Silicate-containing additives for well bore treatments and...

C - Chemistry – Metallurgy – 09 – K

Patent

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Details

IPC codes

C09K 8/03 (2006.01) C09K 8/52 (2006.01) C09K 8/524 (2006.01)

Type

Patent

Patent number

CA 2594173

Description

The present invention relates to methods and compositions for use in subterranean operations. More particularly, the present invention relates to additives comprising one or more silicates used to treat tar resident in a well bore, and methods of use. In one embodiment, the present invention provides a method of treating tar resident in a well bore comprising providing a tar-treating additive comprising one or more silicates introducing the tar- treating additive into the well bore; and allowing the tar-treating additive to react with the tar resident in the well bore so as to at least partially reduce the adhesiveness of the tar.

L'invention concerne des procédés et des compositions utilisés dans des opérations souterraines. En particulier, l'invention se rapporte à des additifs comprenant un ou plusieurs silicates utilisés pour traiter le goudron présent dans un puits de forage, et à des procédés d'utilisation de ces derniers. Dans un mode de réalisation, l'invention porte sur un procédé de traitement du goudron présent dans un puits de forage, qui consiste à former un additif de traitement du goudron comprenant un ou plusieurs silicates, à introduire l'additif de traitement du goudron dans le puits de forage, et à laisser l'additif de traitement du goudron réagir avec le goudron présent dans le puits de forage afin de réduire au moins en partie l'adhésivité du goudron.

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