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Pexovis 553

Solids free polymeric viscosifier for oil and synthetic muds

Chemistry Type: Polymeric viscosifier

Function(s): Drilling Fluid Additives

Pexovis 553 polymeric viscosifier for oil and synthetic based drilling muds offers an engineered rheological profile to provide low equivalent circulating densities (ECDs) at low concentrations with greater suspension properties and excellent hole cleaning. Suitable for use in drilling fluids at bottomhole temperatures up to 260 °C (500 °F).

Previously sold under the Viscodrill 12 name.

Key Advantages

  • Engineered rheological profile with low concentrations to provide low ECDs with greater suspension properties and excellent hole cleaning
  • Increases low-shear-rate viscosities (LSRV) and gel strengths for improved hole cleaning in deviated wells
  • Solids free viscosifier allowing higher rates of penetration without the need of weighting agents
  • Real-time response with no wait time for rheology modifiers to yield (i.e., no need for multiple mud circulations)
Specific Gravity
1.00 @ room temperature (RT)
Active Ingredient (by weight)
35 - 40 %
6.5 - 8.0
Insoluble In
Mechanical Stability
Loading Level
Normal loading ranges from 0.5 to 5.0 lb/bbl (1.43 to 14.3 kg/m3) depending on brine concentration

Product Availability

North America, Latin America, China, Asia (excl. China, incl. India), South Pacific, EMEA (Europe, Middle East, Africa)

Contact Us for individual country availability.

Related Documents & Downloads

OMNOVA Chemical Technical Data Sheet
OMNOVA Chemical Regulatory Data Sheet
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