Assessment of biosurfactants improves oil recovery in production waters, indicating potential for enhanced extraction.
37 samples from EPPG and swamps of produced waters were collected, analyzed, cultured and isolated to produce biosurfactants capable of reducing surface and interfacial tensions measured in oil production waters in the Petrochad (Mangara) Limited field in Badila. Only 10 isolates selected and codified, showed good biosurfactant production capacities. All these 10 isolates were subjected to screening tests (drop collapse, oil dispersion, emulsion stability and surface tension measurement). Three best isolates showed very good biosurfactant production capacities and consequently better reduction of surface tension (RPG14 = 23.7mN / m, RPG18 = 22.45mN / m, RPG20 = 22.75mN / m) and interfacial tension (RPG14 = 14.35 ±0.5 mN/m, RPG18= 15.35 ±0.5 mN/m, RPG20= 15.45 ±0.5 mN/m) compared to those measured in the field between 2014 and 2023.
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Bakimbil et al. (2025) studied this question.
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