During each stage of production, completion and stimulation of the oil and gas wells, the formation may be damaged and thus the amount of production decreases. These damage can be due to the migration of particles of formations, deposits from insoluble materials due to temperature and pressure changes, paraffin and asphaltene sediments, emulsions, reaction products, drilling mud and many other factors. There are many ways to eliminate these damage and increase production. One of these methods is called acidification. Acid is injected into the well to stimulate the oil and gas producing layers to dissolve part of the formation and create
