A method and system for location a collar. A method for locating a collar may comprise disposing a logging tool within a plurality of concentric pipes in a wellbore, measuring one or more wellbore parameters, creating a corrosion detection tool log from the measuring one or more wellbore parameters, processing the corrosion detection tool log to determine a location and a position of a plurality of collars on the concentric pipes, and adjusting the corrosion detection tool log to account for the location and position of the plurality of collars. A system for locating a collar may comprise a conveyance line, a logging tool, and an information handling system. The information handling system may be capable to measure one or more wellbore parameters, create a corrosion detection tool log from the measuring one or more wellbore parameters, and document the location and the position of the plurality of collars.