A water-soluble polymer that rapidly hydrates when mixed with fresh water, forming a clear, viscous liquid. The dry polymer provides excellent wellbore stability through a coating (sealing) mechanism.
Component A: Added to the drilling unit in proportions determined according to the soil conditions at the site (typically ranging from 7 to 25 kg per cubic meter of mixture). Provides high rheological properties at low additive concentrations.
Component B: Added to drilling fluids at a ratio of 15–20 kg per ton of Component A to slow down the reaction of shale and clay formations and improve lubricating properties. It should be slowly introduced into the circulation system using a Venturi hopper (or ejector) to prevent lump formation and excessive consumption.