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Baryte or barite (BaSO4) is a mineral consisting of bariumsulfate and is derived from the Greek word βαρύς (heavy). The barite group consists of barite, celestine, anglesite and anhydrite. It is generally white or colorless, and is the main source of barium. Baryte and celestine form a solid solution (Ba,Sr)SO4. Barite used for drilling petroleum wells can be black, blue, brown or gray depending on the ore body.

The major demand for this product worldwide is as a weighting agent for drilling fluids in oil and gas exploration to suppress high formation pressures and prevent blowouts. An additional benefit of this product is that it is non-magnetic and thus does not interfere with magnetic measurements taken in the borehole. The American Petroleum Institute specification API 13/ISO 13500 governs baryte for drilling purposes. The latest physical and chemical requirements according to API Specification 13A published in August 2010 for 4.2 and 4.1 (density) drilling grades are as follows:

                        4.2 grade    4.1 grade
Minimum Density(g/ml)4.204.10
Maximum Water soluble alkaline earth metals(mg/kg)250250
When milled:  > 75 micron maximum 
                        < 6  micron maximum

Other applications for this product include filler in paint and plastics, sound reduction in engine compartments, coat of automobile finishes for smoothness and corrosion resistance, friction products for automobiles and trucks, radiation-shielding cement, glass ceramics and medical applications.

Plomp Mineral Services’ focus is on supplying crude and milled grades of barytes (with no or ultra low heavy metals content) for drilling applications.
Interested in our (crude) drilling grade ? Please contact us!
Product DataSheets and Material Safety DataSheet will be sent on request.