IMPROVED CLAY, CLAY SHALE INHIBITION AGENT AND APPLICATION METHOD Russian patent published in 2016 - IPC C09K8/22 C09K8/35

Abstract RU 2598102 C2

FIELD: mining.

SUBSTANCE: group of inventions relates to drilling industry. Composition of drilling mud on water base contains: water-based dispersion medium; reactive clay or shale material; agent for inhibiting hydration of shale, having formula , R is CH₃; R₁ is CH₃; R₂ is CH₃; R₃ is -CH₂CH₂OH; -CH(CH₂OH)₂; or -C(CH₂OH)₃; and X is a chloride; where agent for inhibiting hydration of shale is present in concentration sufficient to reduce reaction capacity of clay or shale.

EFFECT: technical result is increased efficiency of inhibiting clay instability.

6 cl, 1 tbl

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RU 2 598 102 C2

Authors

Vitam Koul A.

Divenport Dzhozef L.

Pojndekster Majkl K.

Dates

2016-09-20—Published

2013-07-16—Filed