Petroleum Science >2023,??Issue2:??- DOI: https://doi.org/10.1016/j.petsci.2023.02.002
Polymer flooding: Current status and future directions Open?Access
文章信息
作者：R.S. Seright, Dongmei Wang
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引用方式：R.S. Seright, Dongmei Wang, Polymer flooding: Current status and future directions, Petroleum Science, Volume 20, Issue 2, 2023, Pages 910-921, https://doi.org/10.1016/j.petsci.2023.02.002.
文章摘要
Abstract: This review presents our perspective on the factors that have brought polymer flooding to its current state. Insights are provided on why HPAM is the dominant polymer used as well as what is needed to make alternative polymers and mobility-control methods viable. Explanation is given for why large polymer banks are needed for polymer flooding, and design of the injected polymer viscosity is detailed for cases with/without crossflow. The role of fractures and horizontal wells are discussed for improving injectivity and extending polymer flooding to recover oils with viscosities as high as 10,000?cP. Operational improvements are described to minimize mechanical and oxidative stability to allow HPAM polymers to be viable to 70?°C and ATBS polymers to 120?°C. Key factors affecting polymer retention are summarized. The paper points out unresolved issues and future directions for polymer flooding.
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Keywords: Polymer flooding; Reservoir sweep improvement