given rock intervals provides additional valuable information for further wells stimulation in order to obtain hydrocarbon inflows.
Keywords: tight gas, reservoir, space pore structure, well logging.
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The influence peculiarities of the chemical composition of washing liquids on the results of electrical and acoustic methods
Authors O. N. Trubenko, D. D. Fedoryshyn, R. O. Marynchak, S. D. Fedoryshyn and A. O. TrubenkoSummaryThe problem of the influence of different chemical agents on the results of electrical, radioactive and acoustic methods and the inconsistency of their results with the actual parameters of the reservoir rocks in the Paleogene and Neogene deposits of the gas and gas condensate deposits of the Krukenitsky depression of the Precarpathian Trough are considered.
The diffusion potentials dependence on the concentration of chemical reagents with contacting solutions have been established. The factors that lead to the improvement of the breakdown of thin-bedded Paleogene and Neogene geological sections of gas and gas condensate fields within the Krukenitsky depression are established.
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The use of integrated geological, geophysical and technological information to divide a section into homogeneous intervals and make decisions when drilling wells
More LessSummaryImproving the efficiency and quality of well drilling largely depends on improving the quality of information received. The quality of decisions made during drilling also substantially depends on the quality of information. Widely used in recent years in world practice, geological and technological research in the process of drilling allows us to solve a number of problems in the drilling process, when information about the section of the well being drilled is missing or is available in a limited amount. The application of the results of the complex of geological, geophysical and technological research allows you to more deeply study the section and thereby improve the quality of decisions. This paper is devoted to the analysis of information obtained during drilling, assessment of its quality, its application for identifying homogeneous intervals on the example of four wells in the Bahar field, which helps to improve the quality of decisions at various stages of drilling.
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The results of testing methods of frequency resonance processing of satellite images within areas of technical micro-diamonds (lonsdalite) deposits location
Authors M. Yakymchuk and I. N. KorchaginSummaryThe results of reconnaissance studies in the areas of Ilyinetsky and Popigaysky craters (ring structures) location, as well as the Kumdy-Kol micro-diamond deposits in Northern Kazakhstan are analyzed. Additional facts have been obtained in favor of the volcanic nature of all investigated structures. These evidences are the roots of deep channels (volcanoes), filled with ultramafic rocks at great depths: 723 and 470 km. Within all three objects of the survey, no responses from kimberlites and traditional diamonds were recorded; signals at the resonant frequencies of technical micro-diamonds (lonsdalite) were recorded. By the cross-section scanning the following intervals of the responses from lonsdalite fixing are identified: Ilyinetsky structure – 300 m - 23–24 km; Popigai Crater – 290–16730 m; Kumdy-Kol deposit – 70–2420 m. The conducted studies also suggest the possible synthesis of the lonsdalite mineral in volcanic complexes, filled with ultramafic rocks. It is advisable to conduct a survey of volcanoes of this type in order to record responses at the resonant frequencies of this mineral. Lonsdalite detection sites in various regions are also worth exploring. In general, mobile direct-prospecting technology of frequency-resonance processing of satellite images and photographs can be used to study the deep structure of ring structures in different regions of the globe and their genesis establish.
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3-D geochemical modelling of molybdenum mineralization at the East flank of Serhiivka complex Au-Mo deposit
Authors V. Sukach, O. Hrinchenko, I. Antykhovych and L. RiazantsevaSUMMARYSerhiivka is a complex Au-Mo deposit of Middle Dnipro granite-greenstone province of Ukrainian Shield, that is situated in the southern part of Sura greenstone belt. The Serhiivka deposit an be subdivided into two ore sites – Central Serhiivka with predominant gold mineralization and East Serhiivka that is characterized by predominant distribution of molybdenum mineralization. This paper discusses 3-D model created on the base of chemical and geochemical data available for the East flank of Serhiivka deposit. Dataset includes 137 boreholes, 12026 samples and 109314 analyses.
