CONTENTS of journal "THNP" 3•2020
COVER THEME - 45 years of the Faculty of Pipeleine Transport
GANIEVA I.I., MINGAZEVA K.A. THE FACULTY OF PIPELINE TRANSPORT OF THE USPTU IS 45 YEARS OLD (P. 5-6)
A TALENTED SCIENTIST AND A TEACHER (P. 7-11)
Shammazov1 Ayrat M., Korshak2 Aleksey A., Sultanmagomedov1 Sultanmagomed M.,
1Ufa State Petroleum Technological University,
450062, Ufa, Russia
E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0001-6111-1319, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
2Scientific and Technical Center «Transneft Research Institute» LLC, 450055, Ufa, Russia
E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ABSTRACT
On October 28, 2020, the prominent scientist Pavel Ivanovich Tugunov, who made a significant contribution to the development of the pipeline transport industry, would have been 90 years old. The article discusses the significant contribution of Chugunov P. I., which he made for the development of the industry of pipeline transportation as a scientist and a teacher. As a scientist, he was a major specialist in the field of "hot" pumping, sequential pumping of different-grade oil and petroleum products through a single pipeline, pumping oil with dissolved gas, protecting pipelines and reservoirs from corrosion, to name a few. He has trained five doctors and more than 20 candidates of technical sciences. As a vice-rector at scientific work, he contributed to the establishment of postgraduate studies and research at the Ufa Petroleum Institute. Having headed the Department of Hydraulics and Hydraulic Machines, Tugunov P. I. formed a well-coordinated team capable of solving a wide variety of educational and scientific tasks. This is evidenced by the results of industrial tests, numerous defenses of candidate and doctoral dissertations. Chugunov’s work is continued by his disciples.
KEYWORDS: Pavel Ivanovich Tugunov, 90 years since his birth, contribution to science, Department of Hydraulics and Hydraulic Machines, disciples, Faculty of Pipeline Transport.
For citation: Shammazov A.M., Sultanmagomedov S.M., Korshak A.A. A TALENTED SCIENTIST AND A TEACHER. Transport and Storage of Oil Products and Hydrocarbons. 2020, no. 3, pp. 7-11.
DOI:10.24411/0131-4270-2020-10302
THE HISTORY OF FORMATION AND DEVELOPMENT OF THE USPTU FACULTY OF PIPELINE TRANSPORT (P. 12-17)
Shamilov Khiramagomed SH.,
Ufa State Petroleum Technological University,
450062, Ufa, Russia
ORCID: https://orcid.org/0000-0001-8190-6389, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ABSTRACT
This year, one of the largest divisions of the Ufa State Petroleum Technical University (USPTU), the Faculty of Pipeline Transport (FPT) is going to be 45 years old. However, if we look at the emblem of the faculty, it proudly flaunts the inscription "1952". What's the matter? The answer to this question you will learn from this article. We invite you to delve into the history of the faculty. After it, having learned the origins, we will see how the faculty lives today.
KEYWORDS: faculty of Pipeline Transport, anniversary, history of the Faculty of Pipeline Transport, two stages of creation, education in the field of pipeline transport.
For citation: Shamilov KH.SH. THE HISTORY OF FORMATION AND DEVELOPMENT OF THE USPTU FACULTY OF PIPELINE TRANSPORT. Transport and Storage of Oil Products and Hydrocarbons. 2020, no. 3, pp. 12-17.
DOI:10.24411/0131-4270-2020-10303
DESIGN, CONSTRUCTION AND OPERATION OF GAS AND OIL PIPELINES AND STORAGES
THE APPLICATION OF FERROMAGNETIC ADDITIVES TO INCREASE HYDRAULIC EFFICIENCY OF OIL PRODUCT PIPELINES (P. 18-21)
Sagadeeva1 Adelina D., Valeev1 Anvar R., Tashbulatov1 Radmir R., Yang2 Chen.,
1 Ufa State Petroleum Technological University, 450062, Ufa, Russia
ORCID: https://orcid.org/0000-0003-3060-6460, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0001-7197-605X, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0001-5406-2352, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
2 Southwest Petroleum University, 610500, Chengdu, China
ORCID: https://orcid.org/0000-0001-9566-3488, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ABSTRACT
The article presents researches of ferromagnetic additives that can reduce the internal roughness of the pipeline, thereby reducing the hydraulic resistance. A setup has been developed for conducting experiments to determine the effectiveness of ferromagnetic additives. The results of experiments are presented, which showed that the additives allow increasing the volumetric flow rate of the pumped medium.
