{"title":"热预处理高石蜡原油的结构、流变行为及聚集","authors":"Yu. V. Loskutova, L. V. Chekantseva, N. V. Yudina","doi":"10.1134/S0965544125601036","DOIUrl":null,"url":null,"abstract":"<p>The paper describes the structural and rheological investigation of two thermally pretreated highly paraffinic resinous crude oils, specifically the oils from the South-Maiskoye oil field (SM) and from the Archinskoye oil and gas condensate field (AR). Pretreating SM (asphaltene/resin ratio ≈ 0.09) at 40°C induced an anomalous rise in both viscosity–temperature behavior and asphalt–resin–paraffin deposit (ARPD) formation—in contrast to pretreatment of the same oil at 10, 20, and 60°C. For AR (with its asphaltene/resin ratio of about 0.23), elevating the pretreatment temperature to 60°C decreased the viscosity and pour point and increased the concentrations of resinous-asphaltenic components and solid <i>n</i>-alkanes in the ARPDs. Photon correlation spectroscopy revealed a spontaneous growth of aggregates when the SM oil was cooled from 35 to 25°C. Cooling the AR oil from 50 to 35°C generated large and small aggregates simultaneously.</p>","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"65 6","pages":"674 - 684"},"PeriodicalIF":1.1000,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Structural and Rheological Behaviors and Aggregation of Thermally Pretreated Highly Paraffinic Crude Oils\",\"authors\":\"Yu. V. Loskutova, L. V. Chekantseva, N. V. Yudina\",\"doi\":\"10.1134/S0965544125601036\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The paper describes the structural and rheological investigation of two thermally pretreated highly paraffinic resinous crude oils, specifically the oils from the South-Maiskoye oil field (SM) and from the Archinskoye oil and gas condensate field (AR). Pretreating SM (asphaltene/resin ratio ≈ 0.09) at 40°C induced an anomalous rise in both viscosity–temperature behavior and asphalt–resin–paraffin deposit (ARPD) formation—in contrast to pretreatment of the same oil at 10, 20, and 60°C. For AR (with its asphaltene/resin ratio of about 0.23), elevating the pretreatment temperature to 60°C decreased the viscosity and pour point and increased the concentrations of resinous-asphaltenic components and solid <i>n</i>-alkanes in the ARPDs. Photon correlation spectroscopy revealed a spontaneous growth of aggregates when the SM oil was cooled from 35 to 25°C. Cooling the AR oil from 50 to 35°C generated large and small aggregates simultaneously.</p>\",\"PeriodicalId\":725,\"journal\":{\"name\":\"Petroleum Chemistry\",\"volume\":\"65 6\",\"pages\":\"674 - 684\"},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2025-08-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Petroleum Chemistry\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S0965544125601036\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, ORGANIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Petroleum Chemistry","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0965544125601036","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, ORGANIC","Score":null,"Total":0}
Structural and Rheological Behaviors and Aggregation of Thermally Pretreated Highly Paraffinic Crude Oils
The paper describes the structural and rheological investigation of two thermally pretreated highly paraffinic resinous crude oils, specifically the oils from the South-Maiskoye oil field (SM) and from the Archinskoye oil and gas condensate field (AR). Pretreating SM (asphaltene/resin ratio ≈ 0.09) at 40°C induced an anomalous rise in both viscosity–temperature behavior and asphalt–resin–paraffin deposit (ARPD) formation—in contrast to pretreatment of the same oil at 10, 20, and 60°C. For AR (with its asphaltene/resin ratio of about 0.23), elevating the pretreatment temperature to 60°C decreased the viscosity and pour point and increased the concentrations of resinous-asphaltenic components and solid n-alkanes in the ARPDs. Photon correlation spectroscopy revealed a spontaneous growth of aggregates when the SM oil was cooled from 35 to 25°C. Cooling the AR oil from 50 to 35°C generated large and small aggregates simultaneously.
期刊介绍：
Petroleum Chemistry (Neftekhimiya), founded in 1961, offers original papers on and reviews of theoretical and experimental studies concerned with current problems of petroleum chemistry and processing such as chemical composition of crude oils and natural gas liquids; petroleum refining (cracking, hydrocracking, and catalytic reforming); catalysts for petrochemical processes (hydrogenation, isomerization, oxidation, hydroformylation, etc.); activation and catalytic transformation of hydrocarbons and other components of petroleum, natural gas, and other complex organic mixtures; new petrochemicals including lubricants and additives; environmental problems; and information on scientific meetings relevant to these areas.
Petroleum Chemistry publishes articles on these topics from members of the scientific community of the former Soviet Union.
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