Invention Grant
US09534162B2 Organoclay compositions for drilling fluids useful to provide substantially constant rheology profiles to such fluids over a wide temperature range 有权
用于钻井液的有机粘土组合物可用于在宽温度范围内为这种流体提供基本恒定的流变学特性

Organoclay compositions for drilling fluids useful to provide substantially constant rheology profiles to such fluids over a wide temperature range
Abstract:
A method of providing a substantially constant rheological profile of an oil-based drilling fluid over a temperature range of about 120° F. to about 40° F., comprising adding drilling fluid additive to the drilling fluid, wherein the drilling fluid additive comprises an organoclay composition comprising: organoclay compositions where a phyllosilicate clay is exchanged with quaternary ammonium ions having a formula of [NR1R2R3R4]+ wherein at least one of R1, R2 and R3 is a mixture of branched alkyl groups.
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