Organic corrosion inhibitor package for organic acids

Details Organic corrosion inhibitor package for organic acids Organic corrosion inhibitor package for organic acids

C - Chemistry, Metallurgy

09

K

C09K 8/528 (2006.01) C09K 8/74 (2006.01) C23F 11/04 (2006.01)

Patent

CA 2720382

An acidizing composition useful for treating a subterranean hydrocarbon producing formation and removing scale from oilfield equipment, the composition including: an acid; water; and an effective amount of a corrosion inhibitor composition including: at least one mercapto-compound; and at least one alkoxylated acetylenic alcohol. Also disclosed are methods for removing scale from metal surfaces and for treating a subterranean hydrocarbon producing formation with such an acidizing composition whereby the corrosive effects of the acidizing composition on metal surfaces in contact therewith are reduced.

L'invention porte sur une composition d'acidification utile pour le traitement d'une formation souterraine de production d'hydrocarbures et l'élimination de tartre à partir d'un équipement de champ pétrolifère, la composition comprenant : un acide ; de l'eau ; et une quantité efficace d'une composition d'inhibiteurs de corrosion comprenant : au moins un composé mercapto ; et au moins un alcool acétylénique alcoxylé. L'invention porte également sur des procédés d'élimination de tartre à partir de surfaces métalliques et pour le traitement d'une formation souterraine de production d'hydrocarbures par une telle composition d'acidification, ce par quoi les effets corrosifs de la composition d'acidification sur les surfaces métalliques en contact avec elle sont réduits.

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