KEYWORDS: oil product pipeline, hydraulic resistance, capacity, roughness, additives, volumetric flow rate, magnetic fluid.
For citation: Sagadeeva A.D., Valeev A.R., Tashbulatov R.R., Chen Yang THE APPLICATION OF FERROMAGNETIC ADDITIVES TO INCREASE HYDRAULIC EFFICIENCY OF OIL PRODUCT PIPELINES. Transport and Storage of Oil Products and Hydrocarbons. 2020, no. 3, pp. 18-21.
DOI:10.24411/0131-4270-2020-10304
Acknowledgments: The reported study was funded by RFBR and NSFC according to the research project № 19-58-53009.
DEVELOPMENT OF AN INTEGRAL SELECTION CRITERION CHARACTERISTICS OF THE PIPELINE INCREASING IT DURABILITY IN THE ARCTIC CONDITIONS (P. 22-27)
Zaripov Ruslan F., Ishberdina Zilya R., Korobkov Gennadiy E., Yusupov Ruslan M.,
Ufa State Petroleum Technological University, 450062, Ufa, Russia
E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
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ABSTRACT
It is proposed to develop a methodology that will evaluate the characteristics of the pipeline by the value of the integral indicator, which will help to generalize all the required characteristics of the pipeline. The methodology includes the following provisions: identification of factors that have the most significant impact on the characteristics of the pipeline; ranking of factors by importance; calculation of the integral indicator of the criterion for the characteristics of the pipeline.
KEYWORDS: pipeline, negative temperatures, extreme north, pipeline characteristics, integral indicator.
For citation: Zaripov R.F., Ishberdina Z.R., Korobkov G.E., Yusupov R.M. DEVELOPMENT OF AN INTEGRAL SELECTION CRITERION CHARACTERISTICS OF THE PIPELINE INCREASING IT DURABILITY IN THE ARCTIC CONDITIONS. Transport and Storage of Oil Products and Hydrocarbons. 2020, no. 3, pp. 22-27.
DOI:10.24411/0131-4270-2020-10305
A PREDICTION MODEL OF HYDRAULIC EFFICIENCY OF DRAG REDUCTION IN PIPELINES BY RELATIVE SHEAR STRESS IN A DISKTURBULENT RHEOMETER (P. 28-34)
Yang1 Chen, Nechval2 Andrew M., Peng3 Yang, Muratova2 Vera I., Valeev2 Anvar R., Tashbulatov2 Radmir R.,
1Southwest Petroleum University, 610500,Chengdu,China
ORCID: https://orcid.org/0000-0001-9566-3488, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
2Ufa State Petroleum Technological University, 450062, Ufa, Russia
ORCID: https://orcid.org/0000-0001-6708-2088, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0001-9243-9878, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0001-7197-605X, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0001-5406-2352, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
3China Petroleum & Chemical Corporation (Sinopec Corp.), Southwest Branch, 610000, Chengdu, China
ORCID: https://orcid.org/0000-0002-1999-6587, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ABSTRACT
In this work, laboratory tests of five anti-turbulent additives dilute solutions were carried out at a concentration θ=0...60 ppm in two brands diesel fuel at various Reynolds numbers Re=3×105...8×105. Based on the results of the drag reduction efficiency DR obtained in the commercial industrial tests of three additives with diesel transportation, the drag reduction efficiency forecast in the pipeline was developed using the relative shear stress model in the disk rheometer. In comparison with the results of laboratory experiment and the industrial test, the average relative error of the proposed calculated dependence does not exceed 5%.
KEYWORDS: anti-turbulent additive, drag reduction, hydraulic efficiency, pipeline transport, disc rheometer, shear stress.
