期刊
FUEL
卷 293, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2021.120459
关键词
Surfactant; Enhanced Oil Recovery; Retention; Adsorption; Carbonate; Sandstone
资金
- College of Petroleum Engineering & Geoscience (CPG) at KFUPM
- University of Texas at Austin
Surfactants are essential in cEOR, but the challenge of surfactant loss during flooding through reservoir rock remains. This review focuses on mechanisms, measurement techniques, and strategies to minimize surfactant retention on various rock/mineral types, with alkalis and other chemicals being explored as potential solutions. Factors influencing the minimization of surfactant retention are also discussed in this review.
Surfactants play a vital role in chemical enhanced oil recovery (cEOR). The amount of surfactant loss caused by retention during flooding through reservoir rock is still a challenge in surfactant-based cEOR techniques, and directly impacts the economics of a cEOR project. This review focuses on the mechanisms behind the retention of several surfactants on different rock/mineral types such as sandstone, carbonates, quartz, kaolinite, calcite, etc. Measurement techniques of surfactant retention reported in the literature are also presented. Lastly, this review illustrates retention minimization strategies for different types of surfactants. Alkalis have been widely examined in minimizing surfactant retention, mostly in sandstones. Other chemicals such as ammonia, nano-particles, ionic liquids, polymers, and sacrificial agents have also been used to reduce surfactant retention. This review also discusses the influencing factors that can significantly impact the strategy to minimize surfactant retention.
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