bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of strong refractive effect within 11Li projectile structure
Authors: Behairy Kassem O. , El-Azab Farid M. , Ibraheem Awad A. , Ramadan Ola , Anwar M. 
Published: November 2020

Abstract
In the context of the double folding optical model, the strong refractive effect for elastic scattering of 11Li + 12C and 11Li + 28Si systems at incident energies of 29, 50, and 60 MeV/n is studied. Real folded potentials are generated based on a variety of nucleon-nucleon interactions with the suggested density distributions for the halo structure of 11Li nuclei. The rearrangement term (RT) of the extended realistic density dependent CDM3Y6 effective interaction is considered. The imaginary potential was taken in the traditional standard Woods-Saxon form. Satisfactory results for the calculated potentials are obtained, with a slight effect of the RT in CDM3Y6 potential. Successful reproduction with a normalization factor close to one for the observed angular distributions of the elastic scattering differential cross section has been achieved using the derived potentials. The obtained reaction cross-section is studied as a guide by extrapolating our calculations and previous results.
Neutron star cooling and GW170817 constraint within quark-meson coupling models *
Authors: Lourenço Odilon , Lenzi César H. , Dutra Mariana , Frederico Tobias , Bhuyan M. , Negreiros Rodrigo , Flores César V. , Grams Guilherme , Menezes Débora P. 
Published: November 2020

Abstract
In the present work, we used five different versions of the quark-meson coupling (QMC) model to compute astrophysical quantities related to the GW170817 event and the neutron star cooling process. Two of the models are based on the original bag potential structure and three versions consider a harmonic oscillator potential to confine quarks. The bag-like models also incorporate the pasta phase used to describe the inner crust of neutron stars. With a simple method studied in the present work, we show that the pasta phase does not play a significant role. Moreover, the QMC model that satisfies the GW170817 constraints with the lowest slope of the symmetry energy exhibits a cooling profile compatible with observational data.
Non-stationary mass transfer of oil-water mixture in reservoirs with a system of horizontal wells
Authors: Zhizhimontov I N , Zemenkov Yu D , Shabarov A B 
Published: November 2020

Abstract
The paper presents a physical and mathematical model of quasi-three-dimensional non-stationary filtration of a water-oil mixture in a system of horizontal wells and the corresponding numerical calculation method. Based on them, a computer program was created, designed to solve a number of scientific and production problems. The developed model and program are aimed at theoretical and numerical study of the processes of mass transfer of the oil-water mixture in the field of analysis, maintenance and development of natural formations with high-viscosity oil deposits. The results of numerical experiments for calculating the two-phase flow of an incompressible fluid in a reservoir are given as an example of a real field, located in the north of Western Siberia. The paper proposes an approach to discretization of the computational domain, based on the construction of a dynamic computational grid in a natural semi-fixed coordinate system. For the first time, the problem of calculating two-phase mass transfer using a semi-fixed natural grid and an analytical expression for the flow rates of phases in current streams of a found shape has been solved. Based on the proposed model, calculation and parametric studies of various modes of field development with a system of parallel horizontal wells were performed.
Complex thermophysical modeling of processes in the foundation soil of oil pipelines in the Arctic and offshore conditions
Authors: Golik V V , Zemenkov Yu D , Shagbanov I F 
Published: November 2020

Abstract
The paper presents the results describing the mathematical model in operation and testing methodology aimed at heat engineering calculations needed to do for multilayer oil pipelines. A section of the pipeline running under difficult geological conditions is under simulation. The methodology aimed at calculating the thermal processes and its results are described. The simulation was carried out by using some insulating materials with a constant internal diameter of the pipeline and a pumping mode. The simulation was carried out with the universal software system of end-element modeling – ANSYS and with a module developed by the authors for TPS thermotechnical calculations.
Studying quality of diagnosing rolling stock at service enterprises of automobile transport
Authors: Krasovsky V N , Krasovskaya N I , Sycheva A V 
Published: November 2020

