{"title":"RESULTS OF INDUSTRIAL TESTS OF A CONDENSING VAPOR RECOVERY UNIT AT AN OFFSHORE OIL TERMINAL","authors":"A. A. Korshak, M. T. Gaisin, An. A. Korshak","doi":"10.17122/ntj-oil-2023-4-85-98","DOIUrl":"https://doi.org/10.17122/ntj-oil-2023-4-85-98","url":null,"abstract":"An effective method of reducing vapor emissions of liquid hydrocarbons, creating safe operating conditions for facilities for loading oil products into vehicles is the use of vapor recovery units (VRU). Among the available types of VRU, condensing installations are distinguished, the operation of which is based on the difference in the condensation temperatures of air and petroleum product vapors. To the advantages of condensing VRU developers refer: 1) safety; 2) low hydraulic resistance; 3) production of condensate of high commercial quality; 4) the possibility of accounting for the captured product; 5) the absence of secondary contaminated waste; 6) the practical absence of the need to purchase and dispose of consumables.
 The article presents the results of tests of the condensing VRU, called the «Condensation and Dispersion Complex», during the gasoline shipment at one of the offshore oil terminals in the spring and summer period.
 During the condensating VRU tests, the average degree of purification efficiency of the gas-air mixture (GAM) from gasoline vapors is established, which is significantly lower than the suppliers of condensing VRU declare and is
 completely insufficient to solve environmental problems. The content of hydrocarbons in the GAM at the output of the VRU turned out to be several times higher than was stated by the developer.
 The reason for this negative result is insufficient deep cooling of the gas-air mixture. It has been initially chosen incorrectly, because it does not take into account the accumulated experience in the world of using condensating URPs. The lowest achieved GAM temperature is several degrees higher than the coolant temperature in the condenser heat exchangers, which indicates an incorrect choice of condensation criteria.
 The amount of gasoline that was captured during the loading of one tanker was determined, as well as the amount of hydrate inhibitor required for this and the electricity consumption. It is established that the consumption of consumables during the operation of the condensing URP, called the «Condensation and Dispersion Complex», is rather high. Therefore, the developers' statement about the absence of consumption by the installation of consumables is a marketing technique.","PeriodicalId":493832,"journal":{"name":"Problemy sbora, podgotovki i transporta nefti i nefteproduktov","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135539129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"DEVELOPMENT OF A DIGITAL MODEL OF A PIPELINE IN PERMAFROST SOILS","authors":"T. S. Sultanmagomedov, T. M. Khalikov","doi":"10.17122/ntj-oil-2023-4-54-70","DOIUrl":"https://doi.org/10.17122/ntj-oil-2023-4-54-70","url":null,"abstract":"The work is devoted to the study of the stress-strain state of a pipeline laid in permafrost soils. The essence of the study is the development and verification of a tool for assessing the stress-strain state of a pipeline when changing the properties of the soil around the pipeline.
 The purpose of this study is to develop a computer model that takes into account the dependence of the mechanical properties of permafrost soils on temperature when calculating the stress-strain state of the pipeline during the destruction of thermal insulation.
 Research objectives:
 1. development of a coupled thermal and mechanical model of a pipeline in permafrost soil in application software;
 2. adding to the calculation model the dependence of soil properties on temperature;
 3. adding to the calculation model a change in the volume of soil due to freezing of liquid in the soil. Adding properties of heaving soil.
 The introduction deals with digital and analytical coupled thermal, mechanical and hydraulic models. The choice of a software package for modeling processes is substantiated, and the relevance of such modeling is also shown.
 The simulation of the pipeline defrosting process is carried out using the ANSYS software, which is based on the finite element method. The article shows the developed model of the pipeline, as well as the details of setting up such a model for thermal mechanical calculation. Features such as specifying loads and boundary conditions by steps, as well as setting the relationship of these steps are given.
 Based on the results of the thermal calculation, it was revealed that the depth of thawing in case of violation of thermal insulation for given boundary conditions varies from three to five meters from the daytime surface of the soil. With such a spread of the boundaries of the thawing halo, the pipeline deflection varies from 0 to 300 mm, while the equivalent stresses increase from 10 to 140 MPa.
