The Effects Between Interfacial Tension and Viscosity Reduction in Viscous Crude Oil Through the Addition of Surfactant Sodium Lignosulfonate (SLS) for EOR Purpose

Sulistyarso, Harry Budiharjo and Pamungkas, Joko and Hermawan, Yulius Deddy (2022) The Effects Between Interfacial Tension and Viscosity Reduction in Viscous Crude Oil Through the Addition of Surfactant Sodium Lignosulfonate (SLS) for EOR Purpose. Science Publishing Group.

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Abstract

Surfactant injection is one of Chemical EOR methods by injecting a special substance as a surface-active agent (surfactant). The purpose is to reduce the interfacial tension (IFT) and the viscosity value of crude oil. This research was conducted to analyze the effect of adding anionic surfactant sodium lignosulfonate (SLS) on a laboratory scale. The sample of crude oil samples are obtained from Wonocolo field, Indonesia. The surfactant was obtained by almond peel extraction, developed at Laboratory Research EOR University of Pembangunan National "Veteran" Yogyakarta. SLS compositions for the experiment are 2%, 4%, 6% and 8% v/v. The test was made at 30, 40, 50, 60 and 70°C. The results showed that 6% v/v SLS solution was the best composition to significantly reduce IFT at 70°C from 32.78 mN/m to 3.22 mN/m. This composition also being the value of critical micelle concentration (CMC) for SLS. At above critical micelle concentration, the additional of surfactants will be insignificant on IFT reduction and also excess amount of surfactant in aqueous solution. With SLS 8% v/v solution gain the lowest viscosity of the fluid from 2.54 cP to 1.88 cP. In addition, the results of this study showed that when the reduction in IFT was the highest, the viscosity reduction was the highest.

Item Type:	Other
Subjects:	T Technology > TP Chemical technology
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Dr Y. Deddy Hermawan
Date Deposited:	04 Apr 2023 00:56
Last Modified:	04 Apr 2023 00:56
URI:	http://eprints.upnyk.ac.id/id/eprint/33048

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