N. Gerasimova, T. V. Cheshkova, R. S. Min, T. A. Sagachenko
Resins extracted from heavy high-viscous oil of the Nurlat oilfield were investigated. The composition of fragments bound through sulphide and ether bridges in the molecules of initial resins and the liquid products of their conversion at 450 °C under the conditions of laboratory experiment was studied using a set of physicochemical methods (IR spectroscopy, UV spectroscopy, gas chromatography - mass spectrometry, chemical destruction). It is shown that the fragments undergoing destruction are mainly those bound in the structure of the initial sample through the least thermally stable functional groups of esters and aliphatic sulphides. Sulphur- and ether-bound compounds in the structure of both resin samples are represented by n-alkanes, n-alkylcyclopentanes, n-alkylcyclohexanes and hopanes. The presence of nickel porphyrins was established among the sulphur-bound compounds. It is the molecular composition of bound n-alkanes that changes most noticeably during thermolysis. Ether bond cleavage in the molecules of secondary resins leads to the formation of products containing mono- and dibromides of alkyl biphenyls. This fact provides evidence that these aromatic compounds are present in resins in the form of fragments bound with other structural fragments through one and two ether bridges.
对从努尔拉特油田重质高粘度石油中提取的树脂进行了研究。使用一套物理化学方法（红外光谱法、紫外光谱法、气相色谱-质谱法、化学破坏法）研究了在实验室实验条件下，通过硫化桥和醚桥结合在初始树脂分子中的碎片及其在 450 °C 下转化的液体产物的组成。结果表明，发生破坏的碎片主要是那些通过酯类和脂肪族硫化物等热稳定性最差的官能团与初始样品结构结合的碎片。两种树脂样品结构中与硫和醚结合的化合物包括正烷烃、正烷基环戊烷、正烷基环己烷和合烷。在硫结合化合物中发现了卟啉镍。热解过程中变化最明显的是结合正烷烃的分子组成。二次树脂分子中的醚键裂解会形成含有烷基联苯单溴化物和二溴化物的产物。这一事实证明，这些芳香族化合物是以通过一个和两个醚桥与其他结构片段结合的片段形式存在于树脂中的。
{"title":"STRUCTURAL TRANSFORMATIONS OF HEAVY OIL RESINS FROM THE NURLAT OILFIELD UNDER THERMAL ACTION","authors":"N. Gerasimova, T. V. Cheshkova, R. S. Min, T. A. Sagachenko","doi":"10.15372/csd2024540","DOIUrl":"https://doi.org/10.15372/csd2024540","url":null,"abstract":"Resins extracted from heavy high-viscous oil of the Nurlat oilfield were investigated. The composition of fragments bound through sulphide and ether bridges in the molecules of initial resins and the liquid products of their conversion at 450 °C under the conditions of laboratory experiment was studied using a set of physicochemical methods (IR spectroscopy, UV spectroscopy, gas chromatography - mass spectrometry, chemical destruction). It is shown that the fragments undergoing destruction are mainly those bound in the structure of the initial sample through the least thermally stable functional groups of esters and aliphatic sulphides. Sulphur- and ether-bound compounds in the structure of both resin samples are represented by n-alkanes, n-alkylcyclopentanes, n-alkylcyclohexanes and hopanes. The presence of nickel porphyrins was established among the sulphur-bound compounds. It is the molecular composition of bound n-alkanes that changes most noticeably during thermolysis. Ether bond cleavage in the molecules of secondary resins leads to the formation of products containing mono- and dibromides of alkyl biphenyls. This fact provides evidence that these aromatic compounds are present in resins in the form of fragments bound with other structural fragments through one and two ether bridges.","PeriodicalId":44968,"journal":{"name":"Chemistry for Sustainable Development","volume":"8 9","pages":""},"PeriodicalIF":0.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141343362","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}
The dynamics of the composition of biomolecules in the leaves of Caragana arborescens and Sorbus aucuparia shrubs, typical of the South taiga natural climatic zone, was studied by gas chromatography - mass spectrometry in the process of post-pyrogenic restoration at the territory the Golovina village, the Tomsk Region, 3 months, 1 year and 2 years after the fire event. Acyclic organic compounds have been identified: n-alkanes, fatty acids, n-alkane-2-ones, aldehydes, n-alkanols. The long-chain saturated alcohol 10-nonacosanol was found in the leaves of Sorbus aucuparia. Aliphatic diterpenoids phytone and the isomers of phytol, triterpene squalene, as well as naphthenoaromatic compounds vitamin E (tocopherol) and vitamin K1 (phytanodione) were detected among isoprenoid structures in the leaves of S. aucuparia, increased phytol and fatty acid levels are observed in the leaves of S. aucuparia 3 months and 1 year after the fire event, and then the concentrations of these compounds decrease to background values after 2 years. Squalene content in the leaves of S. aucuparia, which decreased as a result of the fire event, increased sharply the following year, and after 2 years, it still remained at a level significantly higher than the