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dc.contributor.author | Kayukova G. | |
dc.contributor.author | Abdrafikova I. | |
dc.contributor.author | Vakhin A. | |
dc.contributor.author | Antipenko V. | |
dc.date.accessioned | 2020-01-15T21:50:57Z | |
dc.date.available | 2020-01-15T21:50:57Z | |
dc.date.issued | 2019 | |
dc.identifier.issn | 1755-1307 | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/156306 | |
dc.description.abstract | © Published under licence by IOP Publishing Ltd. The paper reveals the distinctive features of the change in the composition heavy oils of various types and of natural bitumen- A sphaltite from the sandstones of the Permian sediments of the Spiridonovsky field in the territory of Tatarstan, in model experiments at a temperature of 250°C, characteristic for steam-thermal impact on the formation, and the pressure in the system of not more than 2 MPa. The choice of low pressure is due to the fact that bituminous rocks in the Permian sediments occur at relatively shallow depths in the near-surface deposits of the sedimentary strata, which necessitates the development of special technologies for their extraction. The experiments used natural iron oxide-hematite. As a part of the products of asphaltite conversion under the influence of hydrothermal-catalytic factors, the content of hydrocarbons almost 4-fold, the content of alcohol-benzene resins and asphaltenes decreases. The content of benzene resins increases somewhat. The composition of asphaltite proved to be less stable than of heavy oils from age-old sediments, apparently due to special conditions for the formation of its composition in natural conditions under the influence of secondary low-temperature biochemical processes that led to the accumulation of thermally unstable resinous-asphaltene components. Compared with the original asphaltite, in the products of the experiment, the content of alkanes of composition C10-C30 substantially increases with an obvious predominance of homologues with an even number of carbon atoms in the molecule. The product is characterized by a lesser degree of aromaticity and content of sulfoxide groups. The results of the studies showed the possibility of upgrading the composition of solid bitumen- A sphaltite in in situ conversion by diluting its composition with lighter newly formed hydrocarbons, due to the destruction of its high molecular weight components. | |
dc.relation.ispartofseries | IOP Conference Series: Earth and Environmental Science | |
dc.title | Features of the change in the composition heavy oils of various types and solid asphaltite in the hydrothermal-catalytic conditions | |
dc.type | Conference Paper | |
dc.relation.ispartofseries-issue | 1 | |
dc.relation.ispartofseries-volume | 282 | |
dc.collection | Публикации сотрудников КФУ | |
dc.source.id | SCOPUS17551307-2019-282-1-SID85070419637 |