SIBERIAN FEDERAL UNIVERSITY School of petroleum and Natural Gas

and refining engineering


Importance of EOR methods in Russia and

Viscosity reduction of heavy oils by presence
of catalytic particles (Iron) .

This presentation was prepared for presentation at oil and gas international conference held in Siberian Federal University ,Krasnoyarsk,Russia ,20-25 April 2018.

Supervisor: Dr. Fedor A. Buryukin

Ebrahimi Hossein
Email: Hoseinebrahimii@yahoo.com

SIBERIAN FEDERAL UNIVERSITY

that there is a need to invest in new fields

and new regions, which has led to a focus on East Siberia, the offshore, tight oil, and the Arctic.

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(water and gas injection) methods are no longer effective and

normally leave around 60-80% of oil unrecovered. 

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as pilot projects in Russia.
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HEAVY OILS IN DIFFERENT SIZE(Micro ,Nano) AND TEMPREATURE(25°c ,50 °c).
SIBERIAN

FEDERAL UNIVERSITY

UNIVERSITY

and nano size) in 25 °c and 50 °c was

investigated.

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TEMPERATURE (25°C , 50°C). the tests showed using the optimum percentage

of magnetic particle can reduce the viscosity of heavy oil .

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Viscousity increased

Viscousity increased

Optimum point

Optimum point

characterized by paraffins, naphthenes,...
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parameters such as base fluids, particle size, particle shape, temperature,

particle size distribution and particle aggregation.

The most appropriate catalysts are those containing strong, active sites that can actively break the C-C, C-S, C-O and related bonds in resins and asphaltenes, with a net increase in the concentration of saturates and lighter aromatic hydrocarbons.

by metal particles even at room temperature, and without applying

steam stimulation.
Catalyzing the hydrogenation reactions of aquathermolysis process during steam stimulation is the strongest viscosity reduction mechanism of the metal particles.

with the heavy molecules of oil may dominate(control , influence) the

exothermic reactions effect in longer times. As a result, metal particles may strongly increase the viscosity.
In order to prevent this effect ,the concentration of particles should be selected in a way that all the particles be consumed during the high temperature hydrogenation and hydrosulphurization reactions.

Reactants --> Products + Energy

Exothermic Reactions

steam ,
Catalytic flooding can Combined with Thermal methods such as

(SAGD).

This combined technology can apply on wells and
reduced steam use,
shortened steam circulation time
increased initial oil production.

in Siberian Federal University ,oil and gas faculty.