Delament-250
Delament-250 retarder is a non-lignosulfonate cement retarder that helps simplify the design of thixotropic slurries. Delament-250 retarder is effective in freshwater slurries at bottom-hole circulating temperatures (BHCTs) up to 250°F (121°C). In saturated salt slurries, this retarder can be used at BHCTs between 250°F and 350°F (121°C and 177°C, respectively). When combined with certain retarder-enhancing agents, Delament-250 retarder can be used in freshwater cement systems at BHCTs as high as 430°F (221°C). When used with Delament-9 additive, Delament-23 additive, or Delament-766 additive, Delament-250 retarder helps the cement slurry become thixotropic. When thixotropy is not required, Delament-250 retarder can be used with any fluid-loss additive to help bridge temperature gaps.
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