background. The fire had the greatest impact on the long-chain alcohol 10-nonacosanol, which was detected in large amounts in the leaves of S. aucuparia. As a result of the fire, there is a drop in its content to trace amounts, followed by a slight increase the following year and an abrupt increase up to background values after 2 years. During the two-year-long post-pyrogenic restoration, changes in the molecular mass distribution of acyclic compounds are observed. The leaves of S. aucuparia, sampled 3 months and the following year after the fire, exhibited a shift from higher molecular homologues to less higher molecular n-alkanes and n-aldehydes in comparison with the leaves from background sites, while the corresponding shift observed in C. arborescens related to n-alkane-2-ones. The distribution of acyclic compounds in the post-pyrogenic area approaches the background level 2 years after the fire.
{"title":"DYNAMICS OF TWO-YEAR POST-PYROGENIC RESTORATION OF THE COMPOSITION OF BIOMOLECULES IN SHRUBS IN THE SOUTHERN TAIGA OF THE TOMSK REGION","authors":" V. RUSSKIKH I, B. STRELNIKOVA E","doi":"10.15372/csd2024547","DOIUrl":"https://doi.org/10.15372/csd2024547","url":null,"abstract":"The dynamics of the composition of biomolecules in the leaves of Caragana arborescens and Sorbus aucuparia shrubs, typical of the South taiga natural climatic zone, was studied by gas chromatography - mass spectrometry in the process of post-pyrogenic restoration at the territory the Golovina village, the Tomsk Region, 3 months, 1 year and 2 years after the fire event. Acyclic organic compounds have been identified: n-alkanes, fatty acids, n-alkane-2-ones, aldehydes, n-alkanols. The long-chain saturated alcohol 10-nonacosanol was found in the leaves of Sorbus aucuparia. Aliphatic diterpenoids phytone and the isomers of phytol, triterpene squalene, as well as naphthenoaromatic compounds vitamin E (tocopherol) and vitamin K1 (phytanodione) were detected among isoprenoid structures in the leaves of S. aucuparia, increased phytol and fatty acid levels are observed in the leaves of S. aucuparia 3 months and 1 year after the fire event, and then the concentrations of these compounds decrease to background values after 2 years. Squalene content in the leaves of S. aucuparia, which decreased as a result of the fire event, increased sharply the following year, and after 2 years, it still remained at a level significantly higher than the background. The fire had the greatest impact on the long-chain alcohol 10-nonacosanol, which was detected in large amounts in the leaves of S. aucuparia. As a result of the fire, there is a drop in its content to trace amounts, followed by a slight increase the following year and an abrupt increase up to background values after 2 years. During the two-year-long post-pyrogenic restoration, changes in the molecular mass distribution of acyclic compounds are observed. The leaves of S. aucuparia, sampled 3 months and the following year after the fire, exhibited a shift from higher molecular homologues to less higher molecular n-alkanes and n-aldehydes in comparison with the leaves from background sites, while the corresponding shift observed in C. arborescens related to n-alkane-2-ones. The distribution of acyclic compounds in the post-pyrogenic area approaches the background level 2 years after the fire.","PeriodicalId":44968,"journal":{"name":"Chemistry for Sustainable Development","volume":"24 10","pages":""},"PeriodicalIF":0.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141342722","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}
N. ALEKSEEVA M, V. FEDOROV D, V. RUSSKIKH I, G. YASHCHENKO I
The fields of pollutant dispersion in the air from three operating flare installations at the territory of the Mamontovskoye field in the Nefteyugansk District of the Khanty-Mansi Autonomous Territory were modelled on the basis of climatic data and technological parameters of flare installations. The amounts of pollutants entering the atmosphere from associated petroleum gas combustion were calculated: carbon monoxide (CO) - 83 %, nitrogen dioxide (NO2) - 0.7 %, soot - 10 %, methane - 6 %. The vegetation cover was mapped relying on the Sentinel-2 satellite image with the shooting date of June 14, 2021, displaying dispersion fields for СО, NO2 and soot. The distances from emission source (flare installation) to isolines with CO and soot concentrations equal to 1 MPCst (5 and 0.15 mg/m3) are 163 and 505 m, respectively (here MPCst is the maximum permissible concentration for short-term exposure level). Similarly, measured distance to the isoline with NO2 concentration 0.1 MPCst concentration (0.02 mg/m3) is 284 m. On average, CO concentration decreases by 1 mg/m3 at a distance of 86 m and becomes