Mineralization patterns and distribution features of Mo, Au, Cu and Ag are studied with application of following software programs – Isatis (three-dimensional variogram analysis, three-dimensional geostatistics), ArcGis (mapping of two-dimensional data array, two-dimensional constructions) and EMS-I GMS (mapping of three-dimensional data array, three-dimensional geostatistics). In future, 3-D model created might be used for optimal location of exploration borehole grid and mine workings at subsequent stages of exploration and possible exploitation of Serhiivka complex Au-Mo deposit.
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The use of 2D/3D GIS software for exploration purposes: case studies from Canada and Ukraine
Authors K. Poliakovska, I. R. Annesley, O. Ivanik, J. Sykes and K. PandurSummary2D and 3D geomodelling is a great tool for visualization of different geological systems and allows us to better understand a given prospective mineralized area.
In this research study, 2D/3D geological-geophysical models of some areas within the Canadian (Alces Lake property (SK, Canada) and Ukrainian (Azov Block) Shields were constructed.
The Alces Lake property is located within the Beaverlodge Domain, about 28 km north of the Athabasca Basin margin and has one of the highest rare earth element (REE) grades in the world. The REEs within Alces Lake are hosted in monazites within granitic to residual melt pegmatites, which are associated with biotite-rich (+/− sulfides) paragneisses.
In Ukraine, most of the REE deposits and occurrences are located within the Ukrainian Shield with the Azov Block being one of the most promising areas. The Yeliseyev field of differentiated REE pegmatites, the Zelena Mogyla and The Balka Kruta deposit were studied.
During the process of geomodelling, three-dimensional structures, surfaces, and mineralization objects were built based on drill hole core/down-hole data, geophysical data (magnetics/gravity/EM), geochemical data, topographic data, assessment and technical reports, and geological maps etc. The resulting models show the distribution of REEs within the different properties and outline some potential targets.
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New (?) calcium-thorium-uranium silicate (calciothorouranite) from thorium-uranium ore albitites from the Novooleksisvka ore occurrence, the Ukrainian Shield
Authors I. Mihalchenko and A. AndreevSummaryThe article presents the results of a study of calcium-thorium-uranium silicate, which was discovered by the authors in the Precambrian thorium-uranium albitites of the actinolite-diopside group of metasomatic facies of alkaline sodium metasomatites of the Novooleksiivka ore occurrence of the Partizansky ore field of the Central-Ukrainian ore district. It is shown that the main components of the chemical composition of the mineral are UO2, SiO2, ThO2, CaO. The usual impurities are FeO, Y2O3, Al2O3, BaO. The content of PbO in the different crystals vary within (3.05–11.6) %. The chemical composition of the mineral is not constant, apparently due to significant epigenetic transformations. The signs of transformations are manifested of the presence of reaction boundaries with the epidote (the latter seems to be “eating” this radioactive mineral), transformations in region of boundaries with the albite, of the presence of numerous cracks, which are filled with uranium black with a significant impurity Pb. The detected calcium-thorium-uranium silicate differs by high content of ThO2, CaO, Y2O3 from Calciothorite, Nenadkevite, Uranophane, Coffinite, and a high content of UO2, CaO, Y2O3 from Calciothorite. Probable crystal-chemical formula of calcium-thorium-uranium silicate – (Ca2,U,Th,) [SiO4]∙nH2O. In the case of proving that this silicate is a new mineral, we are proposed to call this mineral calciotorouranite. The existence of an isomorphic series of calciotorite-calciocoffinite (the latter is not yet known) is assumed.
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Peculiarity of inelastic properties of sedimentary SiO2, foam polystyrene
Authors A. P. Onanko, D. V. Charnyi, Y. A. Onanko, M. P. Kulish, O. P. Dmytrenko and R. V. HomenkoSummaryThe analysis of the elastic anisotropy parameters sedimentary rocks SiO2 showed that the rhombic approximation provided the maximum harmonization of the calculated and the experimental data and the efficiency of using the invariant-polarization method to solve the acoustic texture analysis problems. The general conclusions were obtained: they are represented by fine grains with grain sizes d ˂ 100 mkm, the same range of values of quasi-longitudinal ultrasonic velocity VP, elastic module E, “fast” quasi-transverse ultrasound velocity VS, shear module G, Puasson coefficient μ, Debye temperature θD, the open porosity coefficient KPO is high.
