bluuebunny/crossref_metadata_2025 huggingface dataset:
Mathematical modeling of economic processes on the basis of the reflection theory
Authors: Gorodov A A , Shepeta N A , Goncharov A E , Bashmur K A
Published: November 2019

Doubtlessly, the process of modeling and planning economic processes is a complex procedure. The development of each specific economic system is built on plans, which are drawn up from forecasts. In this paper, the authors show the relationship between methods of exponential smoothing and autoregression. Further, the authors present the method of nonparametric selection of parameters in autoregressive models. Here, the algorithms used in the method give a comparative analysis of the results of the modeling process and retrospective forecasting is discussed. At the end of the paper, the authors give the basic recommendations on the usage of the presented method and its advantages.
Centralized, decentralized, hybrid principles of cyber-physical systems control of the Industry 4.0
Authors: Zakoldaev D A , Gurjanov A V , Zharinov I O , Zharinov O O
Published: November 2019

The task is to develop a control system for multi-agent cyber and physical systems in the Industry 4.0 production. The company control systems components are cyber and physical systems of production purpose, cloud services and applications, server equipment and industrial data transmitting channels based on the protocols of Ethernet and Internet of Things. Three scheme options are available for cyber and physical systems control: a centralized control, a decentralized control and a hybrid one. There are schemes ready for implementation into exploitation of control system different options in cyber and physical production. Advantages and disadvantages of each option are described for the computerized control system building.
Study on practical methods for treatment of oil-contaminated and domestic wastewater
Authors: Malkanduev U A , Ksanaeva M B , Salgiriev A R , Daudov I M
Published: November 2019

The implementation by small innovative enterprises of the LBR technology for household wastewater treatment, which is a complete cycle of urban wastewater treatment (WWTP), is one of the most perspective direction of strategic development of the regional economy, improving the parameters of its investment, environmental and social components. Each technological stage of technology is carried out on separate devices located indoors - a technological process of a closed hardware type. Such a process lends itself to automation, since each of the devices is technologically autonomous and can be replaced by another due to a malfunction or according to technological indications. In this way, high process stability and flexibility are achieved. All devices are of serial factory manufacturing, which ensures high quality, aesthetics and reasonable price parameters, as well as, if necessary, the ability to upgrade each unit individually. The hardware type of the technological process, being high-tech, energy-efficient and environmentally friendly, creates the prerequisites for a significant reduction in sanitary protection zones (2–6 times) and areas allocated directly to sewage treatment plants (7– 8 times). In addition, it becomes possible to flexibly change the capacity of WWTP (increase or decrease if necessary), as well as introduce purification stages necessary for specific conditions or remove unnecessary ones, without compromising the integrity of the technology and the efficiency of wastewater treatment. Implementation LBR technology by small innovative enterprises maximum environmental, social and economic efficiency and at prevent the waste of investment resources.
Impact of drought on dust storms: case study over Southwest Iran
Authors: Javadian Mostafa , Behrangi Ali , Sorooshian Armin
Published: November 2019

Dust storms are common meteorological events in arid and semi-arid regions, particularly in Southwest Iran (SWI). Here we study the relation between drought events in Iraq and dust storms in SWI between 2003 and 2018. The HYSPLIT model showed that central and southern Iraq are the main dust sources for SWI. Mean annual aerosol optical depth (AOD) analysis demonstrated that 2008 and 2009 were the dustiest years since 2003 and there is an increased frequency of summertime extreme dust events in the years 2008 and 2009. The Standardized Precipitation Evapotranspiration Index revealed that drought in Iraq significantly affects dust storms in Iran. Similarly, dramatic desiccation of Iraq wetlands has contributed to increasing fall dust events in SWI. AOD in SWI is highly correlated (−0.76) with previous-month vapor pressure deficit (VPD) over Iraq, demonstrating the potential of VPD for dust event forecasting.
Enhancement of inertial mechanical reamer for borehole 5G conditioning to penetrate into subglacial lake Vostok
Authors: Bolshunov A.V. , Dmitriev A.N. , Ignatiev S.A.
Published: November 2019

The paper reviews challenges associated with designing of equipment required to implement the selected technology of penetration into Subglacial Lake Vostok in Antarctica. It describes the design process of inertial mechanical reamer, which is required for one of the stages of the proposed penetration technology. The initial design of the reamer was developed, manufactured and tested in Borehole 5G during the seasonal shift period of the 62nd Russian Antarctic Expedition (December 2016 – January 2017). Based on the test results the reamer design was critically reviewed, enhanced and subsequently tested in Borehole 5G during the seasonal shift period of the 63rd Russian Antarctic Expedition (December 2017 – January 2018). Tests of the improved design of the mechanical reamer confirmed that the adopted design solutions are correct.
Determining the optimal wells density grid for low-permeable reservoirs
Authors: Donskikh D A
Published: November 2019

