Neftyanaya Provintsiya
electronic peer-reviewed scholarly publication
Neftyanaya provintsiya No.4(28),2021, Part 2

Study of the organic-scales formation in heavy oil of the Western Siberia field

I.A. Stetsyuk, M.I. Korolev, P.V. Roschin, I.A. Struchkov


The efficiency of operation of wells with abnormal operating conditions - the formation of asphalt-resinous paraffin deposits of hydrocarbons (ARPD), can be achieved only with constant monitoring and control of complications development.

To form an approach when working with a complicated fund, laboratory experiments were conducted to determine the conditions for the organic-scales formation in a wellhead oil sample at pressures of 17 and 34 atm. The studies were carried out by high-pressure microscopy with software granulometric analysis.

Analysis of data from the results of experiments made it possible to determine the rate of formation of organic-scales particles. Temperature dependence of average particle area at two pressures is obtained. It is shown that the temperature of formation of organic-scales particles in oil increases with increasing pressure, and the rate of their formation decreases.

Based on the forecast model of ARPD formation in the program module, it is proved that there is no risk of ARPD formation in oil-well tubing regardless of well flow rate at current watering in conditions of the field under consideration.

Key words:

paraffin saturation point, organic deposits, heavy oil, visual method of investigation, complicated stock


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I.A. Stetsyuk, chief manager of oil and gas production department, LLC RN- Purneftegaz
3, mkr. 10, Gubkinsky, Yamalo-Nenets Autonomous District, 629830, Russian Federation

M.I. Korolev, Ph.D., chief field engineer, LLC RN-Purneftegaz
3, mkr. 10, Gubkinsky, Yamalo-Nenets Autonomous District, 629830, Russian Federation

P.V. Roschin, Ph.D., chief expert of the bureau of experts, SamaraNIPIneft LLC
69/3, Prospekt Oktyabrya st., Ufa, 450054, Russian Federation

I.A. Struchkov, Ph.D., head of the group of the department of geology and field development of joint ventures, Tyumen Petroleum Research Center
79/1, Osipenko st., Tyumen, 625002, Russian Federation

For citation:

I.A. Stetsyuk, M.I. Korolev, P.V. Roschin, I.A. Struchkov Izuchenie uslovij obrazovanija chastic tverdoj fazy v tjazheloj vysokovjazkoj nefti mestorozhdenij Zapadnoj Sibiri [Study of the organic-scales formation in heavy oil of the Western Siberia field]. Neftyanaya Provintsiya, No. 4(28), Part 2, 2021. pp. 327-342. DOI (in Russian)

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