Oil and gas exploration

Calcium chloride (CaCl2) and magnesium chloride (MgCl2) are used in several applications to improve efficiency and production in new or existing wells. Calcium chloride has many uses in establishing and maintaining oil wells, in drilling mud, completion and workover fluids, concrete accelerator and in packer fluids. For example, it helps well fluids to obtain the required consistency, increases density and stabilises shale formations. Magnesium chloride is used in specific layers as a completion and packer fluid, it seals well casings and displaces drilling mud. Calcium chloride is also used as a final processing step to remove haze from petroleum products.