Oil-water interfacial tension, wettability alteration and foaming studies of natural surfactant extracted from Vernonia Amygdalina
نویسندگان
چکیده
Surfactant flooding is an enhanced oil recovery (EOR) method for recovering residual in the reservoir through mechanism of interfacial tension (IFT) reduction and wettability alteration. Due to toxicity high cost associated with conventional surfactants, recent research has focussed on developing low-cost environmentally benign surfactants. Herein, a green surfactant extracted from Vernonia Amygdalina (VA) appraised EOR applications. The was characterized using Fourier Transform Infrared (FTIR) High-Pressure Liquid Chromatography (HPLC). IFT synthesized at oil-water interface determined Kruss tensiometer. Additionally, foam stability examined. Moreover, saponin based natural (SBNS) rock-fluid analysed Dataphysics drop shape analyser. Experimental result revealed that SBNS (1 wt% concentration) stabilized longer periods half-life 1100 min. Furthermore, effective lowering 18 mN/m 0.97 mN/m. Finally, altered sandstone cores water-wetting condition by reducing contact angle 118.5 ° 45.7 °. Overall, exhibit excellent properties desirable thereby recommended as supplementary alternative
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ژورنال
عنوان ژورنال: Petroleum Research
سال: 2022
ISSN: ['2524-1729', '2096-2495']
DOI: https://doi.org/10.1016/j.ptlrs.2021.12.006