Calcium carbonate is a chemical compound with the formula CaCO3. It is a common substance found in rocks as the minerals calcite and aragonite (most notably as limestone, which is a type of sedimentary rock consisting mainly of calcite) and is the main component of pearls and the shells of marine organisms, snails, and eggs. Calcium carbonate is the active ingredient in agricultural lime and is created when calcium ions in hard water react with carbonate ions to create limescale.
Applications:- The main use of calcium carbonate is in the construction industry, either as a building material, or limestone aggregate for road building, as an ingredient of cement. Calcium carbonate is also used in the purification of iron from iron ore in a blast furnace.
In the oil industry, calcium carbonate is added to drilling fluids as a formation-bridging and filtercake-sealing agent; it is also a weighting material which increases the density of drilling fluids to control the downhole pressure. Calcium carbonate is added to swimming pools, as a pH corrector for maintaining alkalinity and offsetting the acidic properties of the disinfectant agent.
Advantages CALCIUM CARBONATE is used to prevent fluid invasion of permeable zones, and to prevent loss of circulation during drilling, workover, and completion activities. … CALCIUM CARBONATE is also used as an acid soluble weighting material for drill-in or workover fluids with a density of 14.0 ppg or less.
Ground and sized Calcium carbonate is used to increase mud density and is preferable to barite because it is acid-soluble and can be dissolved with hydrochloric acid to clean up production zones. Its primary use today is as a bridging material in drill-in, completion and workover fluids. Sized Calcium Carbonate particles, along with polymers, control fluid loss in brines or drill-in, completion and workover fluids.
Appearance : White to nearly yellowish white powder and is nearly odorless.
Mesh size : 200,100, 400.
Packaging Available in 25/50 kgs net multi-wall paper bags with a polythene barrier.