oil and gas drill

Pexoseal 571PD

Bio-based copolymer for aqueous drilling fluids

Chemistry Type: Styrene butadiene copolymer (SB)

Function(s): Drilling Fluid Additives, Fluid Loss Control Additives

Pexoseal 571PD provides fluid loss control and wellbore stability for high performance water-based drilling fluids in fresh or salt water with application temperature range up to 232 °C (450 °F). Designed for use in high temperature, high pressure (HTHP) environments.

Previously sold as GenCeal DF 8800PD.

Key Advantages

  • Sealing micro-particles to reduce non-productive time and improve wellbore stability
  • Plugging pores to reduce permeability of filtercake
  • Readily dispersible in water and oils
  • Upon redispersion, high tolerance in salts, multivalent ions and acid
  • Flatter Yield Point response of formulated fluid at raising temperatures vs. organoclays
  • Sealing additive for oil- and wate-rbased muds for temperatures up to 177 °C (350 °F)
  • Off White
  • Yellow
Physical Form

Product Availability

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

Contact Us for individual country availability.

Related Documents & Downloads

OMNOVA Chemical Technical Data Sheet
OMNOVA Chemical Regulatory Data Sheet
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