Product Description

EvoVis® S high-temperature viscosifier is a water-soluble polymer designed to provide superior thermal stability in all types of water-based drilling fluids.

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  • Maintains solubility
  • Extremely tolerable to pH changes
  • Improves carrying capacity of fluids
  • Hydrates rapidly in water-based fluids


EvoVis S viscosifier can be used in all types of water-based drilling fluids, including those with high salt and calcium content. This product functions at any salinity and is particularly suited for use in high-temperature environments exceeding 240°F (116°C).

Treatment Recommendation

General treatment recommendations of EvoVis S viscosifier can range from 0.5-2.0 lb/bbl, based on salinity. Initial treatments are best determined by lab evaluation. This product can be mixed directly through the hopper.

Typical Physical Properties

Appearance:Solid, white granules
Water Solubility:Soluble in water

Handling and Storage

Minimize exposure to dust. Store in a cool, dry, wellventilated area. Use appropriate hygiene, clothing and personal protective equipment suitable for work done. Review the SDS thoroughly before using this product.


EvoVis® S is available in 25-pound (11.3-kilogram) multi-walled bags.

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