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Table 12 Types of particle size percents of different barite added to mud according to ASTM

From: Effect of barite and gas oil drilling fluid additives on the reservoir rock characteristics

Sample no. Barite content ppb. Clay  % 2 greater than microns Silt  % 2–75 microns Sand  % 75 less than microns
1 0 77 23 0
2 70 32 68 0
3 140 27 73 0