Dual Spacer™ Surfactant B

Dual Spacer™ Surfactant B is commonly used in water-based spacers to water-wet casing and help displace oil-based drilling fluids from the wellbore. Dual Spacer Surfactant B is a clear liquid packaged in a 5-gallon can. It can be used at temperatures up to 500°F (260°C) when used in a properly designed blend of surfactants. It is normally used at a concentration of 0.2 to 2 gal/bbl.

Dual Spacer B surfactant offers the following benefits:

  • Helps reduce interfacial viscosity.
  • Preferentially water-wets the pipe surface and helps promote better cement bonding.
  • Can be used as a single, water-wetting surfactant even if interfacial viscosity is not a problem.
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