Change in the structural-group composition of bitumen asphaltenes upon thermal bitumen recovery

Comparative analysis of thermal analysis and EPR spectroscopy data on asphaltenes from Ashal’chinskoe and Mordovo-Karmal’skoe bitumens recovered by steam drive and in situ combustion has been performed. It has been found that the steam drive does not alter the structural-group composition of asphalt...

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Published inPetroleum chemistry Vol. 57; no. 3; pp. 198 - 202
Main Authors Yusupova, T. N., Ganeeva, Yu. M., Romanov, G. V., Barskaya, E. E., Morozov, V. I., Okhotnikova, E. S., Vakhin, A. V.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 2017
Springer
Springer Nature B.V
Subjects
Analysis
Asphaltenes
Bitumens
Bituminous materials
Chemistry
Chemistry and Materials Science
Combustion
Data recovery
Industrial Chemistry/Chemical Engineering
Petroleum industry
Petroleum mining
Thermal analysis
asphaltenes
natural bitumens
thermal recovery methods
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Summary:Comparative analysis of thermal analysis and EPR spectroscopy data on asphaltenes from Ashal’chinskoe and Mordovo-Karmal’skoe bitumens recovered by steam drive and in situ combustion has been performed. It has been found that the steam drive does not alter the structural-group composition of asphaltenes whereas the in situ combustion lead to conversion of asphaltenes into coke-like particles deposited onto the rock surface in the reservoir. It has been shown that the asphaltenes with a high proportion of condensed aromatic entities are carriers of genetic information on the petroleum system.
ISSN:0965-5441
1555-6239
DOI:10.1134/S0965544117020256