Pub Date : 2022-11-15DOI: 10.37474/0365-8554/2022-11-38-42
V. Farzaliyev, M. Aliyeva
In this work, the dependences of the retention time of organic substances (aromatic hydrocarbons, C10-C14 alkanes and n-aliphatic alcohols) at 150 oC temperature on the concentration of Apiezon L brand lubricant, and of the polar liquid phase of poly-ethylene glycol adipianate are specified. It is shown that the dependence of the corrected retention time of organic compounds (n-xylene, mesitylene, durol) for various mobile phases (nitrogen, hexane, ethyl alcohol) is almost linear. The dependence of the retention time on the boiling point of aromatic hydrocarbons at 150 oC temperature on the nature of the mobile phase (nitrogen, hexane, ethyl alcohol) and on the percentage of the polar liquid phase of polyethylene glycol adipianate (2–15 %) is linear.
{"title":"Influence of parameters of high-boiling organic compounds on the efficiency of gas-phase chromatography system","authors":"V. Farzaliyev, M. Aliyeva","doi":"10.37474/0365-8554/2022-11-38-42","DOIUrl":"https://doi.org/10.37474/0365-8554/2022-11-38-42","url":null,"abstract":"In this work, the dependences of the retention time of organic substances (aromatic hydrocarbons, C10-C14 alkanes and n-aliphatic alcohols) at 150 oC temperature on the concentration of Apiezon L brand lubricant, and of the polar liquid phase of poly-ethylene glycol adipianate are specified. It is shown that the dependence of the corrected retention time of organic compounds (n-xylene, mesitylene, durol) for various mobile phases (nitrogen, hexane, ethyl alcohol) is almost linear. The dependence of the retention time on the boiling point of aromatic hydrocarbons at 150 oC temperature on the nature of the mobile phase (nitrogen, hexane, ethyl alcohol) and on the percentage of the polar liquid phase of polyethylene glycol adipianate (2–15 %) is linear.","PeriodicalId":8668,"journal":{"name":"Azerbaijan Oil Industry","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84029682","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 : 2022-11-15DOI: 10.37474/0365-8554/2022-11-28-33
G. Ismayilov, F. Ismayilova, G.A. Zeynalova
Since the effect of phase interrelation was not considered in hydrodynamic calculations of multiphase flows, such phenomena as mass transfer and migration of the particles of dispersed phases along the cross-section of the flow are related to the hydrodynamic paradox and the calculations did not meet the requirements of engineering practice. The paper reviews the issues of the formation of structural regimes in the vertical upward multiphase flow considering the effect of phase interaction (Bernoulli principle). The speed of transfer of the particles of dispersed phase into the flow core and the factors affecting them were estimated as well.
{"title":"On formation of structural regimes in vertical multiphase flows","authors":"G. Ismayilov, F. Ismayilova, G.A. Zeynalova","doi":"10.37474/0365-8554/2022-11-28-33","DOIUrl":"https://doi.org/10.37474/0365-8554/2022-11-28-33","url":null,"abstract":"Since the effect of phase interrelation was not considered in hydrodynamic calculations of multiphase flows, such phenomena as mass transfer and migration of the particles of dispersed phases along the cross-section of the flow are related to the hydrodynamic paradox and the calculations did not meet the requirements of engineering practice. The paper reviews the issues of the formation of structural regimes in the vertical upward multiphase flow considering the effect of phase interaction (Bernoulli principle). The speed of transfer of the particles of dispersed phase into the flow core and the factors affecting them were estimated as well.","PeriodicalId":8668,"journal":{"name":"Azerbaijan Oil Industry","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74957163","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 : 2022-11-15DOI: 10.37474/0365-8554/2022-11-20-23
I. Ahmadov, S. Taghiyeva, H. Huseynov
The paper deals with the issue of the rational use of well stock via the specification of the capacity increase of production in the long-term developed fields. The distribution graph of oil by all wells has been developed based on the statistical processing using a system approach of obtained field data. The hyperbolic nature of obtained distributions indicates the irregularity of the development and operation processes of the fields. The distributions of the total oil and water production by selected output intervals have been developed and analyzed as well. Mathematic models of obtained distribution functions have been specified. The results of studies carried out enable us to estimate the theoretic production capacity of reviewed well stock.
