BaSO₄
Barite — Barium Sulfate BaSO₄
Primary weighting material for drilling fluids. Density, grind (API) and contaminants must match the mud programme.
Application
Density control of water-based and oil-based drilling fluids. API-grade barite is specified by specific gravity, particle size and impurity limits; industrial grades are not automatically API-compliant.
Technical characteristics (quality certificate)
Typical values as stated on a mill quality certificate (passport) for a standard commercial grade. Actual lot values are confirmed in the COA / TDS for the selected manufacturer.
Specific gravity
≥ 4.20
API 13A
BaSO₄ content
≥ 90%
API 13A
Water-soluble alkalis (as Ca)
≤ 250 mg/kg
API 13A
Mercury (Hg, max)
≤ 1.0 mg/kg
API 13A
Cadmium (Cd, max)
≤ 3.0 mg/kg
API 13A
Moisture (max)
≤ 1%
API 13A
Particle size
≥ 97% < 75 µm (API grind)
API 13A
Reference profile for orientation. For each supply we confirm grade, origin and certificate data against your specification, well conditions and delivery requirements.
Typical functions
- Mud weight increase
- Wellbore pressure control support
- Weighting of selected completion fluids — if specified
Product information
- Chemical name
- Barium Sulfate
- Formula / class
- BaSO₄
- Appearance
- Grey to off-white powder. Colour is not a specification by itself.
- Packaging
- Typically 1.5 MT jumbo bags or 25/50 kg bags, depending on origin and logistics.
Specific gravity (e.g. 4.10 / 4.20), grind, Hg/Cd and water-soluble alkaline earth metals are producer- and lot-specific. Always request the governing specification (API 13A or customer standard).
In this category
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PAC LV
Low-viscosity polyanionic cellulose used to control fluid loss in water-based drilling fluids with limited impact on rheology.
Open product →PAC-HV
PAC HV
High-viscosity PAC providing both fluid-loss control and additional viscosity in water-based drilling muds.
Open product →CMC
CMC
Cellulose ether used as a fluid-loss additive and viscosifier in water-based drilling fluids, available in LV and HV grades.
Open product →