Oil & Gas Offshore Drilling rig in ocean

Pexoseal 731

Bio-based copolymer latex for aqueous drilling fluids

Chemistry Type: Styrene butadiene copolymer (SB)

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

Pexoseal 731 latex 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 177 °C (350 °F). Designed for use in high temperature, high pressure (HTHP) environments.

Previously sold as GenCeal DF 8900.

Key Advantages

  • Organic colloidal soft nanoparticles, deformable and compressible, reduce non-productive time
  • High tolerance to salts and multivalent ions and acids
  • Plug nanosized pores to reduce permeability of filtercake in tight formations
  • Sealing additive for wellbore stability
  • Over time, the emulsion can form a film in the filtercake at high temperatures, strengthening the wellbore
  • For high performance water-based drilling fluids in fresh or salt water at bottomhole temperatures up to 177 °C (350 °F)
Physical Form
Specific Gravity

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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