For citation: Chen Yang, Nechval A.M., Yang Peng, Muratova V.I., Valeev A.R., Tashbulatov R.R. A PREDICTION MODEL OF HYDRAULIC EFFICIENCY OF DRAG REDUCTION IN PIPELINES BY RELATIVE SHEAR STRESS IN A DISKTURBULENT RHEOMETER. Transport and Storage of Oil Products and Hydrocarbons. 2020, no. 3, pp. 28-34.
DOI:10.24411/0131-4270-2020-10306
Acknowledgments: This study was financially supported by NSFC of China (№ 52004241, № 5197042120), RFBR and NSFC of China (№ 19-58-53009).
DETERMINATION OF THE OPTIMAL CONCENTRATION OF AN ANTI-TURBULENCE ADDITIVE USING DIFFERENTIAL CALCULUS AND MATHEMATICAL ANALYSIS (P. 35-39)
Moiseenko Taras A., Muratova Vera I., Nechval Andrew M., Farukhshina Regina R.,
Ufa State Petroleum Technological University, 450062, Ufa, Russia
ORCID: https://orcid.org/0000-0002-5418-1551, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0001-9243-9878, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0001-6708-2088, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0002-1825-5496, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ABSTRACT
The introduction of an anti-turbulence additive into a flow of a pumped liquid allows not only to reduce the hydraulic resistance of the pipeline, but also to increase the energy efficiency of the entire main pipeline due to its optimal dosing. The method of calculating the optimal (minimum) concentration of the introduced anti-turbulence additive on several stages of the main pipeline is presented. An example of calculation with ensuring the conditions of reliable operation of the pipeline system is given.
KEYWORDS: turbulent viscosity reducing additive, hydraulic efficiency, concentration of the additive, the curve of efficiency, optimization.
For citation: Moiseenko T.A., Nechval A.M., Muratova V.I., Farukhshina R.R. DETERMINATION OF THE OPTIMAL CONCENTRATION OF AN ANTI-TURBULENCE ADDITIVE USING DIFFERENTIAL CALCULUS AND MATHEMATICAL ANALYSIS. Transport and Storage of Oil Products and Hydrocarbons. 2020, no. 3, pp. 35-39.
DOI:10.24411/0131-4270-2020-10307
Acknowledgements: The reported study was funded by RFBR and NSFC according to the research project №19-58-53009.
ASSESSMENT OF THE POSSIBILITY OF USING HIGHLY MINERALIZED GROUNDWATER AT OIL AND GAS TRANSPORT AND STORAGE FACILITIES ON THE EXAMPLE OF THE REPUBLIC OF BASHKORTOSTAN (P. 40-43)
Kolchin Alexander V., Lokshina Evgeniya A., Lokshin Alexander A., Mastobaev Boris N.,
Ufa State Petroleum Technological University, 450062, Ufa, Russia
ORCID: https://orcid.org/0000-0001-6581-0045, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0001-5444-5812, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0002-9156-122X, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0001-5379-9520, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ABSTRACT
The article is devoted to the preparation of highly mineralized groundwater for transportation and storage systems of oil and gas on samples collected in the territory of the Republic of Bashkortostan.The relevance of the article is justified by the development of pipeline transport in general and the global trend towards rational use of resources and energy-saving technologies. The aim is to assess the technical applicability of the electrodialysis treatment, based on preliminary laboratory tests.
KEYWORDS: electrodialysis, water treatment, underground water, high mineralization, industrial water.
For citation: Kolchin A.V., Lokshina E.A., Lokshin A.A., Mastobaev B.N. ASSESSMENT OF THE POSSIBILITY OF USING HIGHLY MINERALIZED GROUNDWATER AT OIL AND GAS TRANSPORT AND STORAGE FACILITIES ON THE EXAMPLE OF THE REPUBLIC OF BASHKORTOSTAN. Transport and Storage of Oil Products and Hydrocarbons. 2020, no. 3, pp. 40-43.
