D700 HT GASBLOK
Gas migration control additive
Prevent annular gas migration with surfactants for temperatures ranging from 250 to 350 degF [121 to 177 degC].
D600G GASBLOK gas migration control additive is an aqueous dispersion of latex particles with surfactants. The additive creates an impermeable barrier that prevents annular gas migration into the cement slurry during the critical hydration period. When formation gas enters the slurry, the latex particles coalesce to form a coherent, low-permeability plastic film that blocks further migration into the cement. The additive also controls gas migration by improving the cement bond to the casing and formation interfaces.
Additionally, the additive creates a thin, low-permeability filtercake that reduces fluid loss from the cement slurry.
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