Pub Date : 2019-08-31DOI: 10.28999/2514-541x-2019-3-1-22-28
R. Sunagatullin, R. Karimov, M. E. Dmitriev, M. I. Baykova
The paper presents the results of experimental laboratory studies of the properties of asphaltene-resin-wax deposits (ARWD) affecting the efficiency and reliability of pumping. The analysis of negative and positive properties of deposits, including corrosion impact of ARWD on the oil pipeline wall, was carried out. The thermal conductivity coefficient of heavy oil deposits samples taken from existing oil trunk pipelines (OTP) was measured. To assess the influence of the deposit layer on the smoothness of the inner surface of the pipe wall, tests were carried out to determine the roughness coefficient using the samples of pipe spool segments. The samples were cut from the sections of OTP under repair, the inner surface of which is covered with a layer of ARWD, accumulated and hardened during the long-term operation of pipelines, periodically affected by in-line cleaning pigs. The results of laboratory studies of the ARWD thermophysical properties confirmed the relatively high thermal insulation properties and smoothing ability of the deposit layer. Tests to assess the corrosion properties of ARWD showed the possibility of reducing the corrosion rate due to the passive protection of the deposit layer formed on the inner surface of the pipe wall.
{"title":"Experimental studies of operational properties of asphaltene-resin-wax deposits formed in oil trunk pipelines","authors":"R. Sunagatullin, R. Karimov, M. E. Dmitriev, M. I. Baykova","doi":"10.28999/2514-541x-2019-3-1-22-28","DOIUrl":"https://doi.org/10.28999/2514-541x-2019-3-1-22-28","url":null,"abstract":"The paper presents the results of experimental laboratory studies of the properties of asphaltene-resin-wax deposits (ARWD) affecting the efficiency and reliability of pumping. The analysis of negative and positive properties of deposits, including corrosion impact of ARWD on the oil pipeline wall, was carried out. The thermal conductivity coefficient of heavy oil deposits samples taken from existing oil trunk pipelines (OTP) was measured. To assess the influence of the deposit layer on the smoothness of the inner surface of the pipe wall, tests were carried out to determine the roughness coefficient using the samples of pipe spool segments. The samples were cut from the sections of OTP under repair, the inner surface of which is covered with a layer of ARWD, accumulated and hardened during the long-term operation of pipelines, periodically affected by in-line cleaning pigs. The results of laboratory studies of the ARWD thermophysical properties confirmed the relatively high thermal insulation properties and smoothing ability of the deposit layer. Tests to assess the corrosion properties of ARWD showed the possibility of reducing the corrosion rate due to the passive protection of the deposit layer formed on the inner surface of the pipe wall.","PeriodicalId":262860,"journal":{"name":"Pipeline Science and Technology","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116429300","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}
Pub Date : 2019-08-31DOI: 10.28999/2514-541x-2019-3-1-30-45
G. Pluvinage, J. Capelle
Steel is subject to hydrogen embrittlement (HE). This problem is relatively accurate for pipes transporting hydrogen pure or blended with natural gas. Therefore this problem has to be taken into account for the design and maintenance of pipe networks for this kind of transport. Design needs to modify the design factor for computing maximum working pressure in this case. Defect harmfulness needs specific tools for each type of defect which are the same as for pipe transporting natural gas, but the admissibility criterion is modified when transporting hydrogen. For cracking, harmfulness is determined with a failure assessment diagram with steel fracture toughness under HE. For defect correction, the estimated repair factor (ERF) is changing due to modification of the flow stress. For gouging, the Constraint Modified Failure Assessment Diagram (CMFAD) incorporates the actual material failure master curve. For dents, the criterion proposed by Oyane et al take into account the major reduction of elongation at failure. The influence of HE on fatigue endurance is seen through the fatigue assessment diagram(fAD). Discussion is based on recategorisation of defect, assessment tools, embrittlement and fatigue life duration.
