A workover is a process used in the oil and gas industry to maintain or enhance the production of a well. This involves various operations, such as repairing equipment, replacing parts, or stimulating the well to increase its output. Workovers can be necessary due to issues like declining production rates or equipment failures. During a workover, specialized equipment, such as a workover rig, is employed to access the wellbore. The process can be complex and may involve techniques like hydraulic fracturing or acidizing to improve flow rates. Overall, workovers are essential for maximizing the efficiency and lifespan of oil and gas wells.