Optimising chemical concentration and injection volume in the ASP process: a combined approach incorporating experiments and the optimal experimental design Online publication date: Fri, 27-Oct-2023
by Pham Huu Tai; Nguyen Xuan Huy; Linh Hai Luong; Nguyen Viet Khoi Nguyen
International Journal of Oil, Gas and Coal Technology (IJOGCT), Vol. 34, No. 3, 2023
Abstract: The efficiency of utilising an alkaline-surfactant-polymer (ASP) flooding technique for enhanced oil recovery is primarily reliant on the middle-phase microemulsion that forms between the ASP solution and oil. This microemulsion phase exhibits ultralow interfacial tensions, contributing to increased oil recovery. In this study, an optimal experimental design and response surface methodology were employed to predict the ideal concentration of chemicals in the ASP solution for achieving maximum microemulsion quality. Subsequently, the optimised ASP formulation was tested on 10 core flooding experiments to determine the most effective injection volume. The findings revealed that the optimal concentration of surfactants in the ASP solution was 0.57 wt%, while the effective injection volume reached 19.47% of the pore volume. [Received: July 14, 2022; Accepted: July 14, 2023]
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Oil, Gas and Coal Technology (IJOGCT):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook