C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 5/14 (2006.01) C02F 5/04 (2006.01)
Patent
CA 2462417
A barium sulfate and/or calcium carbonate scale inhibitor composition is presented composed of a water-soluble polymer having incorporated phosphate functionality, the polymer being formed from at least one ethylenically unsaturated carboxylic acid monomer, at least one ethylenically unsaturated vinyl sulphonate monomer, or a mixture thereof. The scale inhibitor composition can also be used as a means of detecting the inhibitor composition in downhole and topside oilfield treatments by means that are faster and more accurate than turbidometric measurement.
La présente invention concerne une composition inhibitrice de dépôts de sulfate de baryum et/ou de carbonate de calcium. Cette composition est composée d'un polymère soluble dans l'eau avec des fonctionnalités de phosphate incorporées, ce polymère étant formé à partir d'au moins un monomère d'acide carboxylique éthyléniquement insaturé, d'au moins un monomère de sulfonate vinylique éthyléniquement insaturé ou d'un mélange de ceux-ci. On peut aussi utiliser cette composition inhibitrice de dépôts dans des traitements au fond ou à la surface de champs de pétrole par des moyens qui sont plus rapides et plus précis que des mesures turbidimétriques.
Crossman Martin
Holt Stuart Peter Robert
Akzo Nobel N.v.
National Starch And Chemical Investment Holding Corporation
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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