High polymer content hybrid drag reducers

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 33/06 (2006.01) C08J 5/16 (2006.01) C08L 23/00 (2006.01)

Patent

CA 2702759

A drag reducing composition comprising particles of at least two different drag reducing polymers. The different drag reducing polymers can be formed by different processes, such as bulk polymerization or emulsion polymerization, and the particles of the different drag reducing polymers can have different mean particle sizes. The drag reducing compositions 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 des particules d'au moins deux polymères réducteurs de traînée différents. Les polymères réducteurs de traînée différents peuvent être formés par différents procédés, tels que la polymérisation en masse ou la polymérisation en émulsion, et les particules des différents polymères réducteurs de traînée peuvent avoir différentes dimensions moyennes de particule. Les compositions de réduction de traînée peuvent être ajoutées 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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