bluuebunny/crossref_metadata_2025_split huggingface dataset:
Structural–Tectonic Model of Hydrocarbons Formation in the Basement of the Vietnam Shelf
Authors: Kerimov V Yu , Leonov M G , Mustaev R N 
Published: April 2020

Abstract
The purpose of this study is to identify patterns of hydrocarbon origin within the Pre-Cenozoic basement of the Vietnam shelf. It is shown that the formation of hydrocarbon deposits is associated with protrusive granite massifs that underwent structural–tectonic reworking at the prototectonic and posthumous (postmagmatic) tectonic stage. Together, the posthumous structure-forming processes led to changes in the viscosity properties of rocks, their tectonic and material inhomogeneity, lamination, and, as a result, vertical and lateral spatial redistribution with the formation of granite protrusions. The mechanisms by which voids and oil and gas traps formed within protrusions are considered. Possible mechanisms for hydrocarbon migration and accumulation in basement rocks are considered. It is confirmed that the formation of hydrocarbon deposits occurred due to lateral and downward migration of hydrocarbons via contact zones from Oligocene and Miocene oil source rocks into crystalline massifs: into voids and increased fracture zones in the protrusion body.
Use of Subpermafrost Groundwater Resources for Drinking Water Supply in Yakutia
Authors: Fedorova S V 
Published: April 2020

Abstract
In central Yakutia, Russia, the use of subpermafrost water for domestic purposes is limited due to the elevated levels of lithium and some other elements. Based on a review of available data on well water chemistry, this study estimated lithium contents in groundwater of the southern Yakutian Artesian Basin. The highest concentrations of lithium were found to occur in subpermafrost water of the Lower Jurassic – Middle Cambrian aquifer system due to the presence of clay rocks. The ion exchange method was demonstrated experimentally to be capable of reducing lithium levels to the drinking water standard. A series of laboratory experiments performed by the author produced graphical curves of lithium removal from model solutions and natural subpermafrost waters. They also provided the kinetic and dynamic characteristics of the lithium removal process. In the course of the experimental studies on the subpermafrost water purification of casting by the ion exchange method, content of lithium reduced from 0.41 to 0.006 mg/L. The results of this study may be useful for developing subpermafrost water treatment schemes for drinking purposes
Determination of Methanol Content in Hydrate Inhibitor Solutions Using Raman Spectroscopy
Authors: Kalacheva L P , Argunova K K , Solovyeva S A 
Published: April 2020

Abstract
The use of methanol as an inhibitor of hydrate formation in the fields of the Far North is fraught with environmental risks and a threat to the health of personnel. Therefore, an urgent task is to find an analytical method for determining the methanol content in water-methanol solutions instead of the areometric method. One of such methods is Raman spectroscopy. In this work, water-methanol solutions used at the Otradninsky gas-condensate field are investigated. For the quantitative determination of the inhibitor content in water-methanol solutions samples, the stretching vibration bands of the CH groups of methanol molecules was selected, the intensity of which monotonously increases with increasing alcohol concentration. A comparison of the mass concentrations of methanol obtained by different methods showed that the presence of salts in water methanol solutions leads to an underestimation of the alcohol content. This entails an excessive consumption of inhibitors and an increase in the cost of gas companies to purchase and transport methanol.
Development of Arctic Diesel Fuel with Optimal Composition
Authors: Iovleva E L , Borisov A A , Stepanov P A 
Published: April 2020

