Junk catcher is a fishing tool used to catch relatively large objects suspended in drilling mud, such as chunks of rubber. The junk catcher is run on a wireline or tubular, has a slotted or perforated basket that is open facing down, and has a diameter just smaller than the casing diameter. The slots or perforations are designed to catch the debris as the drilling mud circulates through it. The junk catcher is often used just below a packer or other close-fitting tool.


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