STAR-TEX
STAR-TEX drilling fluid additive is a water-dispersible, asphaltic compound designed for stabilizing sloughing shale and assisting in reducing torque and drag.
Application
STAR-TEX mixes well in both freshwater and seawater environments. STAR-TEX disperses uniformly in the mud system and is free from "tar ball" formation in the mud pits or on shaker screens. STAR-TEX provides a slight deflocculating effect when added to the mud.
Advantages
- Stabilizes sloughing clay and shale
- Improves borehole stability
- Enhances filter-cake quality
- Lowers torque and drag
Typical Usages
| Typical Amounts of STAR-TEX Added to freshwater | ||
|---|---|---|
| Drilling Application | lb/100 gal | lb/bbl |
| Hole stabilization | 5 - 9.2 | 2 - 4 |
| Sloughing Shale | 9.2 - 19.2 | 4 - 8 |
| Reducing torque and drag | 5 - 14.2 | 2 - 6 |
Typical Properties
| Physical Appearance | Black powder |
|---|---|
| Specific Gravity | 0.98 |
| pH (1% solution) | 8.5 - 9.5 |
Packaging
STAR-TEX is packaged in 50-lb (22.7-kg), multi-wall, paper sacks