Introduction. The current state of the development of Cenomanian deposits is associated with a significant decrease in reservoir pressure relative to the original and as a result of a decrease in the productivity of producing wells. As a result, the conditions of removal from the bottom of wells coming from the formation and condensing water worsen. The accumulation of water leads to an increase in filtration resistance, a further decrease in productivity and, as a result, to the spontaneous shutdown of wells. Materials and methods of research. Without special geological and technical measures aimed at maintain- ing the operation of such wells, further operation is impossible. To date, the fields of Western Siberia have found the use of such measures as: periodic purging of wells with the release of gas into the atmosphere; treatment of well bottom solid and liquid surfactants; replacement of tubing for pipes of smaller diameter; the use of a plunger Elevator; cyclic injection of dry gas into the annular space; application of modular compressor units and use of concentric lift. Results and Discussion. The most important drawback of the concentric lift technology, when metal pipes are used, is the need to kill the well and the resulting negative impact on the bottom-hole zone of the reservoir by the process fluid, as well as a long downtime of the well with significant capital costs. Currently JSC «PskovGeoKabel» designed and manufactured polymer reinforced pipe and device for its descent into the well without killing a single cut. The developed complex was tested at the Urengoy field. The results of gas-hydrodynamic studies of wells showed that after the descent of the concentric lift column, the coefficient of filtration resistance of the bottom-hole formation zone practically did not change. Conclusion. The most promising technical solutions for the operation of spontaneously stopping gas wells are: injection of surfactants at the bottom, the use of modular compressor units that allow to regulate the technological mode of the wells regardless of the pressure at the entrance to the DKC and the use of a concentric Elevator with reinforced polymer pipes without killing the well.

In this review of researches of domestic and foreign authors the problem of increase of a component of gas condensate layers is considered. Introduction. The reasons for the reduction of component recovery in gas condensate fields and solutions to this problem are discussed. Improving the performance of existing wells based on the phenomenon of decompression beginning of condensation of the condensate with increasing of the composition of hydrocarbons «pentane + higher». Methods for pumping water or inert gas along the ield circuit to maintain reservoir pressure at the supercritical level are also considered, but they have not been distributed. Materials and methods. The rational operation methods are based on the idea of maintaining reservoir pressure above the condensation pressure. In contrast to oil production, in the operation of gas condensate fields are used, as a rule, modes of development of productive formation «at depletion». On an industrial scale, the only method used to maintain reservoir pressure at the supercritical level is the Cycling process, i.e. injection of dry methane into the reservoir [1]. Results and discussions. The use of a particular field development scheme with an impact on the reservoir should allow for the additional extraction of some of the residual gas and condensate reserves. In oil fields, well washing with various solutions is widely used. For gas-condensate fields, except for solvents, which eliminates mudding of nearield is proposed the injection of reagents that produce heat during the reaction. Due to the increase in temperature, the phase equilibrium of the gas condensate mixture is shifted towards the gas phase, which should lead to an increase in the yield of gas condensate. The article discusses some of the results of the work devoted to solving the issues of the most complete extraction of gas from productive formations. Summary. All promising physico-chemical methods of influence on the formation in order to increase condensate recovery can be classified as follows: 1. Rational operation of a single well or field as a whole. 2. Injection of gas or liquid into the reservoir. 3. Use of solvents. 4. Impact explosion, acoustic and elastic waves, electromagnetic impact. 5. Thermal effect. The study showed that different operating scenarios can adjust the composition of the extracted products and the amount of condensate in the reservoir.

The article analyzes the methodology of geoinformation and cartographic support of studies of migration and demographic processes. On the basis of international and in-house experience developed technological features of GIS technology for the organization and management of big data (big data). As the most effective method of spatial data analysis, multi-scale monitoring is proposed, based on the application of geoinformation practices that allow not only qualitatively accumulate information, but also visualize it. The team of authors has been studying migration and socio-demographic processes in Russia for many years, actively uses geographic information and cartographic approaches as research support, develops cartographic materials [2]. Materials and methods of research: A detailed analysis of the sources and types of information that fill the database of spatial data, which are used as the data of current population records (state statistics Committee), national census data, information obtained in the course of sociological surveys and processing of arrival and departure coupons for a long period of time. The information is systematized by blocks, which simplifies further data processing and obtaining analytical and cartographic reports. The results of the research and their discussion: The analysis of the methods and methods of cartographic visualization used to support research: the centrographic and typological method, etc. Prepared during the study of migration and socio-demographic processes cartographic material is systematized in the form of a cartographic database. This approach allows you to store the results and allows you to quickly use in research and practice. The main conclusions and discussion: The methodology of geoinformation monitoring of demo-migration processes has been tested and proved its effectiveness, which is reflected in the series of published publications «Migration processes in Russia. Atlas» [2], «Ethnic Atlas of Stavropol Krai» [3], «Ethnic aspects of urbanization in Russia» [9].

