PAC-STAR DLV
PAC-STAR DLV is used where fluid loss control is required, without affecting the beneficial rheological properties of the drilling fluid. PAC-STAR DLV is also effective in flooded reverse drilling where low viscosity fluids are required.
Application
PAC-STAR DLV is used where fluid loss control is required, without affecting the beneficial rheological properties of the drilling fluid. PAC-STAR DLV is also effective in flooded reverse drilling where low viscosity fluids are required.
Advantages
- Disperses quickly and produces minimal viscosity increase while providing fluid loss control
- Encapsulates shale particles to inhibit swelling and dispersion
- Resists bacterial attack, requiring no biocides or preservatives
- Effective in low concentrations for controlling fluid loss and building viscosity
Typical Usages
| Typical Amounts of PAC-STAR DLV Added to freshwater | ||
|---|---|---|
| Drilling Application | lb/bbl | kg/m³ |
| Normal fluid-loss | 0.25 - 1 | 0.7 - 2.85 |
| Saltwater systems | 1 - 3 | 2.85 - 8.6 |
| PAC-STAR DLV can be added quickly at the hopper or mixing system or directly to open tanks having reasonable mixing capability | ||
Typical Properties
| Physical Appearance | Tan, free-flowing powder |
|---|---|
| Specific Gravity | 1.5 -1.6 |
| pH (1% solution) | 6.5 - 8.0 |
Packaging
PAC-STAR DLV is packaged in 50-lb (22.7kg) multi-wall bags