A corrosion inhibitor composition, containing (a) a cinnamaldehyde compound, (b) an alkoxylated fatty amine, and (c) an imidazoline compound, and optionally (d) a surfactant, and (e) a solvent. A method of inhibiting corrosion of metal in contact with an acidic medium in an oil or gas field environment by introducing the corrosion inhibitor composition into the acidic medium, such as during acid stimulation operations.
C09K 8/54 - Compositions pour inhiber in situ la corrosion dans les puits ou les trous de forage
C09K 8/60 - Compositions pour activer la production en agissant sur la formation souterraine
C09K 8/74 - Produits chimiques érosifs, p. ex. acides combinés avec des additifs ajoutés à des fins spécifiques
C23F 11/04 - Inhibition de la corrosion de matériaux métalliques par application d'inhibiteurs sur la surface menacée par la corrosion ou par addition d'inhibiteurs à l'agent corrosif dans des liquides à réaction acide marquée
A method of inhibiting corrosion of metal in contact with a corrosive mixture in an oil or gas field environment involving introducing a corrosion inhibitor composition into the corrosive mixture, the corrosion inhibitor composition including a nitrogen-containing compound having an alkyl amine group or an alkyl quaternary ammonium salt group, and at least one sulfur-containing compound selected from the group consisting of mercaptobenzothiazole, mercaptobenzoimidazole, a thioglycol compound, and a thiourea compound.
C09K 8/54 - Compositions pour inhiber in situ la corrosion dans les puits ou les trous de forage
C09K 15/18 - Compositions anti-oxydantesCompositions inhibant les modifications chimiques contenant des composés organiques contenant de l'azote contenant une fraction amine ou imine
C09K 15/26 - Compositions anti-oxydantesCompositions inhibant les modifications chimiques contenant des composés organiques contenant de l'azote et du soufre
A corrosion inhibitor composition, containing (a) a cinnamaldehyde compound, (b) an alkoxylated fatty amine, and (c) an imidazoline compound, and optionally (d) a surfactant, and (e) a solvent. A method of inhibiting corrosion of metal in contact with an acidic medium in an oil or gas field environment by introducing the corrosion inhibitor composition into the acidic medium, such as during acid stimulation operations.
C09K 8/54 - Compositions pour inhiber in situ la corrosion dans les puits ou les trous de forage
C23F 11/04 - Inhibition de la corrosion de matériaux métalliques par application d'inhibiteurs sur la surface menacée par la corrosion ou par addition d'inhibiteurs à l'agent corrosif dans des liquides à réaction acide marquée
A method of inhibiting corrosion of metal in contact with a corrosive mixture in an oil or gas field environment involving introducing a corrosion inhibitor composition into the corrosive mixture, the corrosion inhibitor composition including a nitrogen-containing compound having an alkyl amine group or an alkyl quaternary ammonium salt group, and at least one sulfur-containing compound selected from the group consisting of mercaptobenzothiazole, mercaptobenzoimidazole, a thioglycol compound, and a thiourea compound.
C23F 11/00 - Inhibition de la corrosion de matériaux métalliques par application d'inhibiteurs sur la surface menacée par la corrosion ou par addition d'inhibiteurs à l'agent corrosif
C23F 11/10 - Inhibition de la corrosion de matériaux métalliques par application d'inhibiteurs sur la surface menacée par la corrosion ou par addition d'inhibiteurs à l'agent corrosif dans d'autres liquides au moyen d'inhibiteurs organiques
C09K 8/52 - Compositions pour éviter, limiter ou éliminer les dépôts, p. ex. pour le nettoyage
C09K 8/54 - Compositions pour inhiber in situ la corrosion dans les puits ou les trous de forage
C09K 15/26 - Compositions anti-oxydantesCompositions inhibant les modifications chimiques contenant des composés organiques contenant de l'azote et du soufre
5.
Easily dispersible polymer powder for hydrocarbon extraction
A dry polymer powder for use in enhanced petroleum recovery without being prehydrated before being added to water or brine to be introduced into a wellhead. The dry polymer powder consisting of at least one of a polyacrylamide, a copolymer of acrylamide and acrylic acid, a galactomannan, or cellulosic polymer or derivatives thereof, and the polymer can be crosslinked or not crosslinked, provided that if they are homo- or co-polymers of acrylic acid, they are not crosslinked. The dry polymer powder has a polymer size range distribution of 6.6%<40 mesh and 85.4% of 40 to 200 mesh and 8%>200 mesh, and wherein the polymer size range ensures that the dry polymer powder will efficiently hydrate in the water or brine within about one minute without forming fisheyes.
C09K 8/588 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c.-à-d. pour améliorer la mobilité de l'huile, p. ex. fluides de déplacement caractérisées par l'utilisation de polymères spécifiques
C09K 8/528 - Compositions pour éviter, limiter ou éliminer les dépôts, p. ex. pour le nettoyage les dépôts inorganiques, p. ex. sulfates ou carbonates
C09K 8/50 - Compositions pour le plâtrage des parois de trous de forage, c.-à-d. compositions pour la consolidation temporaire des parois des trous de forage
6.
Easily dispersible polymer powder for hydrocarbon extraction
A dry polymer powder for use in enhanced petroleum recovery without being prehydrated before being added to water or brine to be introduced into a wellhead. The dry polymer powder consisting of at least one of a polyacrylamide, a copolymer of acrylamide and acrylic acid, a functionalized derivatives thereof, a galactomannan, or cellulosic polymer or derivatives thereof, and the polymer can be crosslinked or not crosslinked, provided that if they are homo- or co-polymers of acrylic acid, they are not crosslinked. The dry polymer powder is sized between two size limits, namely at least about 85 wt % of particles of a size smaller than about 40-mesh, and at least 75 wt % of particles of a size greater than 200-mesh, which size range ensures that the dry polymer powder will efficiently hydrate in the water or brine within about one minute without forming fisheyes.
C09K 8/588 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c.-à-d. pour améliorer la mobilité de l'huile, p. ex. fluides de déplacement caractérisées par l'utilisation de polymères spécifiques
C09K 8/50 - Compositions pour le plâtrage des parois de trous de forage, c.-à-d. compositions pour la consolidation temporaire des parois des trous de forage
C09K 8/528 - Compositions pour éviter, limiter ou éliminer les dépôts, p. ex. pour le nettoyage les dépôts inorganiques, p. ex. sulfates ou carbonates
7.
EASILY DISPERSIBLE POLYMER POWDER FOR HYDROCARBON EXTRACTION
A dry polymer powder for enhanced petroleum recovery wherein the dry powder need not be prehydrated prior to being added to the water or brine introduced into a wellhead. The dry polymer powder consisting of at least one of a polyacrylamide, a copolymer of acrylamide and acrylic acid, a functionalized derivatives thereof, a galactomannan, or cellulosic polymer or derivatives thereof, and the polymer can be crosslinked or not crosslinked, provided that if they are homo- or co-polymers of acrylic acid, they are not crosslinked. The dry polymer powder is sized between two size limits, namely at least about 85 wt% of particles of a size smaller than about 40-mesh, and at least 75 wt% of particles of a size greater than 200-mesh, which size range ensures that the dry polymer powder will efficiently hydrate in the water or brine within about one minute without forming fisheyes.
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