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Effects of mechanical treatment and water under supercritical conditions on oil-saturated sandstone

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Abstract

The composition of products obtained upon the mechanical treatment of oil-saturated sandstone in various gas atmospheres and upon its thermolysis in supercritical water was studied. It was found that, upon mechanical treatment in the atmospheres of argon and air, the yield of bitumoids (organic matter) and the amounts of asphaltenes and oils in the composition of this organic matter decreased. Upon the mechanical treatment of sandstone in the presence of hydrogen, no considerable changes in the concentration and substantial composition of bitumoids were observed, as compared with bitumoids extracted from the initial sandstone. A combination of the mechanical treatment of oil-saturated sandstone and the subsequent aquathermolysis under supercritical conditions led to an increase in the yields of liquid and gaseous products. In the composition of liquid products, resinous components predominantly occurred. The individual and group compositions of alkanes and alkyl-substituted mono-, bi-, and triaromatic hydrocarbons in bitumoids and pyrolysis products were analyzed. Methane was predominant among hydrocarbon-containing components in the gaseous products formed upon the mechanical treatment of sandstone in the presence of various gases, whereas propane was predominant upon the aquathermolysis.

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Authors and Affiliations

  1. Institute of Petroleum Chemistry, Siberian Branch, Russian Academy of Sciences, Tomsk, Russia

    V. V. Savel’ev, G. S. Pevneva, V. G. Surkov & A. K. Golovko

Authors
  1. V. V. Savel’ev
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  2. G. S. Pevneva
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  3. V. G. Surkov
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  4. A. K. Golovko
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Corresponding author

Correspondence to V. V. Savel’ev.

Additional information

Original Russian Text © V.V. Savel’ev, G.S. Pevneva, V.G. Surkov, A.K. Golovko, 2011, published in Khimiya Tverdogo Topliva, 2011, No. 2, pp. 72–77.

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Savel’ev, V.V., Pevneva, G.S., Surkov, V.G. et al. Effects of mechanical treatment and water under supercritical conditions on oil-saturated sandstone. Solid Fuel Chem. 45, 135–141 (2011). https://doi.org/10.3103/S036152191102011X

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  • DOI: https://doi.org/10.3103/S036152191102011X

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