size: 325mesh,400mesh,600mesh whiteness:75-80%,above 90% Hardness:3-3.5 usage: oil drilling paiting Filling of plastic

1. Specification:BaSO4 content : 90% MinCd(ppm) content : 0.7% MaxHg(ppm) content : 0.05% MaxAs(ppm) content : 0.1% MaxPb content : 0.087% MaxSpecific Gravity : 4.2g/cm3Residue greater than 75um (%) : 2.10%Particles less than 6um equivalent spherical diameter(%) : 25%Water soluble Alkaline Earth Metal as Ca (mg Ca/Kg) : 250mg/kg Max

barite for oil drilling (325mesh)  FAQ 

increase the drilling mud agent: In some wells, gas well drilling, the general use of the drilling mud, clay, accounting for around 25, the proportion of water to 1, so the lower the proportion of mud, sometimes mud weight can not be underground oil and gas pressure balance, causing blowout. In the ground under high pressure, the need to increase the proportion of mud, barite powder added to the slurry is an effective measure to increase the proportion of mud. Barite used in drilling mud to do the general fineness of 325 or more to achieve, such as the fineness of barite precipitation is easy enough. Requirements with the barite drilling mud weight is greater than 4.2, BaSO4 content of not less than 95%, less than 1% of soluble salts.