{"title":"Estimation of theoretical production capacity of long-term operated well stock","authors":"I. Ahmadov, S. Taghiyeva, H. Huseynov","doi":"10.37474/0365-8554/2022-11-20-23","DOIUrl":"https://doi.org/10.37474/0365-8554/2022-11-20-23","url":null,"abstract":"The paper deals with the issue of the rational use of well stock via the specification of the capacity increase of production in the long-term developed fields. The distribution graph of oil by all wells has been developed based on the statistical processing using a system approach of obtained field data. The hyperbolic nature of obtained distributions indicates the irregularity of the development and operation processes of the fields. The distributions of the total oil and water production by selected output intervals have been developed and analyzed as well. Mathematic models of obtained distribution functions have been specified. The results of studies carried out enable us to estimate the theoretic production capacity of reviewed well stock.","PeriodicalId":8668,"journal":{"name":"Azerbaijan Oil Industry","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90513089","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 : 2022-10-15DOI: 10.37474/0365-8554/2022-10-47-52
I. H. Melikova
The process of oxidation of toluene, chlorotoluene and chlorobenzene is studied and the optimum parameters for successful implementation of the synthesis modeling industrial processes selected as well. The results obtained in catalytic oxidation of toluene, chlorotoluene and chlorobenzene justify that Ag/MnO2 based catalytic systems have high activeness. Mentioned hydrothermal synthesized catalyst keeps its activeness and properties during the reaction of transition of compounds of toluene, chlorotoluene and chlorobenzene. In the presence of catalysts with Ag/MnO2 nanoparticles, the reaction runs with high percent (90 %) of conversion. The activeness of the catalyst in conversion process of these compounds is optimal with 8000 s-1 volume rate. The optimum temperature for high activeness of toluene, chlorotoluene and chlorobenzene is equal to 543, 490 and 658 К correspondingly. According to the results of analysis on the effect of the components and particles size of catalysts on its activeness, the systems are active in high conversion of the components of Ag/MnO2 + Mn, R-Ag/MnO2 + Ag, R-Ag/MnO2 + Al. These systems containing nanoparticles have high catalytic activeness as well.
{"title":"Oxidation of chlorotoluene, toluene and chlorobenzene in the presence of Ag/MnO2 catalyst","authors":"I. H. Melikova","doi":"10.37474/0365-8554/2022-10-47-52","DOIUrl":"https://doi.org/10.37474/0365-8554/2022-10-47-52","url":null,"abstract":"The process of oxidation of toluene, chlorotoluene and chlorobenzene is studied and the optimum parameters for successful implementation of the synthesis modeling industrial processes selected as well. The results obtained in catalytic oxidation of toluene, chlorotoluene and chlorobenzene justify that Ag/MnO2 based catalytic systems have high activeness. Mentioned hydrothermal synthesized catalyst keeps its activeness and properties during the reaction of transition of compounds of toluene, chlorotoluene and chlorobenzene. In the presence of catalysts with Ag/MnO2 nanoparticles, the reaction runs with high percent (90 %) of conversion. The activeness of the catalyst in conversion process of these compounds is optimal with 8000 s-1 volume rate. The optimum temperature for high activeness of toluene, chlorotoluene and chlorobenzene is equal to 543, 490 and 658 К correspondingly. According to the results of analysis on the effect of the components and particles size of catalysts on its activeness, the systems are active in high conversion of the components of Ag/MnO2 + Mn, R-Ag/MnO2 + Ag, R-Ag/MnO2 + Al. These systems containing nanoparticles have high catalytic activeness as well.","PeriodicalId":8668,"journal":{"name":"Azerbaijan Oil Industry","volume":"955 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74372859","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 : 2022-10-15DOI: 10.37474/0365-8554/2022-10-29-35
Y. Ahmadov, I.G. Huseynov, Sh.I. Mustafayev, A.T. Ismailova
A method of immediate estimation of technical state and possibilities of further operation of offshore oil-gas hydrotechnical facilities is suggested. Predictive capability of suggested technique is described through the implementation on the structure of a specific deep-water jacket in “Guneshli” field.
