D600G GASBLOK™ gas migration control additive is a latex additive that forms an impermeable barrier to prevent formation gas intrusion. This innovative product consists of an aqueous dispersion containing solid polymer particles and surfactants, effectively blocking gas migration into the cement slurry during its critical hydration phase. In addition to enhancing the cement bond with casing and formation interfaces to control gas migration, the D600G GASBLOK additive also creates a thin, low-permeability filtercake that minimizes fluid loss from the cement slurry.

Typical bottomhole circulating temperature (BHCT) range for this additive is from 150 to 300 degF [66 to 149 degC]. D600G GASBLOK additive can be used in slurries with density ranges from 8 to 23 lbm/galUS [960 to 2,760 kg/m3]. Temperature and density extensions are possible with laboratory testing to ensure the slurry meets the required properties.

• Control of severe annular gas migration during primary and remedial cementing
• Wells with a narrow window between pore and fracture pressure
• Typical BHCTs from 150 to 300 degF [66 to 149 degC], with extension possible with laboratory testing
• Slurries with densities ranging from 8 to 23 lbm/galUS [960 to 2,760 kg/m3], with extension possible with laboratory testing
• Freshwater or seawater applications