equal to 0.2 mg/m3 (0.04 MPCst) at a distance of about 572 m. The resulting model for CO dispersion does not contradict MERRA-2 satellite data, according to which the concentration of CO in the vicinity of the flare installation was 0.2 mg/m3. The gas chromatographic - mass spectrometric analysis of soil samples and plants collected to the north-east from the flare installation at a distance of 216, 486, 710, 1037 and 1380 m has shown that aliphatic hydrocarbons prevail in the composition of soil organic matter. Their content varies from 50 to 80 % of all identified compounds, with the predominance of high-molecular homologues (C27-C33). The maximum total amount of n-alkanes (75.3 μg/g) was detected in the soil sample taken at a distance of 710 m from the flare installation. In the organic matter of pine needles and blueberry leaves, C27 homologue dominates, and C25, C29, C31 characteristic of terrestrial vegetation are present. In addition, polyaromatic compounds were identified in the soil: anthracene/phenanthrene, fluoranthene and pyrene.
{"title":"MODELLING THE FIELDS OF POLLUTANT DISPERSION IN THE ATMOSPHERE FROM FLARES","authors":" N. ALEKSEEVA M, V. FEDOROV D, V. RUSSKIKH I, G. YASHCHENKO I","doi":"10.15372/csd2024537","DOIUrl":"https://doi.org/10.15372/csd2024537","url":null,"abstract":"The fields of pollutant dispersion in the air from three operating flare installations at the territory of the Mamontovskoye field in the Nefteyugansk District of the Khanty-Mansi Autonomous Territory were modelled on the basis of climatic data and technological parameters of flare installations. The amounts of pollutants entering the atmosphere from associated petroleum gas combustion were calculated: carbon monoxide (CO) - 83 %, nitrogen dioxide (NO2) - 0.7 %, soot - 10 %, methane - 6 %. The vegetation cover was mapped relying on the Sentinel-2 satellite image with the shooting date of June 14, 2021, displaying dispersion fields for СО, NO2 and soot. The distances from emission source (flare installation) to isolines with CO and soot concentrations equal to 1 MPCst (5 and 0.15 mg/m3) are 163 and 505 m, respectively (here MPCst is the maximum permissible concentration for short-term exposure level). Similarly, measured distance to the isoline with NO2 concentration 0.1 MPCst concentration (0.02 mg/m3) is 284 m. On average, CO concentration decreases by 1 mg/m3 at a distance of 86 m and becomes equal to 0.2 mg/m3 (0.04 MPCst) at a distance of about 572 m. The resulting model for CO dispersion does not contradict MERRA-2 satellite data, according to which the concentration of CO in the vicinity of the flare installation was 0.2 mg/m3. The gas chromatographic - mass spectrometric analysis of soil samples and plants collected to the north-east from the flare installation at a distance of 216, 486, 710, 1037 and 1380 m has shown that aliphatic hydrocarbons prevail in the composition of soil organic matter. Their content varies from 50 to 80 % of all identified compounds, with the predominance of high-molecular homologues (C27-C33). The maximum total amount of n-alkanes (75.3 μg/g) was detected in the soil sample taken at a distance of 710 m from the flare installation. In the organic matter of pine needles and blueberry leaves, C27 homologue dominates, and C25, C29, C31 characteristic of terrestrial vegetation are present. In addition, polyaromatic compounds were identified in the soil: anthracene/phenanthrene, fluoranthene and pyrene.","PeriodicalId":44968,"journal":{"name":"Chemistry for Sustainable Development","volume":"28 12","pages":""},"PeriodicalIF":0.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141338927","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}
S. KOZHEVNIKOV I, V. BOGOSLOVSKII A, K. ALTUNINA L
The results of rheological measurements of a low-temperature composition based on inorganic components developed at the Institute of Petroleum Chemistry SB RAS (GALKA®) are presented. The studies were carried out with a Haake Viscotester IQ rheometer using CC25 geometry (oscillation mode at a frequency of 1 Hz) at different temperatures. The amplitude test determined the range of strain and stress amplitude values corresponding to the range of linear viscoelasticity. For a given value of the deformation amplitude from the range of linear viscoelasticity, the dependences of the complex viscosity modulus (|η*|), the elastic modulus (storage modulus, G´), and the viscosity modulus (loss modulus, G´´) on time were recorded at a temperature of 38, 30, and 20 °С. The kinetics of the gel formation process was characterized, the maximum strength of the formed structure was estimated from the maximal elastic modulus, the time of its formation and the starting points of gelation were determined.
