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Patent
F - Mech Eng,Light,Heat,Weapons
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F17D 1/17 (2006.01) C09K 3/00 (2006.01) C10L 1/14 (2006.01) C10L 1/18 (2006.01) C10L 1/22 (2006.01) C10L 1/32 (2006.01) C10M 157/04 (2006.01) C10M 161/00 (2006.01) C10M 173/00 (2006.01) F17D 1/00 (2006.01)
Patent
CA 2556919
Polymeric nanoemulsions facilitate flow and reduce drag and friction in multiphase pipelines containing both oil and water (e.g., oil/water, oil/water/gas, oil/water/solids, and oil/water/gas/solids) such as are used for oil or gas production, gathering, and transmission; hydrotransport of oilsand or heavy oil slurries and the like. Specific examples of suitable drag reducing polymers include polyacrylamide. The emulsions have a hydrocarbon external phase, droplets of an aqueous internal phase having water-soluble polymer dissolved therein, where the droplets have an average particle size below about 200 nm, and at least one surfactant to form a stable nanoemulsion. The nanoemulsions advantageously have a low viscosity of about 200 cP or less.
Nanoémulsions polymères facilitant l'écoulement et limitant la traînée et la friction dans des canalisations multiphase contenant à la fois de l'huile et de l'eau (par exemple, huile/eau, huile/eau/gaz, huile/eau/solides ou huile/eau/gaz/solides) telles que celles qu'on utilise pour la production, le recueil et la transmission de mazout ou de pétrole, l'hydrotransport de sable contenant du mazout ou des boues de mazout lourd. Des exemples spécifiques de ces polymères consistent en polyacrylamide. Ces émulsions possèdent une phase hydrocarbure externe, des gouttelettes de phase aqueuse interne dans laquelle est dissous un polymère soluble dans l'eau, ces gouttelettes présentant une dimension moyenne de particule inférieure à 200 nm, et au moins un tensioactif permettant d'obtenir une nanoémulsion stable. Ces nanoémulsions possèdent avantageusement une viscosité basse égale ou inférieure à 200 cP.
Weghorn Steven Jeremy
Yang Jiang
Baker Hughes Incorporated
Sim & Mcburney
LandOfFree
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