Abstract
The article offers the possibility of obtaining Arctic diesel fuel, which can be used at low temperatures. The physico-chemical properties of the resulting diesel fuel are also shown. New technical conditions were developed for a new type of Arctic diesel fuel. The main indicators of the quality of low-carbon diesel fuel are low-temperature properties, estimated by cloud point, temperature and temperature limit. New arctic fuel was obtained by adding a depressant. We used the depressor additives Keroflux and Difron. When selecting a depressor additive for a new grade of diesel fuel, it was necessary to take into account not only the composition of the fuel, but also the particular structure and composition of the additives themselves. Studies by many authors have shown that the solubility of additives based on copolymers of ethylene with vinyl acetate is lower than that of copolymers of vinyl acetate with alkyl methacrylate. The article also shows the possibility of obtaining basic fuel with a given pour point directly on the direct distillation of oil. An innovative jet hydraulic mixer was used to mix petroleum products, which provides intensive mixing of petroleum products in tanks and ensures stable quality of petroleum products during storage. Such technology allows to obtain winter and arctic varieties from summer diesel fuel by adding depressor additives.
The Assessment of the Feasibility of Using Degraded Lands as a Resource in the Production of Environmentally Friendly Food for Vulnerable Populations
Authors: Stukach V F , Starovoitova N P , Dolmatova O N , Astashova E A 
Published: April 2020

Abstract
The article presents the assessment of the feasibility of using degraded lands as a resource in the production of environmentally friendly food. The problem of degradationexposed lands is addressed; the macro and micro social factors impacting the decision-making process in soil protection are identified; a comprehensive model for natural factor recovery in production by introducting organic agriculture technlogy for manufacturing environmentally friendly products. Research methods used in the article: balance sheet method for agriculture, food production and consumption; written and oral survey. We polled leadership, directors, farmers, businessmen, agrotechnologists, managers, production managers, field foremen, farm and agriculture machinery operator. The survey had questions on the real-life business life and measures taken; respondents’ opinion on the feasibility of using certain methods and technologies, respondents’ awareness of the problem and economic motivation as a result of using methods and technologies, and the social elements of the survey. The survey demonstrated the real situation in the area of land use, knowledge and respondents understanding the technologies they use and how they should be used. The social aspect of the survey helped to measure the competencies that are necessary to solve problems associated with the employed technological methods for protecting the soil system.
So, there is a need for lands where environmentally friendly production can be established with low processing intensity without pesticides and with a limited amount of fertilizers. Such an approach has become feasible from the economy point of view for Russia and other countries after they have become members of the WTO.
Experience of Stadial Analysis for Investigating Ultramicrocrystalline Rock (The Case of Structureless Phosphorites of the Okino-Hubsugul Basin)
Authors: Georgievskiy A F , Bugina V M 
Published: April 2020

Abstract
Any sedimentary rock is a complex natural formation, which was formed under the influence of many processes. One of the aims of lithologists is the occurrence and study of these processes, which is necessary for targeted searches for mineral resources associated with sedimentary rock. Analysis of order of mineral crystallization (stadial analysis) is the most successful method to solve the problems. That analysis is a brunch in lithology science aimed at reconstructing the geological history of rock. The step-by-step analysis includes methods of prospecting, optical and electronic microscopy, and diagnostics of the material composition of minerals. However, the researcher receives basic information about the processes of rock formation through microscopic observations of the features of minerals: their shapes, sizes, composition, interrelations, as well as structural and textural features. In the course of such observations, “indicator components” of rock are established with obvious signs of duration and conditions of its formation: sedimentary “indicator components” (biogenic detritus, allothigenic fragments, tufogenic material), dia- and katagenetic (nodule concretions and other varieties), metagenetic “indicator components” (crystalloblasts etc.). Further analysis of the secondary alterations in the mentioned components and their minerals allows us to make series of consistent mineral formation and, thereby, reconstruct main stages and conditions of rock formation. This, in turn, provides the key to understanding the regional geological processes that took place in sedimentary basins.
The Effect of Radon Concentration at Liquid Nitrogen Temperature
Authors: Stepanov V E , Khristoforova S E , Solovev D B 
Published: April 2020

