Drilling fluid

C - Chemistry – Metallurgy – 09 – K

Patent

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31/30

C09K 8/26 (2006.01)

Patent

CA 1271320

A B S T R A C T DRILLING FLUID A drilling fluid comprising a stable oil in water emulsion consisting of a) 50-96 %v aqueous phase b) 3-40 %v oil phase c) 1-10 %v of at least one surfactant belonging to the class of a) ethoxylated amines; b) ethoxylated diamines; and c) quaternary ethoxylated ammonium salts.

552823

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