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Article

Polymer Flooding in Space-Constrained Reservoirs: Technical and Economic Assessment of Liquid vs. Powder Polymers

by
Muhammad Tahir
1,*,
Rafael E. Hincapie
1,
Dominic Marx
2,
Dominik Steineder
1,
Amir Farzaneh
1,
Torsten Clemens
1,
Nikola Baric
2,
Elham Ghodsi
3 and
Riyaz Kharrat
3
1
OMV Exploration & Production GmbH, 1020 Vienna, Austria
2
OMV Austria Exploration & Production GmbH, 2230 Gänserndorf, Austria
3
Department Geoenergy (DGE), Montanuniversität Leoben, 8700 Leoben, Austria
*
Author to whom correspondence should be addressed.
Polymers 2025, 17(21), 2927; https://doi.org/10.3390/polym17212927 (registering DOI)
Submission received: 22 September 2025 / Revised: 24 October 2025 / Accepted: 30 October 2025 / Published: 31 October 2025

Abstract

This study evaluates the technical and economic feasibility of liquid polymer emulsions as substitutes for powder polymers in polymer flooding applications, particularly in space-constrained, low-permeability reservoirs in Austria. Rheological tests determined that target viscosities of 20 mPa·s at 20 °C and a shear rate of 7.94 s−1 were achieved using concentrations of 1200 ppm for liquid polymer 1 (LP1), 2250 ppm for liquid polymer 2 (LP2), and 1200–1400 ppm for powder polymers. Injectivity tests revealed that liquid polymers encountered challenges in 60 mD and 300 mD core plugs, with pressure stabilization not achieved at injection rates of 1–2.5 ft/day. Powder polymers demonstrated stable injectivity, with powder polymer 1 (PP1) showing an optimal performance at 10 ft/day and a low residual resistance factor (RRF). Two-phase core floods using PP1 and powder polymer 2 (PP2) at 1 ft/day yielded incremental oil recovery factors of approximately 5%, with a maximum of 8% observed for higher viscosity slugs. Economic analysis indicated that over a 3-year horizon, liquid polymers are 30% cheaper than powder polymer Option 1 but 100% more expensive than Option 2. Over a 10-year horizon, liquid polymers are 50% more expensive than both powder polymer options. Although liquid polymers offer logistical advantages, they are unsuitable for low-permeability reservoirs. Powdered polymers, particularly PP1, are recommended for pilot implementation due to superior injectivity, mechanical stability, and recovery performance.
Keywords: liquid polymers; powder polymers; injectivity; emulsions; pilot project liquid polymers; powder polymers; injectivity; emulsions; pilot project

Share and Cite

MDPI and ACS Style

Tahir, M.; Hincapie, R.E.; Marx, D.; Steineder, D.; Farzaneh, A.; Clemens, T.; Baric, N.; Ghodsi, E.; Kharrat, R. Polymer Flooding in Space-Constrained Reservoirs: Technical and Economic Assessment of Liquid vs. Powder Polymers. Polymers 2025, 17, 2927. https://doi.org/10.3390/polym17212927

AMA Style

Tahir M, Hincapie RE, Marx D, Steineder D, Farzaneh A, Clemens T, Baric N, Ghodsi E, Kharrat R. Polymer Flooding in Space-Constrained Reservoirs: Technical and Economic Assessment of Liquid vs. Powder Polymers. Polymers. 2025; 17(21):2927. https://doi.org/10.3390/polym17212927

Chicago/Turabian Style

Tahir, Muhammad, Rafael E. Hincapie, Dominic Marx, Dominik Steineder, Amir Farzaneh, Torsten Clemens, Nikola Baric, Elham Ghodsi, and Riyaz Kharrat. 2025. "Polymer Flooding in Space-Constrained Reservoirs: Technical and Economic Assessment of Liquid vs. Powder Polymers" Polymers 17, no. 21: 2927. https://doi.org/10.3390/polym17212927

APA Style

Tahir, M., Hincapie, R. E., Marx, D., Steineder, D., Farzaneh, A., Clemens, T., Baric, N., Ghodsi, E., & Kharrat, R. (2025). Polymer Flooding in Space-Constrained Reservoirs: Technical and Economic Assessment of Liquid vs. Powder Polymers. Polymers, 17(21), 2927. https://doi.org/10.3390/polym17212927

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