{"title":"RHEOLOGICAL PROPERTIES OF A LOW-TEMPERATURE GEL-FORMING COMPOSITION BASED ON INORGANIC COMPONENTS","authors":" S. KOZHEVNIKOV I, V. BOGOSLOVSKII A, K. ALTUNINA L","doi":"10.15372/csd2024542","DOIUrl":"https://doi.org/10.15372/csd2024542","url":null,"abstract":"The results of rheological measurements of a low-temperature composition based on inorganic components developed at the Institute of Petroleum Chemistry SB RAS (GALKA®) are presented. The studies were carried out with a Haake Viscotester IQ rheometer using CC25 geometry (oscillation mode at a frequency of 1 Hz) at different temperatures. The amplitude test determined the range of strain and stress amplitude values corresponding to the range of linear viscoelasticity. For a given value of the deformation amplitude from the range of linear viscoelasticity, the dependences of the complex viscosity modulus (|η*|), the elastic modulus (storage modulus, G´), and the viscosity modulus (loss modulus, G´´) on time were recorded at a temperature of 38, 30, and 20 °С. The kinetics of the gel formation process was characterized, the maximum strength of the formed structure was estimated from the maximal elastic modulus, the time of its formation and the starting points of gelation were determined.","PeriodicalId":44968,"journal":{"name":"Chemistry for Sustainable Development","volume":"41 28","pages":""},"PeriodicalIF":0.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141339785","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. MUKHORTINA N, V. SEREBRENNIKOVA O, A. KRASNOYAROVA N
Laboratory modelling of oil pollution of water bodies was carried out using the diesel fuel - water - mineral phase system. The content and composition of organic compounds in each of the parts making up the system were studied using gas chromatography-mass spectrometry. The trends of changes in the composition of n-alkanes, polycyclic aromatic and naphthenic hydrocarbons, cyclohexanes, alkylbenzenes and trimethylalkylbenzenes present in diesel fuel during the transition from diesel fuel to the aqueous and mineral phases have been revealed.
