KFU. Card publication. Investigating the structure and composition of heavy oil under thermal-catalytic treatment in presence of carbonaceous minerals

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INVESTIGATING THE STRUCTURE AND COMPOSITION OF HEAVY OIL UNDER THERMAL-CATALYTIC TREATMENT IN PRESENCE OF CARBONACEOUS MINERALS

Form of presentation

Articles in international journals and collections

Year of publication

2018

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Authors, employees of KFU

Vakhin Aleksey Vladimirovich, author

Nasyrova Zukhra Ramisovna, author

Bibliographic description in the original language

Petrov, S. M., Ibragimova, D. A., Vakhin, A. V., Zaidullin, I. M., Valieva, G. R., & Zakirova, Z. R. (2018). Investigating the structure and composition of heavy oil under thermal-catalytic treatment in presence of carbonaceous minerals (Russian). Neftyanoe khozyaystvo-Oil Industry, 2018(02), 44-47.

Annotation

At present, great attention is paid to the study of the heavy crude oils and natural bitumens transformation occurring in the conditions of their extraction by steam-thermal methods acting on carbonate reservoir. The steamassisted gravity drainage is a cost effective method for increasing the production of superviscous oil and providing access to reserves that were previously considered to be unrecoverable. Thermal methods of heavy oil recovery lead to various changes in the physical and chemical properties of the extracted crude oil. The same steam-thermal method can be highly efficient in certain reservoir conditions, while in others, its efficiency is zero or even negative. The knowledge of the peculiarities of the super-viscous oil structure and composition change after the steam-thermal method effect on the petroleum rock becomes necessary to select the most effective steam-thermal technology for specific conditions of the reservoir. The paper considers the influence of rock-forming minerals on the physical and chemical properties of heavy crude oil under steam-stimulation. Biodegrade oil was performed in the presence of rock-forming additives among which are calcites, dolomite, kaolin clay and manganese oxide. In the experiments we varied temperature and pressure conditions. It was observed, that the temperature and pressure have a significant influence on the processes. The obtained samples after the steam-thermal stimulation characterizes by the lower structural and Newtonian flow viscosity, by great output of fuel and oil fractions than the heavy oil. Resins converted into lighter components during the destruction. The steam stimulation destruction of high molecular compounds of oil occurs on the surface of the mineral additives with the large surface area of the catalyst capable of fiction. On the surface, additives partially structure a monomolecular surface layer with a decrease in entropy of the observed molecules. This leads to a shift in the equilibrium towards the unimolecular reaction of thermal decomposition of -C-C- bonds by radical chain mechanism. Thus, there are two competing mechanisms. On the one hand, the temperature increase raises processes of macromolecular compounds cracking, from the other hand growing temperature background in the absence of high pressure reduces the probability of adsorption on to the additive surface.

Keywords

aquathermolysis, carbonaceous rock, calcite, dolomite, kaolin clay, pyrolusite, heavy oil

The name of the journal

Neftyanoe khozyaystvo - Oil Industry

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85042358174&doi=10.24887%2f0028-2448-2018-2-44-47&partnerID=40&md5=33ce11d5c6d033933db0cde52c46ab8c

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=229821&p_lang=2

Resource files

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5._Investigating_the_structure_and_composition.pdf	0,85	pdf	show / download

Full metadata record

Field DC	Value	Language
dc.contributor.author	Vakhin Aleksey Vladimirovich	ru_RU
dc.contributor.author	Nasyrova Zukhra Ramisovna	ru_RU
dc.date.accessioned	2018-01-01T00:00:00Z	ru_RU
dc.date.available	2018-01-01T00:00:00Z	ru_RU
dc.date.issued	2018	ru_RU
dc.identifier.citation	Petrov, S. M., Ibragimova, D. A., Vakhin, A. V., Zaidullin, I. M., Valieva, G. R., & Zakirova, Z. R. (2018). Investigating the structure and composition of heavy oil under thermal-catalytic treatment in presence of carbonaceous minerals (Russian). Neftyanoe khozyaystvo-Oil Industry, 2018(02), 44-47.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=229821&p_lang=2	ru_RU
dc.description.abstract	Neftyanoe khozyaystvo - Oil Industry	ru_RU
dc.description.abstract	At present, great attention is paid to the study of the heavy crude oils and natural bitumens transformation occurring in the conditions of their extraction by steam-thermal methods acting on carbonate reservoir. The steamassisted gravity drainage is a cost effective method for increasing the production of superviscous oil and providing access to reserves that were previously considered to be unrecoverable. Thermal methods of heavy oil recovery lead to various changes in the physical and chemical properties of the extracted crude oil. The same steam-thermal method can be highly efficient in certain reservoir conditions, while in others, its efficiency is zero or even negative. The knowledge of the peculiarities of the super-viscous oil structure and composition change after the steam-thermal method effect on the petroleum rock becomes necessary to select the most effective steam-thermal technology for specific conditions of the reservoir. The paper considers the influence of rock-forming minerals on the physical and chemical properties of heavy crude oil under steam-stimulation. Biodegrade oil was performed in the presence of rock-forming additives among which are calcites, dolomite, kaolin clay and manganese oxide. In the experiments we varied temperature and pressure conditions. It was observed, that the temperature and pressure have a significant influence on the processes. The obtained samples after the steam-thermal stimulation characterizes by the lower structural and Newtonian flow viscosity, by great output of fuel and oil fractions than the heavy oil. Resins converted into lighter components during the destruction. The steam stimulation destruction of high molecular compounds of oil occurs on the surface of the mineral additives with the large surface area of the catalyst capable of fiction. On the surface, additives partially structure a monomolecular surface layer with a decrease in entropy of the observed molecules. This leads to a shift in the equilibrium towards the unimolecular reaction of thermal decomposition of -C-C- bonds by radical chain mechanism. Thus, there are two competing mechanisms. On the one hand, the temperature increase raises processes of macromolecular compounds cracking, from the other hand growing temperature background in the absence of high pressure reduces the probability of adsorption on to the additive surface.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	aquathermolysis	ru_RU
dc.subject	carbonaceous rock	ru_RU
dc.subject	calcite	ru_RU
dc.subject	dolomite	ru_RU
dc.subject	kaolin clay	ru_RU
dc.subject	pyrolusite	ru_RU
dc.subject	heavy oil	ru_RU
dc.title	Investigating the structure and composition of heavy oil under thermal-catalytic treatment in presence of carbonaceous minerals	ru_RU
dc.type	Articles in international journals and collections	ru_RU