Proceedings of the International Conference on Recent Innovations in Sustainable Engineering Solutions 2025 (ICONRISES 2025)

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Optimizing Surfactant-Polymer Injection Design for Enhanced Oil Recovery in Sandstone Reservoirs

Authors
Riska Laksmita Sari1, *, Welayaturromadhona Welayaturromadhona1, Hadziqul Abror1, Eriska Eklezia Dwi Saputri1, Wahyu Budi Utomo1
1University of Jember, Indonesia, Jember
*Corresponding author. Email: riskalaksmita@unej.ac.id
Corresponding Author
Riska Laksmita Sari
Available Online 15 December 2025.
DOI
10.2991/978-94-6463-920-9_16How to use a DOI?
Keywords
Enhanced Oil Recovery; Coreflood; Recovery Factor
Abstract

This study aims to identify an effective surfactant-polymer (SP) injection design for Enhanced Oil Recovery (EOR) in sandstone reservoirs through laboratory coreflooding experiments. Two Berea sandstone samples with different permeabilities—Core E3 (123.33 mD) and Core BB2 (438.26 mD)—were used to evaluate the influence of injection rate and slug size on the recovery factor (RF). The optimal injection design was identified in Core BB2, which had higher permeability, featuring a sequence of Waterflood (WF) 3.2 PV, SP 0.5 PV, Polymer (P) 2.4 PV, and Flush Water (FW) 3.0 PV. Results demonstrate that chemical injection significantly enhances oil recovery compared to waterflooding alone. In Core BB2, chemical injection provided an incremental oil recovery of 33.3% of the initial oil saturation (Soi), increasing the cumulative RF from 57.61% (after WF) to 90.91%. Conversely, in the lower-permeability Core E3, the incremental recovery was only 11.27% Soi, with a final RF of 41.37%. These findings underscore the importance of permeability and slug design in maximizing SP-EOR effectiveness.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the International Conference on Recent Innovations in Sustainable Engineering Solutions 2025 (ICONRISES 2025)
Series
Advances in Engineering Research
Publication Date
15 December 2025
ISBN
978-94-6463-920-9
ISSN
2352-5401
DOI
10.2991/978-94-6463-920-9_16How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Riska Laksmita Sari
AU  - Welayaturromadhona Welayaturromadhona
AU  - Hadziqul Abror
AU  - Eriska Eklezia Dwi Saputri
AU  - Wahyu Budi Utomo
PY  - 2025
DA  - 2025/12/15
TI  - Optimizing Surfactant-Polymer Injection Design for Enhanced Oil Recovery in Sandstone Reservoirs
BT  - Proceedings of the International Conference on Recent Innovations in Sustainable Engineering Solutions 2025 (ICONRISES 2025)
PB  - Atlantis Press
SP  - 153
EP  - 162
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-920-9_16
DO  - 10.2991/978-94-6463-920-9_16
ID  - Sari2025
ER  -