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PAC R 95
Description
PAC R 95 filtration control agent is used in most water-based drilling fluids, can provide secondary viscosity and is effective even at low concentrations. It is suitable for use in fresh water, salt water and brine-based fluids. PAC R 95 filtrate reducer is stable to 300°F (149°C), non-toxic and does not require a biocide. PAC filtrate reducer products are premium quality fluid loss control products providing superior performance to most other products in their class. PAC R 95 filtrate reducer is readily available in the Eastern Hemisphere and meets the European specifications for regular viscosity polyanionic cellulose.
Applications
Ø Helps control filtration rates
Ø Helps retard shale swelling and disintegration
Ø Helps provide supplementary viscosity in fresh water, sea water, and brine-based fluids
Advantages
Ø Effective in fresh water, salt water, and brine-based fluids
Ø Effective in small concentrations for viscosity and filtration control
Ø Stable at temperatures up to 300°F (149°C)
Ø Effective in moderate to high pH systems
Ø Non-toxic
Ø Does not require a bactericide
TYPICAL PROPERTIES
| Appearance | White or tan powder |
| Bulk Density | 40 to 55lb/ft³ |
| Bulk Density | 641 to 881kg/m³ |
| pH, (1 % aqueous solution) | 8.0 |
Recommended Treatment
Add 0.5-3.0 lb/bbl (1.43-8.56 kg/m³) of PAC R 95 filtration control agent slowly through the hopper.
Packaging and Storage
PAC R 95 filtration control agent is packaged in 25-kg (55.1-lb) sacks
Poly Anionic Cellulose PAC R 95%