The influence of stabilized colloidal reagent on the rheology of normal-density cement slurry

The article investigates the influence of stabilized colloidal reagents (SCR) on the rheological properties of normal-density cement slurries. It is shown that adding SCR in amounts of 0.5-1.0% of the cement weight reduces slurry fluidity, increases its viscosity, and improves thixotropic properties, which is particularly important for high-quality well cementing. Experimental results demonstrate that SCR enhances the adhesion of set cement to metal casings and improves drilling mud displacement from the annulus. The article also addresses the challenges of using lightweight cement slurries in the Extreme North conditions and proposes solutions, including reducing the water-cement ratio and optimizing slurry composition.