IMPROVED CLAY, CLAY SHALE INHIBITION AGENT AND APPLICATION METHOD

摘要

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