{"title":"Design and maintenance of pipe networks transporting hydrogen pure or blended with natural gas","authors":"G. Pluvinage, J. Capelle","doi":"10.28999/2514-541x-2019-3-1-30-45","DOIUrl":"https://doi.org/10.28999/2514-541x-2019-3-1-30-45","url":null,"abstract":"Steel is subject to hydrogen embrittlement (HE). This problem is relatively accurate for pipes transporting hydrogen pure or blended with natural gas. Therefore this problem has to be taken into account for the design and maintenance of pipe networks for this kind of transport. Design needs to modify the design factor for computing maximum working pressure in this case. Defect harmfulness needs specific tools for each type of defect which are the same as for pipe transporting natural gas, but the admissibility criterion is modified when transporting hydrogen. For cracking, harmfulness is determined with a failure assessment diagram with steel fracture toughness under HE. For defect correction, the estimated repair factor (ERF) is changing due to modification of the flow stress. For gouging, the Constraint Modified Failure Assessment Diagram (CMFAD) incorporates the actual material failure master curve. For dents, the criterion proposed by Oyane et al take into account the major reduction of elongation at failure. The influence of HE on fatigue endurance is seen through the fatigue assessment diagram(fAD). Discussion is based on recategorisation of defect, assessment tools, embrittlement and fatigue life duration.","PeriodicalId":262860,"journal":{"name":"Pipeline Science and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128692297","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}
Pub Date : 2019-08-31DOI: 10.28999/2514-541x-2019-3-1-52-61
N. Makhutov, A. Bolshakov, M. Zakharova, Yulia S. Glyazentsova, I. N. Zueva, O. Chalaya, S. Lifshits
The paper presents the results of the analysis and the risk assessment of the accidents at tanks and gas pipelines operating in the North, and the results of the study of a biological product for oil spills cleanup, produced from indigenous microorganisms – oil destructors recovered from Arctic permafrost soils.
{"title":"HSE in the Arctic: Forecasting of emergency situations at oil and gas facilities and emergency petroleum products’ spill response in Arctic climatic conditions","authors":"N. Makhutov, A. Bolshakov, M. Zakharova, Yulia S. Glyazentsova, I. N. Zueva, O. Chalaya, S. Lifshits","doi":"10.28999/2514-541x-2019-3-1-52-61","DOIUrl":"https://doi.org/10.28999/2514-541x-2019-3-1-52-61","url":null,"abstract":"The paper presents the results of the analysis and the risk assessment of the accidents at tanks and gas pipelines operating in the North, and the results of the study of a biological product for oil spills cleanup, produced from indigenous microorganisms – oil destructors recovered from Arctic permafrost soils.","PeriodicalId":262860,"journal":{"name":"Pipeline Science and Technology","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124987127","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}
Pub Date : 2019-08-31DOI: 10.28999/2514-541x-2019-3-1-14-21
A. Samimi, P. Rajeev, A. Bagheri, A. Nazari, J. Sanjayan, Ahmadreza Amosoltani, M. T. Tarkesh Esfahani, S. Zarinabadi
Nowadays, computational tools for analyzing and collecting data in the operation of petroleum units are essential. One of the methods is the classification or regression to step in the overall process of knowledge extraction. In this paper, a specific type of decision tree algorithm, called the conditional contract arrangement, is Naphtha hydro-threating (NHT) units for 4 factors: Density, pH, total iron ions in vessels (S.FE) and H2S. All of these factors are related to corrosion in NHT units and this paper aims to optimize some conditions to eliminate it. In this regard, using ammonium water with a specific range and pH can be helpful. According to the obtained results the best range of density (in Feed) is less than 0.712 kg/m3, pH (water in vessels) is more than 6.5, S.FE is less than 1.4 ppm and H2S (in recycle gas) is less than 581 ppm. The outcomes also show how this approach can be used to gain insight into some refineries and how to deliver results in a comprehensible and user-friendly way.
{"title":"Use of data mining in the corrosion classification of pipelines in Naphtha Hydro-Threating Unit (NHT)","authors":"A. Samimi, P. Rajeev, A. Bagheri, A. Nazari, J. Sanjayan, Ahmadreza Amosoltani, M. T. Tarkesh Esfahani, S. Zarinabadi","doi":"10.28999/2514-541x-2019-3-1-14-21","DOIUrl":"https://doi.org/10.28999/2514-541x-2019-3-1-14-21","url":null,"abstract":"Nowadays, computational tools for analyzing and collecting data in the operation of petroleum units are essential. One of the methods is the classification or regression to step in the overall process of knowledge extraction. In this paper, a specific type of decision tree algorithm, called the conditional contract arrangement, is Naphtha hydro-threating (NHT) units for 4 factors: Density, pH, total iron ions in vessels (S.FE) and H2S. All of these factors are related to corrosion in NHT units and this paper aims to optimize some conditions to eliminate it. In this regard, using ammonium water with a specific range and pH can be helpful. According to the obtained results the best range of density (in Feed) is less than 0.712 kg/m3, pH (water in vessels) is more than 6.5, S.FE is less than 1.4 ppm and H2S (in recycle gas) is less than 581 ppm. The outcomes also show how this approach can be used to gain insight into some refineries and how to deliver results in a comprehensible and user-friendly way.","PeriodicalId":262860,"journal":{"name":"Pipeline Science and Technology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127410587","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}
Pub Date : 2019-08-31DOI: 10.28999/2514-541x-2019-3-1-4-12
P. A. Revel-Muroz, Transneft, Yakov M. Fridlyand, S. Kutukov, A. I. Golyanov
The article presents a method of quantitative assessment of the oil transportation efficiency through the trunk pipelines’ segments, considering the flow performance of the line section. In accordance with the methodology, the assessment of the oil pipelines’ energy performance parameters is performed according to the data recorded by built-in tools of supervisory control and data acquisition (SCADA) system, including: • efficiency factor of the oil pumping station – according to readings of pressure gauges installed at the pump station inlet and in the discharge header; • control factor of the automated pressure control system (APCS) – according to the readings of the pressure gauges installed in the discharge header and in the pumping station outlet line; • flow performance of the oil pipeline segment – according to the readings of the pressure gauges at the inlet/outlet of the oil pumping station and at the end of the technological segment of the oil pipeline. Using the example of the oil pipeline operation data analysis, it is shown that the proposed comparison criterion, the performance factor of the technological segment, enables to determine all the traditionally used criteria for assessing the actual operating conditions of the trunk oil pipelines, to identify the characteristic features of each mode, to compare the operation parameters of the pipelines with various diameters and designs.
