FLUID LOSS CONTROLLER

PDT-TROL

PDT-TROL, known as Gilsonite, should be added 6-9 lb/bbl as asphaltic fluid loss additive. Gilsonite has high temperature stability (400° F) whereas asphalt is not as temperature stable (250° F). High concentrations can cause excessive viscosity and gelation of the mud. 

Applications/Functions

  • Stabilize shales
  • Control fluid loss
  • Reduce fluid invasion through plugging mechanisms
  • Minimize differential sticking

Advantages

  • Improves fluid loss control
  • Provides optimum sealing and filtercake deposition
  • Mixes easily with water-based and oil-based fluids
  • Minimizes differential sticking