The share of oil contained in low-permeable reservoirs increases, the average size and oil reserves of the discovered fields decrease, the main geological and physical parameters of productive strains deteriorate. Accordingly, for low-permeable fields, the choice of the development system and the optimal density of the grid of wells is one of the main issues. In addition, the problem of optimizing the density of the grid of wells is related to the implementation of enhanced oil recovery methods. In the field, where the well grid density is not optimized, the application of high-tech methods of enhanced oil recovery will not be effective. Thus, the purpose of this work is to substantiate the effective density of the grid of wells for low-permeability reservoir conditions.
Algorithm for estimating loads of supports of floating platforms for extraction and processing of peat raw materials
Authors: Fadeev D V , Khudyakova I N , Vagapova E A
Published: November 2019

The optimization of peat production makes it a priority to re-equip the peat industry with new and modernized equipment based on energy efficiency and energy conservation. One could construct more and more new stations and increase energy production by exhausting resources, but one could come up with fundamentally new technologies and energy systems through the accumulation of energy in advanced energy-dense materials and related systems. In other words, it is more reasonable to replace today’s end user with much more budget-friendly and safer energy systems. The systems, as such, should be reliable and easily repairable.
Analysis and choice of construction of the detachable core assembly for casing while drilling
Authors: Gorelikov V G , Lykov Yu V , Rabota E N , Uspekhov A M
Published: November 2019

The distinguishing features of drilling the upper strata of sedimentary rocks are considered. Based on the methods and technical means for drilling wells while casing, the main directions for the development of a removable core drill that can be used for drilling with a casing string are established. The results of field testing of the detachable core for drilling while casing are shown.
Removal of burrs from small-size high-precise parts for SHF electronics
Authors: Karlina Yu I , Kargapoltsev S K , Gozbenko V E , Karlina A I
Published: November 2019

The technology of signal transmission without distortion and loss is critical to modern electronic equipment. To reduce direct SHF losses, ensure solderability and corrosion resistance, the outer and inner conductors for SHF electronics are mainly made of 29HK alloy for hermetic connectors and beryllium bronze for non-hermetic galvanized connectors. These parts require high dimensional accuracy (10-50 microns) and surface cleanliness: no burrs are allowed. The production of such small-sized high-precision products from hard-to-machine materials requires the use of special manufacturing techniques and appropriate equipment.
Design and technological capabilities of the TiNi alloy ring-shaped bundle force elements
Authors: Khlopkov E A , Makarova T A
Published: November 2019

The usage of layered compositions in mechanical engineering technology can ensure effective reduction of various systems vibrations and workers protection at production sites. The technology of sintering such compounds is implemented by using a miniature press SheR, acting on the shape memory effect. The paper presents the design and technological capabilities of controlling the operation of the working device power drives which are made from the TiNi alloy.
Study of ignition of binding substances used in foundations of tanks
Authors: Lukyanova I E , Mikhailova V A , Kantemiov I F , Yakshibaev I N
Published: November 2019

The reservoirs of tank farms and oil storages are structures of increased fire danger, the accidents in which lead to severe economic, environmental and social consequences.

The article details the cause of tank fires during the repair work. One of the ignition causes is bitumen mastic, used for waterproofing foundations and walls of the tank. Increasing the autoignition temperature makes it possible to increase the fire safety of vertical steel tanks. For this purpose, work was done to add various binders to the bitumen mastic.

The results of calculating the self-ignition temperature of bitumen and limestone mixture, the results of calculating the autoignition temperature of bitumen and pumice mixture, and the results of calculating the autoignition temperature bitumen and sodium salt mixture are presented. As a result of the estimation of the self-ignition temperature of bitumen with additives, the addition of limestone is the optimal way to reduce the fire hazard of waterproofing on the bitumen base of the foundation of vertical steel tanks for oil storage.

To verify the reliability of the autoignition temperature values obtained by calculation, laboratory studies were carried out for a mixture of bitumen and limestone.
Relocation schemes of picks with cutting, coupling and group cuts on shearer cutting drums
Authors: Xuan Nguyen Van , Linh NguenKhac , Gabov VV , Lykov YV
Published: November 2019

The possibilities of increasing the efficiency of separating coal from the massif by improving the pick alignment schemes of shearer cutting drums are considered. Given the existing structural limitations of the radial extension of the picks and the thickness of the cuts, an increase in efficiency is achieved by using combined series-group schemes for arranging picks, including energy-efficient cutting, paired and group with a larger cross-sectional area of the cuts and, therefore, with a larger particle size of the separated coal fragments, reduced dust yield and specific energy consumption.
Determination of rational parameters of auger loaders of «Ural-20R» heading-and-winning machines
Authors: Shishlyannikov D I , Shibanov D A
Published: November 2019

