A high-strength, alumina-based solid scale inhibitor was developed for subsea applications. Laboratory elution tests show that this solid inhibitor has a nearly constant inhibitor release-rate profile in the long term. The strength of this solid inhibitor is comparable with high strength proppant, and the smallest particles generated were 135 μm as the mixture of 20 wt. %.

This material was applied to four zones in two deepwater Gulf of Mexico wells. After 17 months of production, the wells were still producing inhibitor above the MEC, and the cumulated water/oil production was approximately 1.1MM bbl and 7.8MM bbl respectively.

Subject
Water, Inhibitor performance, Substrates, Solids, Scale inhibitors, Fractures, Mixtures, Pores, Chemical inhibition, Meshes, Fluids, Inhibitor treatment, Corrosion inhibitors
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2018
Association for Materials Protection and Performance (AMPP)
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