Microcalcite (fine fillers, marble flour, ground marble, calcium carbonate)

Calcium carbonate, microcalcite, micromramor-due to its excellent qualities, calcium carbonate is the most popular material, used in almost all modern production facilities. Microdolomite is also quite often used-especially when drilling and servicing oil wells. However, the small benefit obtained when buying ground dolomite, which is cheaper than ground marble , is offset by the costs incurred by the well maintenance services afterwards.

The fact is that microdolomite (as well as dolomitized limestone) is much worse dissolved by hydrochloric acid. Whereas microcalcite is 98% soluble when interacting with hydrochloric acid. This factor distinguishes ground marble in comparison with ground dolomite, because as a result, expensive acid, time and cost of work on dissolving the filler are saved.

Therefore, in recent years, most major oil companies have put forward a requirement for oilfield service companies servicing oil wells to use exclusively ground marble.