Vinyllactam copolymers used as gas hydrate inhibitors

Details Vinyllactam copolymers used as gas hydrate inhibitors Vinyllactam copolymers used as gas hydrate inhibitors

E - Fixed Constructions

21

B

E21B 37/06 (2006.01) C09K 8/52 (2006.01)

Patent

CA 2504834

The invention relates to the use of copolymers as gas hydrate inhibitors, whereby these copolymers are synthesized from: 40 to 99.5 % by weight of at least one ethylenically unsaturated cyclic lactam A; 0.5 to 60 % by weight of monomers B having a solubility in water of less than 10 parts by weight of monomers in 100 parts by weight of water, and; 0 to 50 % by weight of other monomers C.

L'invention concerne l'utilisation de copolymérisats comme inhibiteurs d'hydrates de gaz, lesquels copolymérisats sont constitués de 40 à 99,5 % en poids d'au moins un lactame A cyclique éthyléniquement insaturé, de 0,5 à 60 % en poids de monomères B, présentant une solubilité dans l'eau inférieure à 10 parties en poids de monomère dans 100 parties en poids d'eau, et de 0 à 50 % en poids d'autres monomères C.

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