The analysis of factors affecting the intensity of the process of grinding potash ore when loading by the auger body is performed. The main criteria for selection of rational parameters of auger loaders of heading-and-winning machines are indicated. The mathematical formulas are presented, including the design scheme of determining the rational value of the duty ratio of the cross-section of the screw, wherein minimal ore circulation providing in a screw spiral of the auger is developed. It is proved that work of auger loaders at rated performance of «Ural-20P-11/12» machines is accompanied by an increased filling ratio of interlobe space and ore circulation, which causes increase in the number of non-washable powdered classes in the breakage products. The dependence of the change of the rational fill factor and the productivity of the auger body on loading is established and analyzed. The rational value of a hub diameter of the auger loader of the «Ural-20P-11/12» machine in which minimum ore circulation and overgrinding in the spiral channels of the auger are determined by calculation. The technical solutions to improve the design of the augers are proposed.
Parametric optimization of hybrid metalworking machinery quality
Authors: Skeeba V Yu
Published: November 2019

The research considers the problem of quality prognostics in the conceptual design of process equipment. We outline the fundamentals of the methodology for predicting the operational parameters distribution of hybrid metalworking machines. We demonstrate that only joint estimation of the spatial, temporal and energy characteristics of the process equipment facilitates achieving the maximum values of the machines integral quality indicators. The developed method of forming the structure of parameter series is recommended to use not only for creating new integrated equipment, but also for completing a base of metalworking machines using the existing enterprise stock.
Mathematical model of belt conveyor intermediate drive with baffles
Authors: Trufanova I S , Avksentiev S Y
Published: November 2019

In the modern world, in modern circumstances industries require high-speed technologies and fully automation. The best choice to satisfy these requirements is to implement new technologies with progressive features into transportation processes. This article describes the options for increasing traction of the belt conveyor intermediate drive. The functioning principle of the intermediate linear drive with transverse baffles has been described, formulas for calculating the values of traction effort have been provided, also comparative graphs that show the efficiency of using the intermediate drive in various conditions, have been given.
Reduction of vibrations of mechanical and power plant pipelines using vibration insulators with design power characteristics based on guides of a special shape
Authors: Bykov L I , Shammazov A M , Gumerov A G , Tokarev A P , Safiullina A R
Published: November 2019

The article deals with the problem of reduction of the level of pipeline vibrations caused by resonance with disturbing frequencies of pumping units. Each pipeline vibration has to be analyzed since there are no universal methods for reducing pipeline vibrations. For vibration isolation, it is proposed to use vibration isolators on the basis of negative rigidity. The pipeline acts as a stabilizer for a vibration isolator becomes flat which reduces its rigidity and natural frequencies. Analytical calculations were performed to confirm the effectiveness of the solution. A passive vibration absorber based on the elastic element moving along the guides perpendicular to their axis creates power characteristics which are required to protect against vibrations.
Equipment for paraffin removal from oil pipelines in order to ensure energy saving in Arctic conditions
Authors: Gabdrakhmanova K F , Soloviev N N , Izmaylova G R , Kuleshova L S , Marupov S R
Published: November 2019

The paper describes a new method for solving one of the global problems – paraffin rempval from pipelines. The problem is relevant for all oil producing and transporting companies of the Russian Federation and other countries. The method for solving these problems has several advantages, including duration of the overhaul period, high removal efficiency and profitability due to the use of fuel cells. The methodallows for maintaning a constant temperatures equal to the melting point of paraffin.
Investigation of China’s wind power based on cluster analysis and multidimensional scaling methods
Authors: Aliukov S V , Du X , Li S , Sang Y
Published: November 2019

Renewable energy today is the most dynamically developing direction of electric and heat power engineering. China is the undoubted world leader in terms of total volume and annual input of wind power capacities, and also has a developed industrial base, which allows fully meeting the needs of the industry in power equipment. The paper conducts a study of the current state and the identification of trends in the development of China’s wind power in conjunction with the problems of energy security and the potential of new and renewable energy sources as an integral part of regional (provincial) power systems. The place of China in the global use of renewable energy sources of wind has been determined. A comparative statistical analysis of the energy-bearing characteristics corresponding to the Chinese provinces was performed. The research methodology is based on the use of cluster analysis and multidimensional scaling methods. The statistical analysis of China’s wind power allows us to identify and characterize the clusters of the provinces of China, within which the industry will progress further. Methods of multidimensional scaling allow us to visualize the results of the study.
Theoretical investigation of induction heating of a two-layer conducting body by the example of an induction crucible furnace with a conductive crucible
Authors: Fedin M A , Kuvaldin A B , Kuleshov A O , Zhmurko I Y , Kondrashov S S
Published: November 2019

