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Geoinformatics: Theoretical and Applied Aspects 2020
- Conference date: May 11-14, 2020
- Location: Kyiv, Ukraine
- Published: 11 May 2020
141 - 151 of 151 results
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Geoinformation toolkit for risk assessment of karst processes development
Authors I. Chepurnyi, V. Podholov, T. Chepurna and B. KarpinskyiSummaryThe research is devoted to the creation of geoinformation tools for karst risk assessment for the territory of Vinnitsa region. Risk assessment was carried out by taking into account population density and the damage of the territory by karst processes. The geoinformation toolkit is based on a modern GIS - QGIS tool using Python programming language. The assessment of the damage to the territory by karst processes and the assessment of the karst hazard of the territory of the Vinnytsia region were carried out for two territorial levels - the level of administrative districts and the level of territorial communities (village, settlement, city councils). The possibility of automated construction of population density maps, invasion of the territory by karst processes, risks of karst hazard on the example of administrative-territorial units of Vinnitsa region is realized.
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Factors affecting the value of oil and gas reserves in the bowels
Authors M. O. Karpenko, I. R. Mykhailiv, A. P. Boiko and N. V. DubeiSummaryThe value of subsurface reserves, which is quantitative lyre presented by the amount of discounted cash flow that can be obtained as a result of exploration estimated hydrocarbon volumes, is considered to be a multi-component system highly dependent on a number of geological, technological and economic factors. A regression analysis was performed to determine the separate and joint effect of the factors on the discounted cash flow and to quantify this impact using a number of criteria. It is established that not even a significant change in any technological or economic parameter, especially against the background of long-term development of the field, can significantly affect the value of reserves both in the direction of it sin crease and decrease, and the greatest influence have – the price per unit of commodity production and volume of production.
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Application of special petrophysical algorithms for select classes of reservoir rocks
Authors Y. Khomyn, M. Maniuk, V. Khomyn, O. Paliychuk, I. Piatkovska and O. ManiukSummaryMethod of classification terrigenous reservoir rocks on the example of Vygodska series Paleogene sediments at the North Dolynske field is proposed on the basis of method of calculation hydraulic units of flow (reservoir rocks). It is argued that the proposed variant groups of terrigenous reservoir rocks will significantly improve the efficiency of predicting the productivity of well sections, taking into account their significant heterogeneity and facial accessory
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On the study of geological characteristics of underground Gas storage objects
Authors V. M. Maniuk, N. V. Dubei, I. R. Mykhailiv and A. P. BoikoSUMMARYThe article presents the results of studies the influence of geological reservoir features on the efficiency of operation at underground gas storage (UGS) on the example of Bogorodchanske gas storage. A detailed analysis of geological structure and performance of Bogorodchanske UGF revealed the heterogeneity of collector properties along the section and the area, as well as the presence of poorly drained areas on the peripheral sections of structure. It is found that the achieved UGF performance on average is 85% of the projected. The decrease in productivity is primarily caused by the process of spreading active gas in the deposit and its accumulation in low-drained peripheral areas. Therefore, when designing new UGF and making adjustments to existing gas storage facilities, it is necessary to take into account the heterogeneity factor of reservoirs
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Information criteria for oil and gas content Boryslav-Pokutska area of the Precarpathian deflection
Authors R. Yaremak, G. Zhuchenko, V. Khomyn, G. Gorvanko and N. GoptarovaSummaryFor the research area, which has a complex geological structure and to which the Boryslav-Pokutska area of the Precarpathian deflection is related, in the search for oil and gas, it is important to identify a set of informative criteria for its features, which increases the accuracy of oil and gas searches. The set of informative features of oil and gas content for the research area is based on the results of determining the reference set of characteristics of reservoirs and overlapping strata at different stages of prospecting. The established oil and gas criteria were divided into two groups comprising 44 indicators.
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The results of the geological-gravitational modeling of the deep structure of the underthrust of the Ukrainian Carpathians by means of regional cross-section
Authors L. S. Monchak, S. G. Anikeyev, T. V. Zderka, N. P. Khovanets, A. V. Yarema and S. S. KurovetsSUMMARYThe results of geological-gravitational modeling of the deep structure of the Ukrainian Carpathians are presented. The usage of certain parameters of approximate structures and computer technologies, that will enable to work with complex models of geological environment, as well as the development, improvement and specification of prior model under the influence of geological analysis of the nature of the differences between observed and model fields are the main conditions of informativity and reliability of the results of modeling. The number of elevations, related to positive gravity anomalies, has been revealed within the Carpathians nappe. They are available to modern drilling. Mesozoic deposits turn out to be similar to Lopushnia oil field and lie on Paleozoic rocks within most of elevations.
