VIS-STAR ULTRA
VIS-STAR ULTRA is a 40% active, high-molecular-weight anionic liquid polymer designed to provide cuttings encapsulation, fluid loss and shale stabilization. VIS-STAR ULTRA acts as a viscosifier, friction reducer and flocculant, and can be used in both fresh and saline make up water.
Application
VIS-STAR ULTRA polymer systems provide excellent cuttings encapsulation and improved wellbore stability in fresh, weighted, KCl or NaCl enhanced fluids. VIS-STAR ULTRA may be used in clear-water, solids-free drilling fluids. It increases viscosity, removes solids by flocculation, provides cuttings encapsulation and improved well-bore stability. In reduced- bentonite fluids, VIS-STAR ULTRA acts as a bentonite extender to increase viscosity, flocculates drill solids for more efficient removal, encapsulates solids and improves well-bore stability. VIS-STAR ULTRA viscous sweeps are effective for periodic hole cleaning.
Advantages
- Provides excellent cuttings encapsulation and limits cuttings dispersion
- Provides improved shale stabilization
- Enhances the removal of drill solids
- Mixes and yields easily
- Aids in preventing balling on the bit, stabilizers and bottom-hole assembly by coating and lubricating solids
Typical Usages
| Typical Amounts of VIS-STAR ULTRA Added to freshwater | |||
|---|---|---|---|
| Drilling Application | qt/100 gal | L/m3 | gal/bbl |
| Stabilizing water sensitive formations | 0.75 | 2 | 0.3 |
| Reducing torque/Increasing hole stability | 1 | 2.5 | 0.4 |
| Low-Solids, Non-Dispersed | 0.4 | 1 | 0.2 |
| 3% KCI drilling system | 1.5 | 3.75 | 0.6 |
| Injection liquid in air/foam application | 0.3 - 0.6 | 1 - 1.5 | 0.15 |
Typical Properties
| Physical Appearance | Cream colored, opaque liquid |
|---|---|
| Specific Gravity | 1.08 |
| pH (1% solution) | 8.0 - 9.0 |
| Pour point | -20°F (-28.9°C) |
| Odor | Slightly hydrocarbon |
Packaging
VIS-STAR ULTRA is packaged in 5 gallon (18.9L) buckets