{"title":"MODELLING THE CONTACT OF OIL SYSTEMS WITH NATURAL WATER BODIES","authors":" A. MUKHORTINA N, V. SEREBRENNIKOVA O, A. KRASNOYAROVA N","doi":"10.15372/csd2024544","DOIUrl":"https://doi.org/10.15372/csd2024544","url":null,"abstract":"Laboratory modelling of oil pollution of water bodies was carried out using the diesel fuel - water - mineral phase system. The content and composition of organic compounds in each of the parts making up the system were studied using gas chromatography-mass spectrometry. The trends of changes in the composition of n-alkanes, polycyclic aromatic and naphthenic hydrocarbons, cyclohexanes, alkylbenzenes and trimethylalkylbenzenes present in diesel fuel during the transition from diesel fuel to the aqueous and mineral phases have been revealed.","PeriodicalId":44968,"journal":{"name":"Chemistry for Sustainable Development","volume":"18 20","pages":""},"PeriodicalIF":0.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141340940","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}
V. KOZLOV V, R. SHOLIDODOV M, K. ALTUNINA L, A. KUVSHINOV V, A. STASYEVA L, R. SAIDENTSAL A
A composition characterised by adjustable physicochemical parameters within a broad range has been developed relying on the results of studies of the phase equilibria in the ternary system of deep eutectic solvents (DES) glycerol - carbamide - boric acid. The effect of this composition on oil recovery enhancement is studied, and results obtained in the laboratory studies of the effect of DES-based composition on the filtration characteristics of a heterogeneous formation in the carbonate reservoir of the Usinsk field are presented. The efficiency of the composition for oilfields at the early and late stages of development has been assessed by physical modelling. The treatment of a model of a heterogeneous reservoir with the composition is determined to cause a substantial increase in oil displacement coefficient at either low or high temperatures due to equalisation of filtration flows, an increase in reservoir coverage, and restoration of initial permeability. Investigation of the composition and properties of heavy high-viscosity oil before and after treatment with the composition shows that the application of DES-based acid composition does not affect the qualitative composition of oil. The use of the composition leads mainly to redistribution of the content of low- and high-molecular structures: predominantly light occluded hydrocarbons are displaced, while heavy oil components are adsorbed on the reservoir.
根据对深层共晶溶剂（DES）甘油-碳酰胺-硼酸三元体系中相平衡的研究结果，开发了一种物理化学参数可在较大范围内调节的组合物。研究了这种组合物对提高石油采收率的影响，并介绍了基于 DES 的组合物对乌申斯克油田碳酸盐岩储层中异质地层过滤特性影响的实验室研究结果。通过物理建模评估了组合物对处于开发早期和晚期阶段的油田的效率。使用该成分处理异质储层模型，由于过滤流量均衡、储层覆盖率增加和初始渗透率恢复，在低温或高温条件下均可大幅提高石油置换系数。对使用该组合物处理前后的高粘度重油成分和性质的调查表明，使用基于 DES 的酸组合物不会影响油的质量成分。组合物的使用主要导致低分子结构和高分子结构含量的重新分配：主要是轻质闭塞碳氢化合物被取代，而重油成分被吸附在储层上。
{"title":"ACID COMPOSITION BASED ON DEEP EUTECTIC SOLVENTS FOR DISPLACING HEAVY OIL","authors":" V. KOZLOV V, R. SHOLIDODOV M, K. ALTUNINA L, A. KUVSHINOV V, A. STASYEVA L, R. SAIDENTSAL A","doi":"10.15372/csd2024543","DOIUrl":"https://doi.org/10.15372/csd2024543","url":null,"abstract":"A composition characterised by adjustable physicochemical parameters within a broad range has been developed relying on the results of studies of the phase equilibria in the ternary system of deep eutectic solvents (DES) glycerol - carbamide - boric acid. The effect of this composition on oil recovery enhancement is studied, and results obtained in the laboratory studies of the effect of DES-based composition on the filtration characteristics of a heterogeneous formation in the carbonate reservoir of the Usinsk field are presented. The efficiency of the composition for oilfields at the early and late stages of development has been assessed by physical modelling. The treatment of a model of a heterogeneous reservoir with the composition is determined to cause a substantial increase in oil displacement coefficient at either low or high temperatures due to equalisation of filtration flows, an increase in reservoir coverage, and restoration of initial permeability. Investigation of the composition and properties of heavy high-viscosity oil before and after treatment with the composition shows that the application of DES-based acid composition does not affect the qualitative composition of oil. The use of the composition leads mainly to redistribution of the content of low- and high-molecular structures: predominantly light occluded hydrocarbons are displaced, while heavy oil components are adsorbed on the reservoir.","PeriodicalId":44968,"journal":{"name":"Chemistry for Sustainable Development","volume":"26 24","pages":""},"PeriodicalIF":0.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141342698","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}
Using information from the database of the Institute of Petroleum Chemistry SB RAS and the methods of statistical and spatial analysis of geographical information systems, we evaluated the data on oil occurrence conditions in the Bazhenov, Domanik and Kuonamka Formations of the oil and gas bearing territories of Russia, the development of which will allow discovering the new sources of increased oil production. The digital maps of the arrangement of hydrocarbon fields in the Bazhenov, Domanik and Kuonamka sediments over the territories of the Volga-Ural, Timan-Pechora and Lena-Tunguska oil and gas bearing basins are presented. The distribution of oils from these deposits over the depth of occurrence in each basin is shown. The lithological features of reservoir rocks are established. The average values of reservoir parameters characterising the filtration and capacitance properties of the pools in these sediments are determined. To analyse the conditions of Bazhenov oil occurrence, a batch of 2833 oil samples from 127 fields of the West Siberian basin was used, for Domanik oil - 407 samples from 195 fields of the Volga-Ural and Timan-Pechora basins, and for Kuonamka oil - 117 samples from 28 fields of the Lena-Tunguska basin. A comparative analysis of the geological and physical characteristics producing a direct impact on the development regime and the effectiveness of technologies used to extract these hard-to-recover oils was carried out: permeability and porosity of rocks, reservoir temperature and pressure. It is shown that the Domanik and Kuonamka sediments are the closest in characteristics to the reservoirs of the developed American shale oil fields, which indicates the possibility for effective application of the positive experience of the United States for Russian oilfields. The results of the study can be used in the development of new and improvement of existing methods and technologies for the extraction and processing of hard-to-recover oils from the studied sediments.
