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Additive for retardation of cement slurry at ultrahigh static temperatures in a well, on the basis of a mixture of synthetic polymers.
Application:in oil and gas industry in processes of well cementing in order to increase the period of fluidity and setting of cement slurry, improve its rheological properties.
Recommended consumption: added to the fluid for hydration or mixed to the cement in dry form. The recommended concentration range of the additive is 0.03–0.15% to the mass of dry cement. Concentration should be selected according to a definite formulation and parameters.
|The name of indicators||Normative value|
|Appearance at 20 °С||Powdery substance, which can be white and up to yellow|
|Bulk weight, g/cm³||0,8-1,15|
|Potential of hydrogen (pH) of water solution, w/w 1 % units.||6-8|