Abstract
The article focuses on one of the car service market components being a car diagnostic system and, in particular, on the effectiveness of the activities of diagnostic operators. The objective of this study was an experimental assessment of the effectiveness of the proposed methods for improving the training of diagnostic operators. The results of testing hypotheses on the correct diagnosis by a group of specialists on the technical condition of passenger car engines are presented.
A comprehensive analysis of the properties of reservoir rocks to determine the productive oil horizons
Authors: Klyuev R V , Bosikov I I , Revazov V Ch , Krysanov K S , Dzeranov B V 
Published: November 2020

Abstract
The purpose of the research is to study the reservoir and filtration properties of reservoir rocks of the Aptian horizon of formation No. 1 within the Kovylnoye field. The initial data were reservoir-filtration and geological-geophysical parameters within the exposed rocks of the reservoirs of the Aptian horizon of formation No. 1, for wells No. 1 and No. 2, which were drilled at the search and evaluation stage of work: porosity coefficient, permeability coefficient, rock resistivity, oil-saturated thickness. High values of effective porosity, permeability, and oil and gas saturation are found in biomorphic, organogenic, and clastic carbonate rocks where the void space has not been subjected to secondary changes (salt deposits), resulting in reservoirs characterized by low capacitance and filtration properties. Analysis of carbonate reservoirs gives values of permeability up to 0.3-1 mm2 and porosity of 20-35 %. Rocks are lumpy, loose, weakly cemented with cement content up to 10%. Their initial water saturation in the oil deposit does not exceed 5-20 %. The research has shown the effectiveness of conducting a comprehensive analysis of reservoir rock properties to determine the oil and gas content of the site.
Main aspects of the oil industry within the sustainable development concept
Authors: Fomenko N , Mohammed Jasim Hamad Al Mashkhadani 
Published: November 2020

Abstract
The main aspects of the industry development within the concept of sustainable development are considered in the article by the example of the oil industry. Sustainable development means the collaboration of three principal components, including ecology, society, economy. According to the carried-out analysis, the field of application and the stages of development of this concept are pointed out. The authors defined the economic, social, technology, ecological and political factors, influencing the development of the oil and gas industry. Thus, the application of the sustainable development concept in the oil industry will allow supporting the balance between the economy and the environment without causing damage to the environment, keeping resource base and providing stable improvement of quality of the population life.
Issues of ensuring the design durability of reinforced concrete supports of the main pipelines of oil refineries
Authors: Fedorov P A , Abdullin M M , Fatykhova A M , Fattakhov M M 
Published: November 2020

Abstract
The aggressive environment of oil refineries contributes to increased corrosion of reinforced concrete supports of trunk pipelines. This is primarily due to the increased concentration of acid gases. The article presents results of the analysis of the gas-air environment of an oil refinery and its impact on primary support measures. It was established that when using typical reinforced concrete supports made from B15 W2 concrete, the protective layer with a thickness of 15 mm becomes neutralized 3-6 years after the operation. To ensure continuous 25-year operation, it is necessary to increase thickness of the protective layer to 35 mm. To increase the durability of the structure, it is proposed to replace steel reinforcement with “metal-fiberglass” or hybrid fiberglass one.
Temporary and operational transport roads in construction of transfer linear structures and their scientific and technical support
Authors: Kortiev L I , Klyuev R V , Totchiev F G , Vaneev S D , Babunska N I 
Published: November 2020