{"title":"Assessment of the flow performance of oil pipelines using the operation discipline monitoring data","authors":"P. A. Revel-Muroz, Transneft, Yakov M. Fridlyand, S. Kutukov, A. I. Golyanov","doi":"10.28999/2514-541x-2019-3-1-4-12","DOIUrl":"https://doi.org/10.28999/2514-541x-2019-3-1-4-12","url":null,"abstract":"The article presents a method of quantitative assessment of the oil transportation efficiency through the trunk pipelines’ segments, considering the flow performance of the line section. In accordance with the methodology, the assessment of the oil pipelines’ energy performance parameters is performed according to the data recorded by built-in tools of supervisory control and data acquisition (SCADA) system, including: \u0000• efficiency factor of the oil pumping station – according to readings of pressure gauges installed at the pump station inlet and in the discharge header; \u0000• control factor of the automated pressure control system (APCS) – according to the readings of the pressure gauges installed in the discharge header and in the pumping station outlet line; \u0000• flow performance of the oil pipeline segment – according to the readings of the pressure gauges at the inlet/outlet of the oil pumping station and at the end of the technological segment of the oil pipeline. \u0000Using the example of the oil pipeline operation data analysis, it is shown that the proposed comparison criterion, the performance factor of the technological segment, enables to determine all the traditionally used criteria for assessing the actual operating conditions of the trunk oil pipelines, to identify the characteristic features of each mode, to compare the operation parameters of the pipelines with various diameters and designs.","PeriodicalId":262860,"journal":{"name":"Pipeline Science and Technology","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114879185","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}
Pub Date : 2019-08-31DOI: 10.28999/2514-541x-2019-3-1-62-66
E. I. Huseynli, R. Eminov, A. Ibragimova
The article describes the problem solution option to determine the size of the clear opening area for through-thickness damage in the underwater pipeline with encasement. The integrated method is proposed to determine damages like ruptures, bursts, kinks/breaks, etc., formed in the pipeline wall or in pipeline encasement joints. According to the proposed method, the main indicators that enable calculating the size of such damage – the distance to the point of damage occurrence and the pressure at the point of damage occurrence are determined separately – using fundamentally different methods. According to the method proposed, the distance to the point of through-thickness damage is determined by piezoelectric cells placed with a certain spacing in the pipeline – encasement annulus, and the pressure in the point of damage is estimated using classical design methods. The formula is obtained to calculate the size of the clear opening area for through-thickness damage according to the proposed integrated method.