{"title":"FEATURES OF OCCURRENCE CONDITIONS OF THE BAZHENOV, DOMANIK AND KUONAMKA SEDIMENTS IN OIL AND GAS BASINS OF RUSSIA","authors":" G. YASHCHENKO I","doi":"10.15372/csd2024552","DOIUrl":"https://doi.org/10.15372/csd2024552","url":null,"abstract":"Using information from the database of the Institute of Petroleum Chemistry SB RAS and the methods of statistical and spatial analysis of geographical information systems, we evaluated the data on oil occurrence conditions in the Bazhenov, Domanik and Kuonamka Formations of the oil and gas bearing territories of Russia, the development of which will allow discovering the new sources of increased oil production. The digital maps of the arrangement of hydrocarbon fields in the Bazhenov, Domanik and Kuonamka sediments over the territories of the Volga-Ural, Timan-Pechora and Lena-Tunguska oil and gas bearing basins are presented. The distribution of oils from these deposits over the depth of occurrence in each basin is shown. The lithological features of reservoir rocks are established. The average values of reservoir parameters characterising the filtration and capacitance properties of the pools in these sediments are determined. To analyse the conditions of Bazhenov oil occurrence, a batch of 2833 oil samples from 127 fields of the West Siberian basin was used, for Domanik oil - 407 samples from 195 fields of the Volga-Ural and Timan-Pechora basins, and for Kuonamka oil - 117 samples from 28 fields of the Lena-Tunguska basin. A comparative analysis of the geological and physical characteristics producing a direct impact on the development regime and the effectiveness of technologies used to extract these hard-to-recover oils was carried out: permeability and porosity of rocks, reservoir temperature and pressure. It is shown that the Domanik and Kuonamka sediments are the closest in characteristics to the reservoirs of the developed American shale oil fields, which indicates the possibility for effective application of the positive experience of the United States for Russian oilfields. The results of the study can be used in the development of new and improvement of existing methods and technologies for the extraction and processing of hard-to-recover oils from the studied sediments.","PeriodicalId":44968,"journal":{"name":"Chemistry for Sustainable Development","volume":"8 6","pages":""},"PeriodicalIF":0.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141339113","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}
The extraction of sulphur-containing compounds of diesel fuel (DF) with ionic liquids (IL) based on imidazole with various substituents (butyl, octyl, nonyl, dodecyl, cetyl) in position 1 of the imidazole ring has been studied; the composition of sulphur-containing compounds and polycyclic aromatic hydrocarbons (PAH) has been determined by gas chromatography - mass spectrometry in the initial and purified diesel fuel. The optimal extraction conditions are determined: temperature 30-35 °C, extraction time 60 min, DF/IL ratio 1.66-2. The most effective extractant for the sulphur-containing compounds of DF is 1-nonyl-3-methylimidazolium bromide, which allows reducing the total sulphur content from 0.369 to 0.143 wt%. Results of the studies of group and individual composition of dibenzothiophene (DBT) and PAH derivatives show that the degree of extraction of DBT derivatives and tricyclic aromatic hydrocarbons is 66-72 %. Naphthalene and its homologues are extracted to a lesser extent - 37 %. Among DBT homologues, dimethyldibenzothiophene is extracted most completely.