{"title":"Method of immediate control on technical state of offshore facilities","authors":"Y. Ahmadov, I.G. Huseynov, Sh.I. Mustafayev, A.T. Ismailova","doi":"10.37474/0365-8554/2022-10-29-35","DOIUrl":"https://doi.org/10.37474/0365-8554/2022-10-29-35","url":null,"abstract":"A method of immediate estimation of technical state and possibilities of further operation of offshore oil-gas hydrotechnical facilities is suggested. Predictive capability of suggested technique is described through the implementation on the structure of a specific deep-water jacket in “Guneshli” field.","PeriodicalId":8668,"journal":{"name":"Azerbaijan Oil Industry","volume":"113 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84900991","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 : 2022-10-15DOI: 10.37474/0365-8554/2022-10-53-59
E. Aliyev
The speed of development of human society for the last fifty years threatens to lead the Earth and environment to a catastrophe. The development we observe today did not always exist. About four thousand years ago a human lived in a comparative harmony with the environment and did not harm it. However, as the human being developed and the tools he used advanced, the negative impact of human activity on the environment significantly increased. The mankind replied to this challenge – it developed and implemented environmental laws, norms and standards. Nevertheless, a great deal of rules could not prevent the damage on the environment due to the reasons reviewed in the paper. Thus, the author says, there is a significant mission before the humanity, which should be implemented by 2030. The mission consists of the decrease of harmful impact of human activity and environmental protection as well. Moreover, the author supposes that the laws of environment can play a significant role in support of this mission. He divides the theme into key aspects and reviews them. As a result, the paper studies the legal fundamentals of environmental laws and the ways of their introduction. The proportional spaces and global issues of environmental laws; their fragmental structure, poor attention to the environmental problems, the absence of efficient legal enforcement are just few of them. The paper generalizes the body of knowledge associated with the models of observance of environmental standards. Besides, the issues of legal enforcement, which various countries experience are discussed from a global point of view. In conclusion, the author suggests the views of how to support the observance of environmental norm.
{"title":"The difficulties in achievement of observance of environmental standards: legal enforcement and stability","authors":"E. Aliyev","doi":"10.37474/0365-8554/2022-10-53-59","DOIUrl":"https://doi.org/10.37474/0365-8554/2022-10-53-59","url":null,"abstract":"The speed of development of human society for the last fifty years threatens to lead the Earth and environment to a catastrophe. The development we observe today did not always exist. About four thousand years ago a human lived in a comparative harmony with the environment and did not harm it. However, as the human being developed and the tools he used advanced, the negative impact of human activity on the environment significantly increased. The mankind replied to this challenge – it developed and implemented environmental laws, norms and standards. Nevertheless, a great deal of rules could not prevent the damage on the environment due to the reasons reviewed in the paper. Thus, the author says, there is a significant mission before the humanity, which should be implemented by 2030. The mission consists of the decrease of harmful impact of human activity and environmental protection as well. Moreover, the author supposes that the laws of environment can play a significant role in support of this mission. He divides the theme into key aspects and reviews them. As a result, the paper studies the legal fundamentals of environmental laws and the ways of their introduction. The proportional spaces and global issues of environmental laws; their fragmental structure, poor attention to the environmental problems, the absence of efficient legal enforcement are just few of them. The paper generalizes the body of knowledge associated with the models of observance of environmental standards. Besides, the issues of legal enforcement, which various countries experience are discussed from a global point of view. In conclusion, the author suggests the views of how to support the observance of environmental norm.","PeriodicalId":8668,"journal":{"name":"Azerbaijan Oil Industry","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80908934","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 : 2022-10-15DOI: 10.37474/0365-8554/2022-10-60-64
M.E. Shahlarly
The subsea pipelines play a significant role in secure transportation of oil, gas and other energetic resources from the seabed to the shore and bases. The research of the hydrodynamic forces in the subsea pipelines and risers is a key factor from the point of view of regularity and efficiency of technological processes. The paper studies the impact of hydrodynamic forces affecting the subsea pipelines in the Caspian Sea. For diameter and thickness of pipe wall selected according to the ASME B36.10 standard, the forces of wind, wave and current, as well as the combination of forces affecting it were studied. The research was carried out in SACS computer software for three cases; as a result, the simulation and a table of force combinations for the optimum and unwanted occurrences appearing due to the impact of hydrodynamic forces and load combination were developed.