{"title":"Integrated method of determining the size of clear opening area for through-thickness damages in underwater pipeline with encasement","authors":"E. I. Huseynli, R. Eminov, A. Ibragimova","doi":"10.28999/2514-541x-2019-3-1-62-66","DOIUrl":"https://doi.org/10.28999/2514-541x-2019-3-1-62-66","url":null,"abstract":"The article describes the problem solution option to determine the size of the clear opening area for through-thickness damage in the underwater pipeline with encasement. The integrated method is proposed to determine damages like ruptures, bursts, kinks/breaks, etc., formed in the pipeline wall or in pipeline encasement joints. According to the proposed method, the main indicators that enable calculating the size of such damage – the distance to the point of damage occurrence and the pressure at the point of damage occurrence are determined separately – using fundamentally different methods. According to the method proposed, the distance to the point of through-thickness damage is determined by piezoelectric cells placed with a certain spacing in the pipeline – encasement annulus, and the pressure in the point of damage is estimated using classical design methods. The formula is obtained to calculate the size of the clear opening area for through-thickness damage according to the proposed integrated method.","PeriodicalId":262860,"journal":{"name":"Pipeline Science and Technology","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129798876","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}
Pub Date : 2019-08-31DOI: 10.28999/2514-541x-2019-3-1-46-51
N. N. Golunov
The paper deals with interface mixing in back-to-back batching light petroleum products along the same pipeline. It is known that when one petroleum product is pumped back-to-back in the line without any separating device, a mixture is formed in the interface area of consistently moving batches, which is generally a substandard product. Therefore, the issue of reducing the substandard product volume is an important task that attracts an attention of scientists for many years. Since it is known that the volume of the resulting mixture depends on the intensity of convection and turbulent diffusion processes in the fluid flow in the line, the hydraulic drag reduction, at least in the contact area of petroleum products, can reduce the interface volume. It is shown that drag-reducing agents, usually injected into the flow of the transported liquid, can also be successfully used to reduce the volume of the substandard mixture. Formulas are given for calculating the hydraulic drag coefficient of a liquid with a drag-reducing agent depending on the concentration of this additive, the Reynolds number and the relative equivalent roughness of the inner pipe wall. The main aspects of the drag-reducing agent injection to reduce the petroleum products interface mixing in back-to-back batching are presented.
{"title":"Petroleum products interface volume reduction in back-to-back batching","authors":"N. N. Golunov","doi":"10.28999/2514-541x-2019-3-1-46-51","DOIUrl":"https://doi.org/10.28999/2514-541x-2019-3-1-46-51","url":null,"abstract":"The paper deals with interface mixing in back-to-back batching light petroleum products along the same pipeline. It is known that when one petroleum product is pumped back-to-back in the line without any separating device, a mixture is formed in the interface area of consistently moving batches, which is generally a substandard product. Therefore, the issue of reducing the substandard product volume is an important task that attracts an attention of scientists for many years. Since it is known that the volume of the resulting mixture depends on the intensity of convection and turbulent diffusion processes in the fluid flow in the line, the hydraulic drag reduction, at least in the contact area of petroleum products, can reduce the interface volume. It is shown that drag-reducing agents, usually injected into the flow of the transported liquid, can also be successfully used to reduce the volume of the substandard mixture. Formulas are given for calculating the hydraulic drag coefficient of a liquid with a drag-reducing agent depending on the concentration of this additive, the Reynolds number and the relative equivalent roughness of the inner pipe wall. The main aspects of the drag-reducing agent injection to reduce the petroleum products interface mixing in back-to-back batching are presented.","PeriodicalId":262860,"journal":{"name":"Pipeline Science and Technology","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121729539","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}
Pub Date : 2018-12-31DOI: 10.28999/2514-541X-2018-2-4-311-319
M. Valiev, F. V. Timofeev, Yu. N. Oludina, A. Kuznetsov
THIS PAPER EXAMINES THE PROBLEM of selecting efficient ARPD solvents in order to prepare pipelines for petroleum product transport. Solvents are used to remove deposits from the inner surface of the pipeline. The article proposes an approach which outlines the key characteristics of the solvents tested (rate of ARPD dissolution, cleaning efficiency, critical saturation concentration, dissolving capacity). The parameters obtained help to calculate the volume of ARPD solvent and contact time necessary to completely remove deposits from the surfaces being treated.
{"title":"Study on the efficiency of ARPD (asphaltene, resin and paraffin deposit) solvents when preparing pipelines for the transportation of petroleum products","authors":"M. Valiev, F. V. Timofeev, Yu. N. Oludina, A. Kuznetsov","doi":"10.28999/2514-541X-2018-2-4-311-319","DOIUrl":"https://doi.org/10.28999/2514-541X-2018-2-4-311-319","url":null,"abstract":"THIS PAPER EXAMINES THE PROBLEM of selecting efficient ARPD solvents in order to prepare pipelines for petroleum product transport. Solvents are used to remove deposits from the inner surface of the pipeline. The article proposes an approach which outlines the key characteristics of the solvents tested (rate of ARPD dissolution, cleaning efficiency, critical saturation concentration, dissolving capacity). The parameters obtained help to calculate the volume of ARPD solvent and contact time necessary to completely remove deposits from the surfaces being treated.","PeriodicalId":262860,"journal":{"name":"Pipeline Science and Technology","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124739039","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}
Pub Date : 2018-12-31DOI: 10.28999/2514-541x-2018-2-4-287-294
V. Zholobov, S. Semin
The vortex-like flow structure desired for washout of the sediment beds can be calculated using an analytical solution to the Euler formula. It is shown that using a combined vortex flow with disturbing the layer of sediment makes it possible to increase the concentration of the suspended particles, and to provide conditions for cleaning.
