LTR can be used in cement slurries as either a dispersant in cement to increase compressive strength or as a retarder to delay the setting of the cement. LTR is effective with all Portland cements and generally added in concentrations from 0.1% and 2.5% by weight of cement. The sodium lignosulfonates…


Sodium Glucoheptonate

Sodium Glucoheptonate is a product designed to extend the thickening time of oilwell cement slurries up to ~120°C BHCT. This retarder can be used in all normal Canadian cements, and is compatible with standard chemicals such as fluid loss additives, dispersants, silica flour, defoamers,…