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Peculiarity of elastic characteristics of sedimentary SiO2, zeolite, foam polystyrene
Authors A. P. Onanko, D. V. Charnyi, Y. A. Onanko, M. P. Kulish, O. P. Dmytrenko and S. A. PopovSummaryThe most pronounced types of acoustic symmetry are found in sandstones SiO2, but in limestone CaCO3 samples exhibit the least pronounced symmetry type and the lowest value of the integral anisotropy coefficient Aμ. The highest values of phase velocities V and elastic constants Cijkl were found. The measuring of internal friction background in sedimentary SiO2 after mechanical, heat treatments gives information about the changing of defect nanostructure and the thermoelastic strains fields. The broadening of internal friction maximum represents the relaxation process of structural defects new types.
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Retrospective monitoring of changes in land areas under the quarries of the Irshan Mining Plant based on the analysis of different space images
Authors S. I. Tymchenko, M. S. Kovalchuk and I. M. BaysarovychSUMMARYRetrospective monitoring of the change of land areas under the quarries of the Irshan Mining plant was carried out. The Landsat 4–5 and Sentinel-2 space imagery were used to determine the trend of changing land areas incorporated by the quarries. Studies have shown that the area of disturbed quarries land is growing annually and increased by 330.12% during 2005–2018.
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GIS technology in the geological and technological modeling of iron ore deposits
Authors O. V. Plotnikov, M. M. Kurylo and V. S. StapaySummaryGeological and technological mapping is one of the main areas of activity of the geological service of mining enterprises. It makes it possible to assess the reserves of technological types and varieties of ores, their spatial distribution within deposits, and to carry out rational, complex development and processing with a forecast of geological and technological properties. Technological mapping’s efficiency is provided with using of geological and technological models of the deposit. These models were developed in the process of structural and technological mapping of BIF deposits within the Kryvyi Rih region.
To link the structure between the ledges, one of several options is selected: matching using polynomials, polyharmonic functions, or cubic splines. The experience of BIF deposits mapping within the Kryvyi Rih region shows that the most preferable results are obtained using cubic splines.
For deposits with a complex structure, the combination is carried out taking into account the structure of the deposit (the presence of tilted folds, breaking faults). Better results are obtained using interpolation splines. Deposit’s models done with this method in the best way describe geological structures. In areas of deposits with highly developed multi-order folding or complicated by folds of drawing, good results are obtained by interpolation using polyharmonic functions. The creation of geological and technological maps and sections using polynomials gives acceptable results only in certain sections of deposits characterized by monoclinic or slightly folded beds of layers of ferruginous quartzites and schists, not complicated by large folds of fractures.
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Three-dimensional model as the basis for exploration planning (as an example, the Prutivka copper-nickel deposit)
By N. BariatskaSummaryThe area of use of the three-dimensional deposit model depends on the confidence and accuracy of the initial data. Models based on retrospective (historical) data can be used to prospective assessment of the deposit and exploration work planning. These capabilities are demonstrated by the example of the Prutivka copper-nickel deposit.
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The use of retrospective data for creating 3D models on the example of the Balakhivka graphite deposit
By N. SafronovaSUMMARYThe creation of an electronic archive, database of retrospective data and their use for creating 3D model is considered on the example example of the Balakhivka graphite deposit.
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Stratification analysis of productive layers of BIF deposits based on Markov chain theory
Authors O. V. Plotnikov, M. M. Kurylo and V. S. StapaySummaryPrecambrian ferruginous-siliceous formations are characterized by heterogeneous stratification from a few millimeters to the first hundreds of meters. Stratification is due to changes in sections of layers composed of various natural varieties of ores and waste rocks (magnetite, hematite, quartz, silicate, carbonate and their combinations, as well as schist).
During the exploration and exploitation of iron ore deposits, it is often important to know which layer (which ore or the ore-free ones) will be opened by a drill holes or mining, and this depends on whether there is a pattern in the alternation of layers in the section. Such problems can be solved using Markov chain theory.
It is defined that the alternation of natural varieties of ferruginous quartzites and schists in the productive strata of BIF deposits is probabilistic and can be described by the second-order Markov chain. This regularity allows to apply the apparatus of Markov chains for forecasting technological types and grades of ores on undisclosed areas of deposits in the planning of mining operations at mining and processing enterprises.