Influence of the reflected electromagnetic wave on the electrical characteristics of an induction crucible furnace with a conductive crucible is considered. The review and comparison of the known methods of calculation of induction crucible furnaces with a conductive crucible have been carried out. A mathematical model of an induction crucible furnace with a ferromagnetic conductive crucible in the ELCUT package was developed. Electrical and power characteristics of the furnace were obtained depending on the frequency, temperature and current of the inductor.
Power industry of future is renewable sources
Authors: Konyuhov V Yu , Gladkih A M , Galyautdinov I I , Kiseleva T Yu
Published: November 2019

The article provides the definitions of “green technology” and “renewable energy”. It describes the areas of impact and application of these technologies and the main types of renewable energy sources in nature. The article shows a strategy for the development of renewable energies in a sample of world economic leaders, including the development of these types and modes of energy generation in Russia. The article concludes that the future use of renewable sources of energy, not only in our country but also on a planetary scale, is appropriate.
Shifting the boiler units of mining enterprises and processing plants to a new scheme of heat supply
Authors: Osintsev K V , Tregubova M V , Kuskarbekova S I , Prikhodko Iu S
Published: November 2019

This article analyzes the current situation in the heating circuit of the boiler room. Nowadays the Taiginsky enterprise proposes to modernize the heat supply system. For the first time, the dual circuit scheme is applied instead of a three circuit scheme. The scheme was developed instead of the existing boiler room scheme. There is also a description of the main equipment of the boiler. A hydraulic calculation was performed and a piezometric graph of the existing and proposed schemes was built. In addition, there is the heat calculation of fire-tube boiler and calculated technological losses during the transfer of heat energy to consumers. The calculation of the main technical and economic indicators is given in the economic part. The protection system of boiler units from mechanical and chemical influences is considered.
The influence of mixed load with complex waveform current supply on the electrical energy quality
Authors: Ptitsyna E V , Kuvaldin A B , Ptitsyn D V
Published: November 2019

The joint work of heating tape and a dark infrared radiator at different electrical modes for getting positive technological and energy effects and indicators of electrical energy quality in the network have been investigated.
Optimization of the boiler using the pinch method and exergy method
Authors: Yushkova E A , Lebedev V A , Yakovlev P V
Published: November 2019

The exergy system is the maximum work that can make the system in the transition to a state of equilibrium with the environment. Exergy analysis of heat power and process plants takes into account not only quantitative but also qualitative characteristics of energy resources in various elements of the plants. The pinch method allows solving specific design problems to optimize the parameters of thermal power facilities. The paper presents an exergy analysis of such an object on the example of a boiler using pinch-method. The results show that to improve the energy efficiency of the boiler can change the surface area of the heating economizer and air heater.
Methods and test equipment of technological information sensors
Authors: Gorozhankin A N , Semenova K D , Nikiforova E A , Savosteenko N V
Published: November 2019

The main aim of research is establishing dependence between a distance from inductive and capacitive technological information sensors to the acting element and imprecision of its operating in track mode. A track mode is understood as the passage of the acting element past the sensor. It is shown that with a decrease in the distance, the sensor imprecision will increase twice. This circumstance should be taken into account while designing automation systems.
Automation of technological preparation of single and small-scale production using simulation modeling
Authors: Khrustaleva I N , Lyubomudrow S A , Tolstoles A A
Published: November 2019

The article describes the model of technological preparation of engineering production. The described model includes three levels: the level of design and analysis of technological processing routes, the applied technological equipment, the level of the methodology for determining the best process option, the level of analysis and control of the production schedule, operational correction of the production schedule to eliminate bottlenecks. Criteria for choosing the best process option and its objective function are described. The practical application of the developed model of technological preparation of production is presented on the example of a ship repair plant. The work was financially supported by the Ministry of Education and Science of the Russian Federation in the framework of the Federal Targeted Program for Research and Development in Priority Areas of Advancement of the Russian Scientific and Technological Complex for 2014-2020 (14.584.21.0022, ID RFMEFI58417X0022).
Conceptual model of radio complex to ensure the safety of underground production mining
Authors: Konstantinov A V , Shpenst V A
Published: November 2019

The paper presents the basic structure of multifunctional security systems for underground mining. It proposes a conceptual model of a telecommunication system, otherwise referred to as a radio complex, for monitoring the environment of a mine, positioning and ensuring the safety of miners. The authors describe a method for timely and reliable data transmission based on mobile robots to prevent emergencies during underground production miing.
Optical inspection of solids of revolution by means of non-telecentric optics
Authors: Kulchitskii A A , Fedorova E R
Published: November 2019