Introduction. The study aims to analyze and summarize data on the current status of the development of tourist infrastructure of the South of Russia. The analysis of the territorial organization of accommodation establishments, catering facilities and transport infrastructure of the region is presented. The significance of the study of tourism infrastructure in the South of Russia is substantiated. Materials and methods. The study is based on a compilation of official statistics of the Federal State Statistics Service using cartographic and geoinformation modeling methods. The following indicators were selected as mapped indicators: the number of places in accommodation establishments and catering facilities per capita, as well as the density of public roads of local importance owned by the municipality. Discussion of the research results. As a result, the most “weak spots” of the tourist infrastructure in the territorial aspect and the “growth poles” were identified. Conclusions are presented on the main trends in the development of collective accommodation establishments and catering facilities in the South of Russia, the main patterns of development of the transport complex of the macroregion are revealed. Findings. The GIS-based analysis of the territorial organization of tourist infrastructure in the South of Russia allows us to identify: the development of coastal territories as “growth poles”; focal nature of the localization of accommodation and catering establishments in the mountainous territories; involvement in the recreational use of the Volga-Akhtuba floodplain; uneven transport development of the eastern and southwestern regions of southern Russia.

Introduction: sustainable development is recognized as basics concept for harmonious long-term development in Russia and on the global level. It implies simultaneous achieving social, economic and ecologic sustainability. Assessment of sustainability is actual for territories of Russia as far as it reveals profound differences caused by historic, cultural, social, economic and natural factors. Assessment of economic sustainability looks the most difficult since it needs calculation of ecological externalities and definition of optimum economic production level. The author propose methodology of express-assessment of Russian regions economic sustainability on the base of free and regularly published statistical data. Materials and methods: two synthetic indicators were used for assessment of quantitative and qualitative aspects of economic sustainability. Quantitative aspects were assessed on the base of per capita regional product deflated data. Qualitative indicator was calculated using data on economy structure and structure of manufacturing - the share of regional product related to exploitation of non-renewable resources and sufficient environment damage was identified on the base of this data and expert assessment. Results: almost a half of regional product in Russia was related in 2017 to exploitation of non-renewable resources and environmentally threating economy. Corresponding indicator has been oscillating without obvious trend since 2005. While it has slightly improved in most regions of Russia with historically low primary production, it has worsened greatly in some regions where mining projects had been launched (Nenetsky, Sakhalyn, Astrakhan regions and others). Per capita regional product in constant prices had been quickly grown since 1999 until 2007, but it has been stagnating since 2012. There no pronounce changes of per capita regional products in most regions since 2014 to 2017. The only exception - it's significant growth in both regions of Crimea. Conclusion: there no success in turning from commodity dependence for the 2005-2017 period in Russia. Stronger economy growth is observed in Eastern regions but it in most cases relies to intensification of natural resources exploration. Strongest changes of per capita regional product since 2007 to 2017 usually relates to changes in mining industry production and in minor cases it relates to efficient management of regional administrations which succeeded to attract private investment.

Introduction. It is known that under conditions of free fall in clouds and precipitation the drops deform and take different forms. Experimental work carried out in the wind tunnel shows that the drops under the influence of the electromagnetic field deform even more. Such works allow to more accurately estimate the size, shape and orientation of the drops, which are used in the study of their scattering properties (backscattering cross sections). Materials and methods of research. To determine the shape factor of drops growing in thunderstorm clouds, the results of numerical modeling, laboratory studies in a wind tunnel and field experiments with a polarimeter were used. In the case of spherical drops, the scattering characteristics were calculated by Mie. For deformed drops, a variable separation method modified for particles of free spheroid shape was used. Research results and discussion. Calculations of the backscattering cross-section of deformed drops growing under the influence of a horizontal electric field are carried out. Drops with different degrees of deformation are considered. For comparative analysis, the calculations of the backscattering cross-section of spherical droplets are presented. It is shown that with an increase in the degree of deformation of drops growing in the electric field, the values of backscattering cross sections deviate more significantly from similar values for equivalent spheres. Summary. The obtained results can be useful in the development of methods of thunderstorm clouds' radar research.

The formation of a multipolar world determines the construction of new directions of long-term forecasting of the international agenda. Significant opportunities for the implementation of these goals are provided by the use of Atlas information systems. The principles, methodology and technology of creating a specialized Atlas information system for monitoring the geopolitical situation in the Greater Mediterranean are considered. The combination of cartographic, GIS, statistical and strategic approach, implemented in the framework of the concept of AIS allows you to create not only the form-driven visualization of geospatial data, but to use the app for analysis and forecasting of situation development in the region on various parameters, recommendations for managerial decision-making in foreign policy and the instruments of «soft power».

Introduction. The paper describes the methodology for applying the algorithm of mathematical cartographic modeling of typological maps to develop a typology of the demographic situation and the use of these tools for geodemographic research and monitoring of a vast territory. The formation of sound ideas about the differentiation of geodemographic space makes it possible to quickly signal the required changes in the demographic policy and socio-economic transformations of a particular territory. Materials and methods of research. In the framework of the study of the demographic development of the countries of Europe and Russia, three typologies were developed based on various sets of indicators. The thematic content of three series of typological maps for the period from 2005 to 2016 was modeled. For these purposes, a multivariate typology algorithm was used for homogeneous territorial units, united into groups (taxa). Results of research and discussion. The multivariate typology gave heterogeneous results, which makes it possible to assess a wide range of territorial features of the demographic characteristics of the population and identify patterns of their distribution. So, for the typology of the second option, instead of the indicator of life expectancy, the general mortality rate was used, which strengthens the significance of this development for the analysis of the demographic movement of the population and gives a clearer idea of the causes and genesis of the dynamics of the demographic situation. In this particular case, calculations of the heterogeneity coefficient showed that five taxa should be distinguished. Conclusions. The developed mathematical-cartographic model of the typology of the regions of Europe and Russia for three sets of indicators of demographic development allows us to see the spatial patterns of the demographic development of the territory and consider new facets of the territorial differentiation of the regions under consideration