Abstract
Due to the economic and technical progress of countries and regions in Europe, the necessary and possible transport communications, power lines (power lines), various pipelines and other linear structures were laid through the Alpine Mountains. The Caucasian Mountains in this part are strongly lagging behind. The railway crosses the Main Caucasian Ridge (MCR) only in the western part up to the Black Sea coast, and the automobile road is in the Central part through the Cross Pass along the Georgian Military Highway and the Roksky Pass along the Military Ossetian Road. The Gas pipelines and power lines were laid in the same areas. At the beginning of the 11th century, the Dzuarikau - Tskhinval pipeline was laid to provide gas to the population of South Ossetia. In the peak position this gas pipeline is the highest one on a global scale being of a particular organizational interest. Of the same interest is the construction of a road through the Roksky Pass, hereinafter referred to as Transkam. Organizationally, these two linear structures had to be laid on the automobile road as a temporary one and a technologically advanced soil and gravel road on the gas pipeline at an absolute height of more than 3,000 meters. These roads have important social, economic, agricultural and strategic importance which is considered in this article.
Modern technologies of project management and implementation in the construction industry
Authors: Ermakov A A , Korkishko A N , Smirnov S A , Shapovalov A S 
Published: November 2020

Abstract
The article considers the technology of management and implementation of project activities, from the perspective of project management in the field of innovation and multifunctionality of work in the field of construction and production. The current existing approaches to project management in various manufacturing fields and also such special tools as the construction extension of project management standards have been examined. As follows from the analysis, the main features of the considered standards are highlighted and conclusions were reached on the necessity to use modern technologies in project management.
Analysis of the development of global energy production and consumption by fuel type in various regions of the world
Authors: Shalaeva D S , Kukartseva O I , Tynchenko V S , Kukartsev V V , Aponasenko S V , Stepanova E V 
Published: November 2020

Abstract
This article is devoted to the analysis of the geographical structure of the world energy industry. The article analyzes trends in global energy production and consumption from 1990 to 2018. Statistical indicators of energy production and consumption are also considered. The study notes that the leading countries in GNP production are the largest energy consumers in the world. The authors consider the issues of distribution of production and consumption of energy resources across the world, changes in the relationship between the leaders in primary energy production and energy consumption. Electricity consumption and production by regions of the world are considered, and the share of global energy intensity of energy by fuel type is determined. In addition, the article analyzes the world consumption of natural gas and coal, as well as its extraction. Changes in world demand for petroleum products and their consumption are considered.
Limiting state of plate with hole
Authors: Kazarinov Yu I 
Published: November 2020

Abstract
The problem of determining the limit state of a plate with hole is considered. Solutions of two other problems are proposed to solve this problem, namely, determination of stress intensity factor in elements of structure with cracks and calculation of stress-strain state of a plate of finite width with hole. The first objective is based on the fracture mechanics positions for the crack plate using the software complex KOMPAS-3D (3D design system). And the second objective is based on the theoretical method of elasticity theory, applied to a plate of finite width with hole. Obtained results of both objectives were compared with known solutions.
Application of PCIU for protection of emergency pipelines against corrosion
Authors: Saveleva N N , Salyakhova A R , Koretskiy K E , Koretskiy P E 
Published: November 2020

Abstract
The field pipelines at the Samotlor field are the main means of oil and gas transportation. Corrosion causes premature wear of pipes and piping equipment and can cause breakdowns. To prevent emergencies, it is necessary to carry out repair and technical work timely, using chemical dosing units. To protect the field pipelines at the Samotlor field, stationary reagent dosing units are used. All of them are installed at well pads, closer to automated group metering units. They have a number of significant disadvantages: difficulty in installing; difficulty of the repair work; impossibility to remotely control the process of pumping a chemical reagent in real time; long idle time; outdated security system. A modern solution to the listed above problems for the oil and gas industry is the use of portable chemical injection units (PCIU). A PCIU is a state-of-the-art trailer-based system, and it can also be installed permanently on a well pad. The advantage of this installation is its high mobility, ease of installing, minimal installation and maintenance costs, the ability to automate.
Improvement of pin flexible coupling construction
Authors: Saveleva N N , Savelev Y V 
Published: November 2020