The paper dwells upon automated inspection of solids of revolution on machines. It demonstrates how digital cameras with non-telecentric lenses generate the cross-section image. The paper presents an evaluation of error arising from using projection with non-telecentric (entocentric) optics for inspection. The analysis implies lenses with a focal length of 7, 12, or 25 mm. The obtained analytical dependencies of perspective error are used to adjust the measurements. Simulation confirms that errors can be compensated to values within the calibration error.
Methods of spatial and temporal processing of images in optoelectronic control systems
Authors: Makhov V E , Shaldaev S E
Published: November 2019

The data about the effect of image quality on accuracy of information parameters are presented. Studies on accuracy of measuring characteristics of objects in their images depending on image quality are described. Studies showed that accuracy of measurement algorithms improves with an increase in sample sizes of frames in the optoelectronic system (OES). Image quality is improved by processing the frame samples with algorithms for increasing resolution and reducing noise levels, both in single-point and multi-position OESs based on digital cameras with matrix photodetectors. The maximum effect of an increase in information content of the image and accuracy of measuring algorithms is determined by variations in the pixel structure of each image in the region of brightness gradient boundaries. In the single-point OESs which ensure high quality of optical images without noise factors and variations of other external parameters, the optimal number of frames in the OES is four.
Laser processing systems in machines with numerical control
Authors: Nikolaev A D , Phyo A P , Pompeev K P , Vasilyev O S
Published: November 2019

The paper considers one of the ways to expand the technological capabilities of numerically controlled metal-processing machines, in particular vertical machining centers, by integrating a fiber laser system into their body. The combination of laser and machining technology will complement the traditional processes of milling materials with engraving and microstructuring of material surfaces. The use of a concentrated energy flow - laser radiation - as a working tool will not only reduce the costs associated with the wear of a mechanical contact tool, but also move to fundamentally new microprocessing that is used for various products.
Devices and means of control of underground facilities based on PLC technology
Authors: Tebuev M I , Tebuev T I , Shpenst V A
Published: November 2019

The article presents a solution for data transmission via electrotechnical communication lines, based on the testing of capacitive and inductive connection devices. The article contains information about modern systems for monitoring and control of technological equipment in the mine, for communication, alarm, monitoring and alerts. The principles and features of the Power Line Communications system are described. The relevance of the introduction of PLC technology in the control system of hard structures is described.
Application of the method of fractal dimension in the recognition of defects of the surface layer of bearings
Authors: Vakhidova K L , Khakimov Z L , Isaeva M R , Shukhin V V , Sadykova Z V
Published: November 2019

The problem of recognition of defects in the surface layer of polished raceways of bearing rings according to the fractal dimension of the signals of the eddy current sensor is considered.
Implementation and operation of anti-pressure systems of oil pipelines
Authors: Barkhatov A F , Gumerov A G , Shammazov A M , Fazletdinov R A , Vafin R V
Published: November 2019

The article analyzes the issue of protection of oil pipelines from high-pressure waves arising from pressure pulsation, water impacts during normal or abnormal shutdown of pumping units or an intermediate pumping station caused by the unauthorized closure of valves, etc. Main aspects of implementation of anti-pressure systems (APS) were considered and economic criteria for their installation on existing and projected oil pipelines were determined. An example of calculation of non-stationary processes required to substantiate the expediency of using high-pressure pumps at intermediate oil pumping stations was presented. The main types of system designs, features of their operation and planned maintenance were presented.
Bit measuring systems
Authors: Davydov A Yu , Yakhina I A
Published: November 2019

The article describes the overhead module produced by VNIIGIS-ZTKLLC which solves a number of relevant tasks of horizontal wells construction – accurate determination of the moment of well drilling and operational control of the wellbore trajectory along the most productive reservoir.
Metrological support of geophysical equipment for acoustic logging
Authors: Gilmanova A M
Published: November 2019

The system of metrological support of geophysical well surveys (GWS) is a system of technical and methodological tools ensuring unity, reliability and accuracy of measurement results. For acoustic logging devices, physical standards with highly stable properties were developed and implemented. They are based on simulation of attenuation and time delay of elastic waves propagating in casing pipes. The design of a calibration device for acoustic video logging equipment made it possible to increase research reliability. The design of a field calibration device allowed for rapid calibration of acoustic equipment in field conditions for improving the GWS quality.
Calculation of the oil production rate by an average diameter of the bubbles when sampling in the coil
Authors: Ikhsanova F A , Soloviev N N , Gallyamov I I , Fatkullin A A , Nosirov D Sh , Abdulmanov A A
Published: November 2019

