期刊
COLLOIDS AND SURFACES B-BIOINTERFACES
卷 233, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.colsurfb.2023.113622
关键词
Polymer microspheres; Fluorescent polymer microspheres; Elastic polymer microspheres; Profile control; Oil displacement
This review provides an overview of the application of polymer microspheres in enhancing oil recovery levels in heterogeneous reservoirs. The specific structural and behavioral traits of different types of polymer microspheres, as well as their preparation methods and performance evaluation, are discussed. The current challenges and possible improvements in the functional application of polymer microspheres are also considered. This review will assist researchers in advancing the development of polymer microspheres for increased oil recovery in an economically and ecologically sustainable manner.
After long-term water injection, mature reservoirs are encountered with the adverse consequences of the treatment, including erosion, rock formation destruction and drastic decline in oil recovery rate for the past years. Today, the inexpensive and highly efficient polymer microspheres can be considered as a solution to the current issue with excess water production. Studies on practical utilization of polymer microspheres to plug highpermeability zones in heterogeneous reservoirs gained immense popularity in oil production lately. This review aims to give classification to polymer microspheres, including fluorescent polymer microspheres, low elastic polymer microspheres, viscoelastic polymer microspheres and nano-composite polymer microspheres and discuss the specific structural and behavioral traits of each polymer microsphere. Differences in preparation methods, comparisons of performance evaluation and oil recovery rate assessment were also studied. The current complications with functional application of polymer microspheres and its further improvements were considered. This review will provide assistance to the researchers with further advancements of the polymer microspheres, by effectively increasing the oil recovery levels in heterogeneous reservoirs, which will also meet the economical and ecological requirements of the oilfields.
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