Oil-water interfacial tension, wettability alteration and foaming studies of natural surfactant extracted from Vernonia Amygdalina

作     者：Happiness Imuetinyan Augustine Agi Afeez Gbadamosi Radzuan Junin Jeffrey Osehd Happiness Imuetinyan;Augustine Agi;Afeez Gbadamosi;Radzuan Junin;Jeffrey Oseh

作者机构：Department of Petroleum EngineeringCollege of Engineering and TechnologyFederal University of Petroleum ResourcesEfurunNigeria Department of Petroleum EngineeringSchool of Chemical and Energy EngineeringFaculty of EngineeringUniversiti Teknologi Malaysia81310Skuda JohorMalaysia Center for Integrative Petroleum ResearchKing Fahd University of Petroleum and MineralsDhahran31262Saudi Arabia Department of Petroleum EngineeringFederal University of Technology OwerriNigeria 

出 版 物：《Petroleum Research》 (石油研究（英文）)

年 卷 期：2022年第7卷第3期

页      面：350-356页

核心收录：

学科分类：0820[工学-石油与天然气工程] 081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：The authors would like to thank the Ministry of Higher Education(MOHE)Malaysia and Universiti Teknologi Malaysia(UTM)for theirfinancial support through Research Management Grants Vot.No.R.J130000.3551.07G52 R.J130000.3551.06G68&06G69 

主　　题：Enhanced oil recovery Surfactant Interfacial tension Wettability Saponin Foam 

摘      要：Surfactant flooding is an enhanced oil recovery(EOR)method for recovering residual oil in the reservoir through mechanism of interfacial tension(IFT)reduction and wettability *** to toxicity and high cost associated with conventional surfactants,recent research has focussed on developing low-cost and environmentally benign ***,a low-cost green surfactant is extracted from Vernonia Amygdalina(VA)and appraised for EOR *** extracted surfactant was characterized using Fourier Transform Infrared(FTIR)and High-Pressure Liquid Chromatography(HPLC).The IFT of the synthesized surfactant at the oil-water interface was determined using Kruss ***,the foam stability of the synthesized surfactant was ***,the wettability of the saponin based natural surfactant(SBNS)at the rock-fluid interface was analysed using Dataphysics drop shape *** result revealed that SBNS(1 wt%concentration)stabilized foam for longer periods with half-life of 1100 ***,the synthesized surfactant was effective in lowering the IFT of oil-water interface from 18 mN/m to 0.97 mN/***,SBNS altered the wettability of sandstone cores to water-wetting condition by reducing the contact angle from 118.5° to 45.7°.Overall,SBNS exhibit excellent properties desirable for EOR and thereby recommended as supplementary alternative to conventional surfactants.