Abstract
Experimentally obtained high concentrations of radon in an isolated container of uranium-containing minerals using liquid nitrogen. A simple device is proposed, the essence of which is based on the transformation of gaseous radon into a liquid. It is known that liquid nitrogen has a boiling point (-195,75) °C, and gaseous radon turns into liquid at (-62) °C, and at (-70) °C turns into a solid state. The low temperature of liquid nitrogen greatly exceeds the liquefaction and solidification temperature of radon. It follows that if you put a radioactive outgoing source, for example, pieces of uranium ore, into a heat-insulated container, such as a thermos or a Dewar vessel into which liquid nitrogen is poured, then radon will accumulate at the bottom of the container in a solid state. As liquid nitrogen evaporates, gaseous radon will concentrate inside the container. The technical result is to increase the efficiency of obtaining radon with emanation and the use of the device directly in stationary conditions, for example, in medical institutions. Replacing the solutions of radium salts with pieces of uranium ore from the Elkonskiy deposit from Yakutia significantly simplifies and reduces the cost of preparing radon fluids for medical procedures.
Experimental Research Into Ice-Loading of Supports of Hydraulic Structures
Authors: Yesenina N A , Zaitsev A A , Karasev Yu S 
Published: April 2020

Abstract
The paper states the problem and presents the results of experiments designed to find the ice loads of supports of hydraulic structures. Experimental studies were carried out in an ice tank. The experiments were designed to analyze how ice loads would affect a single-row set of piles, how using multiple rows would affect pile icing, and what kind of loads first- and second-row piles would have to sustain. Experimental data were recalculated in kind with adjustment to the scale of modeling; they were also calculated for the natural conditions as set forth in standards and regulations.
Supermarket as a New Type of Public and Trade Buildings in Design
Authors: Shamaeva T V 
Published: April 2020

Abstract
Supermarket is a new type of public building with commercial purposes that has big space, various goods and self-service. Basic functions: commercial and storage, additional functions: “own manufacture”, catering zones and fun zones. The technology always comes first and determines the whole design project. The recommended ratio of spaces that perform various functions in the supermarket: “consumer, entry zone” - 7-12%; trade and storage zone (retail space) - 55-65%; - warehouse zone - 8-13%; “in-house production” in a food supermarket - 12-16%; “in-house production” in a non-food supermarket - 2-5%; administrative and utility spaces in a food supermarket - 8-20%; administrative and utility spaces in a non-food supermarket - 2-8%. Rectangular buildings of supermarkets with one or two floors in the main building that has storage and warehouse functions. High-shelf storage (higher than 5.5m). Front walls with corporate colours of a chain brand.
Architectural and Urban Image of Supermarkets in the Moskovskaya Oblast
Authors: Shamaeva T V 
Published: April 2020

Abstract
Supermarkets are sales buildings characterised by complex technologies and construction and a distinct architectural and town-planning image. 20 supermarkets have researched and analysed using various criteria. Recommendations are given on the design of supermarkets: within a city they must be situated close to main motorways, in the industrial and storage zone or in close proximity; front walls must be attractive from the architectural point of view, its integration into the urban environment is important; parking lots must be designed separately for clients, lorries and personnel and must occupy not less than 30-50% of the land plot; building footprint must not exceed 30-35% of the land plot; green space area must be calculated depending on the number of visitors, but it must not be less than 5% of the land plot; recreation zones must be also incorporated into the supermarket space; fire safety rules, access to people with restricted mobility, environmental norms must be ensured at all times.
Analysis of Output Parameters of a Three-Stage Asymmetric Vibration Device
Authors: Gerasimov M D , Gerasimov D M 
Published: April 2020

Abstract
There is a long-felt need for a wider use of asymmetric vibration devices in technological processes of construction and road-building operations. The methodology of engineering and design of multi-stage asymmetric vibration devices is in the conceptual phase and requires additional analytical studies, design studies and industrial tests. Asymmetric vibration devices may consist of two or more stages of unbalanced directional vibrators, speeds of rotation of the drive shafts whereof are divisible. This article considers the effect of the interrelation of static moments of unbalance of a three-stage asymmetric vibration device on the system’s dynamic amplification factor. The article describes a method to determine the rational interrelation of static moments of unbalance using a three-stage asymmetric vibration device as an example. The article will be interesting to specialists in the sphere of production of vibrating production machines and equipment.
Natural Gas Conversion Method into the Solid Hydrate Form Using Low Ambient Temperatures
Authors: Portnyagin A S , Semenov M E , Koryakina V V 
Published: April 2020