{"title":"EXTRACTION OF SULPHUR-CONTAINING AND POLYCYCLIC AROMATIC COMPOUNDS OF DIESEL FUEL WITH IMIDAZOLE-CONTAINING IONIC LIQUIDS","authors":" S. KOBOTAEVA N, V. SAVINYKH YU, S. SKOROKHODOVA T","doi":"10.15372/csd2024541","DOIUrl":"https://doi.org/10.15372/csd2024541","url":null,"abstract":"The extraction of sulphur-containing compounds of diesel fuel (DF) with ionic liquids (IL) based on imidazole with various substituents (butyl, octyl, nonyl, dodecyl, cetyl) in position 1 of the imidazole ring has been studied; the composition of sulphur-containing compounds and polycyclic aromatic hydrocarbons (PAH) has been determined by gas chromatography - mass spectrometry in the initial and purified diesel fuel. The optimal extraction conditions are determined: temperature 30-35 °C, extraction time 60 min, DF/IL ratio 1.66-2. The most effective extractant for the sulphur-containing compounds of DF is 1-nonyl-3-methylimidazolium bromide, which allows reducing the total sulphur content from 0.369 to 0.143 wt%. Results of the studies of group and individual composition of dibenzothiophene (DBT) and PAH derivatives show that the degree of extraction of DBT derivatives and tricyclic aromatic hydrocarbons is 66-72 %. Naphthalene and its homologues are extracted to a lesser extent - 37 %. Among DBT homologues, dimethyldibenzothiophene is extracted most completely.","PeriodicalId":44968,"journal":{"name":"Chemistry for Sustainable Development","volume":"35 24","pages":""},"PeriodicalIF":0.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141340215","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}
Biogeochemical transformations of sulphur in the saline lakes of southeastern Transbaikalia have been studied. Quantitative measurements show that hydrogen sulphide is present in the water and bottom sediments of most of the lakes studied. In addition to hydrogen sulphide, the presence of sulphate, thiosulphate, and elemental sulphur was detected in the water column, while sulphate and elemental sulphur were found in the bottom sediments. It was established that elemental sulphur exists in the lakes primarily in the form of suspension and colloids, as well as polysulphidic sulphur, the amount of which increases with increasing water pH. It is concluded from the isotopic ratios of sulphur for sulphate, hydrosulphide ions, and elemental sulphur that sulphur in the studied natural systems is controlled by biological and geochemical processes. One of the processes controlling the behaviour of sulphate ions in the lakes is sulphate reduction, which leads to the enrichment of sulphate sulphur and depletion of sulphur in hydrogen sulphide with the 34S isotope. It is shown that oxidation of reduced sulphur in the lakes proceeds with the participation of oxygen, iron, manganese, as well as various bacteria. The presence of an additional source of sulphur and/or absence of sulphur reduction causes 32S accumulation in sulphate ions. It is determined that the loss of sulphate ions due to their bacterial reduction in bottom sediments is most pronounced in the chloride and soda lakes of the I and III subtypes. In the sulphate and soda lakes of the II subtype, an increase in the amount of sulphate ions was detected.