Well abandonment is significant under the enormous number of oil deposits with a wide range of reservoir parameters and physicochemical fluid properties. Underground gas storages are a combination of different objects with long life cycles under multicomponent and multifactor uncertainties of external and internal operational, natural and man-made impacts. Therefore, it is difficult to predict the resource of safe and reliable operation of these wells. Functional safety, system reliability and environmental acceptability depend on their abandonment. The article aims to determine numerical characteristics of the diameter of gas bubbles and well production rates based on the nornal distribution law.
The loading of the low-sided car bodies when restoring coal flowability by thermal means
Authors: Antipin D Y , Bulychev M A
Published: November 2019

Methods for restoring coal flowability are considered and some of them are accentuated. The results of the analysis of load-carrying structures of low-sided cars when exposed to thermal methods of restoring coal flowability are presented. The study was conducted using the industrial FEM software complex. The assessment was carried out for two typical low-sided car structures - with a solid floor and hatches on the frame. Studies have shown that thermal loading significantly affects the low-sided car supporting structures and should be taken into consideration when designing cars of enhanced performance properties. The main low-sided car design feature, considered in the paper, is the presence or absence of load-bearing flooring with longitudinal reinforcements. The presence of a carrier floor in the body reduces the load level of the lower trim in its average section. When comparing the loading of both types of bodies, it can be seen that the backward body of the low-sided car perceives loads, both power and thermal, better. According to the results of the calculations, it is possible to say about the priority of the use of infrared irradiation, as a scheme for restoring the flowability by the criterion of minimizing the thermal loading of the supporting systems of the low-sided cars.
Landslides and mudflows in the Chechen Republic: synergetic aspects
Authors: Daukaev A A , Dadashev R Kh , Gakaev R A , Gatsaeva L S
Published: November 2019

Currently, a synergistic approach is often used in various fields of knowledge to study various phenomena and processes. The paper evaluates a synergy of various factors in exogenous processes in a particular territory. Exogenous phenomena are identified to encompass geological processes that occur on the earth, in its uppermost layers. They either simplify or complicate the underlying relief. Synergism in exogenous processes can consist in simultaneous occurrence of landslides, mudflows and floods in appropriate conditions. The studies, to a certain extent, indicated the synergy in the behavior of the above mentioned phenomena. The research hypothesis implies the adaptation of the synergistic approach to the study of exogenous processes.
Design features for Arctic ports berths for accepting the ships with a deep draft
Authors: Garibin P , Ol’khovik E
Published: November 2019

Construction of new Arctic ports is a complex scientific and technical challenge. The experience extends to the berths that can accept the vessels with a small draft only during the summer navigation period. Commercial efficiency of shipping in the Arctic seas is possible only with year-round use of large-tonnage vessels of high ice class with a draft of 12 meters or more. The Arctic seas basin is mostly shallow, and the main transport task is the regular export of liquid natural gas and crude oil by shuttle ships. We analyze a currently used berth structures and their operational features. It has been revealed that the berths of the overpass type on piles of shells with a concrete grillage require additional ice protection structures in the port water area, since power loads from the vessel mooring and ice may be critical. The infrastructure of the modern marine port in the Arctic should combine with production and logistics capabilities, since the internal transportation of goods is labor intensive. A mooring structure from the arrays of concrete gravity caisson wharf is proposed, which can be quickly constructed and they can accommodate additional equipment for transporting or transferring cargo. The studies are performed at the Department of Hydraulic Port Construction in Admiral Makarov State University of Maritime and Inland Shipping.
A potential application of in-pit crushing-conveying and dewatering system in peat mining
Authors: Mikhailov A V , Garmaev O Z , Garifullin D R , Kazakov YA
Published: November 2019

The purpose of this paper is to analyse the application of fully mobile plants for raw peat crushing, mixing and separating of wood inclusions and for mechanical dewatering in peat open-pit mines to increase the efficiency of mining. In-Pit Crushing and Conveying Systems (IPCC) which characterized by their economic efficiency, reduction of labour costs, haulage costs, fuel consumption and pollution (dust and noise) compared to conventional shovel-truck systems are well known. Full mobile In-Pit Crushing-Conveying and Dewatering System includes an excavator, two mobile plants: crushing and dewatering plants. The considered technology of primary processing of excavated raw peat has the following advantages: reducing trucks fleet; reducing transportation costs; an opportunity of continuous processing of peat; reducing the energy consumption of the crushers; eliminating the need to build water treatment plants in factories due to returning squeezed water back to the pit.
Opening-up of mine reserves in combined development of marble deposit
Authors: Kaderov M Yu , Kosolapov A I
Published: November 2019

The article describes the opening-up methods in the combined development of facing stone deposits. It describes the indicators affecting the application of a certain opening method and features of this process in the conditions of the mine “Doverie” with different ratios of production capacity for open and underground mining.
Improving the quality of navigation and hydrographic support in the Arctic rivers estuarine waterways
Authors: Karetnikov V V , Prokhorenkov A A , Efimov K I
Published: November 2019