DOI:10.24411/0131-4270-2020-10308
RESILIENCY AND LIQUID INERTIA EFFECTS AT TRANSIENT PROCESS IN THE PIPELINE (P. 44-53)
Konoplev Nikolay G., Korobkov Gennady E.,
Ufa State Petroleum Technological University,
450062, Ufa, Russia,
ORCID: https://orcid.org/0000-0001-6670-4738, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0002-8507-6500, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ABSTRACT
This article gives a brief description of the transient process start-up process of a system with mass, elasticity and viscosity. Theoretical dependencies are given that describe the oscillatory (for non-extended pipelines) or aperiodic (for long pipelines) process of fluid deformation, accompanying an increase in the velocity of the entire mass of fluid when the pump is started. The theoretical foundations for the development of a new method for pumping liquid through pipelines have been laid.
KEYWORDS: transient process, movement, liquid, electrohydraulic analogy, solution, differential equation, pipeline, deformation, inertia
For citation: Konoplev N.G, Korobkov G.E. RESILIENCY AND LIQUID INERTIA EFFECTS AT TRANSIENT PROCESS IN THE PIPELINE. Transport and Storage of Oil Products and Hydrocarbons. 2020, no. 3, pp. 44-53.
DOI:10.24411/0131-4270-2020-10309
SAFETY ASSESSMENT OF THE TANK FARM OF OIL PUMP STATIONS OPERATION WHEN USING THE "THROUGH TANKS" METHOD TAKING INTO ACCOUNT CROSSFLOW (P. 54-63)
Gareev Mursalim M., Gabdinurov Ruslan R.,
Ufa State Petroleum Technological University, 450062, Ufa, Russia
ORCID: https://orcid.org/0000-0001-7478-3739, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0002-0115-8681, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ABSTRACT
The rate of oil charging / discharging in the tanks of different volume capacity was determined, taking into account the crossflow from tank to tank when shifting gate valves. The requirements of regulatory documents for the rate of charging into tanks are considered. As result, of comparing the design and actual charging / discharging, taking into account the crossflow, conclusions were drawn about the excess of the permissible charging / discharging in the tanks. Pressure vent valves throughput capacity, the speed of floating roofs movement and the speed of the flow through the nozzles were assessed, taking into account the crossflow. By calculations result, the need to take into account the crossflow in the design of tanks and the development of technological chart of the operation of tanks farm, was substantiated. A conceptual design of tank connections, which prevents the crossflow of oil /fuel when switching tanks, is proposed.
KEYWORDS: oil pump station, crossflow, tanks for oil and oil product, pressure ven tvalves.
For citation: Gareev M.M., Gabdinurov R.R. SAFETY ASSESSMENT OF THE TANK FARM OF OIL PUMP STATIONS OPERATION WHEN USING THE "THROUGH TANKS" METHOD TAKING INTO ACCOUNT CROSSFLOW. Transport and Storage of Oil Products and Hydrocarbons. 2020, no. 3, pp. 54-63.
DOI:10.24411/0131-4270-2020-10310
PROBLEMS OF PIPELINE HYDROCARBONS TRANSPORTATION IN PERMAFROST CONDITIONS AND WAYS OF THEIR SOLUTION (P. 64-67)
Garris Nina A., Poletaeva Olga YU., Bakiev Tagir A.,
Ufa State Petroleum Technological University, 450062, Ufa, Russia
ORCID: https://orcid.org/0000-0001-7486-4491, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.;
ORCID: http://orcid.org/0000-0002-9602-0051, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.;
ORCID: https://orcid.org/0000-0003-4069-0176, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.;
ABSTRACT
Staying of permafrost during the construction and operation of trunk pipelines cause a problem. Artificial freezing of the foundation soil is not always effective. A sufficient effect is achieved with an integrated approach: compliance with the III principle of using frozen soils as a base and technological regulation of heat exchange between the pipeline and the environment. The correct choice of the pipeline laying method and operational regulations contributes to the underlying permafrost soils safety.
KEYWORDS: permafrost soils, technogenic impact, thermal interaction, thawing halo, III construction principle, controlled heat exchange, thermohydraulic calculation, ground laying.
