Abrégé

Bismuth-based alloys comprising at least about 50% by weight bismuth, about 30 to about 35% by weight tin, and about 1.8 to about 2.8% by weight antimony; and an alloy of bismuth and silver comprising about 90 to about 97% by weight bismuth and about 3 to about 9% by weight silver. A plug comprising an alloy of bismuth, tin, and antimony; and a plug comprising an alloy of bismuth and silver. A method of using a plug made from a bismuth-based alloy to seal a well, wherein a length of a well is filled with the molten alloy and the molten alloy is allowed to solidify.

Classes IPC  ?

• E21B 33/134 - Bouchons d'étrésillon
• C22C 12/00 - Alliages à base d'antimoine ou de bismuth

Abrégé

A method of and apparatus for repairing a defect in a surface are provided, the method comprising the steps of a) providing a bolus of an at least partially liquid alloy in a charge chamber, the charge chamber having a closable outlet and a closable pressure inlet; b) introducing a pressurized fluid to the charge chamber via the pressure inlet and accelerating the bolus such that the bolus is ejected from the charge chamber via the outlet; c) directing the bolus along a pathway between the charge chamber and the defect such that the bolus contacts the defect; and d) solidifying the at least partially liquid alloy while it is contact with the defect.

Classes IPC  ?

• B22F 10/22 - Dépôt direct de métal fondu
• B23P 6/00 - Remise en état ou réparation des objets
• C23C 4/06 - Matériaux métalliques
• C23C 4/08 - Matériaux métalliques ne contenant que des éléments métalliques
• C23C 4/123 - Pulvérisation de métal fondu
• B05C 11/10 - Stockage, débit ou réglage du liquide ou d'un autre matériau fluideRécupération de l'excès de liquide ou d'un autre matériau fluide
• B05B 12/06 - Aménagements de commande de la distributionAménagements de réglage de l’aire de pulvérisation pour la commande de la durée ou de la succession des distributions pour réaliser un écoulement pulsatoire

Abrégé

Bismuth-based alloys comprising at least about 50% by weight bismuth, about 30 to about 35% by weight tin, and about 1.8 to about 2.8% by weight antimony; and an alloy of bismuth and silver comprising about 90 to about 97% by weight bismuth and about 3 to about 9% by weight silver. A plug comprising an alloy of bismuth, tin, and antimony; and a plug comprising an alloy of bismuth and silver. A method of using a plug made from a bismuth-based alloy to seal a well, wherein a length of a well is filled with the molten alloy and the molten alloy is allowed to solidify.

Classes IPC  ?

• E21B 33/134 - Bouchons d'étrésillon
• C22C 12/00 - Alliages à base d'antimoine ou de bismuth

Abrégé

A method of sealing a surface is provided, the method comprising the steps of providing a metallic composition; providing a propellant; heating the metallic composition to above the melting point of the metallic composition to provide at least partially liquid metallic composition; accelerating the at least partially liquid metallic composition towards the surface by means of the propellant; and applying the at least partially liquid metallic composition to the surface.

Classes IPC  ?

• C23C 4/06 - Matériaux métalliques
• C23C 4/08 - Matériaux métalliques ne contenant que des éléments métalliques
• C23C 4/123 - Pulvérisation de métal fondu
• G21F 1/00 - Blindage caractérisé par la composition du matériau

Abrégé

Bismuth-based alloys and the use of plugs made from such alloys to seal wells as well as the plugs themselves are provided. There is provided an alloy of bismuth, tin, and antimony comprising at least about 50% by weight bismuth, about 30 to about 35% by weight tin, and about 1.8 to about 2.8% by weight antimony; and an alloy of bismuth and silver comprising about 91 to about 97% by weight bismuth and about 3 to about 9% by weight silver. There is also provided a method for producing a plug comprising an alloy of bismuth, tin, and antimony; and a method for producing a plug comprising an alloy of bismuth and silver; wherein a length of a well is filled with the molten alloy and the molten alloy is allowed to solidify.

Classes IPC  ?

• C22C 12/00 - Alliages à base d'antimoine ou de bismuth
• E21B 33/12 - PackersBouchons

Abrégé

A method of sealing a surface is provided, the method comprising the steps of providing a metallic composition; providing a propellant; heating the metallic composition to above the melting point of the metallic composition to provide at least partially liquid metallic composition; accelerating the at least partially liquid metallic composition towards the surface by means of the propellant; and applying the at least partially liquid metallic composition to the surface.

Classes IPC  ?

• C23C 4/06 - Matériaux métalliques
• C23C 4/08 - Matériaux métalliques ne contenant que des éléments métalliques
• C23C 4/123 - Pulvérisation de métal fondu
• G21F 1/00 - Blindage caractérisé par la composition du matériau

Abrégé

Bismuth-based alloys and the use of plugs made from such alloys to seal wells as well as the plugs themselves are provided. There is provided an alloy of bismuth, tin, and antimony comprising at least about 50% by weight bismuth, about 30 to about 35% by weight tin, and about 1.8 to about 2.8% by weight antimony; and an alloy of bismuth and silver comprising about 91 to about 97% by weight bismuth and about 3 to about 9% by weight silver. There is also provided a method for producing a plug comprising an alloy of bismuth, tin, and antimony; and a method for producing a plug comprising an alloy of bismuth and silver; wherein a length of a well is filled with the molten alloy and the molten alloy is allowed to solidify.

Classes IPC  ?

• C22C 12/00 - Alliages à base d'antimoine ou de bismuth
• E21B 33/12 - PackersBouchons