M-I BAR barite is a high-quality, drilling-grade barite (barium
sulfate) used to increase the density of drilling fluids.
This high-specific-gravity mineral is the most widely used weight barite, has application in all drilling fluid systems, and meets all API
specifications for barite.
| Typical Physical Properties |
| Physical appearance |
Powder of various light colors: gray, pink, tan |
| Bulk density |
107–135 lb/ft3 [1,714–2,162 kg/m3] |
| API Specifications |
| Density |
Min. 4.20 g/cm3 |
| Soluble hardness (as calcium) |
Max. 250 mg/kg |
| Particles >75 um (wet screen) |
Max. 3 wt% |
| Particles <6 um (sedimentation) |
Max. 30 wt% |
Applications
M-I BAR barite can be used to increase the density of any mud system. Mud weights up to 20 lbm/galUS [2.40 sg] can be achieved in most drilling
fluids while still maintaining good rheological properties. M-I BAR barite is also excellent in formulating special kill fluids and barite plugs
that often reach 22 lbm/galUS [2.64 sg] for well control procedures.
An increase in volume of approximately 1.4 bbl/tonUS (0.25 m
3/tonUK) can be expected from M-I BAR barite additions. Density increases can
require water or base liquid dilution sufficient to wet the surfaces of the added barite adequately.
Advantages
- Essentially chemically inert and insoluble, functions only in a physical manner
- Does not react with other drilling fluid additives or interfere with their function
- Minimally abrasive
Toxicity and handling
Bioassay information is available upon request. Handle as an industrial chemical, wearing protective equipment and observing the precautions described in the barite safety data sheet.
Packaging and storage
M-I BAR barite is packaged in 100-lbm [45.4-kg] multiwall paper sacks; 40-kg sacks; and big bags available in bulk.
Store in a dry, well-ventilated area. Keep container closed. Store away from incompatibles. Follow safe warehousing practices regarding
palletizing, banding, shrink-wrapping, and stacking.