For citation: Garris N.A., Poletaeva O.YU., Bakiev T.A. PROBLEMS OF PIPELINE HYDROCARBONS TRANSPORTATION IN PERMAFROST CONDITIONS AND WAYS OF THEIR SOLUTION. Transport and Storage of Oil Products and Hydrocarbons. 2020, no. 3, pp. 64-67.
DOI:10.24411/0131-4270-2020-10311
VIBRATION FREQUENCIES OF HYDRODYNAMIC REASON IN PROCESS PIPELINES (P. 68-72)
Tokarev Artem P., Spirin Sergey E.,
Ufa state petroleum technological university, 450062, Ufa, Russia
ORCID: https://orcid.org/0000-0001-8684-2011, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0003-0761-0584, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ABSTRACT
The research is devotedto determining the hydrodynamicvibration frequencies in process pipelines. Fluctuations in piping strapping can be caused by both hydrodynamic causes and eddy formation at local resistances, as well as resonance with the natural frequencies of the strapping. In some cases, the vibration of pipelines exceeds the permissible norms by 1.5-2 times. The range of vibration frequencies of a hydrodynamic nature directly depends on the flow rate of the working medium. As the latter decreases, the range also decreases. In any bend of the pipeline, with a sufficient flow rate of liquid, vortex formation occurs, which is the cause of forced vibrations. The values of the Strouhal number, which characterizes hydrodynamic phenomena in non-stationary flow regimes, for the flow of liquids in local pipeline resistances are very little studied.
KEYWORDS: vibration, vortex formation, hydrodynamics, process pipelines, pump piping, Strouhal number.
For citation: Tokarev A.P., Spirin S.E. VIBRATION FREQUENCIES OF HYDRODYNAMIC REASON IN PROCESS PIPELINES. Transport and Storage of Oil Products and Hydrocarbons. 2020, no. 3, pp. 68-72.
DOI:10.24411/0131-4270-2020-10312
USING THE ANSYS SOFTWARE PACKAGE IN THE STUDY OF HYDRODYNAMIC PARAMETERS AND VIBRATION OF PIPELINES (P. 73-76)
Baykova Lyalya R., Novichkov Anton V.,
Ufa State Petroleum Technological University, 450062, Ufa, Russia
ORCID: https://orcid.org/0000-0003-3021-159X, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0002-5359-5816, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ABSTRACT
The article presents the stages of studying the hydrodynamic parameters of a fluid flow using CFD analysis in order to identify flow pulsations that have arisen as a result of the passage of local resistances by the liquid, describes a method for determining the vibration level of technological pipeline sections based on the results of hydrodynamic modeling. Analysis of the results of the study showed that the principle of determining the vibration level of technological pipelines described in the article is promising and can be used to assess the vibration of complex structures.
KEYWORDS: Pipeline, vibration, fluid dynamics, CFD analysis, Ansys.
For citation: Baykova L.R., Novichkov A.V. USING THE ANSYS SOFTWARE PACKAGE IN THE STUDY OF HYDRODYNAMIC PARAMETERS AND VIBRATION OF PIPELINES. Transport and Storage of Oil Products and Hydrocarbons. 2020, no. 3, pp. 73-76.
DOI:10.24411/0131-4270-2020-10313
CONSTRUCTION AND REPAIR OF GAS AND OIL PIPELINES AND GAS AND OIL STORAGE FACILITIES
ENSURING STABILIZATION OF THE DESIGN POSITION OF UNDERGROUND PIPELINES IN PERMAFROSTSOILS (P. 77-81)
Kozhaeva Ksenia V., Alikov Stanislav A., Akchurina Elvina A.,
Ufa State Petroleum Technological University, 450062, Ufa, Russia
ORCID: https://orcid.org/0000-0003-0432-2341, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ABSTRACT
The article considers one of the possible ways (options) of improving the technology of construction of buried pipelines in permafrost soils, which is very relevant nowadays. The most significant drawbacks of existing underground pipelines in permafrost soils are the thermal effects of the pipeworks/pipeline on permafrost soils during operation and the occurrence of unacceptable pipe deformations. The aim of the research is to prevent or minimize the thermal effect of the pipeline on permafrost soils during operation, and as a result, to ensure the stability (stabilization) of the pipeline by preventing unacceptable values of pipeline deformations. The main goals solved in the research: – to develop a way of laying an buried pipework/underground pipelines in permafrost soils; – to simulate the construction of buried pipework/ underground pipelines and calculate the stress-strain state in the ANSYS software package, as well as the calculation of the thermal interaction of the structure and permafrost soils in the FROST 3D Universal software package.
