Ultra Seal XP

ULTRA SEAL® XP is a blend of specific micro-sized cellulosic fibers combined with a blend of organic polymers and lubricity enhancers that are designed to aid in the control of fluid losses to the well bore, as well as to promote the anti-friction characteristics of a drilling fluid. ULTRA SEAL® XP seals off low pressure zones, which in turn reduces the rotary torque and drill string drag present in differential pressure environments. ULTRA SEAL® XP is coated with a mineral oil, and compatible with both OBM and WBM systems. 


  • Average particle size: 46.5 microns
  • No rheology issues
  • 95% success rate


Ultra Seal® XP has been used by major operators in the Gulf of Mexico for the following applications:
  1. Loss Circulation Material: Helped seal off sections of the hole that were losing partial mud returns.
  2. Torque and Drag Reducer: Has reduced torque and drag in high angle holes across sand zones.
  3. Sealing Depleted Sands: While drilling depleted sands and having differential sticking problems, Ultra Seal® XP and Ultra Seal® C helped seal those sands and prevented sticking.
  4. Running Casing in High Angle Holes: Ran casing after spotting Ultra Seal® XP across sand zones. Had no problems running casing in a 78 degree deviated hole and got full cement returns, which had not been seen in other similar jobs