{"title":"The study of hydrodynamic forces effecting submarine riser in 300 m depth in the Caspian Sea","authors":"M.E. Shahlarly","doi":"10.37474/0365-8554/2022-10-60-64","DOIUrl":"https://doi.org/10.37474/0365-8554/2022-10-60-64","url":null,"abstract":"The subsea pipelines play a significant role in secure transportation of oil, gas and other energetic resources from the seabed to the shore and bases. The research of the hydrodynamic forces in the subsea pipelines and risers is a key factor from the point of view of regularity and efficiency of technological processes. The paper studies the impact of hydrodynamic forces affecting the subsea pipelines in the Caspian Sea. For diameter and thickness of pipe wall selected according to the ASME B36.10 standard, the forces of wind, wave and current, as well as the combination of forces affecting it were studied. The research was carried out in SACS computer software for three cases; as a result, the simulation and a table of force combinations for the optimum and unwanted occurrences appearing due to the impact of hydrodynamic forces and load combination were developed.","PeriodicalId":8668,"journal":{"name":"Azerbaijan Oil Industry","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75083951","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 : 2022-10-15DOI: 10.37474/0365-8554/2022-10-4-9
H.I. Shekerov, J. Abbasov
Alongside the geological-geophysical characteristics of the fields being developed and explored, the calculation of hydrocarbon reserves, the modeling of the fields, as well as the specification and direction of a new exploration are of great importance with regard to the study of their reservoir parameters. With this purpose, the geological-geophysical studies carried out in the anticline belt of Sangachal-deniz–Bulla-deniz, and the data of samples of subsurface rocks from well intervals have been analyzed as well. The changes in reservoir parameters of the rocks of various granulometric content in the anticline zone have been investigated and the graphs of parameters depending on the depth have been developed. The studies justify that the sand and sand deposits keep their reservoir parameters even in comparatively large depths. These characteristics indicate the presence of favorable litofacies and structural-petrographic conditions for the accumulation of oil and gas reserves in deep sections.
{"title":"The study of reservoir parameters of subsurface rocks based on the core data of anticline belt of Sangachal-deniz–Bulla-deniz","authors":"H.I. Shekerov, J. Abbasov","doi":"10.37474/0365-8554/2022-10-4-9","DOIUrl":"https://doi.org/10.37474/0365-8554/2022-10-4-9","url":null,"abstract":"Alongside the geological-geophysical characteristics of the fields being developed and explored, the calculation of hydrocarbon reserves, the modeling of the fields, as well as the specification and direction of a new exploration are of great importance with regard to the study of their reservoir parameters. With this purpose, the geological-geophysical studies carried out in the anticline belt of Sangachal-deniz–Bulla-deniz, and the data of samples of subsurface rocks from well intervals have been analyzed as well. The changes in reservoir parameters of the rocks of various granulometric content in the anticline zone have been investigated and the graphs of parameters depending on the depth have been developed. The studies justify that the sand and sand deposits keep their reservoir parameters even in comparatively large depths. These characteristics indicate the presence of favorable litofacies and structural-petrographic conditions for the accumulation of oil and gas reserves in deep sections.","PeriodicalId":8668,"journal":{"name":"Azerbaijan Oil Industry","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85929479","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 : 2022-10-15DOI: 10.37474/0365-8554/2022-10-23-28
N.A. Veliyev, K. K. Mehdiyev, N.B. Khaligov, N.Ya. Ismailzade, Sh.Sh. Kazimova, A.H. Gayibova
The paper reviews the damage effect of aggressive medium occurring as a result of sea water injection for the maintenance of reservoir pressure and production in Neft Dashlary field, which is in a long-term development, as well as the treatment of bottomhole zone with various agents, biological contamination and hydrogen sulphide (H2S) arising due to the bacterial activity on the works towards the consolidation of well bottomhole zone. Depending on the contact degree of cement stone with aggressive medium its corrosion probability is defined. Corrosion activity increases fast when well product contains small amount of H2S gas. According to the gas law, the gas solubility in fluids including in water is in direct proportion to the pressure. Small amount of H2S gas in produced water has a great effect on corrosion activity. On the basis of the studies of rock-operation data, it was specified that the degree of the consolidation of well bottomhole zone carried out in the well of IX horizons and Low Kirmaki suite is inversely proportional to the amount of H2S. Thus, in the zones with great amount of H2S, the efficiency degree is low, and in the zones with small amount – high. These zones and the efficiency degree are reflected in the current maps of development of IX horizon and Low Kirmaki suite of the field.