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Inner structure and kinematic of the Mankivska fault zone
Authors S. V. Mychak, L. V. Farfuliak, A. V. Marchenko and V. M. BelskyiSummaryNew geophysical, geochemical and petrological data of the linear geological structure of fault-dyke nature have been considered in the crystalline basement of the western part of the Pobuzhsky Mining District of the Ukrainian Shield. This structure is expressed in a magnetic field as linear anomaly with intensity greater than 1000 nTl up to 1.5 km in width, with scale 1:50 000. Stretching of the structure (north-south 69 °) is perpendicular to the general latitudinal and northwestern direction of the geological formations of the study region. The northwestern flank of this band of the maximum magnetic anomaly for more than 40 km is accompanied by an expressed linear minimum, which corresponds to the axial part of the Mankivska fault zone. This tectonic lineament has until recently had no analogues agree geophysical features, tectonophysical measurement, extent and direction in the western part of the Ukrainian Shield.
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Geoinformation Assessment of Kanivsky Prydniprov’ye Paleorelief by Structural Morphometry
More LessSummaryKaniv Dnieper area is a unique region that has evolved through the Neogene-Quaternary phase. The application of geological and geomorphological methods, remote sensing data and GIS made it possible to identify the genetic relationship between the processes of geomorphogenesis and tectogenesis within the Kaniv Dnieper region, to build a number of geological and geomorphological models. The methodology of structural-morphometric analysis is adapted to the GIS and the process of cartometric constructions is automated. An algorithm for creating order maps of valleys and basal surfaces has been developed. Basal surfaces are complex surfaces that combine local erosion bases and express the total movements of the earth’s crust over various time intervals. A study of the morphogenesis and tectogenesis of the territory of the Kaniv Dnieper region showed that the neotectonic movements within this region had a differentiated character. Five stages of tectonic evolution were determined during the Neogene-Quaternary stage of its development. Hypsometry of basic surfaces of five orders was investigated, and a detailed comparison of the morphology of single-order surfaces has been made. On the basis of the obtained data on the nature of the surfaces, absolute and relative elevations, the nature of the isobasite pattern, the geomorphological structure of each stage has been analyzed in detail. The conducted studies revealed a regular relationship between the relief and tectonics.
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Methodological principles of creation of the integrated database of geological and geomorphological monuments of Ukraine
SummaryThe theoretical and methodological principles of the identification and scientific substantiation of the selection of natural monuments are underdeveloped in Ukraine.
The aim of this paper is to introduce an integrated methodological approach: a) to substantiation of selection of geological and geomorphological sites and 2) to elaboration of integrated database of this category of natural monuments in Ukraine. The proposed database can be used both for educational and practical purposes, i.g. spatial planning of nature conservational framework in Ukraine, the eco-network, development of nature science tourism, etc.
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A first attempt at the regional implementation of a geoarchaeological site database for Ukraine: study areas of the Volyn’ Upland and the Transcarpathian Lowland
Authors O. S. Bonchkovskyi and N. P. GerasimenkoSummaryThe regional databases of geoarchaeological sites are elaborated in detail for two contrasting areas as a first step in creation of the database for Ukraine. The analysis of the literature sources and the authors’ field and analytical studies forms a base for their construction. The databases were firstly formed using Excel. To provide fast coordinate setting of the databases and to transfer the information from one software to the other, all tables in the format .exe were converted to the format CSV. The .exe format is easily imported into GIS programs with a use of geographical coordinates projection WGS-84. The database in the format GeoPackage (with the attributive table) is produced by an import of CSV file into Quantum GIS. This format is chosen for convenient export of the data into an interactive map. Its usage provides fast feedback when searches are made with a use of SQL-queries. The analysis of two regional geoarchaeological databases demonstrates that sites in Transcarpathia are studied with a better usage of geoscience methods than sites in the Volyn’ Upland. To provide a reliable correlation between palaeoenvironments in separate areas, databases using the same methodology are under construction for the whole area of Western Ukraine.
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