Abstract:Calcium sulfate scale is one of the major scales causing lots of serious operating problems in water injection and oil production. It is necessary to conduct effective treatment when calcium sulfate precipitation occurs. Phosphonate-based scale inhibitors (SIs) are commonly used to control mineral scaling. In this work, the performances for calcium sulfate inhibition by four phosphonate-based SIs were investigated in high salinity and high hardness waters. Experiments at elevated temperatures (65°C, 90°C and 1… Show more
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