Spacer fluids

Details Spacer fluids Spacer fluids

1989-11-27

1991-07-09

Stoll, Robert L.

Compositions

Leather or fur treating

166291, E21B 3316, F17D 112

Patent

active

050303660

ABSTRACT:
Spacer fluids providing an effective buffer between drilling fluids and cement slurries during well completion. The spacer fluids comprise a sulfonated styrene copolymer dispersant and one or more additional components such as surfactants, viscosifiers and weighting materials to form a rheologically compatible fluid between the drilling fluid and the cement slurry.

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