Abstract
The article describes a method of natural gas hydrate synthesis in a closed type reactor with the possibility of using low ambient temperatures of the Russia’s cold regions. The advantages of the hydrate synthesis method in closed reactors and the possibility of their use on an industrial scale for the gas hydrate production are noted. Special closed-type reactors with different internal volumes were developed, as well as a thermal cycling technique to accelerate hydrate formation, and a concept of hydrate production technology using natural cold-air was proposed. New experimental data on the production of massive samples of natural gas hydrates with high gas saturation (130-150 cm3/g) from ice as feed in the constructed reactors are presented. A comparison of the proposed conceptual technology operations with the existing industrial technology of natural gas hydrate synthesis was made. It is shown that in closed-type reactors, from the large ice fractions during thermal cycling of the system, it is possible to synthesize natural gas hydrates in the form of massive pieces with high natural gas content (up to 90%).
Simulation of Two-Phase Filtration to Determine the Areas of By-Passed Oil Using the Velocity of Fluid
Authors: Kovalchuk T N , Gilmanov A Y , Shevelev A P 
Published: April 2020

AbstractThe article is devoted to the simulation of two-phase filtration processes to estimate the areas of by-passed oil. A number of reasons are listed for which it is necessary to estimate in advance the zones of their formation in order to choose the optimal development mode to produce more oil.There are various methods for predicting the formation of by-passed oil, they are based, as a rule, on experimental studies, including geophysical well logging. However, the models used at the moment do not allow to determine unambiguously the areas of appearance of by-passed oil. Therefore, the purpose of the this article is to obtain suitable method. The basic system of mechanics of multiphase systems and an explicit finite-difference scheme are used to achieve this goal. The proposed method can be applied to the calculation for different reservoirs with the change of corresponding parameters, initial and boundary conditions. Using the proposed model, it is shown that the presence of two distant from each other well groups leads to the formation of two areas where oil filtration occurs and two significant zones of by-passed oil.Thus, as a result of the calculations, information about the location of by-passed oil in the reservoir under these conditions is obtained. This allows to choose the most rational method of development, and therefore to produce more oil.
Determination of the Computerized Monitoring System Structure of the Small-Scaly Turbulence of the Water Environment Hydrophysical Fields
Authors: Savkova E O , Chengar O V , Shevchenko V I 
Published: April 2020

Abstract
The algorithm definition of system’ optimum structure of monitoring hydrophysical fields of the water environment inhomogeneities that provides a specified measurement uncertainty with the minimum cost of the equipment and the experiment is proposed. The algorithm uses the object-evolutionary model of the information-measuring system and the vertical arrangement model of small-scale turbulence layers.
Electromagnetic Prevention of Scaling in Oil Production
Authors: Alimbekova S R , Bakhtizin R N , Dokichev V A 
Published: April 2020

Abstract
This paper presents research into how electromagnetic and ultrasonic fields affect the inhibition of calcium carbonate crystallization. It shows that resonant-wave electromagnetic exposure effectively prevents scaling in wells equipped with electric centrifugal pumps, resulting in >6x mean time between repairs. This technology can help significantly reduce the usage of oilfield reagents to prevent or address scaling, which means lesser environmental burden.
Rhenium in Carbonaceous Rocks: ICP Mass Spectrometry of Low Concentrations
Authors: Zarubina N V , Ostapenko D S , Ivanov V V 
Published: April 2020

