Salt is one of the minerals that are abundant in Iran. There are major salt mines in Garmsar, which have the highest purity. Salt extracted from these mines are used for food and industrial purposes. Iran is one of the biggest exporters of salt in the region and every year several hundred thousand tons of edible and industrial salt are exported from this country to neighboring countries. Salt has various industrial applications, one of these applications is its use in drilling oil wells. Industrial salt with a purity of more than 98% is used for drilling in oil wells. The use of salt strengthens the well wall. Well walls, especially wells that have less clay, are less strong, and there is a possibility of their falling at any moment during drilling operations. The use of salt can make wells that contain more sand more stable and reduce spills inside the well. Salt is mainly packed in one-ton jumbos and sent to the rig warehouse for use in the well.