{"title":"The study of the effect of flooding process in Neft Dashlary field on parameters of aggressive medium","authors":"N.A. Veliyev, K. K. Mehdiyev, N.B. Khaligov, N.Ya. Ismailzade, Sh.Sh. Kazimova, A.H. Gayibova","doi":"10.37474/0365-8554/2022-10-23-28","DOIUrl":"https://doi.org/10.37474/0365-8554/2022-10-23-28","url":null,"abstract":"The paper reviews the damage effect of aggressive medium occurring as a result of sea water injection for the maintenance of reservoir pressure and production in Neft Dashlary field, which is in a long-term development, as well as the treatment of bottomhole zone with various agents, biological contamination and hydrogen sulphide (H2S) arising due to the bacterial activity on the works towards the consolidation of well bottomhole zone. Depending on the contact degree of cement stone with aggressive medium its corrosion probability is defined. Corrosion activity increases fast when well product contains small amount of H2S gas. According to the gas law, the gas solubility in fluids including in water is in direct proportion to the pressure. Small amount of H2S gas in produced water has a great effect on corrosion activity. On the basis of the studies of rock-operation data, it was specified that the degree of the consolidation of well bottomhole zone carried out in the well of IX horizons and Low Kirmaki suite is inversely proportional to the amount of H2S. Thus, in the zones with great amount of H2S, the efficiency degree is low, and in the zones with small amount – high. These zones and the efficiency degree are reflected in the current maps of development of IX horizon and Low Kirmaki suite of the field.","PeriodicalId":8668,"journal":{"name":"Azerbaijan Oil Industry","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87402386","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 : 2022-10-15DOI: 10.37474/0365-8554/2022-10-36-40
E. Shahbazov, A. Guvalov
The effect of nanoparticles of nanosilica on the characteristics of the systems of cement-sand-water is studied. In the studies, 50–110 nm nanoparticles obtained through the separation of nanosilica from the soluble glass using the method of sol-gel were applied. The characteristics of solid samples were measured after their hardening during 3-28 days. The effect of nanoadditive on the density, speed of accumulation of final durability of cement samples in squeezing was defined. Obtained results on the increase of durability in squeezing of solid cement samples should be explained with the effect of nanostructuring achieved with adding nanoparticles of silica. These particles are characterized with high specific surface and its high physical-chemical activity. It is shown that due to the effect of surface of silica nanoparticles, hydration speed of cement rises and direct formation of ordered permolecular structures of hydrates of calcium silicate structuring the cement matrix and improving its hardness occurs. The results may be applied in construction technologies for the structuring of cement materials and improving their characteristics as well: durability, density, water permeability, cold resistance.
{"title":"The study of nanosilica in cement base materials","authors":"E. Shahbazov, A. Guvalov","doi":"10.37474/0365-8554/2022-10-36-40","DOIUrl":"https://doi.org/10.37474/0365-8554/2022-10-36-40","url":null,"abstract":"The effect of nanoparticles of nanosilica on the characteristics of the systems of cement-sand-water is studied. In the studies, 50–110 nm nanoparticles obtained through the separation of nanosilica from the soluble glass using the method of sol-gel were applied. The characteristics of solid samples were measured after their hardening during 3-28 days. The effect of nanoadditive on the density, speed of accumulation of final durability of cement samples in squeezing was defined. Obtained results on the increase of durability in squeezing of solid cement samples should be explained with the effect of nanostructuring achieved with adding nanoparticles of silica. These particles are characterized with high specific surface and its high physical-chemical activity. It is shown that due to the effect of surface of silica nanoparticles, hydration speed of cement rises and direct formation of ordered permolecular structures of hydrates of calcium silicate structuring the cement matrix and improving its hardness occurs. The results may be applied in construction technologies for the structuring of cement materials and improving their characteristics as well: durability, density, water permeability, cold resistance.","PeriodicalId":8668,"journal":{"name":"Azerbaijan Oil Industry","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76910306","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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