The Role of Reservoir Microflora in the Process of Oil Displacement with Combined Physico-Chemical and Microbiological Method

Authors

  • L.I. Svarovskaya Institute of Petroleum Chemistry, Russian Academy of Sciences 3, Academichesky Ave., Tomsk, Russia
  • L.K. Altunina Institute of Petroleum Chemistry, Russian Academy of Sciences 3, Academichesky Ave., Tomsk, Russia

DOI:

https://doi.org/10.18321/ectj536

Abstract

A combined physico-chemical and microbiological method has been developed to enhance oil recovery. The method has been developed taking into account both oil properties and microbiological characteristics of the formation waters in White Tiger oil field. Total number of microflora in the formation water exceeded 2·107 cell/cm3. The solution of IKhN-KA system applied as a stimulating substrate increased the number of microflora by 5-6 orders. Due to active enzyme system microorganisms were capable to affect oil fixed on the porous rock. The contact of microorganisms with oil was accompanied with hydrocarbon destruction and with the accumulation of metabolism products. As a result rheological properties of oil were changed. During 10 days of microflora cultivation in contact with oil total biodestruction of n-alkanes in oil recovered from White Tiger oil field ranged from 76 to 81%. Filtration properties and oil-displacing capacity were studied using core reservoir models at 120 °C and at a pressure of 4 MPa under the conditions simulating those observed in White Tiger oil field. Porous volume of the model was 108.2 cm3, gas permeability averaged 0.712 D, core length - 26 cm. Oil displacement efficiency amounted to 57.4%. Using a combined physico-chemical and microbiological method one increased oil displacement efficiency by 14.2%.

References

(1). ZoBell C.E.: Action of microorganisms on hydrocarbons. Bact. Rewiev, 1946 V. 10. № 1-2. pp. 1-41.

(2). Svarovskaya L.I., Altunina L.K., Rozhenkova Z.A., Buldakova E.P.: MinChem’92: Proc. The Fourth Symposium on Mining Chemistry, (1992) Kiev, Ukraine, vol. 2, pp. 25-32.

(3). Gerhard F.: Methods of General Bacteriology, (1983) Moscow, “Mir”, Russia, pp. 362-363

(4). Svarovskaya L.I., Altunina L.K., T.D. Vinh, F.V. Doan. Proceeding of the IV Intern Conf. “Oil and Gas Chemistry”. (2000) Tomsk,. V. 2. p. 39-43.

(5). Rozanova E.P. Progress in Microbiology, Moscow, «Nauka», (1967) № 4, pp. 61-93.

Downloads

Published

2002-08-20

How to Cite

Svarovskaya, L., & Altunina, L. (2002). The Role of Reservoir Microflora in the Process of Oil Displacement with Combined Physico-Chemical and Microbiological Method. Eurasian Chemico-Technological Journal, 4(3), 207–211. https://doi.org/10.18321/ectj536

Issue

Vol. 4 No. 3 (2002)

Section

Articles

License

You are free to: Share — copy and redistribute the material in any medium or format. Adapt — remix, transform, and build upon the material for any purpose, even commercially.

Eurasian Chemico-Technological Journal applies a Creative Commons Attribution 4.0 International License to articles and other works we publish.

Subject to the acceptance of the Article for publication in the Eurasian Chemico-Technological Journal, the Author(s) agrees to grant Eurasian Chemico-Technological Journal permission to publish the unpublished and original Article and all associated supplemental material under the Creative Commons Attribution 4.0 International license (CC BY 4.0).

Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.