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Biosurfactant Versus Commercial Surfactant: Study on Effectiveness for Application in EOR

[+] Author Affiliations
Livia V. A. de Castilho, Ilson P. Pasqualino, Alan M. Duarte, Lucy Seldin, Denise Maria G. Freire

Federal University of Rio de Janeiro, Rio de Janeiro, Brazil

Vinicius de A. Waldow, Maíra P. de Sousa

CENPES/PDISO/BIO Petrobras, Rio de Janeiro, Brazil

Paper No. OMAE2018-77017, pp. V008T11A041; 7 pages
  • ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 8: Polar and Arctic Sciences and Technology; Petroleum Technology
  • Madrid, Spain, June 17–22, 2018
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5129-6
  • Copyright © 2018 by ASME


The aim of this work was to compare the efficiency of a biosurfactant (BS) and a commercial surfactant under post-salt and pre-salt reservoirs conditions, to evaluate their potential use to EOR (Enhanced Oil Recovery). Rhamnolipids BS from Pseudomonas aeruginosa (INCQS 4046), were produced [1] and characterized [2], [3], and Ultrasperse II® was purchased. Calcite flotation test was conducted to access wettability reversal [4]. IFT analysis was performed [5] under controlled pressure, temperature and salinity to simulate post-salt and pre-salt environmental conditions. Central Composite Rotational Designs (CCRD) were analyzed [6]. According to results, it was demonstrated that both products can reverse wettability and are even more effective under post-salt and pre-salt reservoirs environmental conditions. However, rhamnolipids present better potential for use, since it was more effective when compared to the commercial surfactant, attaining lower interfacial tension values and higher reversal wettability percentages using lower concentrations of product.

Copyright © 2018 by ASME



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