STAR-DRILL RD
STAR-DRILL RD is a high molecular-weight, readily dispersible polymer designed for cuttings encapsulation and shale stabilization. STAR-DRILL RD was developed for a range of uses, from low solids to weighted muds systems. STAR-DRILL RD mixes and works well in fresh and salty make-up water. STAR-DRILL RD also acts as a viscosifier, friction reducer, and flocculant.
Application
Clear-water fluids STAR-DRILL RD may be used in clear-water, solids- free drilling fluids. STAR-DRILL RD enhances solids removal by flocculating low-gravity solids and increasing viscosity while providing cuttings encapsulation and improved wellbore stability. Low-Solids, Non-Dispersed (LSND) fluids in reduced-bentonite systems, STAR-DRILL RD extends bentonite to increase viscosity, flocculates drill solids for more efficient removal and encapsulates cuttings while improving wellbore stability. Weighted fluids STAR-DRILL RD can be used in weighted fluids for cuttings encapsulation, improved wellbore stability, viscosity and improved filter cake integrity. Sweeps Viscous STAR-DRILL RD sweeps are effective for periodic hole cleaning to help clear accumulated cuttings and maintain a clean hole.
Advantages
- Readily dispersible and does not form "fish eyes"
- Excellent cuttings encapsulation that limits cuttings dispersion
- Improved shale stabilization
- Will not negatively affect rheological profiles
- Coats and lubricates solids to aid in preventing balling on the bit, stabilizers and BHA
- Enhances the removal of drill solids
Typical Usages
| Typical Amounts of STAR-DRILL RD Added to freshwater | |||
|---|---|---|---|
| Drilling Application | lb/100 gal | lb/bbl | kg/m3 |
| Polymer mud systems | 0.6 - 2.4 | 0.25 - 1 | 0.7 - 3 |
| Mix STAR-DRILL RD directly into the active mud system or premix at higher concentrations in a separate pit or chemical barrel, then blend into the active mud system | |||
| For sweeps, mix STAR-DRILL RD directly in the active system at the suction pit or premix a high concentration in a separate pit and wait for the polymer to fully yield before pumping | |||
Typical Properties
| Physical Appearance | White, granular powder |
|---|---|
| Specific Gravity | 0.93 |
| pH @ 5 g/L | 5 - 9 |
| Activity | > 90% |
| Nature of charge | Anionic |
Packaging
STAR-DRILL RD is packaged in 33lb (15kg) multi-wall, paper sacks