Feature:

- It is a common and an inexpensive source of soluble calcium for lime-base drilling fluids.

- It is very effective in removing bicarbonate and carbonate contaminations from water-base drilling fluids.

- It increases viscosities and gel strength of (spud mud) for better hole cleaning. This is particularly an important issue in top hole drilling.

- It activates fatty acid based primary emulsifiers in oil based drilling fluids by converting them to calcium soap emulsifier in situ.

- It reduces corrosion rate by maintaining high pH.