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Gas-geochemical predicting and system assessment of oil and gas prospects for the purpose of increasing exploration efficiency
Authors A. V. Yarema, T. V. Zderka, S. S. Kurovets and N. P. KhovanetsSUMMARYThe methodology of the system and analytic predicting of oil-and-gas prospects of the mineral resources is suggested. The criteriality of gas and geochemical indicators are explained. The criteria parameters, systematically structured into the identity space of the geoinformation environment of oil and gas deposits, are identified. The algorithm of the computational procedures for the reflecting of oil-and-gas prospects in percent of saturation of gas-geochemical properties by geological meaning is developed; the very procedures are identified as formalized fluid storage capacities, abyssal and pressure-temperature ones, and flow and geometric reservoir properties. The procedure of identifying of reliable local gas-geochemical objects (in other words, zones of ‘minor prospecting risk’) is formalized in order to enhance efficiency of the process of their localization, thus wise to minimize the risk at later stages of exploration
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Application of mathematical statistics methods in estimating the prospects of oil and gas content of local objects in Boryslav petroleum industry area
More LessSUMMARYIndices of geological structure and oil and gas content of local objects in Boryslav petroleum industry area have been studied and analyzed. The degree of their influence on the nature of oil and gas content of structures was determined applying the methods of mathematical statistics (Student’s t-test). It has been established that the structural factor and the distance from the axis of the local structure to the deep fault are determinative in forecasting the oil and gas content of local objects of the petroleum industry area.
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Influence evaluation of the regional hydrometeorological conditions on the development of landslides on the territory of Ukraine
Authors Yu. V. Heruk and I. V. ChepurnyiSummaryThe aim of the study is to analyze the spatial distribution of hydrometeorological conditions to reveal the relationship with dynamic and development of landslides on the territory of Ukraine. The increasing dependence of the number of recorded landslides on annual precipitation and number of spontaneous hydrometeorological phenomena is established. The administrative regional coefficients of the hydrometeorological conditions influence have been calculated, which should be taken into account in the process of forecasting the landslide hazard. The results of the calculations are presented as thematic map based on influence level of the regional hydrometeorological conditions on the development of landslides on the territory of Ukraine.
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Generalization of the estimated probabilities of excess the mean annual runoff of the Pripyat River basin within Ukraine
More LessSUMMARYAnalysis and generalization of the transient ordinates from the average annual runoff to the runoff of the specified exceedance probabilities for the rivers of the Pripyat basin within Ukraine, as one of the indicators of the highest and lowest amount of water for the studied area. For this purpose, the hydrological study was analyzed (series of observations at 28 hydrological gauging section), the empirical and analytical distribution curves (by the moment and highest reliability method) were calculated for 14 values probabilities of excess ranging from 0.01 to 99.9%. Was created the mapps of the spatial distribution of transient ordinates from the norm of the average annual runoff to the runoff of certain probabilities of excess. The work was carried out with the help of basic sets of special tools of several GIS, the main of which was a free cross-platform geoinformation system QGIS.
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Analysis of a light pollution map for meteorite detection. The prospects of the development of a meteor network in Ukraine
By R. BukatiukSummaryThe investigation of meteorites is really important for understanding the processes inside the Earth, in the distant corners of the galaxy, and discovery the origin of life. The development of meteor networks allows scientists to explore the meteor parameters, locate strewn fields, and sometimes even find meteorite fragments. The first fireball networks were launched in 1960s and have been always expanding. In this work the prospects of development of such a network in Ukraine with the application of a light pollution map are studied. For this purpose light pollution and meteorite fall maps of the countries with meteor networks, such as Canada, Australia, the US, Germany, etc., are compared with those of Ukraine. Moreover, the land structure and the geographical features of the aforementioned countries are analyzed to represent the advantage of such a network in Ukraine. Eventually, a triangular meteor network for Ukraine is built. In conclusion, potential problems related to the start of such a global project are considered and the possible general ways to solve these problems are proposed
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