Fluid spacer composition for use in well cementing

Details Fluid spacer composition for use in well cementing Fluid spacer composition for use in well cementing

C - Chemistry, Metallurgy

09

K

31/16, 166/17

C09K 8/42 (2006.01)

Patent

CA 1228721

FLUID SPACER COMPOSITION FOR USE IN WELL CEMENTING Abstract of the Disclosure The present invention relates to an aqueous com- position and method for substantially preventing contact between non-compatible hydrocarbonaceous and aqueous fluids employing an aqueous spacer composition. The composition comprises an aqueous fluid, an admixture of nonylphenols and at least one member selected from the group of a sulfonated linear C8 to C18 straight chain alcohol ethoxylated with an average of from about 2 to about 20 moles of ethylene oxide, a low molecular weight aliphatic glycol ether containing from about 3 to about 12 carbon atoms and an alcohol con- taining from about 3 to about 8 carbon atoms ethoxylated with an average of 2 to 4 moles of ethylene oxide.

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