 To improve the model, a method is proposed for setting the properties of soil heaving using the soil linear expansion coefficient. An experimental bench is proposed for determining the values of this coefficient depending on soil moisture and temperature difference.","PeriodicalId":493832,"journal":{"name":"Problemy sbora, podgotovki i transporta nefti i nefteproduktov","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135537043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. A. Bulatova, M. I. Mallyabaeva, T. V. Tyumkina, E. M. Zainutdinova, S. V. Bаlакirеvа
{"title":"ENVIRONMENTAL IMPACT AND SAFETY OF AGROPROTECTIVE CHEMICAL BASED ON THIAMETHOXAM","authors":"K. A. Bulatova, M. I. Mallyabaeva, T. V. Tyumkina, E. M. Zainutdinova, S. V. Bаlакirеvа","doi":"10.17122/ntj-oil-2023-4-137-152","DOIUrl":"https://doi.org/10.17122/ntj-oil-2023-4-137-152","url":null,"abstract":"The article is devoted to the aspects of environmental safety of the use of Aktara insecticide, widely used in the agro-protective sector, with the active substance thiamethoxam from the class of neonicotinoids. Studies have been carried out on the impact of insecticide on test organisms of soil and aquatic ecosystems, and its transformation in the process of laboratory biodegradation has been studied on the basis of chromato-mass-spectral analysis.
 In order to identify the anthropogenic load of soil and water ecosystems during the application of the Aktara preparation containing thiamethoxam, and to assess the toxicity of the insecticide, test objects were studied: earthworms (Lumbricus terrestris L.), shoe ciliates (Paramecium caudatum). The phytotoxicity of the drug was analyzed using test objects - seeds: corn (Zea mays), pea (Pisum sativum), tomato (Solanum lycopersicum), cucumber (Cucumis sativus), carrot (Daucus carota) and cabbage (Brassica oleracea), it was evaluated germination state. The biodegradation of thiamethoxam with the help of soil degrading microorganisms was studied.
 The material for the experiments was Aktara, in which the active ingredient is thiamethoxam. Fertile chernozem, selected from the ecologically clean territory of the Iglinsky district of the Republic of Bashkortostan.
 In the presented work, experiments were carried out on the effect of the drug on earthworms (Lumbricus terrestris L.), taking into account their behavior, the condition of contact of the test object with the insecticide was modeled.
 Studies on phytotoxicity were carried out, vegetables (cucumber, carrot, tomato, cabbage), cereals (corn) and legumes (peas) were used as test objects.
 Biotesting on infusoria-shoes (Paramecium caudatum) was carried out by an experimental method using the 2M-BIOTESTER device. Obtaining destructive material - microorganisms-destructors was carried out by the method of «imprints» in Petri dishes on meat-peptone agar, isolating them from fertile chernozem, selected in the Iglinsky district of Bashkortostan.
 The change in the destructive material of the active substance of the insecticide was determined using a thin layer chromatogram (TLC), Silufol UV-254 plates were used, the eluent was acetone, the developer was phosphomolybdic acid. Chromato-mass-spectral analysis was performed on a Shimadzu GC-9A instrument.
 The results of the analysis of the effect of the insecticide based on thiamethoxam on earthworms showed that this substance has a moderately toxic effect.
 In uncontaminated soil, in microbiota-rich chernozem, a large species spectrum and numerical composition of microorganisms were observed: Pseudomonas sp., Bacillus sp., Arthrobacter sp., Azotobacter sp., Flavobacterium sp. The introduction of an insecticide (IC) into the agrosystem leads to a decrease in biomass, inhibition of the microbiota, and a negative impact is noted at the working concentration declared by the","PeriodicalId":493832,"journal":{"name":"Problemy sbora, podgotovki i transporta nefti i nefteproduktov","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135537038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ANALYSIS OF VISCOSITY CORRELATIONS APPLICABILITY FOR OILS OF THE REPUBLIC OF BASHKORTOSTAN","authors":"L. D. Nabieva, E. A. Malyavko","doi":"10.17122/ntj-oil-2024-4-35-42","DOIUrl":"https://doi.org/10.17122/ntj-oil-2024-4-35-42","url":null,"abstract":"Decisions quality of infrastructure development also depends on the reliability of multiphase flow modeling results in oil and gas production systems. Different specialized bundled software and Informational System RN-KIN are used for the modeling of multiphase systems to solve the assigned tasks for Republic Bashkortostan’s oil fields.
 The modeling practice assumes the handling of large amount of initial data: geometrical properties of pipe systems, terrain elevation, technological modes of pumping, conditions of heat exchange with the environment, transport properties of oil fluid. Information about network construction and terrain elevation can be obtained from the projects and the acts of implementation of these projects, the conditions of pumping are available from operation-dispatch information, but verification of viscosity properties of oil fluids causes difficulties and requires additional laboratory tests. At the same time on
 oil fields of Republic Bashkortostan a lot of experimental physicochemical properties data of oils belonging to different oil reservoirs has been accumulated, which requires systematization and generalization of available experimental data.
 The article describes the difficulties in modeling of viscosity of oil fluids taking into account the characteristics of physicochemical properties of oils of Republic Bashkortostan’s oil fields. The necessity of systematization of existing retrospective laboratory tests and selection of viscosity correlations is indicated. 
