Kazakhstan journal for oil & gas industryKazakhstan journal for oil & gas industry2707-42262957-806XKMG Engineering10859410.54859/kjogi108594Research ArticleResearch of the impact of switching to low- salinity water during polymer water floodingABIROVZhandos Zh.jandos.abirov@mail.ruAbirovRustemrustabi@gmail.comSahucBertrandoffice@snf-group.kzGilLudwigoffice@snf-group.kzDiversThomasoffice@snf-group.kzSNF VostokKBTUSNF SA210120234468770809202217112022Copyright © 2023, ABIROV Z.Z., Abirov R., Sahuc B., Gil L., Divers T.2023<p><strong>Background:</strong> Increasing the efficiency of a polymer flooding project, both technologically and economically, is always relevant.</p> <p><strong>Aim:</strong> This paper aims to consider switching to less saline water as a fairly simple and effective way to increase the effectiveness of a polymer flooding project.</p> <p><strong>Materials and methods:</strong> The work used data from a real polymer flooding project.</p> <p><strong>Results:</strong> As a result, we have been able to significantly reduce polymer consumption and improve pumping efficiency.</p> <p><strong>Conclusion:</strong> This work shows that, with the possibility of using less saline water, as a simple and effective way to reduce costs and increase efficiency, rolling polymer flooding.</p>polymer floodingchemical methods of enhanced oil recoverylow-mineralized watersviscosityполимерлі суландырумұнай шығаруды арттырудың химиялық әдістерітұздылығы төмен сутұтқырлықполимерное заводнениехимические методы повышения нефтеотдачинизкоминерализованные водывязкость1.Wang D, Han P, Shao Zh, Weihong H and Seright, RS. Sweep Improvement Options for the Daqing Oil Field. SPE Reservoir Evaluation and Engineering. 2008;11(01):18–26. DOI: 10.2118/99441-PA.2.Al-Saadi FS, Amri AB, Nofli S, Van Wunnik J, et al. Polymer Flooding in a Large Field in South Oman – Initial Results and Future Plans; 2012 16–18 April; Muscat, Oman. Paper Number: SPE-154665-MS.3.Gaillard N, Giovannetti B, Favero C. Improved Oil Recovery using Thermally and Chemically Stable Compositions Based on Co and Ter-polymers Containing Acrylamide. SPE Improved Oil Recovery Symposium; 2010 April 24–28; Tulsa, Oklahoma, USA. Paper SPE 129756.4.Vermolen ECM, Van Haasterecht MJT, Masalmeh SK, et al. Pushing the Envelope for Polymer Flooding Towards High-temperature and High-salinity Reservoirs with Polyacrylamide Based Ter-polymers. SPE Middle East Oil and Gas Show and Conference; 2011 September 25–28; Manama, Bahrain. Paper Number SPE 141497.5.Thomas A. Polymer Flooding, Chemical Enhanced Oil Recovery (cEOR) – a Practical Overview. InTech. Dr. Laura Romero-Zerón, editor. 2016.