Barite
Three grades, so you buy the density your program actually calls for.
Barite is the weighting agent that lets a drilling crew hold precise hydrostatic pressure against formation pressure, and its whole value is consistency — a load that comes in under spec forces mud engineers to over-treat, and one that varies batch to batch makes weight-up unpredictable. API 13A recognises two drilling grades: the traditional 4.2 g/mL and the 4.1 g/mL alternate specification, which API issued in 2010 as high-grade 4.2 reserves tightened worldwide. We supply both, plus a 3.9 industrial grade for uses outside the API scope.
Grades Available
Pick the grade your program calls for.
| Grade | Specific gravity | Standard | What it's for |
|---|---|---|---|
| Barite 4.2 | 4.20 g/mL min | API 13A / ISO 13500 — Barite 4.2 g/mL | The traditional drilling grade. Highest density per unit volume, so you reach target mud weight with the least solids loading. |
| Barite 4.1 | 4.10 g/mL min | API 13A / ISO 13500 — Barite 4.1 g/mL | A full API grade, not a downgrade. Issued by API in 2010 as worldwide 4.2 reserves tightened. Same purity and particle-size requirements as 4.2. |
| Barite 3.9 | 3.90 g/mL typical | Below API drilling specification | For applications that do not require API certification. Confirm suitability against your program before ordering. |
Typical Specifications
What you're buying.
| Property | Value |
|---|---|
| Standard | API 13A / ISO 13500 (grades 4.2 and 4.1)PER STANDARD |
| Grades supplied | SG 4.20 · SG 4.10 · SG 3.90TYPICAL — CONFIRM |
| Density, API grades | 4.20 or 4.10 g/mL minimum by gradePER STANDARD |
| Water-soluble alkaline earth metals as Ca | 250 mg/kg maximum (API grades)PER STANDARD |
| Residue greater than 75 µm | 3.0% by mass maximum (API grades)PER STANDARD |
| Particles less than 6 µm | 30% by mass maximum (API grades)PER STANDARD |
Per standard values are requirements of the cited specification. Typical values reflect commercial norms and should be confirmed against the certificate of analysis for your specific shipment.
Principal Industrial Uses
Where it's used, and why.
Drilling Fluid Weighting
The primary weighting agent for water- and oil-based muds. Grade 4.2 reaches target mud weight with the least solids loading; grade 4.1 is the API-recognised alternate where 4.2 supply is tight or cost matters.
Well Control
Supports kill-weight fluid preparation, where predictable specific gravity directly determines how quickly a well can be brought back under control.
Industrial Applications
The 3.9 grade serves uses outside the API scope — high-density filler and aggregate applications where certification is not required.
Related Minerals
Often ordered alongside Barite.
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