STAR-PLEX
STAR-PLEX is a specialty product used to enhance Hi-Yield Bentonites. STAR-PLEX viscosifier is an inorganic extender for water-base bentonite drilling fluids.
Application
STAR-PLEX allows the formulation of fluids with exceptional LSRV - a drilling fluid with both excellent dynamic and static fluid characteristics. This is indicated by high yield point and low plastic- viscosity readings. When not circulating, the mud instantly returns to a gelled state and immediately suspends drilled cuttings. STAR-PLEX is compatible with anionic products such as detergents or polymers, unlike other inorganic bentonite extenders like mixed-metal oxide (MMO).
Advantages
- High rate of penetration
- Excellent cuttings transport
- Excellent cuttings suspension
- Borehole stabilization through "gel locking" in the formation
Typical Usages
Typical Amounts of STAR-PLEX Added to Hydrated Bentonite | |||
---|---|---|---|
Drilling Application | kg/m3 | lb/bbl | lb/1000gal |
Normal | 0.75 - 1 | 0.26 - 0.35 | 6.25 - 8.3 |
Extreme Viscosities | 2.5 - 3 | 0.7 - 1.05 | 17 - 25 |
STAR PLEX requires fully hydrated bentonite to optimize yields |
Typical Properties
Physical Appearance | White Powder |
---|---|
Specific Gravity | 2.8 - 3.1 |
pH (1% solution) | 10.5 - 11.8 |
Packaging
STAR-PLEX is packaged in 25-lb (11.3-kg) multi-wall paper sacks at 80 per plt and 25lb bkts at 64/plt.