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Production of Polymer Particles Loaded with Corrosion Inhibitor for Applications in Oil Wells
Author(s) -
S. Miranda Letícia,
Nele Márcio,
Pinto José Carlos
Publication year - 2019
Publication title -
macromolecular reaction engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 32
eISSN - 1862-8338
pISSN - 1862-832X
DOI - 10.1002/mren.201900027
Subject(s) - corrosion , emulsion , emulsion polymerization , polymer , aqueous solution , styrene , chemical engineering , produced water , materials science , polymerization , dispersion (optics) , chemistry , organic chemistry , environmental science , metallurgy , composite material , environmental engineering , copolymer , physics , optics , engineering
During petroleum exploration, the use of corrosion inhibitors is necessary to reduce equipment maintenance costs, to guarantee the operation safety, and to make process operation more robust. For this reason, the present manuscript investigates the production of polymer particles loaded with a commercial corrosion inhibitor intended for controlled release applications in oil wells. The process comprises two steps: the first step regards the water‐in‐oil (W/O) heterogeneous styrene polymerization, while the second step involves the water‐in‐oil‐in‐water (W/O/W) styrene polymerization, prepared through dispersion of the W/O emulsion obtained in the first step in an aqueous medium. The results reveal that the morphologies of the produced particles are significantly affected by the analyzed process operation variables, such as reaction time, temperature, and feed ratios. Particularly, the duration of the first reaction step strongly influences the obtained particle size distributions and the encapsulation efficiencies. Finally, it is shown that the encapsulated inhibitor is released slowly in aqueous saline media.