Abstract
The purpose of the study is to increase the service life of coupling joints of centrifugal pumping units by designing a modernized coupling joint. During the operation of centrifugal units, there is a problem associated with a short service life of the couplings due to the imbalance of the half couplings, improper balancing of the rotor, etc. The authors conducted an objective and comprehensive analysis of the flexible coupling operation. Based on the results of the study of the existing construction, the coupling joint was modernized using the example of the pin flexible coupling for a centrifugal pump 200D90. The flexible coupling construction, which has no analogues in Russia, has been created. Due to the proposed upgraded construction, the coupling provides increased service life and more reliable operability in service.
Methods for illegal tapping detection using non-destructive testing tools
Authors: Salyakhova A R , Koretskiy K E , Koretskiy P E 
Published: November 2020

Abstract
The article discusses the statistics of accidents occurred as a result of illegal tapping or sabotage at the sections of the main oil pipeline. The authors analyzed existing methods for determining illegal tapping, revealed the need to develop such an advanced method for detecting tapping, which would combine several predominantly promising properties for the oil and gas industry. One of the main conditions for the development prospects is the environmental and economic feasibility of the development introduction. Significant advantages of the impulse reflectometry method are established, which consists in oil pipeline sounding, presented in the form of a two-wire electric line and detecting the wave resistance deviation at heterogeneous sections of oil pipeline. Various defects can present such deviations in comparison with the already existing control methods, which mainly depend on human factor during patrolling along the main oil pipelines.
Results of the experimental study of the fatigue characteristics of the repaired welded joint of the marine stationary oil and gas producing platform
Authors: Teodoriu C , Starokon I V , Guseynov Ch S 
Published: November 2020

Abstract
Offshore stationary platforms are actively exploited in the world. The lifespan of some of these platforms exceeds 20 years. Such a significant period of operation leads to the fact that the platforms are exposed to various loads for a long time, causing alternating stresses and, as a result, fatigue damage, including fatigue cracks in welded joints and the base metal of the platform. When fatigue cracks are identified, defect joints are repaired commonly using welding techniques. However, the duration of the subsequent operation of such repaired welded joints is not currently known. The authors conducted an extensive experimental study to understand the life span of welding repair technologies. This approach was for the first time used to repair the welded joint of a platform located in the White Tiger. White Tiger is the Vietnamese offshore oil field, located 200 km east of Ho Chi Minh City on the shelf of the South China Sea. The result of this study was the fatigue diagram and its equation, which were first obtained by the authors.
Experience in using the Russian LWD complex for well drilling
Authors: Davydov A Y , Yakhina I A 
Published: November 2020

Abstract
The experience of using the LWD production complex of Research and Production Company VNIIGIS-ZTK LLC, which allows you to track the lithology and thickness of the layers in the direction of drilling, to predict the point of entry into the reservoir, to conduct the well on the most productive part of the reservoir, is considered.
Intensification of the gas inflow when bringing wells into production
Authors: Dubinskiy G S , Andreev V E , Kuleshova L S , Mukhametshin V V 
Published: November 2020

Abstract
In wells brought into production, the bottomhole formation zone is contaminated. Contamination must be eliminated by acid treatment. The degree of contamination depends on reservoir characteristics and technological parameters of the primary and secondary opening. The intervals of formation permeability were identified; additional measures aimed at cleaning the reservoir from contamination and restoring well productivity should be implemented. Multi-solution acid treatment of the bottomhole formation zone improves productive characteristics of wells with deteriorated properties of the bottomhole reservoir.
Wave thermal flooding when designing high-viscosity oil reservoirs
Authors: Dubinskiy G S , Andreev V E , Mukhametshin V V , Kuleshova L S , Mingulov I Sh 
Published: November 2020

Abstract
The article describes an environmentally friendly and energy-saving method for increasing the volume of oil recovery - thermal flooding of a high-viscosity oil reservoir integrated with wave actions in injection wells. Heating of a remote formation zone to the effective temperature and wave impacts improve the conditions for effective oil displacement. The integrated use of associated gas and waste water from the oil treatment plant increases the energy efficiency and improves the environmental friendliness of small high-viscosity oil fields. For geological and physical conditions of high-viscosity oil deposits, it is recommended to employ the method of wave thermal flooding.
Stress corrosion cracking in pipelines
Authors: Gumerov A K , Khasanova A R 
Published: November 2020