{"title":"Swirling flow of a perfect liquid in modelling washout of tank bottom sediments","authors":"V. Zholobov, S. Semin","doi":"10.28999/2514-541x-2018-2-4-287-294","DOIUrl":"https://doi.org/10.28999/2514-541x-2018-2-4-287-294","url":null,"abstract":"The vortex-like flow structure desired for washout of the sediment beds can be calculated using an analytical solution to the Euler formula. It is shown that using a combined vortex flow with disturbing the layer of sediment makes it possible to increase the concentration of the suspended particles, and to provide conditions for cleaning.","PeriodicalId":262860,"journal":{"name":"Pipeline Science and Technology","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130386559","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}
Pub Date : 2018-12-31DOI: 10.28999/2514-541X-2018-2-4-243-264
Yakov M. Fridlyand, S. Kutukov
ORGANISATIONAL ARRANGEMENTS TO maximise energy efficiency are traditionally afforded a great deal of attention in pipeline oil transportation. Nonetheless, as has been shown by benchmark studies conducted by the International Association of Oil Transporters, there are still significant areas of improvement for lowering energy use. One promising area involves managing the flow properties of the fluids being pumped. There are some widely known technological solutions for pumping oil with diluting agents or by heating, or using anti-turbulent or depressor additives. However, significantly less consideration is given to possibilities for optimising the compositional blend of crude oils. These blends can be formed from a range of products from different suppliers, either at main pumping stations, or during line boosting at “tie-ins” in trunk pipelines.Forming commercial batches from a blend of crude oils shows promise as a logistical and technical measure. It would require its own methodological basis in order to produce solutions using effective algorithms to manage the technological process of pumping.This article presents methodological approaches to achieving the aim of optimising the composition of crude oil batches, according to the criterion of the minimum unit energy costs for pumping. It also evaluates how sensitive power consumption is to changes in viscosity, given various oil flow parameters in the pipelines, and provides a rationale for the conditions necessary to achieve a positive operational effect. In this research, an algorithm was developed for finding optimum concentration values for batches being prepared for transport, based on analysis of a viscosity isotherm for a binary mixture of oils.This study uses the example of calculating various options for forming binary mixtures from crude stock at delivery and acceptance points of the first process section of the Usa - Ukhta trunk pipeline, in order to demonstrate the option to reduce energy consumption by 4.5%, provided planned targets are met unconditionally.
{"title":"Managing oil properties in order to optimise power consumption in trunk pipelines","authors":"Yakov M. Fridlyand, S. Kutukov","doi":"10.28999/2514-541X-2018-2-4-243-264","DOIUrl":"https://doi.org/10.28999/2514-541X-2018-2-4-243-264","url":null,"abstract":"ORGANISATIONAL ARRANGEMENTS TO maximise energy efficiency are traditionally afforded a great deal of attention in pipeline oil transportation. Nonetheless, as has been shown by benchmark studies conducted by the International Association of Oil Transporters, there are still significant areas of improvement for lowering energy use. One promising area involves managing the flow properties of the fluids being pumped. There are some widely known technological solutions for pumping oil with diluting agents or by heating, or using anti-turbulent or depressor additives. However, significantly less consideration is given to possibilities for optimising the compositional blend of crude oils. These blends can be formed from a range of products from different suppliers, either at main pumping stations, or during line boosting at “tie-ins” in trunk pipelines.Forming commercial batches from a blend of crude oils shows promise as a logistical and technical measure. It would require its own methodological basis in order to produce solutions using effective algorithms to manage the technological process of pumping.This article presents methodological approaches to achieving the aim of optimising the composition of crude oil batches, according to the criterion of the minimum unit energy costs for pumping. It also evaluates how sensitive power consumption is to changes in viscosity, given various oil flow parameters in the pipelines, and provides a rationale for the conditions necessary to achieve a positive operational effect. In this research, an algorithm was developed for finding optimum concentration values for batches being prepared for transport, based on analysis of a viscosity isotherm for a binary mixture of oils.This study uses the example of calculating various options for forming binary mixtures from crude stock at delivery and acceptance points of the first process section of the Usa - Ukhta trunk pipeline, in order to demonstrate the option to reduce energy consumption by 4.5%, provided planned targets are met unconditionally.","PeriodicalId":262860,"journal":{"name":"Pipeline Science and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122502721","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}
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