Abstract
This study described is about problem of determining trace and low concentrations of rhenium with using of ICP-MS spectrometry in rock samples with high contain of carbonaceous and organic components. Paper describes different ways of analysis and sample decomposition that are used in a common practice. Special attention is paid for sample preparation for ICP-MS investigations as far as it requires decomposition and disposing organic and silicate components.
Socio-economic Development of Tourism Infrastructure
Authors: Ostovskaya A A , Smirnova E A , Shendrikova S P 
Published: April 2020

Abstract
The tourism industry is the dominant factor of socio-economic growth in many countries which have similar political, historical, geographical and cultural features. This indicates considerable potential for tourism development providing the availability of the necessary infrastructure supporting the adequate functioning of the industry. The article reviews the definition of the tourism infrastructure in a number of aspects and introduces the steps of the tourism infrastructure analysis in the region. The calculation of the integrated index of the tourism infrastructure in the region is carried out by means of standardizing the indices as per separate elements of the tourism infrastructure.
Simulation of Heat Transfer in the Liquid Core of the Earth
Authors: Solovjev S 
Published: April 2020

Abstract
The results of numerical simulation of unsteady heat transfer of an electrically conductive liquid in a spherical layer modeling the Earth’s liquid core are presented. The evolution of the structure of the flow of an electrically conductive fluid, the temperature field, magnetic induction, and the distribution of local Nusselt numbers is studied. The gravitational acceleration vector is directed along the radius to the center of the spherical layer.
To the Question about Cements for Deep Wells
Authors: Savenok O V , Likhacheva O N , Timchuk E V , Shilovich O B 
Published: April 2020

Abstract
The article considers the question about cements for deep wells. Various classifications of cement mortars are considered. The time of setting for cement slurry, specific gravity of cement slurry, strength of set-cement, permeability of set-cement and waterloss of cement slurry are described. The cementing job may be recommended to be done on the deep well El Dosuky in two ways are shown.
Improving the Quality of Mine Water Treatment
Authors: Dmitrienko V A , Armeiskov S N , Dmitrienko N A 
Published: April 2020

Abstract
the article deals with the features of groundwater treatment in town Shakhty after the closure of mining enterprises. A high concentration of salts and solids in the treated waters was noted. The positive experience of phyto purification by using aqueous hyacinth - Eichornia is considered. The existing scheme of pumped ground water purification is presented and the results of studies of water temperature regime in ponds sumps of mine water are given. The possibility of providing a nutrient medium and extending the growing season of a thermophilic plant during the groundwater treatment of groundwater and wastewater is indicated.
Reliability of Assessment of Advance Anchoring
Authors: Stradanchenko S G , Dmitrienko V A , Golodov M A 
Published: April 2020

Abstract
On the example of the construction of the dismantling chamber No. 1 of the Kalinin-Solntsevskaya line of Moscow Metro, and the studies of the stress-strain states of the contour massif of rocks in the bottom zone by the finite element method, evaluating measures were taken to ensure the stability of the enclosing rocks and the camera’s protective screen. Simulation of the rock mass stress state has proved the possibility of soil hardening in the set of workings by advanced anchoring to reduce rock displacements and surface deformation. A model to determine the maximum depth of using a protective screen with long anchors has been compiled.
Research and Evaluation of the Influence of the Sizes of Nano and Microparticles of Metals on the Conversion of the Chemical Composition of Hydrocarbon Fractions
Authors: Balobaeva N N , Bryankin K V , Mishchenko S V 
Published: April 2020

Abstract
The article presents the results of experimental studies of the effect of the aggregate structure of nano- and microparticles of metals (nickel, tungsten, platinum) on the conversion of the chemical composition of the hydrocarbon fraction obtained as a result of the destruction of petroleum products. Gas chromatography determined the group hydrocarbon composition of a fraction with a boiling point up to 195 ° C, obtained as a result of the destruction of liquid hydrocarbons in the presence of nano- and microparticles of metals (nickel, tungsten, platinum). The rationale for increasing the intensity of destructive processes in the presence of metal particles of various compositions is proposed.