A new, proppant-sized solid-scale inhibitor—with a substrate based on nan-otechnology—was recently applied in a deepwater Gulf of Mexico (GOM) frac-pack completion, to inhibit barium sulfate scale deposition for a high volume of cumulative water production. The inhibitor was used in a well, where the field design called for a sulfate-rich seawater flood to mix with a barium-rich connate water. The subsea oil well, in 1,700 ft of water, was frac-packed with 14,881 lb of proppant, of which 1,488 lb—or 10%-— were the new, solid-scale inhibitor.
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