 The authors of the article for the first time analyzed and selected correlations of viscosity of oil and water-oil emulsions for Republic Bashkortostan’s oil fields, which will allow to increase accuracy and efficiency of hydraulic calculations on which basis the decisions about development of infrastructure of fields are made.","PeriodicalId":493832,"journal":{"name":"Problemy sbora, podgotovki i transporta nefti i nefteproduktov","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135537387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"THE FLUID PRESSURE IN A HYDRAULIC FRACTURE PERPENDICULAR TO THE HORIZONTAL WELL","authors":"R. A. Bashmakov, N. O. Fokeeva, A. A. Shammatova","doi":"10.17122/ntj-oil-2023-4-43-53","DOIUrl":"https://doi.org/10.17122/ntj-oil-2023-4-43-53","url":null,"abstract":"For many decades, the hydraulic fracturing method, due to its efficiency, has been actively used to increase the productivity of wells in the oil and gas industry. This article is devoted to modeling fluid filtration in a fracture obtained by hydraulic fracturing running perpendicular to the wellbore.
 The cases of constant flow rate and constant pressure in the well are considered in the paper. A mathematical model of the «well – fracture – reservoir» system for the case of a hydraulic fracture perpendicular to the well is described. The solution is derived by the sequential change of stationary states method, graphs with the results of test calculations are plotted.","PeriodicalId":493832,"journal":{"name":"Problemy sbora, podgotovki i transporta nefti i nefteproduktov","volume":"326 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135538372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. K. Strelkov, M. V. Shuvalov, E. D. Palagin, A. A. Pavluhin, S. Yu. Teplykh, I. V. Lapshakova
{"title":"LABORATORY STUDY ON THE SEDIMENTATION OF SURFACE WASTEWATER POLLUTANT COMPONENTS IN HISTORICAL PART OF SAMARA","authors":"A. K. Strelkov, M. V. Shuvalov, E. D. Palagin, A. A. Pavluhin, S. Yu. Teplykh, I. V. Lapshakova","doi":"10.17122/ntj-oil-2023-4-162-175","DOIUrl":"https://doi.org/10.17122/ntj-oil-2023-4-162-175","url":null,"abstract":"The article discusses the existing drainage systems in Samara, the proposed project for the reconstruction of storm collector outlets located within the boundaries of the historical part of Samara.
 One of the factors of reservoir pollution (of Volga and Samara rivers) is untreated surface wastewater. The article specifies the outlets in the historical part of the city pernicious for the water reservoir.
 The study on the sedimentation of pollutant components contained in surface wastewater disposed from the historical part of Samara was held.
 As a result of the research, it was found that due to treatment facilities and storage tanks construction, as well as wastewater pumping into the household sewerage system, surface wastewater pumping will reduce the anthropogenic impact on the reservoir.
 It will also contribute to some extent to household waste dilution and increase the hydraulic load on urban sewage treatment plants.
 The water bodies of the water area of Samara are experiencing anthropogenic pressure, including due to untreated surface wastewater.
 The qualitative indicators of surface wastewater of a large industrial center have been studied on the example of the urban district of Samara. A list of negative indicators for water bodies has been determined; their maximal, average and minimal value ranges have been specified. It was revealed that the presented data will not have a negative impact on the centralized water disposal systems of settlements and urban districts.","PeriodicalId":493832,"journal":{"name":"Problemy sbora, podgotovki i transporta nefti i nefteproduktov","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135537526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. A. Terekhov, F. F. Huaman, E. G. Telyashev, S. M. Mavlyutova, I. D. Bespalov, А. А. Galimov, V. A. Kupavyh
{"title":"STUDY OF INFLUENCE DEGREE OF GAS PUMPING UNIT OUTPUT PARAMETERS ON POLLUTANT EMISSION","authors":"A. A. Terekhov, F. F. Huaman, E. G. Telyashev, S. M. Mavlyutova, I. D. Bespalov, А. А. Galimov, V. A. Kupavyh","doi":"10.17122/ntj-oil-2023-4-220-236","DOIUrl":"https://doi.org/10.17122/ntj-oil-2023-4-220-236","url":null,"abstract":"Gas turbine plants, as well as all types of gas-using equipment, have a long service life, during which, along with the operational performance deterioration, pollutant emissions are expected to change.
 To take this factor into account, when developing algorithms for determining pollutant emissions from gas pumping units based on operational parameters, an analysis of changes in NOx and COx emissions (nitrogen oxides and carbon oxides) when the output parameters of the gas pumping unit deviates from the nominal ones has been carried out.
 The impact of operating time, repairs of the drive motor, flushing of the AL-31ST flow section was investigated.
