ALKYLATED POLYETHERAMINES AS CLAY STABILIZING AGENTS Russian patent published in 2018 - IPC C09K8/35 C09K8/04 C09K8/60 E21B43/22 E21B43/26

Abstract RU 2647529 C2

FIELD: chemistry.

SUBSTANCE: group of inventions relates to well treatment. Water-based well treatment fluid contains an aqueous continuous phase, clay stabilizing agent consisting of an alkylated polyetheramine and a weighting material. Alkylated polyetheramine is a compound having the formula (I) where R is C₂H₄, R₁ is a straight chain or branched C₁-C₆ alkyl group, x is an integer from 1 to 3.

EFFECT: technical result is suppression of swelling and/or migration of fines, stability,

handling properties and well treatment fluid safety.

11 cl, 1 tbl

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RU 2 647 529 C2

Authors

Pakulski Marek

Forkner Mettyu V.

Dates

2018-03-16—Published

2013-11-04—Filed