FREQUENCY-CONTROLLED ELECTRIC DRIVE OF THE MAIN OIL PIPELINE PUMP WITH CONTROL BY THE POSITION OF THE CONTROL VALVE

Author(s):  
Д.В. Барабанов ◽  
В.А. Хвостов
Author(s):  
Andrey V. Zakharchenko ◽  
◽  
Alexander E. Gonchar ◽  
Roman Y. Shestakov ◽  
Polina V. Pugacheva ◽  
...  

The procedure for action in cases of a threat or an accident at oil pipeline transport facilities is defined in the relevant plans for emergency spillage prevention and response – ESPR. The purpose of the article is to analyze the requirements of the legislation in the field of development and approval of ESPR. The specifics of ESRP development at trunk pipeline facilities in Russia are noted, the US experience in combating oil and oil products spillage is presented. The problematic issues in the development and approval of ESRP, relevant for the domestic system of main oil pipeline transport, have been considered. It was established that the Federal Law No. 207-FL, adopted in July 2020, fundamentally changed the outdated and required revision approach to the coordination and approval of ESRP. At the same time, further work is needed to create a regulatory framework that establishes requirements for ESRP, as well as to improve ESRP, taking into account modern methods of predicting accidents, identifying emergencies, risk-oriented approaches to planning measures to localize and eliminate accidents, the specifics of operating organizations.


2011 ◽  
Vol 8 (1) ◽  
pp. 201-210
Author(s):  
R.M. Bogdanov

The problem of determining the repair sections of the main oil pipeline is solved, basing on the classification of images using distance functions and the clustering principle, The criteria characterizing the cluster are determined by certain given values, based on a comparison with which the defect is assigned to a given cluster, procedures for the redistribution of defects in cluster zones are provided, and the cluster zones parameters are being changed. Calculations are demonstrating the range of defect density variation depending on pipeline sections and the universal capabilities of linear objects configuration with arbitrary density, provided by cluster analysis.


2020 ◽  
Vol 30 ◽  
pp. 6-10
Author(s):  
A.A. Antonov ◽  
Yu.A. Yakovlev ◽  
G.G. Ammosov ◽  
Z.G. Kornilova

Author(s):  
Jing Gong ◽  
Jian Cai

Regulating valves are the important components of control system on oil pipeline. The opening of the valves is changed to regulate flow and pressures of pipelines. Operating characteristic of valves is the most important factor influencing the regulating quality, and the distortion is great in actual operation with the variation of working conditions. Beginning with the inherent flow and resistance characteristics of regulating valves, the coefficient of discharge was adjusted considering the influence of fluid viscosity. The relationship between the deformity characteristics of valves and ratio of pressure cut down or turndown ratio was discussed. The system made up by a pump, a valve and a tank was an example to analyze the factors affected the operating characteristic of valves in the actual operation. The influences of different closing valve times, different closing valve laws and different ratio of pressure cut down or turndown ratio on the operating characteristic of valves were analyzed by simulation using Visual Basic program. The results indicated that the operating characteristics of valves were different. And the method of two-stage closing valve was adopted according to the changes of operating characteristic of valves by different closing valve time, different shutting valve laws. The distortion degree of valves in the operation of pipeline was decreased mostly. Then the selection measures of regulating valves were discussed. The factors influencing operating characteristic of valves were analyzed comprehensively. Theory criteria can be provided for selecting regulating valves of pipeline correctly. It is also the key to stable and economically operation control of pipelines.


10.12737/444 ◽  
2013 ◽  
Vol 2 (3) ◽  
pp. 3-9
Author(s):  
Котляревский ◽  
Vladimir Kotlyarevskiy

The problems relating to assessment of pipelines operated in the permafrost were analyzed and the need to resolve them was justified. Possible methods and software tools allowing the systematic approach implementation to forecasting the stress state of pipelines were presented. The strength prediction algorithm of main pipelines upon deformation due to the soil subsidence in the thawing areoles in permafrost sections was shown. The calculation of thawing and subsidence zone is based on existing rules with adaptation to underground pipelines. For operation safety control the alternative calculations of main oil pipeline durability for real conditions of the route section in the Amur region district have been executed.


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