Abstract
Stress corrosion is viewed as cracking of a pipe metal in cathodic protection regions of gas transmission pipelines, which are simultaneously affected by various unrelated, at first glance, factors. Stress corrosion is otherwise referred to as stress corrosion cracking or SCC. Stress corrosion cracking of pipelines is the main cause of emergencies in gas transmission pipelines. Currently, this type of corrosion is widespread and very dangerous. The reliability and safety of modern pipelines is of great national importance. Despite being significant, multiple efforts to address this problem have not yet identified the causes and algorithms for handling stress corrosion.
Set of measures to prevent liner sticking during directional drilling
Authors: Guseynova E L , Guseynov E M 
Published: November 2020

Abstract
The study considers the sticking problems of drilling. The study presents the classification and gives a general characteristic of liners. It is shown that the largest number of troubles occurs due to differential sticking. Differential sticking and methods of its elimination are considered in detail. The set of measures to prevent sticking, including the use of the Rhino XC Tool borehole expander, filters with plugs, dry lubrication, eccentric shoe, is developed and proposed.
Non-conventional methods for oil production in the conditions of the Abdrakhmanovskaya site of the Romashkino oil field
Authors: Gutorov A Yu 
Published: November 2020

Abstract
The paper analyzes the existing non-conventional methods for oil production in the conditions of the Abdrakhmanovskaya site of the Romashkino oil field. It describes the methods for well stimulation by swabbing in tubing strings (TS) and production casing (PC). A number of non-conventional production methods are compared to identify the most innovative. Some technical approaches are outlined once used in specific conditions to effectively deploy the operating well stock. The prospects for their use are evaluated.
Development of microcalcite-based drilling fluid
Authors: Ismakov R A , Dikhtyar T D , Yangirov F N 
Published: November 2020

Abstract
One of the most common hindrances to encounter during the construction of oil and gas wells is lost returns. The methods to select prevention and control measures are based on quantitative criteria that reflect the hydrodynamic capacity and geological structure of the strata. One of the ways to prevent this hindrance during the construction of oil and gas wells is pore-plugging – a sophisticated physicomechanical process to reduce the permeability of a reservoir formation, which takes place over time due to mud filtrates, dispersed particles or specially introduced fillers (plugging additives). For this reason, it seems relevant to use domestic microcalcite, as a component of drilling fluids, from the Minyar field. The paper aims to assess the effect of various microcalcite concentrations on the properties of drilling fluids and to assess as to whether this type of material is effective enough for pore-plugging under the specified drilling conditions.
Thermal acid impulse method for enhanced oil recovery
Authors: Khabibullin M Ya , Soloviev N N , Safiullina A R , Karimova A A 
Published: November 2020

Abstract
The injection rate created by the equipment does not provide uniform heating of the acid solution with thermo-acid samples. The first portion of the solution overheats, and the subsequent ones turn out to be underheated. Therefore, the effectiveness of acid and thermo-acid treatment of highly drained wells with low reservoir pressure is rather low. To increase the efficiency, a method of acid and thermo-acid impulses was proposed, a methodology for its application was developed, and simple designs of the necessary underground and ground equipment for wells were developed (tip reactors and a universal wellhead). If in a well intended for thermoacid treatment by pulsation the filter or some part of it turned out to be blocked by a sand plug, then they were preliminarily cleaned with a bailer without opening the sump. Thermo-acidic (as well as acidic) well treatment by pulsation is carried out without the use of a pumping unit, which can significantly reduce costs. Thus, the most suitable acidic solution for thermoacid pulsation is 15% HCl inhibited by unicol.