On the rivers of the Arctic region common navigation conditions are characterized by quickly changing water levels, a wide riverbed with narrow and embayed fairways, numerous point and spatial navigation hazards. Spatial navigational hazards represent dangerous isobaths of irregular geometric shape which do not follow the bank configuration. For reliable visual positioning of the vessel during passage floating marks are widely used. For the winter period floating marks are removed as not designed for use in ice conditions. The most difficult periods for navigation thus come when floating marks are being removed from their adopted positions or being put back. Difficult weather and navigational conditions in conjunction with absence of floating marks increase effect of random component on accuracy of positioning and maneuvering of vessels. Normally safety of the vessels in narrows is assessed by the methods of systems theory. It uses mathematical models of the movement of vessels, which takes into account the totality of all hydrodynamic and mechanical forces acting on the vessel. Intension to support navigational safety during period when floating marks are partially removed makes it important to take into account the stochastic nature of many factors affecting the efficiency of solving navigation tasks. By means of the situational approach based on the methods of mathematical statistics it possible to estimate the levels of navigation safety in congested sea areas, on inland waterways, when designing sea channels, approach routes to ports, etc.
Analysis of seismic safety assessment procedures for joint development of coal deposits
Authors: Kurta I V
Published: November 2019

The safety of mining and exploitation operations is an important factor that allows accident-free mining of mineral raw materials. To achieve this goal, the companies take various measures to reduce hazardous factors, which include blasting and distribution of seismic explosion waves as the phenomenon under consideration. The initial calculation for the reduction of hazardous factors is based on a specially designed procedure. Currently, there are no approved standard methods that could relate to impact of seismic explosion waves on the mounting of mine openings. Various researchers have developed procedures that have certain advantages and disadvantages. This paper presents the methods to assess seismic explosion impact during joint development of coal deposits, which are commonly applied in Russia. It shows the analysis of proposed methods and directions for further improvement of calculations of safe parameters of seismic explosion waves to mine openings.
The flow test and the skin-effect determination for oil wells according to pressure build up
Authors: Zaboeva M I , Levitina E E , Kovalev I A
Published: November 2019

Such parameters as the flow test and the skin-effect determination with the application of data of the pressure build up when carrying out hydrodynamic research are considered in the paper. The necessity to increase the determination accuracy of layer parameters according to well flow test is a highly topical issue for many oil companies. Therefore ranges of values of calculated parameters and the state of a bottom hole part of the layer corresponding to them are presented in the paper.
Increasing the coarse coal fractions yield during coal mining using shearer cutting drums
Authors: Xuan Nguyen Van , Linh Nguyen Khac , Lykov Y V
Published: November 2019

The paper analyzes the factors affecting the particle size distribution of the extracted coal mass by shearers, and considers ways to increase the content of coarse fractions. The search for methods and technical solutions is coupled with the idea of increasing the cross-sectional area of the cuts by the choice of their rational forms, which makes it necessary to improve the arrangement of cutters on the executive bodies.
Innovative technologies for developing professional capabilities of mining production specialists
Authors: Saigushev N Y , Vedeneeva O A , Melekhova Yu B
Published: November 2019

The advanced training of mining production specialists is largely influenced by the development of motivation towards this process. Motivation is developed with the use of various forms and methods whereupon not only the employment period of mining production specialists but also their professional interests and needs are considered.
Results processing of hydrodynamic studies of wells of the Bazhenovskaya suite
Authors: Sarancha A V
Published: November 2019

The main purpose of writing the given article is to highlight the results of hydrodynamic studies of wells drilled in the Bazhenovskaya suite of one of the oil fields located in the Tyumen Region of the Russian Federation. At the mentioned field, studies of the technology of thermal gas exposure on source rocks were carried out. That was the first experience of applying thermal gas exposure to the source rocks of the Bazhenovskaya suite, which was of great interest to specialists from research and design institutes engaged in the design and development of oil and gas fields.
Substantiation of equipment complexes for the development of brown coal deposits in the mode of coal quality management
Authors: Snetkov D S , Kosolapov A I
Published: November 2019

The choice of equipment complexes, development technology is a task influencing the technical, economic, environmental, social and other indicators of the mining enterprise. The world known companies having long traditions in the production of mining construction machines and excavators are flexible companies that easily adjust to constantly changing market, this is the equipment that can be used in the current situation. The interrelation of the equipment complex parameters with the production capacity of the open pit is since the productivity of the first must be a multiple of the second value, and the costs for all types of mining and investment are minimal with the selected technological complex variant. The article studies the influence of the mine production and the bucket capacity of a hydraulic excavator (for which the corresponding variant of the technological complex was formed) on the technical and economic indicators of the mine operation for the conditions of a valid research object.
Primary dehydration of peat on floating mining platforms
Authors: Vagapova E A , Khudyakova I N , Fadeev D V
Published: November 2019

