... as a bridging and weighting agent in drilling, work over and completion fluids. CaCO3 powder / calcium carbonate (F,M,C)1. Advantages1)Acid ... -soluble, high-purity product which minimizes formation damage.2) High hardness, Calcium Carbonate resists ... Range (BSS mesh)Coarse30-80 MeshFine300 MeshesMedium150 Meshes CaCO3 powder calcium carbonate F,M,C