Disperse non-polyalphaolefin drag reducing polymers

C - Chemistry – Metallurgy – 08 – J

Patent

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C08J 3/00 (2006.01)

Patent

CA 2679848

A drag reducing composition comprising at least one non-polyalphaolefin polymer having an average particle size in the range of from about 5 to about 800 micrometers. The non-polyalphaolefin polymer can initially be formed via emulsion polymerization. The initial polymer particles can then be at least partially consolidated and then reduced in size and suspended in a carrier fluid. The resulting drag reducing composition can be added to a hydrocarbon-containing fluid to decrease the pressure drop associated with the turbulent flow of the hydrocarbon-containing fluid through a conduit.

L'invention porte sur une composition de réduction de traînée comprenant au moins un polymère non poly(alpha-oléfinique) ayant une dimension moyenne de particule se situant dans la plage d'environ 5 à environ 800 micromètres. Le polymère non poly(alpha-oléfinique) peut initialement être formé par polymérisation en émulsion. Les particules de polymère initial peuvent ensuite être au moins partiellement consolidées et puis réduites en dimension et mises en suspension dans un fluide vecteur. La composition de réduction de traînée résultante peut être ajoutée à un fluide contenant un hydrocarbure pour diminuer la perte de charge associée à l'écoulement turbulent du fluide contenant un hydrocarbure dans un conduit.

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