| Drispac® Polymers are high-quality polyanionic cellulose polymers. They are used for inhibition, water-loss control and viscosity in water-based muds. Drispac® Polymer comes in two viscosity grades: regular (high viscosity) and Superlo® Polymer (medium viscosity).
Drispac® Plus Polymer resists the formation of "fisheyes," even under the poorest mixing conditions. The highly dispersible Drispac® Plus Polymer also comes in regular (high viscosity) and Superlo® Polymer (medium viscosity) grades. Advantages
- Controls fluid loss
- Promotes fragile gels
- Inhibits hydratable, swelling shales
- Increases resistance of clay mud to contamination
- Non-fermenting, no preservative needed
- Good thermal stability
- Produces thin, slick, tough filter cake
- Environmentally compatible
- Retards drilled solids build-up
- Eliminates fisheyes in mud
- Reduces friction and can reduce ECD
- Works well on rigs with poor mixing facilities
- Works well at any salinity
| Application |
Material Needed |
| Drispac® Polymer & Drispac® Plus Polymer |
| Fluid-loss control |
.1 to 3 ppb (.3 to 9 kg/m3) |
| Inhibition/ encapsulation |
.75 to 3 ppb (2 to 9 kg/m3) |
| Improved filter cake |
.5 ppb (2 kg/m3) |
| Improved & stabilized rheology |
.5 to 1 ppb (2 to 3 kg/m3) |
| Reduced stuck pipe frequency |
.5 to .75 ppb (1 to 2 kg/m3) |
| Improved hole cleaning |
.5 to 3 ppb (2 to 9 kg/m3) |
|
Cost
The mixing efficiency of Drispac® Plus Polymer reduces loss of active product and promotes lower mud and total well costs. The purity and assured high quality of the products are also strong contributors to lower overall mud cost. Mud Types
Water-based drilling and drill-in fluids, work over fluids and completion fluids of any salinity. Most efficient performance with calcium below 500 ppm. Slightly more polymer needed at higher calcium levels. Mixing Requirements
Drispac® Polymer and Drispac® Plus Polymer: Mix slowly through conventional jet hopper.
Handling
For specific instructions on handling, refer to the MSDS. Packaging
Drispac® Polymer and Drispac® Plus Polymer: 50-pound, multiwall paper sacks |