研究了外贝加尔东南部盐湖中硫的生物地球化学转化。定量测量结果表明，所研究的大多数湖泊的湖水和湖底沉积物中都存在硫化氢。除硫化氢外，水体中还检测到硫酸盐、硫代硫酸盐和元素硫的存在，而在湖底沉积物中则发现了硫酸盐和元素硫。研究证实，湖泊中的元素硫主要以悬浮物和胶体的形式存在，同时还存在多硫化物硫，其含量随水体 pH 值的增加而增加。根据硫酸根、硫氢离子和元素硫的同位素比值得出的结论是，所研究的自然系统中的硫受生物和地球化学过程的控制。控制湖泊中硫酸根离子行为的过程之一是硫酸根还原，这导致硫酸根硫的富集和硫化氢中 34S 同位素硫的贫化。研究表明，湖泊中还原硫的氧化过程有氧、铁、锰以及各种细菌的参与。额外硫源的存在和/或硫还原的缺失会导致 32S 在硫酸根离子中积累。据测定，在 I 和 III 亚型的氯化物湖和苏打湖中，由于底层沉积物中细菌的还原作用，硫酸根离子的损失最为明显。在 II 亚型的硫酸盐湖和苏打湖中，发现硫酸根离子的数量有所增加。
{"title":"BIOGEOCHEMICAL TRANSFORMATIONS OF SULPHUR IN THE SALINE LAKES OF TRANSBAIKALIA","authors":" V. BORZENKO S, A. FEDOROV I, A. KOMOGORTSEVA I","doi":"10.15372/csd2024553","DOIUrl":"https://doi.org/10.15372/csd2024553","url":null,"abstract":"Biogeochemical transformations of sulphur in the saline lakes of southeastern Transbaikalia have been studied. Quantitative measurements show that hydrogen sulphide is present in the water and bottom sediments of most of the lakes studied. In addition to hydrogen sulphide, the presence of sulphate, thiosulphate, and elemental sulphur was detected in the water column, while sulphate and elemental sulphur were found in the bottom sediments. It was established that elemental sulphur exists in the lakes primarily in the form of suspension and colloids, as well as polysulphidic sulphur, the amount of which increases with increasing water pH. It is concluded from the isotopic ratios of sulphur for sulphate, hydrosulphide ions, and elemental sulphur that sulphur in the studied natural systems is controlled by biological and geochemical processes. One of the processes controlling the behaviour of sulphate ions in the lakes is sulphate reduction, which leads to the enrichment of sulphate sulphur and depletion of sulphur in hydrogen sulphide with the 34S isotope. It is shown that oxidation of reduced sulphur in the lakes proceeds with the participation of oxygen, iron, manganese, as well as various bacteria. The presence of an additional source of sulphur and/or absence of sulphur reduction causes 32S accumulation in sulphate ions. It is determined that the loss of sulphate ions due to their bacterial reduction in bottom sediments is most pronounced in the chloride and soda lakes of the I and III subtypes. In the sulphate and soda lakes of the II subtype, an increase in the amount of sulphate ions was detected.","PeriodicalId":44968,"journal":{"name":"Chemistry for Sustainable Development","volume":"39 19","pages":""},"PeriodicalIF":0.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141344380","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}
V. OSTAPENKO D, V. CHESHKOVA T, A. SAGACHENKO T, S. MIN R
The products of oxidative destruction of asphaltenes of heavy Paleozoic oils from the Ashalcha and Nurlat oilfields differing in the age of host sediments have been studied. It is shown that oxidation of the asphaltenes of both oils by hydrogen peroxide in the presence of acetic acid results in the release of occluded compounds. The compounds identified in their composition include n-alkanes, steranes, hopanes and methyl esters of n-alkane acids. A peculiarity of the asphaltenes of Nurlat oil occurring in the Devonian sediments is the presence of n-alkenes in the composition of occluded compounds. The presence of occluded compounds in the structure of asphaltenes is confirmed by the results of X-ray diffraction analysis.
{"title":"COMPOSITION OF THE COMPOUNDS OCCLUDED BY ASPHALTENES OF HEAVY OILS","authors":" V. OSTAPENKO D, V. CHESHKOVA T, A. SAGACHENKO T, S. MIN R","doi":"10.15372/csd2024545","DOIUrl":"https://doi.org/10.15372/csd2024545","url":null,"abstract":"The products of oxidative destruction of asphaltenes of heavy Paleozoic oils from the Ashalcha and Nurlat oilfields differing in the age of host sediments have been studied. It is shown that oxidation of the asphaltenes of both oils by hydrogen peroxide in the presence of acetic acid results in the release of occluded compounds. The compounds identified in their composition include n-alkanes, steranes, hopanes and methyl esters of n-alkane acids. A peculiarity of the asphaltenes of Nurlat oil occurring in the Devonian sediments is the presence of n-alkenes in the composition of occluded compounds. The presence of occluded compounds in the structure of asphaltenes is confirmed by the results of X-ray diffraction analysis.","PeriodicalId":44968,"journal":{"name":"Chemistry for Sustainable Development","volume":"100 9","pages":""},"PeriodicalIF":0.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141342297","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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