Spacer fluid

E - Fixed Constructions – 21 – B

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31/26

E21B 43/22 (2006.01) C09K 8/42 (2006.01) C09K 8/60 (2006.01) E21B 33/16 (2006.01)

Patent

CA 1280587

3395P/1126A K-2085 TITLE OF THE INVENTION SPACER FLUID ABSTRACT OF THE INVENTION A spacer fluid for use in oil well drilling applications is disclosed. The fluid is prepared from a slurry comprising 25-60% heteropolysaccharide S-130, 0.5-6% organophilic clay, 30-70% solvent, up to 10% surfactant, and up to 6% methanol or isopropanol.

534827

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