Abstract
The present work is concerned with experimental results of rheological properties, flow characteristics in porous media, and EOR performance for two types of temperature-tolerant and salt-resistant polymers, attempting to relate the bulk solution properties to the flow behavior in porous media. The results suggest that S-HPAM exhibits a very pronounced antiaging property, which can probably be explained by the introduction of sulfonic group into S-HPAM molecular structure improving hydrolysis resistance of polymer. The excellent mobility control coupled with the pronounced antiaging property compared to KYPAM6210 allows S-HPAM to improve swept volume and lead up to the oil recovery rate of 22.8% above waterflooding. In general, the oil recovery rate of S-HPAM is 4.1% higher than KYPAM6210. Therefore, S-HPAM shows excellent potential to enhance oil recovery from high-temperature and high mineralization reservoirs.
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Acknowledgements
We acknowledge the financial support from Guangxi Colleges and Universities Key Laboratory of Beibu Gulf Oil and Natural Gas Resource Effective Utilization (2017KLOG17) and Jiangsu Oilfield Company of SINOPEC (JS16026). We also thank Beijing Research Institute of Chemical Industry and Jiangsu Oilfield Company for providing polymer and oil samples.
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Yang, F. (2019). Flow Characteristics of Two Temperature-Tolerant and Salt-Resistant Polymers in Porous Media. In: Shemwell, S., Lin, J. (eds) Proceedings of the International Petroleum and Petrochemical Technology Conference 2018. IPPTC 2018. Springer, Singapore. https://doi.org/10.1007/978-981-13-2173-3_4
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DOI: https://doi.org/10.1007/978-981-13-2173-3_4
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