KEYWORDS: undergroundpipelines, permafrostsoils, thawinghalo, deformations, thermal insulation, FROST 3D Universal, ANSYS Workbench.
For citation: Kozhaeva K.V., Alikov S.A., Akchurina E.A. ENSURING STABILIZATION OF THE DESIGN POSITION OF UNDERGROUND PIPELINES IN PERMAFROSTSOILS. Transport and Storage of Oil Products and Hydrocarbons. 2020, no. 3, pp. 77-81.
DOI:10.24411/0131-4270-2020-10314
HAZARD ASSESSMENT OF NON-CRACK-LIKE DEFECTS OF PIPELINE WELDED JOINTS (P. 82-86)
Vafin Tagir I., Rafikov Salavat K., Sharnina Gulnara S.,
Ufa State Petroleum Technological University,
450062, Ufa, Russia
ORCID: https://orcid.org/0000-0002-6714-811X, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0002-8333-5521, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0003-0285-8425, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ABSTRACT
The article presents an algorithm for calculating the durability of a pipeline with a combination of two non-crack-like defects. A key feature of the low-cycle life technique is the determination of the stress concentration factor for a specific defect. The joint consideration of two defects consists in improving the well-known formula for calculating the stress concentration coefficient by adding a coefficient determined from the results of static tensile tests of flat welded specimens. The results obtained analytically are compared with the results of numerical modeling in the ANSYS software package.
KEYWORDS: reliability, durability, pipeline, weld defects, ANSYS software package.
For citation: Vafin T.I., Rafikov S.K., Sharnina G.S. HAZARD ASSESSMENT OF NON-CRACK-LIKE DEFECTS OF PIPELINE WELDED JOINTS. Transport and Storage of Oil Products and Hydrocarbons. 2020, no. 3, pp. 82 - 86.
DOI:10.24411/0131-4270-2020-10315
EQUAL FREQUENCY VIBRATION ISOLATING SYSTEM BASED ON AN ELASTIC ELEMENT MOVING BETWEEN THE GUIDES OF THE CALCULATED SHAPE PERPENDICULAR TO THEIR AXIS OF SYMMETRY (P. 87-91)
Zotov Alexey N., Kreminskiy Dmitriy A.,
Ufa State Petroleum Technological University,
450062, Ufa, Russia
ORCID: https://orcid.org/0000-0003-0250-3739, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ORCID: https://orcid.org/0000-0003-1930-5253, E-mail: Адрес электронной почты защищен от спам-ботов. Для просмотра адреса в вашем браузере должен быть включен Javascript.
ABSTRACT
The article proposes equal-frequency vibration isolation systems for oil pumping equipment, using the example of the NM 1250-260 unit.Equal-frequency vibration isolation systems have such a power characteristic that when the mass of the protected object changes, their natural frequency does not change. Currently, special springs are used as elastic elements of such equal-frequency systems, the design of which is a rather difficult task. In addition, a distinctive feature of such springs is their low bearing capacity. A design based on an elastic element moving between the guides of the calculated shape perpendicularly from the axis of symmetry is proposed. As the elastic elements of such equal-frequency vibration isolators, slot springs with high stiffness are considered.
KEYWORDS: vibration, vibration isolation, equal-frequency systems, systems with quasi-zero stiffness, oil pumps.
For citation: Zotov A.N., Kreminsky D.A. EQUAL FREQUENCY VIBRATION ISOLATING SYSTEM BASED ON AN ELASTIC ELEMENT MOVING BETWEEN THE GUIDES OF THE CALCULATED SHAPE PERPENDICULAR TO THEIR AXIS OF SYMMETRY. Transport and Storage of Oil Products and Hydrocarbons. 2020, no. 3, pp. 87-91.
DOI:10.24411/0131-4270-2020-10316
