M-I WATE high-quality barite | SLB


High-quality barite

Schlumberger Oilfield Services

M-I WATE™ barite is a high-quality, drilling-grade 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 except density.

M-I WATE is a mark of M-I L.L.C., an SLB company.

M-I WATE barite can be used to increase the density of any mud system. Mud weights up to 19.6 lbm/galUS [2.35 sg] can be achieved in most drilling fluids while still maintaining good flow properties. M-I WATE barite is also excellent in formulating special kill fluids and barite plugs that often reach 21.5 lbm/galUS [2.58 sg] for well control procedures.

  • 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
Typical Physical Properties
Typical Physical Properties Physical appearance Powder in various colors: gray, pink, or tan

Specifications Density Min. 4.1 g/cm3
Specifications Soluble hardness (as calcium) Max. 250 mg/kg
Specifications Particles >75 um (wet screen) Max. 3 wt%
Specifications Particles <6 um (sedimentation) Max. 30 wt%

Toxicity and handling

Bioassay information is available upon request. Handle as an industrial chemical, wearing protective equipment and observing the precautions described in the safety data sheet.

Packaging and storage

M-I WATE 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.