The use of peat as a local type of fuel is advisable for many remote areas of our country. Improving the efficiency of peat resources makes it possible to ensure energy security of the country and reduce emissions to the atmosphere, as compared to the use of hydrocarbon energy sources. Autonomous floating platforms utilized for peat extraction and further treatment call for a scientifically sound selection of their parameters, which is specified by the equipment and dehydration technology applicable for the extracted raw peat materials. A study of filtration properties and chemical composition of impurities in aqueous solutions or peat pulps enables a rational approach to water separation and improvement through a short-term magnetic exposure. The identified outputs form the cornerstone of innovative technologies for primary peat dehydration.
Development of industrial environmental control methods
Authors: Volkodaeva M V , Taranina O A , Volodina Ya A , Kuznetsov V A
Published: November 2019

The industrial environmental control includes monitoring of specific air contaminants typical of a particular industry. Determination of the pollutant levels at the border of the sanitary protection zone consists of the preliminary sampling and subsequent analysis in a specialized laboratory. The article discusses various methods of sampling for a group of volatile organic compounds (using sample bags) and polyaromatic hydrocarbons (using a sorption tube and a filter to collect solid particles), depending on their physicochemical properties and the characteristics of distribution.
Principal component analysis for assessing oil and gas production (the case of the Kogalym field)
Authors: Igtisamova G R , Soloviev N N , Ikhsanova F A , Nosirov D Sh , Abdulmanov A A
Published: November 2019

When analysing the criteria measuring the volume of oil deposits with wide gaps in configuration of reservoir parameters and physicochemical properties of fluid, it is necessary to group and characterize objects under study. Classification makes it possible to adjust conformity and distinctive features of deposits, and explain research theories. The analysis of information according to the subjects determined by the parameters measured or evaluated is difficult to carry out. It requires a lot of time and effort. Therefore, it is necessary to reduce the data volume, compress initial information to the smallest number of characteristics. Parameters can be selected from initial data or calculated and modified (i.e. minimum loss of data on the objects under study). The effective analysis tool capable of identifying the problems is the principal component analysis (PCA) which is a method for reducing the data volume. The principal component can be found in almost every text using the multivariate analysis.
Prospects for the use of new technologies in assessing the impact of geological and technological risks
Authors: Nurgaliev R Z , Kozikhin R A , Fattakhov I G , Kuleshova L S , Gabbasov A Kh
Published: November 2019

Nowadays, operator companies pay much attention to the introduction and development of technologies for development of oil fields using horizontal wells. This situation is due on the one hand to relatively greater efficiency of operation on horizontal wells, as compared with vertical, and problems typical for horizontal wells (low share of 10-30 % of the “working” part of the horizontal well, specificity of the influence of heterogeneity of the reservoir during stimulations, difficulty and water source control on the other hand. In addition, it is necessary to take into account a number of factors causing the exclusive use of horizontal wells: a restriction on the location of the wellhead relative to the target areas of the reservoir, a restriction on the number of wells, the development of fields with highly viscous and super-viscous oils, and the operation of unconventional (dense) reservoirs. The main objective of this work is to determine the prospects for the application of new technologies to increase the efficiency of operation of horizontal wells. It is impossible to describe the full picture without reflecting the results of the analysis of the performance of horizontal wells in field development, the problems of planning investments for drilling horizontal wells, as well as considering aspects of the economic evaluation of the use of technologies designed to improve the efficiency of horizontal wells. Much attention is paid to identifying the causes of declining oil production due to premature irrigation of horizontal wells. Various options for the occurrence of flow heterogeneity and their influence on the development of reservoirs using horizontal wells are considered.
Results of system drilling techniques and completion of oil and gas wells
Authors: Polyakov V N , Chizhov A P , Kotenev Yu A , Mukhametshin V Sh
Published: November 2019

The article presents results of the improved technology for drilling and completion of oil and gas wells (Multi-technology Complex). The results are based on synchronization and consistency of thermodynamic processes of well bore strengthening and implementing system approaches and solutions. The authors discuss brief analytical generalizations on the quality and efficiency of well lining, factors that violate the well lining technology, and related problems. In addition, disadvantages of traditional technologies and the reason for their low efficiency in the construction of wells are mentioned. The authors give analytical generalizations of the results of well construction with the use of the Multi-technology Complex in various mining and engineering conditions of Russian fields. The method’s advantages over traditional methods are noted. There are no occurrences of various complications in a well construction: fountains, emissions, gas-oil-water manifestations, absorption, instability and hydraulic fracturing of rocks. Furthermore, the complex allows improve well and filter structures reducing the metal intensity of the structure and the time frame.