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An amine methyl phosphonate used as scale inhibitors. The performances of five different amine Me phosphonate-based scale inhibitors have been tested against sulfate and carbonate scale after thermal ageing at 160 °C, to determinate whether they can be applied in HP/HT reservoirs.

Pentaethylenehexamine-octakis(methylphosphonic acid) hexadecasodium salt solution is an amine methyl phosphonate used as scale inhibitors. The performances of five different amine Me phosphonate-based scale inhibitors have been tested against sulfate and carbonate scale after thermal ageing at 160 °C, to determinate whether they can be applied in HP/HT reservoirs.