 Additional tests to simulate the reduction in the available power of the unit due to a decrease in the efficiency of the axial compressor, which made it possible to quantify the impact of the deterioration in the technical condition of the gas turbine plant on NOx and COx emission were carried out.","PeriodicalId":493832,"journal":{"name":"Problemy sbora, podgotovki i transporta nefti i nefteproduktov","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135536877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. A. Fedorov, E. V. Lucyk, T. V. Latypova, V. M. Latypov
{"title":"PROBABILISTIC FORECASTING OF THE SERVICE LIFE OF REINFORCED CONCRETE AT ARCTIC OIL AND GAS FACILITIES, CONSIDERING DEFECTS AND DAMAGE","authors":"P. A. Fedorov, E. V. Lucyk, T. V. Latypova, V. M. Latypov","doi":"10.17122/ntj-oil-2023-4-71-84","DOIUrl":"https://doi.org/10.17122/ntj-oil-2023-4-71-84","url":null,"abstract":"Currently, large fuel and energy companies are conducting intensive development of the Arctic territories of the Russian Federation by commissioning new capital construction facilities. At the same time, new formulations of modified concrete with improved performance properties are used. However, in extreme construction conditions, defects and damages can form, which affect the durability of structures. The paper presents the results of probabilistic modeling of the failure-free operation of reinforced concrete according to the criterion of the impact of carbon dioxide on concrete for the conditions of the new shift settlement Sabetta. Concretes with a water-cement ratio of 0.35 and 0.5 on slag-Portland cement were taken as calculated values. The results showed that without defects and damage, the period of normal operation generally corresponds to the design value of 50 and 100 years. If there are defects, the first local areas will appear in 40 years. Recommendations on repair of the considered defects and damages are given.","PeriodicalId":493832,"journal":{"name":"Problemy sbora, podgotovki i transporta nefti i nefteproduktov","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135538370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"METHOD FOR ESTIMATING THE LENGTH OF MAN-CAUSED FRACTURE DEPENDING ON BOTTOMHOLE INJECTION PRESSURE","authors":"A. V. Syundyukov, D. K. Sagitov","doi":"10.17122/ntj-oil-2023-2-40-51","DOIUrl":"https://doi.org/10.17122/ntj-oil-2023-2-40-51","url":null,"abstract":"Most of Russia's recoverable oil reserves are hard-to-recover reserves. One of the key technologies for the development of these reservoirs is the use of a reservoir pressure maintenance system. The evolution of the development of flood control methods does not stand still. Today, the issue of studying the propagation of self-induced hydraulic fracturing cracks is one of the most important challenges. Over time, as the transition to the development of zones with low permeability values and an increase in down hole pressure in injection wells, the manifestation of the self-induced hydraulic fracturing effect began to be widespread. This was confirmed not only by the dynamics of the water content of products with an increase in the pick-up of neighboring injection wells, but also by hydrodynamic studies of wells, tracer studies, adaptation of the hydrodynamic model taking into account the cracks of the self-induced hydraulic fracturing. Over time, according to the results of studies of geomechanical properties in the deposits of Western Siberia, the direction of the regionally stressed state was established, which coincides with the azimuthal direction of the development of self-induced hydraulic fracturing cracks. Modern development systems take into account the direction of the regional stress state. These systems are mainly located parallel to the cracks of the self-induced hydraulic fracturing to exclude breakthroughs from injection wells to producing wells.
 Estimation of the parameters of auto-fracturing fractures depending on the injectionmodes is an urgent task that requires the creation of appropriate calculation methods. Control of the waterflood modes for a group of injection wells under conditions of critical bottomhole pressures exceeding the value of the rock fracture pressure is the purpose of this work. A method for estimating the parameters of man-caused fracture from given initial parameters is proposed.","PeriodicalId":493832,"journal":{"name":"Problemy sbora, podgotovki i transporta nefti i nefteproduktov","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136067096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ACCOUNTING FOR FLUID FLOW IN DETERMINING THE PRESSURE DROP IN FORMATIONS SEPARATED BY A CLAY INTERLAYER","authors":"G. R. Izmailova, A. A. Mugatabarova","doi":"10.17122/ntj-oil-2023-2-52-61","DOIUrl":"https://doi.org/10.17122/ntj-oil-2023-2-52-61","url":null,"abstract":"The article deals with the problem of determining the pressure drop in two parallel formations operated by horizontal wells. At the same time, the layers are separated by a low permeable clay partition. The problem is solved analytically by the method of Laplace and Fourier transformations. For convenient practical use, the solutions obtained are transformed into a dimensionless form. In this paper, graphs of the dependences of pressure drops in both layers on time are constructed and the analysis of the solutions obtained is carried out depending on the ratios of the permeability of the layers and the bridge. The solutions obtained can be used to estimate the pressure drop during the development of layers alternating with clay interlayer.","PeriodicalId":493832,"journal":{"name":"Problemy sbora, podgotovki i transporta nefti i nefteproduktov","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136067095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}