Low dosage kinetic hydrate inhibitors for natural gas production systems

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United States of America Patent

PATENT NO 9145465
APP PUB NO 20130098623A1
SERIAL NO

13648491

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Abstract

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Copolymers containing acryloylmorpholine and vinylimidazole, and optionally vinylcaprolactam and/or n-vinyl pyrrolidone, have shown superior results in hydrate inhibition tests at conditions of 7° C. subcooling dosed at 1 vol % based on the water cut of the system fluids. The copolymer product has also passed high TDS (total dissolved solids) brine compatibility tests and secondary property tests including foaming and hot injection tests which make it useful as a kinetic hydrate inhibitor in gas production systems susceptible to the formation of natural gas hydrates.

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Patent Owner(s)

Patent OwnerAddress
BAKER HUGHES INCORPORATED2929 ALLEN PARKWAY SUITE 2100 HOUSTON TX 77019-2118

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lehmann, Marc N Houston, US 14 96
Rivers, Gordon T Houston, US 37 419
Spencer, Howard James Liverpool, GB 4 29
Squicciarini, Michael P Richmond, US 11 113
Virdee, Ravinder Liverpool, GB 4 29

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