Synergistic Gas Hydrate and Corrosion Inhibition Using Maleic Anhydride: N-Isopropylmethacrylamide Copolymer and Small Thiols
Janronel Pomicpic,
Malcolm A. Kelland
Abstract:Kinetic gas hydrate inhibitors (KHIs) are often used
in combination
with film-forming corrosion inhibitors (CIs) in oilfield production
flow lines. However, CIs can be antagonistic to KHI performance. In
this study, maleic anhydride-co-N-isopropylmethacrylamide copolymer (MA:NIPMAM) and its derivatives
were successfully synthesized and tested for gas hydrate and corrosion
inhibition. KHI slow constant cooling (1 °C/h) screening tests
in high-pressure rocking cells with synthetic natural gas and CO2 corrosion b… Show more
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